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History of Leather-Does Everyone Know?

History of Leather-Does Everyone Know?

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-02-17
  • Views:1

(Summary description)One: History of Leather

More than 5,000 years ago, people first used leather to protect themselves from the wind and cold, and then used leather as a noble gift. By the Zhou Dynasty (more than 1,000 BC), people had initially mastered tanning in long-term practice. The tanning technology formed the original tanning industry. In the mid-nineteenth century, the discovery and application of the chrome leather softening method greatly accelerated the development of the tanning industry, and gradually led the tanning production to a scientific track. At the beginning of the century, with the successful development of various tanning chemicals, the tanning industry has developed rapidly. Many countries have gradually formed larger tanning industry systems, and the tanning industry has also transitioned from the original pure manual operation to Semi-mechanized and mechanized production.

Daqin Leather believes that quality is the foundation of an enterprise, and integrity is the basis of survival!
Daqin Leather has been talking with facts, good products and good services!

       

 Two: Leather classification and processing technology:

(Brief description 1. natural leather. 2. synthetic leather. 3. textile materials)

Leather is generally divided from texture: 1. Natural leather. 2. Synthetic leather. 3. Textile materials

1. Artificial leather is divided into artificial foam leather and synthetic leather.

①, artificial foam leather is mainly made of polyurethane, woolen cloth, polyurethane and other resins as coatings and cloth as the base material. It is characterized by air tightness and is mainly used in the manufacture of handbags and belts

② The surface of synthetic leather is mainly polyurethane, and the base material is non-woven fabric made of polyester, cotton, polypropylene and other synthetic fibers.

(1) Synthetic leather.

The surface is smooth, the thickness is wide, and the color and strength are uniform. It is superior to natural leather in water resistance, acid and alkali resistance, and microorganisms. But it is not resistant to high temperature, high cold, and easy to age.

(2) Artificial leather.

It is made of plain cloth, canvas, rat-weave cloth, recycled cloth, fiber knitted cloth, etc., and then finished with different finishing materials.

Commonly used: PVC artificial leather, PVC foam leather, etc.

(3) Textile materials.

There are fine canvas, cotton-vinyl blend fabric, vinylon cloth, plain weave, imitation cashmere, etc.

2. Animal leather is a kind of natural leather, that is, the dermis that we often say. It is a fixed and durable substance transformed by animals (raw hides) through a series of physical and chemical processing. It has the properties of softness, toughness, resistance to deformation when exposed to water, dryness and shrink resistance, heat and humidity resistance, chemical resistance, etc. It has special advantages such as good air permeability and anti-aging.

        The processing of animal leather is very complicated, and it takes dozens of steps to make finished leather: raw leather ---- soaked in water ---- demeated ---- degreased ---- dehaired ---- soaked in alkali-- -Expansion ---- deliming ---- softening ---- acid picking ---- tanning ---- slicing ---- shaving ---- retanning ---- neutralization-- -Dyeing and refueling-filling-drying-finishing-finishing-finished leather.

        There are also many types of animal leather. According to the materials, it is generally divided into sheep leather, cow leather, horse leather, snake leather, pig leather and crocodile leather. According to performance, it can be divided into two-layer leather, full-grain leather, and suede. , Modified leather, film leather, compound leather, decorative split leather, etc.

        Two-layer leather refers to the crushed leather is pressed by chemical and physical methods in leather processing. This type of leather is relatively hard, easily broken, and not sufficiently stretched.

        Full grain leather: refers to the leather that retains and uses the original surface (growth or scale side) of animal skin, called front leather. Full-grain surfaces are rarely used without finishing, and most of them are beautified and painted, such as embossing. The raw materials used for full-grain leather require high-grade raw materials with disability and processing requirements, which are high-grade. Leather, and the surface of the leather remains intact in the leather and leather, its fastness is good, the surface of the full-grain leather is not painted or painted and is very thin, maintaining the softness and elasticity of the leather and good air permeability, and its finished products Comfortable, durable and beautiful.

        Suede: refers to the leather with a fleece surface, which is made by grinding the front side of the leather (the side that grows hair or scales), and is called nubuck. The two-layer suede leather is called two-layer velvet. Because suede has no coating

History of Leather-Does Everyone Know?

(Summary description)One: History of Leather

More than 5,000 years ago, people first used leather to protect themselves from the wind and cold, and then used leather as a noble gift. By the Zhou Dynasty (more than 1,000 BC), people had initially mastered tanning in long-term practice. The tanning technology formed the original tanning industry. In the mid-nineteenth century, the discovery and application of the chrome leather softening method greatly accelerated the development of the tanning industry, and gradually led the tanning production to a scientific track. At the beginning of the century, with the successful development of various tanning chemicals, the tanning industry has developed rapidly. Many countries have gradually formed larger tanning industry systems, and the tanning industry has also transitioned from the original pure manual operation to Semi-mechanized and mechanized production.

