Leather Mechanization Will Promote Leather Technology Greatly Improved.

< p > < a href= "http://www.91se91.com" > leather printing equipment < /a > /p >

< p > leather comes from animals, which determines the irregularity of leather.

In addition, the price of leather is too high to waste, so it is decided that leather printing equipment can not copy the textile printing equipment.

At present, the printing equipment in leather industry is divided into direct printing equipment, pfer printing equipment and some auxiliary equipment.

Direct printing equipment: the first choice, of course, is manual lifting. It has the advantages of fast changing pattern, wide adaptability and convenient color register.

However, the biggest problem of hand lifting plates used for leather printing is the large amount of waste caused by irregularity of leather. The professional term is called paste edge, and the scissors are used to repair them. Therefore, manual lifting boards do not use much in leather printing.

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< p > > a href= "http://www.91se91.com" > Leather > /a > printing is the most common roller printing machine. The special roller printing machine developed by South Korea has excellent printing effect. It can print any fine pattern, and the utilization rate of leather can be maximized without any waste.

In addition, there are also plastic dropping machines and embossing machines.

Transfer printing equipment: pfer printing requires a printing machine and heat pfer printing machine. At present, film is used instead of paper in foreign countries, so a film printer can also be used.

The heat pfer printing machine is different from the textile. It requires high pressure and normal working pressure is 20~30kg/cm2, generally using oil pressure.

The temperature requirement is not high, the highest is 120 degrees, and the ordinary 80 degrees is enough.

Auxiliary equipment: auxiliary equipment is the key equipment of leather printing plant. It is related to product category and market share.

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< p > < a href= "http://www.91se91.com > > leather printing > /a > process > /p >

< p > first, dye printing, of course. The biggest advantage of dye printing is that the handle is not affected.

However, leather can not be steamed at high temperature, so the technology can not copy the textiles.

There is a series of dyes in foreign countries, mainly 1:2 metal complexing dyes. It is not used to steamer and dry. But the price of this kind of dye is high, the force is only 30 to 50 of the ordinary dye, and it is very troublesome to touch the dark color.

A series of dyes were selected from textile printing dyestuffs. Their fastness is the same as that of imported ones. They are brightly coloured and have high strength. They only have a slight fastness to light fastness. They can be dried on the leather and can not be steamed or washed.

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< p > followed by pigment printing, which is the largest type of printing in leather printing.

Because pigment printing can express gold and silver, with hot film, the product is more and more varied, which can maximize the expression of leather noble, gorgeous features.

Wear resistant electrode.

Transfer printing: pfer printing is the most suitable printing method for leather. It is divided into two ways: dry process and wet process.

Dry pfer is mostly made of hot sol, which is printed on the release paper or BOPP film and pferred to leather under hot pressing condition.

Wet pfer is to spray a special liquid on the leather.

Then the dye on the pfer paper is dissolved by hot pressing and then fixed on the leather.

Leather pfer printing is the most high-grade printing method on leather. The fineness and visual effect of flower pattern are not comparable with other methods.

At present, there are factories abroad specializing in the production of such pfer paper, the price is 40~50 yuan / M.

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