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Sewing-free hot melt adhesive TPU leather and preparation method thereof

A hot-melt adhesive and sewing-free technology, which is applied in textiles and papermaking, can solve problems such as increased consumption costs, unsafe use, and toxicity

Active Publication Date: 2017-06-13
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method not only has high labor intensity and high production cost, but also has problems such as easy breakage, tearing and peeling at the seam of the product under the action of external force, which seriously affects the service life and quality of the product, and the consumption cost is also significantly increased.
Also because most of the current product fabrics are made of PVC leather, and the PVC material itself contains toxic elements such as polyvinyl chloride and ethylhexylamine, which is carcinogenic to the human body and is extremely unsafe to use. Most of the adhesives used in the pasting are industrial liquid glue, solid glue and PU glue. And other performance aspects have certain defects, which belong to unsatisfactory environmental protection adhesive materials.

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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  • Sewing-free hot melt adhesive TPU leather and preparation method thereof
  • Sewing-free hot melt adhesive TPU leather and preparation method thereof
  • Sewing-free hot melt adhesive TPU leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A kind of sewing-free hot-melt adhesive TPU leather, the said sewing-free hot-melt adhesive TPU leather comprises one layer of PU film, one layer of TPU hot-melt adhesive film and release paper or Release film, the TPU hot melt adhesive film is arranged on one side of the PU film; the thickness of the TPU hot melt adhesive film is 0.01mm; the thickness of the PU film is 0.01mm; the release paper or release The thickness of the film is 0.01mm;

[0074] The material of the release paper or release film is selected from any one or a combination of at least two of PVC, EVA, PP or PE;

[0075] Described TPU hot-melt adhesive film comprises following raw material component by weight part:

[0076] 30 parts of polyester polyols; 35 parts of polyether polyols; 20 parts of diisocyanates; 0.5 parts of catalysts; 0.5 parts of chain extenders; The hydroxyl-terminated polyester diol with a weight-average molecular weight of 500-800 obtained by polycondensation reaction at ~200°C; ...

Embodiment 1

[0085] A kind of sewing-free hot-melt adhesive TPU leather, the said sewing-free hot-melt adhesive TPU leather comprises one layer of PU film, one layer of TPU hot-melt adhesive film and release paper or Release film, the TPU hot melt adhesive film is arranged on one side of the PU film; the thickness of the TPU hot melt adhesive film is 0.3mm; the thickness of the PU film is 3.0mm; the release paper or release The thickness of the film is 1.0mm;

[0086] The material of the release paper or release film is selected from any one or a combination of at least two of PVC, EVA, PP or PE;

[0087] Described TPU hot-melt adhesive film comprises following raw material component by weight part:

[0088] 40 parts of polyester polyol; 45 parts of polyether polyol; 50 parts of diisocyanate; 2 parts of catalyst; 10 parts of chain extender; 1 part of antioxidant; 4 parts of flame retardant; 4 parts of toughening agent; The polyol is a hydroxyl-terminated polyester diol with a weight-aver...

Embodiment 1

[0099] A kind of sewing-free hot-melt adhesive TPU leather, the said sewing-free hot-melt adhesive TPU leather comprises one layer of PU film, one layer of TPU hot-melt adhesive film and release paper or Release film, the TPU hot melt adhesive film is arranged on one side of the PU film; the thickness of the TPU hot melt adhesive film is 0.2mm; the thickness of the PU film is 1.0mm; the release paper or release The thickness of the film is 0.5mm;

[0100] The material of the release paper or release film is selected from any one or a combination of at least two of PVC, EVA, PP or PE;

[0101] Described TPU hot-melt adhesive film comprises following raw material component by weight part:

[0102] 32 parts of polyester polyol; 38 parts of polyether polyol; 20-50 parts of diisocyanate; 1 part of catalyst; 2 parts of chain extender; 0.5 part of antioxidant; 2 parts of flame retardant; 1.5 parts of toughening agent; The polyester polyol is a hydroxyl-terminated polyester diol wit...

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Abstract

The invention provides a sewing-free hot melt adhesive TPU leather and a preparation method thereof, wherein the sewing-free hot melt adhesive TPU leather comprises at least one layer PU film, at least one layer TPU hot melt adhesive film and optionally release paper or a release film matched with the TPU hot melt adhesive film, and the TPU hot melt adhesive film is arranged on one side of the PU film. The adhesive strength of the sewing-free hot melt adhesive TPU film is greatly improved; through the use of the specific PU film and TPU film and an EVA foam film, the comprehensive physical properties of the sewing-free hot melt adhesive TPU film can be further improved, PVC and PU artificial leather can be completely replaced, the sewing-free hot melt adhesive TPU leather may not deteriorate at a high temperature of 150 DEG C, and has wear resistance, heat resistance and flex resistance.

Description

technical field [0001] The invention belongs to the technical field of leather and relates to a sewing-free hot-melt adhesive TPU leather and a preparation method thereof. Background technique [0002] In the production industries of garments, shoes, bags, handbags, seats, and military products at home and abroad, the fabrics attached to all products are spliced ​​by traditional stitching methods. This production method not only has high labor intensity and high production cost, but also has problems such as easy fracture, tearing and peeling at the seam of the product under the action of external force, which seriously affects the service life and quality of the product, and the consumption cost is also significantly increased. Also because most of the current product fabrics are made of PVC leather, and the PVC material itself contains toxic elements such as polyvinyl chloride and ethylhexylamine, which is carcinogenic to the human body and is extremely unsafe to use. Mos...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/0059D06N3/0097D06N3/144D06N3/145D06N2211/28
Inventor 何建雄王一良杨博
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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