The CMYK color model (process color, four color) is a subtractive color model, used in color printing, and is also used to describe the printing process itself. CMYK refers to the four inks used in some color printing: cyan, magenta, yellow and key (black). Though it varies by print house, press operator, press manufacturer, and press run, ink is typically applied in the order of the abbreviation.

The "K" in CMYK stands for key because in four-color printing, cyan, magenta and yellow printing plates are carefully keyed, or aligned, with the key of the black key plate. Some sources suggest that the "K" in CMYK comes from the last letter in "black" and was chosen because B already means blue. Some sources claim this explanation, although useful as a mnemonic, is incorrect, that K comes only from "Key" because black is often used as outline and printed first.

The CMYK model works by partially or entirely masking colors on a lighter, usually white, background. The ink reduces the light that would otherwise be reflected. Such a model is called subtractive because inks "subtract" brightness from white.

In additive color models such as RGB, white is the "additive" combination of all primary colored lights, while black is the absence of light. In the CMYK model, it is the opposite: white is the natural color of the paper or other background, while black results from a full combination of colored inks. To save cost on ink, and to produce deeper black tones, unsaturated and dark colors are produced by using black ink instead of the combination of cyan, magenta and yellow.

Contents

·         1 Half toning

1.1 Screen angle

·         2 Benefits of using black ink

·         3 Other printer color models

·         4 Comparison with RGB displays

4.1 Spectrum of Printed Paper

Half toning

This diagram shows three examples of color half toning with CMYK separations, as well as the combined halftone pattern and how the human eye would observe the combined halftone pattern from a sufficient distance.

Main article: Halftone

With CMYK printing, half toning (also called screening) allows for less than full saturation of the primary colors; tiny dots of each primary color are printed in a pattern small enough that human beings perceive a solid color. Magenta printed with a 20% halftone, for example, produces a pink color, because the eye perceives the tiny magenta dots on the large white paper as lighter and less saturated than the color of pure magenta ink.

Without half toning, the three primary process colors could be printed only as solid blocks of color, and therefore could produce only seven colors: the three primaries themselves, plus three secondary colors produced by layering two of the primaries: cyan and yellow produce green, cyan and magenta produce blue, yellow and magenta produce red (these subtractive secondary colors correspond roughly to the additive primary colors) plus layering all three of them resulting in black. With half toning, a full continuous range of colors can be produced.

Screen angle

To improve print quality and reduce moiré patterns, the screen for each color is set at a different angle. While the angles depend on how many colors are used and the preference of the press operator, typical CMYK process printing uses any of the following screen angles

C	15°	15°	105°	165°
M	75°	45°	75°	45°
Y	0°	0°	90°	90°
K	45°	75°	15°	105°

Benefits of using black ink

A color photograph of the Teton Range.

The image above, separated for printing with process cyan, magenta, and yellow inks.

The same image, this time separated with maximum black, to minimize ink use.

The "black" generated by mixing commercially practical cyan, magenta and yellow inks is unsatisfactory, so four-color printing uses black ink in addition to the subtractive primaries. Common reasons for using black ink include:

· In traditional preparation of color separations, a red Keyline on the black line art marked the outline of solid or tint color areas. In some cases a black Keyline was used when it served as both a color indicator and an outline to be printed in black. Because usually the black plate contained the Keyline, the K in CMYK represents the Keyline or black plate, also sometimes called the key plate.

· Text is typically printed in black and includes fine detail (such as serifs), so to reproduce text or other finely detailed outlines, without slight blurring, using three inks would require impractically accurate registration.

· A combination of 100% cyan, magenta, and yellow inks soaks the paper with ink, making it slower to dry, causing bleeding, or (especially on cheap paper such as newsprint) weakening the paper so much that it tears.

· Although a combination of 100% cyan, magenta, and yellow inks should, in theory, completely absorb the entire visible spectrum of light and produce a perfect black, practical inks fall short of their ideal characteristics and the result is actually a dark muddy color that does not quite appear black. Adding black ink absorbs more light and yields much better blacks.

