Knowledge Of Fur Printing For Garment Accessories

< p > > a href= "http://www.91se91.com/" > fur printing > /a > machine printing and hand printing. This article focuses on manual printing. The main tools used include printing plate, push roll or scraper and brush.

The printing plate needs a large metal frame or plastic frame or a wooden frame to stretch nylon net or polyester wire net. The screen has a flower < /p >.

< p > the veins are lined with polyurethane.

< /p >

When printing P, the color paste is scratched over the mesh and printed on the fur. In order to reduce the cost, it can also be carved into materials with tinplate, zinc plate, plastic board and other materials.

When printing, the printing plate will be covered on the fur, and the brush will be dipped into the color paste and painted on the printing plate to obtain the required < /p > on the fur.

< p > pattern design.

The size of the printing plate depends on the product. Large printing plate is similar to the size of fur pits (120cm*62cm). It can also be used as a printed sheet for rabbit skin.

When the tiger is imitated, we must first dye the bottom color and make a single color pulp. The imitated leopard should also dye the bottom color first. It needs two kinds of /p >.

< p > > a href= "http://www.91se91.com/" > Color pulp < /a >, two block printed board (flower plate, black circle plate), plant pattern flower heart is pink or about color, the leaf is green or black, whether it is center color or outer ring color, its chroma material consists of dye () or paint, paste, auxiliaries, hair retention agent, color agent and fixing agent.

< /p >

< p > 1, < a href= "http://www.91se91.com/" > printing < /a > category < /p >

< p > 1.1 direct printing < /p >

< p > 1.1.1 screen printing < /p >

< p > use low humidity dyes, such as oxidizing dyes, TIPPING DYES and BRUSHING DYES, to print on the wool by double plates or veneers.

< /p >

< p > 1.1.2 engraved plate printing < /p >

< p > overlay the printing plate on the coat or the skin plate, and brush the prepared slurry with a brush on the fur.

< /p >

< p > 1.2 fade printing < /p >

< p > overlay the printing plate on the woolen blanket and prepare the bleaching solution (H2O2, ammonia, wool retaining agent and auxiliaries) and brush it on the wool coat to get the desired pattern.

< /p >

< p > {page_break} < /p >

< p > 1.3 discharge printing < /p >

< p > 1.3.1 was dyed with acid dyes for LOWACENE DYES, LOWACENE ASSIST BH, LEVEL A, formic acid and water. The temperature was 60-65 degrees Celsius, and time 2h. < /p >

< p > 1.3.2 covers the printing plate on the dyed wool coat.

< /p >

< p > BLEACH LCN-1 or LCN-3110g. < /p >

< p > formic acid 400ml Water 500ml < /p >

< p > whitening liquid or spray on the hollowed out board.

< /p >

< p > 1.4 glossy wool leather printing < /p >

< p > in the smooth surface < a href= "http://www.91se91.com/" > Mao Ge < /a > plate, the material liquid (direct dye, metal complex dye, resin, etc.) is printed with brush or spray method.

< /p >

< p > 1.5 rolling printing < /p >

< p > there are uneven patterns (regular or irregular) on the leather surface, such as crocodile pattern, lizard pattern and so on.

< /p >

< p > 1, 6 pfer printing < /p >

< p > first print the paste onto the paper and print it into pfer paper, then press the front side of the pfer paper tightly to the surface, then press it for a certain time at a certain temperature and pressure, so that the flower shape on the paper can be pferred to the surface.

< /p >

< p > 2, dye screening < /p >

< p > selection of printing dyes should generally take into account the following points: < /p >

< p > (1) the color matching property of dyes is < /p >.

When printing P, it is necessary to select dyes with similar properties.

< /p >

< p > (2) leveling performance < /p >

< p > relatively speaking, some dyes have greater affinity on skin fibers, lower diffusion rate and poorer mobility, which will inevitably cause levelling agents to solve leveling problems.

When printing, this problem is not significant, as long as we consider leveling dye.

< /p >

< p > (3) fastness index < /p >

< p > acid dyes, oxidizing dyes, TIPPING DYES and BRUSHING DYES have different printing effect on woolen coating. If acid dyes can not meet their requirements due to temperature and other conditions, the dye can not diffuse inside the inverted fibers, but only adsorbs on the surface of the wool fibers.

< p > index is not at all true, so it is not suitable to use. Oxidation dyes and TIPPING DYES can be combined with wool fibers at low temperature and suitable for fur printing.

< /p >

< p > (4) dye dyeing performance < /p >

< p > dye dye dye can be used to print dark colors. On the contrary, it can only print light colors. The neutral dye has a large component. It combines with the amino acid of the skin fiber. Besides the salt bond, it also relies on hydrogen bonding and Fan Dehua force, so it can be used to print the dark color.

< /p >

< p > above all, it is better to use direct dye or liquid plus Sora dye for < a target= "_blank" href= "http://www.91se91.com/" > leather < /a > printing.

For wool printing, only ammoniated dyes, TPPING DYES and BRUSHING DYES can be used.

< /p >

< p > {page_break} < /p >

< p > 3, thickener screening > /p >

< p > printing paste is closely related to printing effect. The selected paste must meet the following requirements: paste is compatible with dyes and auxiliaries; the dispersity of paste in water is large; water content of paste is small; paste is good for fiber adhesion; paste should be moderately wetted; paste < /p >

< p > easy to wash.

< /p >

In P printing paste, a certain amount of paste should be added. Its function is to pfer dyes, auxiliaries and other chemical materials to the skin to prevent the pattern from seeping.

