A kind of high adhesion airtight type TPU coated fabric and preparation method thereof

A fabric-coated, high-adhesion technology, applied in chemical instruments and methods, lamination, layered products, etc., can solve problems such as low tensile strength, inability to meet the processing requirements of new inflatable products, and poor flex resistance. Achieve stable performance, unique performance advantages, and simple process technology.

Active Publication Date: 2011-12-21
CTA HI TECH TEXTILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional rubber-coated fabrics and PVC-coated fabrics cannot meet the processing requirements of these new inflatable products due to their poor flex

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 210D high-strength silk nylon Oxford cloth is impregnated with solvent-based polyurethane adhesive, and the amount of impregnation is 20g / m 2 , the production line speed is 20m / min, the drying temperature is 120-130-130°C, and it is cooled after drying. Then it is transported to the extrusion casting production line for TPU casting coating. The casting coating process conditions are: infrared pre-baking temperature is 120 ° C, extrusion melt temperature is 190 ° C, cooling roll temperature is 50 ° C, production line speed is 25m / min, extrusion cast coating weight 100g / m 2 , after extrusion coating, it is cooled and shaped to form a total weight of about 220g / m 2 High adhesion TPU coated fabric.

[0009] The adhesive is a one-liquid-and-a-half type with a solid content of 15%, the ratio of the solvent is DMF:TOL:MEK=1:3:3, the ratio of the curing agent to the main glue is 1:20, the accelerator and the curing The ratio of the agent is 1:10.

[0010] The TPU is a hydro...

Embodiment 2

[0013] 420D high-strength silk nylon Oxford cloth is impregnated with solvent-based polyurethane adhesive, and the amount of impregnation is 30g / m 2 , the production line speed is 20m / min, the drying temperature is 120-130°C, and cool after drying. Then it is transported to the extrusion casting production line for TPU casting coating. The casting coating process conditions are: infrared pre-baking temperature is 120 ° C, extrusion melt temperature is 190 ° C, cooling roll temperature is 50 ° C, production line speed is 25m / min, extrusion cast coating weight is 300g / m 2 , after extrusion coating, it is cooled and shaped to form a total weight of about 460g / m 2 High adhesion TPU coated fabric. When double-sided TPU-coated fabric is required, coat the fabric side of the single-sided TPU-coated fabric made above with 300g / m 2 TPU, forming a total weight of about 700g / m 2 High adhesion double-sided TPU coated fabric

[0014] The adhesive is a one-liquid-and-a-half type with a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a high-adhesion airtight TPU (thermoplastic polyurethanes) coated fabric and a preparation method thereof. The fabric is formed by a fabric layer (1) and a TPU film layer (2), wherein the fabric layer (1) comprises an external adhesive coating layer; the fabric layer (1) and the TPU film layer (2) are securely connected by a high-adhesion adhesive layer; and the fabric layer (1) is a woven fabric made of polyester fibers or polyamide fibers or can be an aramid fabric. The preparation method is characterized by coating the fabric substrate by adopting the extrusion casting and coating mode after the fabric substrate is treated by an adhesive impregnation process to form the high-adhesion TPU coated fabric required by the claims. The fabric and the preparation method have the following beneficial effects: the prepared TPU coated fabric has higher adhesion, more stable properties and simpler process and simultaneously has certain thermoplasticity, can facilitate production and processing of the products, can be applied to such inflatable products as inflatable materials of massage chairs, inflatable materials of inflatable life jackets, diving buoyancy air bags and the like and shows unique property advantages.

Description

technical field [0001] The invention belongs to the field of manufacturing rubber or plastic coated fabrics, in particular to a high-adhesion airtight TPU coated fabric and a preparation method thereof. Background technique [0002] The bonding treatment of the prior art technology adopts the method of adhesive coating, and the adhesion of the TPU coated fabric produced is not as good as that of the present invention, and when the fabric needs to be protected and an additional bonding layer is required, an additional coating is required craft. Traditional rubber-coated fabrics and PVC-coated fabrics cannot meet the processing requirements of these new inflatable products due to their poor flex resistance and low tensile strength, or the high-efficiency method of high-frequency welding that cannot be used in the production of inflatable products. Contents of the invention [0003] According to the above technical problems, the present invention proposes a high adhesion TPU...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B32B33/00B32B27/12B32B27/40B32B7/12B32B37/10B32B37/12B32B38/08B32B38/18
Inventor 李鹏曹明华胡国银
Owner CTA HI TECH TEXTILES
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