· Using black ink is less expensive than using the corresponding amounts of colored inks.

When a very dark area is desirable, a colored or gray CMY "bedding" is applied first, then a full black layer is applied on top, making a rich, deep black; this is called rich black.[7] A black made with just CMY inks is sometimes called a composite black.

The amount of black to use to replace amounts of the other ink is variable, and the choice depends on the technology, paper and ink in use. Processes called under color removal,under color addition, and gray component replacement are used to decide on the final mix; different CMYK recipes will be used depending on the printing task.

Other printer color models

CMYK or process color printing is contrasted with spot color printing, in which specific colored inks are used to generate the colors appearing on paper. Some printing presses are capable of printing with both four-color process inks and additional spot color inks at the same time. High-quality printed materials, such as marketing brochures and books, may include photographs requiring process-color printing, other graphic effects requiring spot colors (such as metallic inks), and finishes such as varnish, which enhances the glossy appearance of the printed piece.

CMYK are the process printers which often have a relatively small color gamut. Processes such as Pantone's proprietary six-color (CMYKOG) Hex chrome considerably expand the gamut. Light, saturated colors often cannot be created with CMYK, and light colors in general may make visible the halftone pattern. Using a CMYK process, with the addition of light cyan and magenta inks to CMYK, can solve these problems, and such a process is used by many inkjet printers, including desktop models.

Comparison with RGB displays

Comparison of some RGB and CMYK color gamut on a CIE 1931 my chromaticity diagram.

Comparisons between RGB displays and CMYK prints can be difficult, since the color reproduction technologies and properties are very different. A computer monitor mixes shades of red, green, and blue light to create color pictures. A CMYK printer instead uses light-absorbing cyan, magenta and yellow inks, whose colors are mixed using dithering, halftoning, or some other optical technique. Similar to monitors, the inks used in printing produce a color gamut that is "only a subset of the visible spectrum" although both color modes have their own specific ranges. As a result of this items which are displayed on a computer monitor may not completely match the look of items which are printed if opposite color modes are being combined in both mediums. When designing items to be printed, designers view the colors which they are choosing on an RGB color mode (their computer screen), and it is often difficult to visualize the way in which the color will turn out post printing because of this.

Spectrum of Printed Paper

To reproduce color the CMYK color model codes for absorbing light rather than emitting it (as is assumed by RGB). The 'K' component absorbs all wavelengths and is therefore achromatic. The Cyan, Magenta and Yellow components are used for color reproduction and they may be viewed as the inverse of RGB. Cyan absorbs Red, Magenta absorbs Green and Yellow absorbs Blue (-R,-G,-B).

If you would like to learn more from us about CMYK, please feel free to tcontacy with out engineer ot sales, visit here

or learn RGB colours here.

Author: Tommy Jin, sales manager of shanghai custom packaging Email: tommy@shpkg.com

description

When punching flat elements of varied materials (metal sheets, cardboard, textiles, etc.) area unit factory-madewith a press or punch and a cutter. The separation method utilized in this case is that the cutting.

A punching tool composed of the stamp, that represents the inner form of the die which a correspondinglyunionaperture (example: punch) has. The stamp is also betting on the tool style each higher, the lower a part of the punching tool. [1] betting on the appliance, the counterpart of the stamp is also a flat surface. Then there's the toolhigh a part of a correspondingly formed, closed punching knife (for example on a belt punch or punches).during thiscase, the pad isn't a part of the tool.
Stringing Gereihtes periodic punching for cutting of sheet elements is (. Nibble eng) than nibbling referred.
When superior cutting area unit processes like fastening, crimping, absorbing and forming integrated into special progressive tools. This partly extremely advanced tools, it's effective to use and effectively protected.
The waste generated throughout punching area unit known as slugs.

