Different Style of printing
Different Style of printing
Most materials square measure washed before any writing begins to get rid of any finishing chemicals or size agents, substances superimposed to cloth close to the tip of the producing method which will impede the dye’s ability to figure well.
Then, the coloring agent is ready. Most materials square measure coloured and adorned by dyes, typically thickened to a paste-like consistency in order that they keep wherever they’re written and do not bleed onto different areas of the material. Why dye? in contrast to paints, that stay the surface, dyes penetrate into cloth fibers, creating them additional permanent.
Different styles / techniques of printing:
- Direct style
- Resist style
- Discharge style
- Special style
Some special printing style…..
- Flock style
- Dyed style
- Burnt out
- Blotch printing
- Air brush ( spray) printing
- Photo printing
- Batik / tie dye etc.
Methods for material Printing
There square measure 2 basic printing strategies, direct printing and resist printing.
Direct Printing
Direct printing is wherever a dye is employed to feature color on to cloth.
Block printing
One of the oldest direct printing techniques is block printing. you’ll realize examples chemical analysis back thousands of years. In block printing, a style is engraved into a tough substance like wood. Then, cloth is arranged out flat, and therefore the block is swayback in dye and ironed onto the material. Here’s a picture of a person victimisation special printing blocks to embellish a sort of ancient cloth from Gold Coast referred to as Adinkra textile.
Man printing Adinkra textile
As the image illustrates, block printing does not need several tools and might be done manually. the method is solely continual till the specified impact is reached. Some printing blocks will be quite convoluted, as in these samples of patterns used on materials from Bharat.
Engraved roller printing
Similar to block printing however taking the concept to a way additional industrial levelis carve roller printing. an outsized copper cylinder is carved with styles that square measure then written on cloth because it is fed through a machine. the look repeats as over and over as required. several materials written in factories within the eighteenth and nineteenth centuries were created with this method.
Screen printing
Screen printing uses a pattern or model with gaps in it for the look, that is burned onto a screen with associate exposure light-weight. Ink is pushed into the pattern, going color on the material through the gaps within the pattern. Screen printing will be done flat or on a rotary machine. A separate screen should be used for every color.
A colour design on a white or colour back ground can be produced by using the Different style of printing such as direct printing ,discharge printing and resist printing.
1.Direct printing
1.In direct printing the dyes are printed directly at the required places of the multi colour design on the fabric using the other portion black.
2.In the multi coloured print on the white ground can be produced.
3.This style of printing called as steam printing. Because in most cases the printed fabric is steamed at to fix the colour on fabric.
4.For this printing, thickness,binder and required ingredients and after printing and drying the colour is fixed by steaming or thermoforming or treatment with Chemical.
5.For the direct style ,Mordant colour,vegetable colour,pigment and certain mineral colour are applied.
Limitation
1.coloured blotches with sharp outline and free of specks are difficult to produce by the direct style.
2.It is difficult to incorporate small colored motifs or dark ground by this style.
3.It is difficult to print the knitted goods in fine design with sharp outline by style.
2.Discharge printing
1.The discharge printing involves the uniform dyeing of the fabric by any of the conventional dyeing method followed by drying and printing
2.the dye present on unprinted area un affected,so that a white design is produced on colored ground This is known as white discharge printing.
3.discharge agent required in paste and printed fabric steamed,a colored ground. this is know as coloured discharge printing.
4.In both these white and coloured discharge printing ,the ground colored the ground colour should be easily and cemetery dischargeable otherwise pure white effect or pure coloured effect can not be obtained.
5.disharge printing the whole cloth is first dyed and then printed with paste containing a chemical discharging agent. capable of attaching the dyes locally .the printed cloth is again treated with steam and washed. so that the finally it shows a white or light pattern on coloured background.
Advantages
1.It allows of white and coloured pattern being produced a shade,fullness,richness by printing
2.production of sharp outline
3.low coverage pri ting
4.while effect produced both side of fabric
Limitation
1.only discharged coloured used since all colour are not discharge.
