Chapter 1 Introduction to Synthetic Leather
1. 1 Classification of artificial leatherAt present,there is no unanimous rule about the classification of artificial leather andsynthetic leather. Generally speaking,in the manufacturing process of artificial leather,thewoven fabrics in which the warp an...查看详细>>
标签:合成革专业英语Lesson 1 Introduction
Coating,bonding and sealing are techniques that humankind has used for many thousands ofyears. For a long time,only natural resins,oils and fats were used for these purposes.Shellac,a natural resin secreted by the scaly lac insect,has been used in India f...查看详细>>
标签:合成革专业英语Lesson 2 Chemical principles and raw materials
2.2.1 IsocyanatesAs a rule,isocyanates are obtained by the phosgenation of the corresponding primary amines(Fig.2-1).Fig. 2-1 Manufacture of isocyanates by phosgenation of primary aminesAlternatively,phosgene - free manufacturing processes have been devel...查看详细>>
标签:合成革专业英语Lesson 3 Waterborne polyurethane
The application viscosity of solutions of polyurethanes in organic solvents required fortechnical reasons imposes a restriction in terms of the molecular weight. By contrast,polyurethane/urea dispersions can be produced in the heterogeneous phase with alm...查看详细>>
标签:合成革专业英语Lesson 4 Applications of polyurethane
2.4.1 Polyurethane adhesives2.4.1.1 Properties of polyurethane adhesivesPolyurethane adhesives adhere well to many substrates. This is not solely due to physicalbonding forces arising from the close contact between the adhesive film and the substrate surf...查看详细>>
标签:合成革专业英语Lesson 1 Introduction to nonwoven fabrics
3.1.1 Definition of nonwoven fabricsThe nonwoven fabric is a kind of fiber products and its processing technology of nonwovenfabric is a new technology for the textile industry. The nonwoven fabric industry is a newlydeveloping field involving in a wide r...查看详细>>
标签:合成革专业英语Lesson 2 Synthetic fibers used in nonwoven fabrics for Synthetic leather
Fibers are mainly used to manufacture nonwoven fabrics which constitute the backbone ofleather. Conventional chemical fibers include polyester and nylon fibers. The main reason is theyhave excellent flexibility,abrasion resistance,fatigue resistance and s...查看详细>>
标签:合成革专业英语Lesson 3 The technics of nonwovens fabrics
3.3.1 Preparation for web forming3.3.1.1 Procedures before web formingThe fibers with certain length and linear density can be formed web by carding. But in orderto achieve favorable carding effect,the raw materials must be treated by a series of processi...查看详细>>
标签:合成革专业英语Lesson 4 The finishing of nonwoven fabrics
The purpose of finishing is to improve the character of service of nonwoven fabrics. Generallytwo finishing ways are carried out before using nonwovens used for synthetic leather which arePVA sizing method and ironing method.3.4.1 PVA sizing3.4.1.1 The pu...查看详细>>
标签:合成革专业英语Lesson 1 Introduction to processing of base
4.1.1 The definition and classification of baseThe name is derived from English BASE,which means the substrate,base fabric and semifinished products. The synthetic leather base usually refers to fiber-resin composite which isformed by the impregnating or ...查看详细>>
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