When punching of cardboard and cardboard, the punching tools additionally to the cutting knives and creasing rules,thus cutting and creasing (Preparing the plicate edges) occur during a single operation; during this case, the stamping pad is typically supplied with creasing matrix.

The cutting of non-metals was initial, chiefly utilized in the assembly of animal skin for shoe production. sharp sharpened spring steel bands were placed around a picket core corresponding form and riveted or nailed. Later cold-rolled, polished and hardened steel was used. The steel was bent pressboard stencil so welded. additionally castknife,particularly for the shoe sole production came long used.

A little later - partially parallel - development of die-cutting, that is currently additionally usually remarked as die. Heresteel bands area unit bent (cutting lines), so in slots in carrier plates - to be used, that area unit incorporated by scrollsaws or by optical maser cutting (Glaser fiber per waterjet cutting system) - sometimes fabricated fromwood. They function fixation for cutting lines. The areas between the cutting lines area unit as an example full ofrubber material so as to permit the ejection of the cardboard material. Associate in Nursing example is that theproduction of cardboard packaging, beer mats, thermoforming articles and puzzle elements.

CNC punching

With CNC punching moves the die, sometimes many during a magazine, on the punching material and punches attotally different locations. This technique is principally utilized in engineering to ofttimes continual openings in metalsversatile punching (for example vents). the method is employed wherever a versatile production of series of smaller and medium quantities is needed. Today, the tactic is employed in applications wherever the employment of a optical maser procedure is uneconomical or technically not possible.

If you are interested in more structure of the die-cutting, please view our website PDF files here:http://www.shpkg.com/download/basic-box-shape-style-reference.html

Thanks for reading

In the printing trade, Embossing refers to a technique of pressing a picture into paper or cardstock to make a 3 dimensional style. Text, logos and different pictures will all be shaped by the embossing methodology. Embossing ends up in a raised surface, with the planning more than the encompassing paper space. an analogous however less common technique is Debossing. Debossing ends up in a depressed surface, with the planning less than the encompassing paper space.

Often utilized in combination with foil stamping, embossing alters the surface of paper stock or different substrates by providing a three-dimensional or raised result on selected  areas. The procedure needs the employment of 2 dies: one that's raised and one that's recessed.

The method.

The embossing and debossing procedures involve the employment of 2 metal dies – one features a raised surface on that and therefore the different features a coupling surface recessed into it. the 2 dies work into each other. A paper sheet is placed between the 2 dies and so heat and pressure ar applied to squeeze the raised die into the recessed die. almost like being ironed by Associate in Nursing iron, the paper fibers for good reshape to require on the meant style.

Practical Applications.

Embossing provides a glance of prime quality and magnificence, therefore you'll usually see embossing on items that aim to impress – presentation folders, business cards, invites, certificates, folder covers. Embossing will produce more distinction once employed in conjunction with gold foil or a spot ultraviolet radiation coating. The image space may also be pre-printed before being adorned  to produce a motivating 3D impact.

What is Blind Embossing?

It is quite common for a style to be adorned  while not exploitation any printing or thwarting within the style. this is often referred to as Blind Embossing. In part of ink or foil, the embossing method alone creates the text or style on the paper. a awfully straightforward example of blind embossing is that the seal applied to documents by a notary.

Textured paper is often used for Blind Embossing as a result of the method not solely raises the planning, it additionally provides the choice of pressing the paper swish wherever it's adorned . This provides extra distinction against the rough-textured space close the adorned  style.

If you'd prefer to see more works embossed, please send email to us:

General : marketing@shpkg.com
Mark Guo : mark.guo@shpkg.com
Eric Liu ： eric@shpkg.com
Wendy M : wendy.zhu@shpkg.com
Oscar W ：oscar.he@shpkg.com
Bruce Chen ：bruce.chen@shpkg.com
Elena Ruan : elena.ruan@shpkg.com
Jack Li : jack.li@shpkg.com

Tommy Kim: tommy@shpkg.com
Let's Get contacted !