Daqin Leather believes that quality is the foundation of an enterprise, and integrity is the basis of survival!
Daqin Leather has been talking with facts, good products and good services!

       

 Two: Leather classification and processing technology:

(Brief description 1. natural leather. 2. synthetic leather. 3. textile materials)

Leather is generally divided from texture: 1. Natural leather. 2. Synthetic leather. 3. Textile materials

1. Artificial leather is divided into artificial foam leather and synthetic leather.

①, artificial foam leather is mainly made of polyurethane, woolen cloth, polyurethane and other resins as coatings and cloth as the base material. It is characterized by air tightness and is mainly used in the manufacture of handbags and belts

② The surface of synthetic leather is mainly polyurethane, and the base material is non-woven fabric made of polyester, cotton, polypropylene and other synthetic fibers.

(1) Synthetic leather.

The surface is smooth, the thickness is wide, and the color and strength are uniform. It is superior to natural leather in water resistance, acid and alkali resistance, and microorganisms. But it is not resistant to high temperature, high cold, and easy to age.

(2) Artificial leather.

It is made of plain cloth, canvas, rat-weave cloth, recycled cloth, fiber knitted cloth, etc., and then finished with different finishing materials.

Commonly used: PVC artificial leather, PVC foam leather, etc.

(3) Textile materials.

There are fine canvas, cotton-vinyl blend fabric, vinylon cloth, plain weave, imitation cashmere, etc.

2. Animal leather is a kind of natural leather, that is, the dermis that we often say. It is a fixed and durable substance transformed by animals (raw hides) through a series of physical and chemical processing. It has the properties of softness, toughness, resistance to deformation when exposed to water, dryness and shrink resistance, heat and humidity resistance, chemical resistance, etc. It has special advantages such as good air permeability and anti-aging.

        The processing of animal leather is very complicated, and it takes dozens of steps to make finished leather: raw leather ---- soaked in water ---- demeated ---- degreased ---- dehaired ---- soaked in alkali-- -Expansion ---- deliming ---- softening ---- acid picking ---- tanning ---- slicing ---- shaving ---- retanning ---- neutralization-- -Dyeing and refueling-filling-drying-finishing-finishing-finished leather.

        There are also many types of animal leather. According to the materials, it is generally divided into sheep leather, cow leather, horse leather, snake leather, pig leather and crocodile leather. According to performance, it can be divided into two-layer leather, full-grain leather, and suede. , Modified leather, film leather, compound leather, decorative split leather, etc.

        Two-layer leather refers to the crushed leather is pressed by chemical and physical methods in leather processing. This type of leather is relatively hard, easily broken, and not sufficiently stretched.

        Full grain leather: refers to the leather that retains and uses the original surface (growth or scale side) of animal skin, called front leather. Full-grain surfaces are rarely used without finishing, and most of them are beautified and painted, such as embossing. The raw materials used for full-grain leather require high-grade raw materials with disability and processing requirements, which are high-grade. Leather, and the surface of the leather remains intact in the leather and leather, its fastness is good, the surface of the full-grain leather is not painted or painted and is very thin, maintaining the softness and elasticity of the leather and good air permeability, and its finished products Comfortable, durable and beautiful.

        Suede: refers to the leather with a fleece surface, which is made by grinding the front side of the leather (the side that grows hair or scales), and is called nubuck. The two-layer suede leather is called two-layer velvet. Because suede has no coating

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-02-17
  • Views:1
Information

DQ

 

One: History of Leather
 
More than 5,000 years ago, people first used leather to protect themselves from the wind and cold, and then used leather as a noble gift. By the Zhou Dynasty (more than 1,000 BC), people had initially mastered tanning in long-term practice. The tanning technology formed the original tanning industry. In the mid-nineteenth century, the discovery and application of the chrome leather softening method greatly accelerated the development of the tanning industry, and gradually led the tanning production to a scientific track. At the beginning of the century, with the successful development of various tanning chemicals, the tanning industry has developed rapidly. Many countries have gradually formed larger tanning industry systems, and the tanning industry has also transitioned from the original pure manual operation to Semi-mechanized and mechanized production.
 
Daqin Leather believes that quality is the foundation of an enterprise, and integrity is the basis of survival!
Daqin Leather has been talking with facts, good products and good services!
 