When the color is fixed, the paste is easy to wash away.

There are many varieties of printing paste, so it is necessary to optimize the paste that can meet the printing process requirements.

In dyeing, < /p >

< p > water is the disperse medium of dyes. In printing, paste becomes the disperse medium of dyes, so the paste is dispersed and aggregated, resulting in uneven printing.

At the same time, the properties of the paste should be considered. It should not react with acids or oxidants.

At present, the commonly used paste is starch and its preparation < /p >

< p > products, gum, sodium alginate, cellulose derivatives, etc.

< /p >

< p > during the experiment, a comparative experiment was conducted on starch, Arabia gum, SX gum and thickener 44.

< /p >

< p > starch granules contain two components, amylose and amylopectin, which are called chain like molecules, and the latter are branched chain molecules. Their basic chains are a glucose in glucose.

However, amylose is not easy to hydrolyze, but can be suspended in water, heated and swellable and becomes less than /p.

< p > viscous suspension.

Amylose is easy to hydrolyze.

When heated and expanded into colloid, viscosity and permeability are not as good as amylopectin.

The contents of amylopectin in different starches varied greatly. The amylopectin content in wheat starch accounted for 15%, and the amylopectin content in potato accounted for 1%-2% < /p >

< p > most of the glutinous rice is amylopectin.

Because of the implicit coordination group at the end of the starch molecule, it has reducibility. When the polymerization degree is high, the reducibility is not obvious.

When the wool is printed with oxidant, such as starch paste, < /p >

< p > after the oxidant is used, such as the use of starch paste, after the oxidant will be used, such as the use of starch paste, will redox reaction, will consume a large number of oxidants, affecting the combination of dyes and fibers, or even pale.

Therefore, it is not advisable to use starch paste < /p > when printing with oxidized dyes.

< p >.

< /p >

< p > thickener 44 has been used as printing paste for oxidizing dyes. The paste does not react with oxidant, and the printing effect is good. However, after printing, the paste is difficult to wash.

This paste can be applied only for washing and labor.

< /p >

< p > test for SX gum, printing effect is good, no reaction with oxidant and dye, paste after printing fixation, easy to wash away, suitable for oxidation dye printing.

< /p >

< p > Arabia gum (peach gum) is used for BRUSHING DYES printing. Its color is uniform, printing effect is excellent, acid is not sticky, and its price is very high.

< /p >

< p > 4, printing step < /p >

< p > 4.1, material selection < /p >

< p > according to the samples and user requirements, choose raw materials that conform to the process and user requirements for imitation.

For example, wolf skin imitation mink, marmot skin imitation mink, from the appearance of the wool to imagine, Rex rabbit skin, sheep shearing leather can imitate leopard flower.

The raw material is selected for printing, and the raw material for rough selection is < /p >.

< p > skin should also be selected for removing fur from needles with hair removal, hair loss, hair loss, burnt hair, tortoise skin, broken boards and rotten plates.

< /p >

< p > {page_break} < /p >

< p > 4.2 raw skin preparation < /p >

< p > 4.2.1 pretreatment < /p >

< p > printing < a href= "http://www.91se91.com/" > fur > /a >, often the color of the wool is different from each other, and the color is related to the fur color to be copied. Therefore, before printing, we need to treat the wool cover, such as bleaching needle or fading.

Formaldehyde is used to treat fur (retanning) before bleaching, so that the skin plate can resist the action of hydrogen peroxide.

< /p >

< p > 4.2.2 dyeing background > /p >

< p > for the white fur or decoloring fur, it needs to be dyed or disseminated into the color similar to the background color of the imitation fur.

< /p >

< p > 4.3 printing is the key process of imitation. The quality of printing determines the imitation effect.

Imitation leopard, the center color is deeper than the background, the outer ring is black, and needs to be covered with plate.

Chemical materials include oxidation dyes, SX glue, penetrant, wool retaining agent MF-3, ammonia and hydrogen peroxide.

Printing < /p >

Before P >, use the brush to turn the wool, first print the center color, then print the outer ring black, and scrape the material evenly, then dry.

< /p >

< p > {page_break} < /p >

< p > 4.4 except pulp > /p >

< p > the wool with deep undercoat is printed. The problem of washing and removing pulp in water is not big. But when the base of the wool is white, the printing of the fur prints should be paid special attention to prevent the pollution of the background.

< /p >

< p > 4.5 turn sawdust (Mu Kang) < /p >.

< p > roll the fur with drum, sawdust and brightener to make the hair loose and bright and remove floating color.

< /p >

< p > 4.6 < a href= "http://www.91se91.com/" > printing > /a > note No. /p >

< p > (1) printing, < a href= "http://www.91se91.com/" > Paste > /a >, add appropriate preservative, otherwise it will sour and deteriorate if placed too long.

< /p >

< p > (2) the mixture should not be too thin, leaving room for adding moderate dye water. That is to say, if the paste is very thin, it will be thinner after adding dye water, and it will not be able to print.

< /p >

< p > (3) when the paste, dye and other materials are all added, if bubbles are generated, defoamer can be added.

< /p >

< p > (4) if two plates need to be colored, two printing plates should be positioned to prevent misplacement of patterns.

After the first printing, it should be dried and then colored to prevent contamination.

< /p >

< p > (5) printing, it is best to manipulate the roll by special person to prevent mistake or uneven force, so as to avoid the inconsistency of the patterns.

< /p >