Foil stamping, (also called foil application) usually a poster printing, is that the application of gold-bearing or pigmented foil on to a solid surface by application of a heated die onto foil, creating it for good adhere to the surface below effort the look of the dye.

Principles of business stamping

Industrial stamping is plastically deforming steels (without returning to the first shape) through tools referred to as "matrices" put in on presses (hydraulic, mechanical, screw) or hammers. This hot formation method may be exhausted many phases, the primary is named blanks, and therefore the last end.

The blanks accustomed distribute the metal, so typically a cylindrical or parallelepipedal form, to a form approaching the end. The last blank features a larger vertical dimension, and smaller horizontal dimensions of some millimeters at most with reference to the end, permitting energy losses while not formation thanks to friction on the walls of the cavity. The draft conjointly presents additional rounded corners that end. Indeed, the angles ar the foremost troublesome to fill in terms forge.

Finishing ends the deformation of the fabric. The result includes the blank and therefore the burr. The latter is AN more than metal that may be found round the area and that ensures correct filling of the impression. The flash is then separated from the blank through another formation process: deburring.

Punching is followed by completely different heat treatment processes like hardening, extinguishing and tempering.

The main interest of stamping face the metalworks could be a layout of the inner structure of the steel, leading to high mechanical characteristics. The metalworks doesn't permit this internal deformation as a result of the steel structure seems at the transition between the liquid and solid phases.

Stamping could be a technique the same as formation. The distinction between these 2 strategies is that the use of various metals. Stamping focuses on formation steels, composed chiefly of iron, and mastering the formation of non-ferrous metals.

artistic technique

modern and recent dies for stamping bells decorations.

Main articles: etching, engraving and molding.

Stamping could be a copy technique that offers prints ANd produces eventually the consequences of relief with clay printing during a hollow mould or a bit of paper on an graven plaque.

More typically, the stamping is a creative technique accustomed form or raised by the imprint of a tough material during a malleable material.

Thus, major sculptures ar altered (with a fineness of realization unachievable by molding techniques) by stamping in clay plaster forms and manual redaction area by area. types of plaster ar typically themselves factory-made by direct impression from the first sculpture.

Depending on the quality of the work many forms is also needed. They kind a hollow three-dimensional puzzle. Clay parts formed by stamping in such plaster forms ar then assembled along exploitation suspension (same clay however additional liquid) and formed into the finer details. every area has force the "leg" of the sculptor creator United Nations agency retouched. The items ar then dried, barbecued and generally mellow.

Stamping in China

Stamping a stele of the fourteenth century reproduced by Edouard Chavannes (1902).

Related article: Chinese packaging.

Ancient China is experiencing a variation of this method. but the Chinese stamp could be a copy smear on special paper of a piece that originally wasn't meant for this use: ceremonial occasion relief, inscription graven in stone (old copies of paintings missing line). however the stele bearing the classic Chinese handwriting were designed for stamping.

Stamping could be a technique of copy is one in all the explanations being the stele. This preserves the first text however stamping permits to transmit and distribute the text as a creative calligraphy: a sheet of paper is applied with a wet brush to marry in his burning detail. came back the dry surface is then dabbed with ink: the parties United Nations agency married the hollow of the engraving can seem in white on black background. The forest of steles, or Xi'an Beilin repository (famous repository of the city), is that the Chinese center of this activity qualitative analysis back to the third century.

The rubbings of Han and Tang eras ar sought-after however false abounds.

In the near past, chinese start apply thr gold sttamping (gold foil stamping) in the printing and packaging area. when producing corrugated box, gift box, paper bag, paper tube, waxed box, printing service, customer always asked to add this procedurement to make their box fancy.

Other use

Stamping was utilized in paleography to urge the precise copy of a registration intransportable.

