Knowledge Of Leather And Leather Goods

More than 5000 years ago, people began to use leather to protect the wind from the cold, and then to use leather as a noble gift. To Zhou Dai (more than one thousand years ago), people in the long term practice had initially mastered leather making and fur making technology, and formed the primitive tanning industry. In the middle of nineteenth Century, the discovery and application of chrome leather law greatly accelerated the development of leather making industry and gradually made the tannery production go to a scientific orbit. By the early twentieth Century, with the development of various leather chemicals, the leather industry has been developing rapidly. Many countries have gradually formed a larger leather industry system, and the tanning industry has also been pformed from pure manual operation to semi mechanized and mechanized production. Far away

Leather is generally divided into 1. natural leather.

2. synthetic leather.

3. textile materials

1. Synthetic leather is further divided into synthetic foam leather and synthetic leather.

1. Artificial foam leather is mainly made of polyurethane, woolen and polyamino resin. It is made of cloth as raw material. It is characterized by airtight, mainly used for making handbags, belts and so on.

2. The surface of synthetic leather is mainly polyurethane. The base material is non-woven fabric made of synthetic fibers such as polyester, cotton, polypropylene and so on. It has a certain degree of permeability and is characterized by glossy beauty, not easy to mold and moth eaten.

(1)

。

The surface is smooth, through Zhang Houbo, color, intensity and so on. It is better than natural skin in water proofing, acid and alkali resistance and microorganism.

But not high temperature, high cold, easy to aging.

(2)

。

Use plain cloth, canvas, rat cloth, regenerated cloth, knitted fabric and so on to make the base, and then finish with different finishing materials.

Commonly used are:

Artificial leather, PVC foam, etc.

(3) textile materials.

There are canvas, cotton blended fabric, polyvinylon fabric, plain cloth, imitation cashmere and so on.

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The activity of imitation memory fabric promoted the small volume of trading volume in the whole market.

The order quantity of air-jet weaving cotton fabric has increased. From the downstream air jet weaving enterprises, the production and sale rate is 100%, and the specifications of individual varieties are in short supply. Among them, a cotton and cotton toothpick elastic fabric has become a hot market group. It is understood that the material is 70DX (21S+70D) /10S+70D, and its component content is 68% full cotton +28% nylon +4% spandex. According to the 260X98 density specification, the stripper is selected and woven on the air-jet loom, and then processed by many kinds of processes, such as pre shrinking, finalization and dyeing.

The style of the cloth is very bright and full of three-dimensional feeling.

Its unique appearance is fresh and refined, quality is impeccable, elastic function, comfortable and comfortable to wear, and has won the love of consumers.

Its width is 57 inches, and its weight is 275 (g/m2). The wholesale price is about 16 yuan per metre.

It can not only be used as a casual dress and skirt for women, but also an ideal fabric for making trousers.

The upper body is elegant, charming, simple and free.

Warp knitted fabrics such as short plush, no velvet, flannel, and some warp knitted "golden velvet" sales fell.

The sales of conventional water fleece fabrics are not good enough. Among them, the sales of the washable flours are again showing a trend of shrinkage. Although the sales of peach skin fabrics have always been the top of the fabric, the market of the products is large and the price is fierce.

The recent sales volume of coated fabrics has been slightly increased, mainly due to the popularity of the waterproof coating fabrics of "filament Oxford cloth". The products are mainly sold to the rain cape produced by the town of "Yu Po Po" in Lijia town of Changzhou, Jiangsu. It is understood that there are more than 600 enterprises in the town with rain cape processing, and the annual production of rain cape accounts for nearly half of the total output of the national rain cape.

It is expected that fabric prices will be stable next week, but the volume of down fabric will likely continue to rise slightly.