Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.
Sewing-free hot melt adhesive TPU-PU leather and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A hot-melt adhesive and sewing-free technology, which is applied in the direction of chemical instruments and methods, adhesives, adhesive types, etc., can solve the problems of unsatisfactory environmental protection adhesive materials, easy breakage at seams, and high production costs
Active Publication Date: 2015-01-14
DONGGUAN XIONGLIN NEW MATERIAL TECH
View PDF7 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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 glue used in the pasting is industrial liquid glue and solid glue. Most of these melt glue materials are toxic, and they have good properties such as elasticity, acid resistance, alkali resistance, washing resistance, dry cleaning resistance, tension resistance, and adhesion. It has certain defects and is not an ideal environmental protection adhesive material.
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
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0106] A preferred embodiment of the present invention is given below.
[0107] The sewing-free hot-melt adhesive TPU-PU leather of the present invention is prepared in the following manner.
[0108] 1. Preparation of release paper S1
[0109] Select the paper bottom layer A1, and on the paper bottom layer A1, coat a water-based polypropylene (PP) adhesive layer A2 with a thickness of 2.5 microns, and then stick a polyterephthalene with a thickness of 20 microns on the adhesive layer A2 Ethylene glycol formate film A3 and cured for a certain time. Then prepare the transition layer coating according to 65 parts by weight of inorganic particles, 35 parts by weight of silicon-acrylic emulsion, 4 parts by weight of sodium fatty acid methyl ester sulfonate, 3 parts by weight of dodecyl dimethyl benzyl ammonium chloride and 50 parts by weight of water Liquid, and uniformly coated on the polyethylene terephthalate film A3 with a doctor blade, and cured and calendered to form a tran...
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
Login to View More
PUM
Property
Measurement
Unit
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
Login to View More
Abstract
The present invention provides a novel sewing-free hot melt adhesive TPU-PU leather and a preparation method thereof. The hot melt adhesive TPU-PU leather comprises a release paper, a hot melt adhesive film, a TPU film, and a dry PU film. The release paper comprises a bottom paper layer, an adhesive layer, a plastic layer, a transition layer, and a release layer; a hot melt adhesive raw material comprises polyester polyol, diisocyanate, polyether polyol, and a plurality of additives; a TPU raw material comprises polymer polybasic alcohol, 1,4-cyclohexane-diisocyanate, a chain extender, and a plurality of functional additives; and a PU raw material comprises polyester glycol, straight-chain diol, isocyanate, TDI Tripolymer, dimethylformamide, butanone, black sand, and a plurality of functional additives. According to the present invention, innovations are conducted on raw material components of the release paper, the hot melt adhesive, the TPU film, and the PU film; and the prepared sewing-free TPU-PU leather has the technical advantages of firm adhesion, durability, environmentally-friendly materials, no invisible harm to human body, and the like.
Description
technical field [0001] The invention relates to the technical field of leather materials, in particular to a sewing-free hot-melt adhesive TPU-PU leather and a preparation method thereof. Background technique [0002] In the prior art, in the production industries of garments, shoes, bags, handbags, seats, military industry, etc. at home and abroad, the fabrics attached to all products are all 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 b...
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
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.