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Thermal composite light polyurethane film and preparation method thereof

A polyurethane film and polyurethane technology, applied in chemical instruments and methods, lamination devices, lamination, etc., can solve the problems of inability to retain coating resins, etc.

Inactive Publication Date: 2013-03-13
QUANZHOU WANHUA SEWANG MICRO FIBER CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] As is known, synthetic leather is composed of base material and coating resin, such as polyurethane wet coating or polyurethane dry surface making on the base material, and the combination of base material and coating resin is carried out The production process of synthetic leather is completed, so the choice of base material has certain limitations, and the base material cannot be replaced according to the needs without retaining the coating resin. Synthetic leather has a wide range of applications in the fields of clothing fabrics, shoe materials, leather bags, etc. Applications, such as providing a coating resin film that can be thermally laminated with various substrates during use to achieve seamless connection, can greatly reduce the labor and time costs due to sewing operations, while the current market There is no coating resin film that is selectively compounded with various substrates during use

Method used

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  • Thermal composite light polyurethane film and preparation method thereof

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Embodiment Construction

[0019] refer to figure 1 As shown, a heat-compositable lightweight polyurethane film includes a hot-melt adhesive layer 1, a wet-process polyurethane layer 2 and a dry-process polyurethane veneer layer 3, which are sequentially composited from bottom to top. The melting temperature of the hot-melt adhesive layer 1 is Lower than the melting temperature of wet-process polyurethane layer 2 and dry-process polyurethane facing layer 3.

[0020] The hot-melt adhesive layer 1 is thermoplastic polyurethane with a melting temperature of 120°C. The thickness of the hot-melt adhesive layer 1 is 0.15mm, the thickness of the wet-process polyurethane layer 2 is 0.3mm, and the thickness of the dry-process polyurethane veneer layer 3 is 0.1mm.

[0021] A preparation method for thermally composite lightweight polyurethane film, comprising the steps of:

[0022] (1) The wet process is used to coat the wet process polyurethane layer on the Oxford cloth. The formula of the wet process polyuretha...

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Abstract

The invention provides a thermal composite light polyurethane film which comprises a hot melt adhesive layer, a wet-process polyurethane layer and a dry-process polyurethane cover layer which are composited in sequence from bottom to top. The melting temperature of the hot melt adhesive layer is lower than that of the wet-process polyurethane layer and the dry-process polyurethane cover layer. The polyurethane film provided by the invention can be composited with various substrates by hot press welding, and has the advantages of simple structure, convenience in use, flexible application, light weight, high softness, easiness for processing and the like.

Description

technical field [0001] The invention relates to a polyurethane film and a preparation method thereof. Background technique [0002] As is known, synthetic leather is composed of base material and coating resin, such as polyurethane wet coating or polyurethane dry surface making on the base material, and the combination of base material and coating resin is carried out The production process of synthetic leather is completed, so the choice of base material has certain limitations, and the base material cannot be replaced according to the needs without retaining the coating resin. Synthetic leather has a wide range of applications in the fields of clothing fabrics, shoe materials, leather bags, etc. Applications, such as providing a coating resin film that can be thermally laminated with various substrates during use to achieve seamless connection, can greatly reduce the labor and time costs due to sewing operations, while the current market There is no coating resin film tha...

Claims

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Application Information

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IPC IPC(8): B32B7/12B32B27/40B32B37/02
Inventor 颜俊蔡鲁江李革吴发庆李杰其他发明人请求不公开姓名
Owner QUANZHOU WANHUA SEWANG MICRO FIBER CO LTD
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