Below is some samples showed how we put gold stamping onto boxes:

http://www.shpkg.com/product/moon-cake-gift-box-with-gold-insert.html

http://www.shpkg.com/product/paper-bag-with-gold-stamping.html

http://www.shpkg.com/product/cosmetic-packaging-box-with-gold-stamping.html

http://www.shpkg.com/product/square-paper-box-with-gold-stamping.html

If you have any more questions, please feel sree to contact with out design team or engineer, thanks!

Matt finish could be divided for marr lamination and matt varnish.

MATT LAMINATION… is employed extensively on booklet or report covers, making a 'plasticy' matt end. The down facet is that it will be liable to finger-marking and scratching. a preferred use is to matt laminate and 'spot' ultraviolet light varnish to make a matt and gloss distinction.

MATT VARNISHING is a packaging varnish Hawkeye State a liquid coating applied to written box surface once the coated poster board is litho written.

Varnishes work well with oil and acrylic because the paint films are relatively thick and separate from the surface. Varnishes do not work well with Gouache, water colour and drawings because the varnish will be deeply absorbed by the paint and/or paper, becoming an integral part of the picture and could cause discolouration. In addition, varnishes on works created using Gouache, water colour and drawing cannot be removed.

Above may be a luxury cardboard gift box, matte red, with the high impact spot ultraviolet illumination varnishing for the brand image.
Speical blessings
1. printer's ink dries quicker.
2. Rub resistant by preserve the ink beneath a protecting coating. Protects the ink from rubbing off once the written box is subjected to rough handling.
3. Provides a swish and consistent texture to the box surface with a nice tactile expertise.
Matte Varnishing
A matte varnish provides the written box a non-glossy, swish even surface free from shine. This matte end on the written box adds to the sensation of luxury. it's the foremost common end utilized in the posh packaging of the cosmetics and jewellery merchandise and etc once the vendor needs to impart a luxury quality feel to the potential customers.

Author: Elena Ruan, sales manager of shanghai custom packaging Email: elena.ruan@shpkg.com

Brief Introduction

UV printing is completely different from typical printing in some ways. it's still ink on paper however the ink dries, through a very completely different method. rather than having solvents within the ink that evaporate into the air and absorb into the paper, ultraviolet radiation inks dry through a process method. once the inks area unitexposed to ultraviolet lights they flip from a liquid, or paste, to a solid. there's considerably less evaporation of solvents and much less absorption of the ink into the stock.

Functionality

The ink does not dry - such as on a sheet of paper - to the surrounding air, but is cured immediately after application to the surface of the printing substrate (substrate) with ultraviolet light. The dried ink has a slightly satin appearance that a printed paper quality very close to that. This results in a disadvantage in durability under sunlight or adverse weather conditions.

Advantages and disadvantages of direct printing

Benefits

• low cost (by printing directly on the material is no further processing such. B. Lamination required)

• high numbers due to low production time (see first point) possible

• high flexibility of printing materials

• Pressure on structured materials (eg. B. Warzenblech) possible

• very high maximum pressure level (about 10 cm)

• White ink as covering / metro or spot color

Disadvantages

• no protection against mechanical stress as laminated materials

• mostly limited panel size (common UV-direct printers usually have only a maximum print size of 3.20 m × 2.05 m)

• without lamination or varnishing no change in the surface appearance possible.

Durability

The durability of the UV direct printing according to the present standard is given as two to three years outdoors. However, an essential component of this durability specifications is also the choice of material. Depending on the weather and climatic influences, after which time the pressure because the ink is on the material and down. A color fading is almost impossible due to the current knowledge.

