Introduction Of Main Manufacturing Technology Of Leather

　 Leather cloth Hot drilling technology introduce

Ironing technology refers to the technology of inserting diamonds into leather, cloth and some other materials to make their products more beautiful and beautiful.

In the course of drilling, look at the appearance first.

First, look at the cutting surface of hot drilling. The more the cutting surface, the higher the refractive index, the better the brightness. Secondly, if the cutting surface is uniform, cutting, scratching, and air bubbles are regarded as defective products. The technology of hot drilling is strict, the process is complex, the yield is not very high, and the diamonds with defective rate at 3%-5% should be regarded as good products, and then look at the size of diamonds. The diameter of SS6 is 1.9-2.1mm and SS10 is 2.7-2.9mm... We should also see whether the thickness is consistent.

Second, look at the back glue.

Turn the diamond over to see whether the color of the back glue is uniform or not. The color is bright and uniform, and it is regarded as a good diamond.

Finally look firm.

The higher the solubility of the back glue, the better the firmness of the diamond. The best way to identify diamonds is to wash it well after washing it and wash it without losing it. It proves that the fastness is good. Once it is washed, it will fall off. It proves that the firmness of glue is not good, and a good product can not be dry cleaned.

2. rows of drills first use kraft paper to make various patterns, then arrange the diamonds to the fixed positions on the kraft paper, then stick them out with the sticky paper to make them.

3. hot drilling is mainly used for several kinds of machines, namely: ultrasonic drilling machine, ultrasonic point drill, ultrasonic Nail Drill, heat printer and so on.

　　 Leather embroidery Needle selection

Leather processing is an important field in the processing and application of sewing equipment. In the past, the stitching effect of leather is the main criterion when sewing equipment is used to process leather. With the continuous improvement of people's living standards and sewing
The continuous improvement of machinery manufacturing level and the strong durability of stitches have become a necessary condition. With the changing trend of fashion, good and beautiful stitches also have decorative effect. The stitching effect is the quality of embroidery now.
It is the new evaluation standard that determines the quality of sewing equipment. Leather embroidery is basically straight line stitch. As shown in the figure below, the same straight stitch has produced many different stitching effects.
The needle needles should be selected with the appropriate needle.
Needle punched cloth, especially leather, will leave pinholes, the size and shape of pinholes will have a direct effect on stitch effect. Here is a brief introduction to the stitch effect of different needle shape. 1.r type needle mouth (standard type)
The R type needle mouth is a standard needle mouth. Dbxk5 and dbx1 commonly used in embroidery are all kinds of needle mouths. Their stitches are straight but irregular and unstable, and stitches produce slight pull-up effects. The size of pinholes is irregular.
This type of needle mouth is applied to soft leather and multi directional embroidery. 2.lr type needle mouth (oblique cutter type) this type of needle mouth, from the direction of the track to the right 45 degrees, stab, forming a slight left oblique line.
This type of needle mouth is applied to decorative stitches of medium hardness leather. 3.ll type needle mouth (oblique cutter type)
This type of needle mouth forms a straight stitch from the left side of the track in the direction of 45 degrees. This type of needle mouth is applied to straight line traces for continuous closure.

　 　 Leather embossing mold Basic introduction

Leather embossing die (EDITION) is the key component of the special equipment for leather manufacture, and the special mould for leather surface finishing and embossing. It plays an important role in beautifying leather surface and improving leather grade.

Leather embossing die (EDITION) is mainly in the following categories:

Classification by machine

1, leather embossing rollers, the mould is used on the pass type pressing machine.

2. Leather is used in flat pressing machine.

Two. Classification according to manufacturing materials

1, aluminum magnesium alloy leather embossing board (for short: aluminum version) uses LF3 aviation aluminum magnesium alloy material manufacture.

2, the steel leather embossing plate (short: steel plate) is made of carbon steel plate.

Three. Classification according to manufacturing process

1, aluminum magnesium alloy leather embossing plate (for short: aluminum version)

LF3 aluminum magnesium alloys are usually produced by corrosion.

2. Steel single layer leather embossing board.

The use of medium carbon steel plates is usually produced by corrosion.

3, steel composite leather embossing board (for short: composite version)

The composite plate is patterned on the copper plate by electroforming, and then the copper plate is welded to the steel plate by high temperature and high pressure through the compound machine.