3.Resist Printing
1.Resist style printing is applicable to those classes of dyes which are dyed on the fabric by two or more separate chemical process.
2.the resist is applied to cloth before it is dyed.
Advantages
1.It allow off white and coloured patter being produced on dyed ground
2.we obtained depth of shade and fullness and richness of colour.
3.A resist which will prevent fixation of colour.
4.The cost of resist printing is low and required less chemical and auxiliaries.
5.All colour are capable of being resist .
Feature of Printing:
- Printing is applied in style of style or pattern. Single or multi color is applied.
- A special sort of viscous liquid is employed to carry the dye/pigment & chemical that is named ‘Print paste’.
- High consistency of print paste helps dye to stick to surface of fibre. however the fixation is finished by applying steam that is named ‘curing’
- For colouring low viscous or binary compound medium is employed however printing is finished in wet viscous medium.
- The Dyes used for printing largely embrace vat, reactive, phenol (azoic) and disperse dyes that have smart fastness properties.
- The pigments, that don’t seem to be actually dyes, are used extensively for printing. regarding ninety six is finished by pigment. These colours square measure mounted to the fiber through binder.Alternative method of textile printing :There square measure some different processes for applying colourful style on material. however printing is that the least expensive method that’s why it’s wide used. the opposite processes are……..
- By unreal yarn in style of plain-woven material.
- Embroidery
Difference between Dyeing and Printing :
| SL | DYEING | PRINTING |
| 1 | Uniform coloration along the length & width. | Color is applied in form of design. |
| 2 | No localized application. | Localized dyeing. |
| 3 | Back & face side are same. | Back & face are different. |
| 4 | Applied in aqueous medium of low viscosity. | Applied in viscous medium in paste form. |
| 5 | Thickener is not used. | Thickener is used. |
| 6 | M:L is higher. | low |
| 7 | No specific design is needed | Color is applied according to the design. |
| 8 | Fibre, yarn, & fabric can be dyed. | Only fabric is printed. N.B: There is a special process of yarn printing called ‘space dyeing’ |
TRANSFER PRINTING VS. DIGITAL PRINTING
Let us withdraw into associate degree investigation into the character and key options of Transfer Printing as compared to Digital Printing.
Transfer printing
Transfer printing, or sublimation printing because it is additionally famous, may be a technique or method that involves the printing out of a style onto a versatile base material and so later transferred onto a textile.
Digital printing is associate degree invention that involves design being processed by a laptop, and so written directly on to the surface of the material.
Key options
1. Imaging features: each transfer printing and digital printing provide designers the power to form styles in an exceedingly 1000s of colors, one thing that has ne’er been attainable with ancient screen printing.
2. style detail: Transfer printing permits the designer to form sure sorts of styles or effects that can’t be replicated by the other variety of printing, whereas digital printing permits for a photo, with far more detail than ancient sorts of printing.
3. Costing: The styles in Transfer printing are written onto non high-priced and non large substrate (base materials) like paper and solely then written onto the costlier materials per the demand for the look saving each time and cash. On the opposite hand, in digital printing, the pc and printers ar massive just one occasion investments, however enable price savings throughout short runs that don’t seem to be possible for screen printing because of the value of screens.
4. Trained Labour: the method of transfer printing is additionally uncomplicated and fairly straightforward to execute, thus it doesn’t need a high level of ability. On the opposite hand, digital printing needs trained labour to air hand to execute it.
5. easy Production: Transfer printing eases the assembly of short run repeat orders whereas digital printing is that the best method for single garment orders.
6. Accuracy of Production: the method of transfer printing needs fewer pre- and post-processes, as compared to digital printing, that permits for lower wastage or errors in printing. Digital printing technology, however, is progressing speedily.
7. instrumentation and materials: Transfer printing is a lot of usually on the market for unreal fibre fabrics like polyester. Digital printing is accessible for each natural fiber materials (such as cotton) and unreal fibre materials (such as polyester). However, totally {different|completely different} machinery is needed for every sort of material since the inks used for natural materials (reactive inks) is different from those utilized in unreal materials (disperse dyes)
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