Common print materials

• PVC rigid foam panels (forex)

• aluminum composite panels (Dibond)

• hollow panels, especially for short-term missions such. B. Elections suitable

• PETG (similar polycarbonate)

• Wood

• metal

• cardboard

• Acrylic / plexiglass / mirror / glass (liability must be ensured by an adhesive primer or special inks. The primer is a streaking not completely excluded)

Through the role of some option Direct printer, it is possible to print and classic roll materials such as paper or tarpaulin materials with a direct printer. Especially in the area of short-term fair use this manufacturing method can also be used in classic presentation media such as folding walls. The advantage here lies in the complete drying of the ink prior to further processing. This makes it possible to save time in processing.

Manufacturers of Direct printing machines

Meanwhile UV direct printers are offered by almost all known printer manufacturers. In essence, the machinery of the major manufacturers differ by the achievable print resolution, white printing / coating option, the role option and the maximum print size. In 2010, the print quality of the major manufacturers has increased to an almost equal level. It is anticipated that the next step will be the achievable square power while maintaining print quality. This has almost doubled in the past two years in 2008.

Another particularly characteristic are the various safety precautions to the printer that prevent and prevent the operator is exposed to the UV light from the lamps directly z. B. bruises. The uncured inks, which are used as aerosol in the environment, a considerable danger. An extensive protection against the "Ink-Misting" (ink mist) is imperative.

Print quality

The initial print quality of UV direct pressure was strongly inferior to the conventional solvent printing on vinyl film (for z. B. yard signs). This was a maximum of 300 dpi before the end of 2006. In 2008, the maximum achievable printing resolution is increased to 1,440 dpi. This way high quality photo prints for. Example on acrylic or Aluverbundmaterialien are possible. The print quality is now therefore the conventional printing hardly gradually is often used precisely because of the glazed surface of the print for decoration products.

What our company's advantage?

shanghai custom packaging have several printing machines, in order to meet customer's different request. the UV varnish is a complicated process, however some process has been handled by machine many years ago, meanwhile other factories still use hand work.

we have 3 times checking on the UV file, and engineer engaged in accurate UV spot on the box.

here are some example products for you a better understanding:

Glass Packaging Box with rope handle SPOT UV VARNISHING

Black TELESCOPE Packing Box for Camera

Author: Elena Ruan, sales manager of shanghai custom packaging Email: elena.ruan@shpkg.com

introduction

Offset printing is an indirect method of lithographic printing. The offset printing method has far verbeitet in today's everyday life and the classical typography displaced very quickly. Currently an estimated 60% of all printed material produced by the offset printing process. Offset printing is based basically on the stone pressure (direct inking of the ink ribbon to print object and thus direct printing process) and has evolved into an indirect printing method.

Offset printing - printing technology

As a planographic printing method is based also the offset printing on the different physical reaction of water and fat. This surface structure uses one to spend color and remaining free space on the same level. Only on the fat (lipophilic) surface adheres the fat- or oil-based paint. The hydrous (hydrophilic) surfaces repel the ink. This leaves only color to be printed surfaces stick.

The pressure cylinder with the inking (print form) is printed directly on the printing object, but switched a blanket cylinder (blanket) in between. This has its historical cause that could not reasonably be printed otherwise hard print objects (such as zinc on sheet). Also, the color adherent surfaces thus consume less quickly. The print object (usually paper) is thus pressed by the impression cylinder to the blanket cylinder and conveyed. The power transmitted to the blanket cylinder color sticks to the paper. Overall, therefore, the print object is printed only indirectly via the blanket cylinder. Hence the term offset forwards settle for or offset from what was eponymous for offset printing.

From print object (substrate) ago, all flat materials can be printed. This is known as a thin sheet of material. Because of the blanket as a transfer agent also papers with rough surface can be safely printed so about.

Since the print object is wetted printing process, size shifts are possible, provided that the material to be printed reacts-swelling water.

Offset printing - the colors

The printing unit (printing) is a color possible. It is also described as an inking unit. one starts from the most commonly used color space CMYK, you can already cover with machine with four color works very many colors. Even if only cyan, magenta, yellow and black are available, almost any mixing ratio may be generated by a fine grid. This is based on an optical blurring of the human eye, which can recognize only from close the individual color points of the four colors. These are printed as small dots sent next to or above each other, so that the human eye perceives a semitone (mixed color) is created. This can be seen from the photos in detail in almost every major newspaper.