       
 
 Two: Leather classification and processing technology:
 
(Brief description 1. natural leather. 2. synthetic leather. 3. textile materials)
 
Leather is generally divided from texture: 1. Natural leather. 2. Synthetic leather. 3. Textile materials
 
1. Artificial leather is divided into artificial foam leather and synthetic leather.
 
①, artificial foam leather is mainly made of polyurethane, woolen cloth, polyurethane and other resins as coatings and cloth as the base material. It is characterized by air tightness and is mainly used in the manufacture of handbags and belts
 
② The surface of synthetic leather is mainly polyurethane, and the base material is non-woven fabric made of polyester, cotton, polypropylene and other synthetic fibers.
 
(1) Synthetic leather.
 
The surface is smooth, the thickness is wide, and the color and strength are uniform. It is superior to natural leather in water resistance, acid and alkali resistance, and microorganisms. But it is not resistant to high temperature, high cold, and easy to age.
 
(2) Artificial leather.
 
It is made of plain cloth, canvas, rat-weave cloth, recycled cloth, fiber knitted cloth, etc., and then finished with different finishing materials.
 
Commonly used: PVC artificial leather, PVC foam leather, etc.
 
(3) Textile materials.
 
There are fine canvas, cotton-vinyl blend fabric, vinylon cloth, plain weave, imitation cashmere, etc.
 
2. Animal leather is a kind of natural leather, that is, the dermis that we often say. It is a fixed and durable substance transformed by animals (raw hides) through a series of physical and chemical processing. It has the properties of softness, toughness, resistance to deformation when exposed to water, dryness and shrink resistance, heat and humidity resistance, chemical resistance, etc. It has special advantages such as good air permeability and anti-aging.
 
        The processing of animal leather is very complicated, and it takes dozens of steps to make finished leather: raw leather ---- soaked in water ---- demeated ---- degreased ---- dehaired ---- soaked in alkali-- -Expansion ---- deliming ---- softening ---- acid picking ---- tanning ---- slicing ---- shaving ---- retanning ---- neutralization-- -Dyeing and refueling-filling-drying-finishing-finishing-finished leather.
 
        There are also many types of animal leather. According to the materials, it is generally divided into sheep leather, cow leather, horse leather, snake leather, pig leather and crocodile leather. According to performance, it can be divided into two-layer leather, full-grain leather, and suede. , Modified leather, film leather, compound leather, decorative split leather, etc.
 
        Two-layer leather refers to the crushed leather is pressed by chemical and physical methods in leather processing. This type of leather is relatively hard, easily broken, and not sufficiently stretched.
 
        Full grain leather: refers to the leather that retains and uses the original surface (growth or scale side) of animal skin, called front leather. Full-grain surfaces are rarely used without finishing, and most of them are beautified and painted, such as embossing. The raw materials used for full-grain leather require high-grade raw materials with disability and processing requirements, which are high-grade. Leather, and the surface of the leather remains intact in the leather and leather, its fastness is good, the surface of the full-grain leather is not painted or painted and is very thin, maintaining the softness and elasticity of the leather and good air permeability, and its finished products Comfortable, durable and beautiful.
 
        Suede: refers to the leather with a fleece surface, which is made by grinding the front side of the leather (the side that grows hair or scales), and is called nubuck. The two-layer suede leather is called two-layer velvet. Because suede has no coating layer, its breathability is better and its flexibility is improved. However, its water resistance, dust resistance and maintainability are poor, and it has no grain. The fastness of the plush leather becomes low. Suede leather products are comfortable to wear and have good hygienic properties. However, in addition to suede leather made by oil tanning, suede leather is easy to dirty and difficult to clean and maintain. It is mainly used for making leather shoes, leather clothing, bags and gloves.
 
      Modified leather: refers to the leather that is partially or completely removed from the original surface of the animal skin, and then coated with artificial film. It has a top layer of modified leather and a second layer of modified leather. The surface film is mostly made of various chemical materials. The coating liquid is made by painting and pressing certain patterns several times. Some coating leathers are made by transferring pre-made chemical films to the leather surface, also called film leather or film leather. The modified leather is mainly used to make up the surface of the material. Insufficient, its air permeability is poor, fastness is low, folding resistance and aging resistance are reduced, wearing is not as comfortable as full-grain leather, but its water resistance is good, easy to clean and maintain.
 
        Compound leather refers to a layer of rubber film on the split leather, which has good chemical resistance and durability, and is suitable for footwear.
 
        Coating split leather is a layer of colored resin on the split leather
 
Daqin Leather believes that quality is the foundation of an enterprise, and integrity is the basis of survival!
Daqin Leather has been talking with facts, good products and good services!

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Add: Daqin leather factory, Xiajie Industrial Area, Qishi Twon, Dongguan City, Guangdong Province, P.R.China

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