For colors outside the color model and special colors such as gold, silver, there are several other color palettes such as Pantone.

Does the printing machine for more than four inking units can be a previously precisely commingled full color as so-called spot color to the four basic colors and their gridded "mixture" use. This makes sense when it comes in the context of a corporate look (corporate design) on a certain hue. So this must not be imitated by a scan, but can be applied as ready-mixed color.

To achieve the standard color scales in the print result, there are different quality criteria for the colors (pigments). In addition, care, expertise and saving drive of the printing machine operator play a not insignificant role.

Sheetfed offset and web offset printing

Used as substrate cardboard or paper, one can distinguish between sheetfed offset and web offset printing. If the paper individually fed in sheet form, one speaks of the sheetfed offset printing. the paper comes out of (sometimes very large, extremely heavy) paper rolls, one speaks of the web offset printing. In sheetfed offset printing, a distinction according to the size (paper size) of the fed sheets.

Sheetfed offset printing makes regularly from 1,000 to 50,000 pieces sense. For long runs (economically from about 50,000 copies) therefore one uses paper rolls, so that most of the web offset printing is used in newspaper printing, catalog printing or label printing. still is for very high volume of the rotary printing more economic and possibly faster alternative. The relevant print run shifts but more and more in favor of web offset printing. With approximately 700,000 pieces per edition both printing processes competing mostly at the same level.

The newspaper format are usually also due to printing (size: broadsheet, small: Tabloid).

Waterless offset printing

Also, the waterless offset printing method is a method of lithographic printing with indirect inking. And also in this method, the printing plate has to be printed points which are wetted with ink and those which do not receive ink.

The difference lies in the surface treatment of the non-printing positions. During this the wet process - as described above - are coated with water, comes in the dry method, a thin layer of silicone used. The silicone eliminates the use of water completely, and thus leads to a series of advantages over the conventional method. For example, also eliminates the use of the chemical components such as isopropanol. In addition, the balance between water and chemical components no longer matters what cancels their binding to machine time and personnel expenses and so the spoilage reduces by 30 to 60 percent.

Advantages of waterless offset printing

high process stability

low start-up waste

less ink consumption

no paper sources

fewer registration problems

better printing of wide web

no ink zone presetting and fan-out correction

thicker layers of paint possible

no corrosion of metal colors

better fine detail

lower dot gain

Suitability for particularly fine screens, FM screening, periodic scanning and fine reverse type in solid areas

simpler, quieter and smaller machines

lower maintenance and cleaning

no corrosion of steel components

no treatment, control and disposal of the dampening solution

reduced dust exposure

Lower emissions

Gumming of plates not necessary

disadvantages

Plates are expensive and susceptible to scratching

Plates are hard to correct

Printing inks are more expensive, not all colors available, some special binder needed in the colors

sometimes highly speedy colors are needed

sometimes the addition of silicone oil is needed

Printing process is temperature sensitive

the engine cooling necessary

Ausgerupfte paper fibers are not removed, thereby more slugs

Offset printing - the characteristics

Since the printing plate having no increases (high pressure), no coins or shades make their way on the printing object. The round sharpness of characters is high. Only the grid can be seen on closer inspection. Incorrect positioning of the dots and / or incorrect angulation of the halftone dots, a pattern of staggered small circles yields (Moiré effect). This error is easily recognizable.

In offset printing process prints produced on the basis of the film are water and weather resistant and resistant to UV rays.

Shanghai custom packaging co., ltd offer such high quality printing works, if you are interested in, please feel free to contact us.

here are some example products for you a better understanding:

Pink Success Packaging Box

Paper Box Laminated Waterproof with Plastic Handle for Vegetable

One Piece Fruit Box with Handle