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A base cloth processing technology for superfine fiber synthetic leather

A technology of ultra-fine fiber and processing technology, which is applied in fiber processing, textiles and papermaking, etc. It can solve the problems of non-woven fabric dyeing difficulties, non-woven fabrics with increased difficulty, and different foaming states.

Active Publication Date: 2021-09-10
浙江永祥合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the polyurethane is impregnated into the nonwoven fabric, it is in a liquid state. After the nonwoven fabric is impregnated and solidified, there is still a period of time interval. At this time, a part of the polyurethane will settle, which will lead to the distribution of polyurethane on the front and back of the nonwoven fabric. And the foaming state is different, and the foaming is uneven, which makes it difficult to dye the non-woven fabric after subsequent treatment, resulting in the difficulty of finishing after the non-woven fabric is processed into ultra-fine fibers.

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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  • A base cloth processing technology for superfine fiber synthetic leather
  • A base cloth processing technology for superfine fiber synthetic leather
  • A base cloth processing technology for superfine fiber synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] refer to figure 1 , the following substances are in parts by weight.

[0045] A base cloth processing technology for superfine fiber synthetic leather, the commercially available non-woven fabric is processed through the following steps:

[0046] S1: Dipping treatment. Dipping treatment includes the following steps:

[0047] A1: Put 75 parts of DMF into the stirred tank first, and make the stirred tank start to stir, stir for 17 minutes, and control the temperature in the stirred tank to 53°C.

[0048] A2: Add 1.6 parts of benzoyloxy ethylhexyl stearate, 0.4 parts of lauric acid, 20 parts of sodium dodecylbenzenesulfonate, and 13 parts of aminopropyltriethoxysilane to the In the stirred tank after A1 treatment, first stir for 10 min, then raise the temperature in the stirred tank to 65° C., and then stir for 10 min.

[0049] A3: Add 100 parts of polyurethane resin into the stirred tank treated in A2, lower the temperature in the stirred tank to 40° C., and stir for ...

Embodiment 2

[0062] The following substances are all in parts by weight.

[0063] A base cloth processing technology for superfine fiber synthetic leather, the commercially available non-woven fabric is processed through the following steps:

[0064] S1: Dipping treatment. Dipping treatment includes the following steps:

[0065] A1: Put 75 parts of DMF into the stirred tank first, and make the stirred tank start to stir, stir for 17 minutes, and control the temperature in the stirred tank to 53°C.

[0066] A2: Add 1.6 parts of benzoyloxy ethylhexyl stearate, 0.4 parts of lauric acid, 20 parts of sodium dodecylbenzenesulfonate, and 13 parts of aminopropyltriethoxysilane to the In the stirred tank after A1 treatment, first stir for 10 min, then raise the temperature in the stirred tank to 65° C., and then stir for 10 min.

[0067] A3: Add 100 parts of polyurethane resin into the stirred tank treated in A2, lower the temperature in the stirred tank to 40° C., and stir for 60 minutes.

[0...

Embodiment 3

[0080] The following substances are all in parts by weight.

[0081] A base cloth processing technology for superfine fiber synthetic leather, the commercially available non-woven fabric is processed through the following steps:

[0082] S1: Dipping treatment. Dipping treatment includes the following steps:

[0083] A1: Put 75 parts of DMF into the stirred tank first, and make the stirred tank start to stir, stir for 17 minutes, and control the temperature in the stirred tank to 53°C.

[0084] A2: Mix 1.6 parts of ethylhexyl benzoyl oxystearate, 0.4 parts of lauric acid, 20 parts of sodium dodecylbenzenesulfonate, 13 parts of aminopropyltriethoxysilane, 4 parts of ammonium benzoate Add them into the stirred tank treated with A1 in no sequence, stir for 10 minutes first, then raise the temperature in the stirred tank to 65°C, and stir for another 10 minutes.

[0085] A3: Add 100 parts of polyurethane resin into the stirred tank treated in A2, lower the temperature in the sti...

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 relates to the technical field of preparation methods of ultrafine fiber synthetic leather, and discloses a base cloth processing technology of ultrafine fiber synthetic leather, in which the nonwoven fabric is processed through the following steps: S1: dipping treatment; the nonwoven fabric is transported to the dipping Immersion in the liquid, the chemical composition of the impregnation solution is calculated in parts by weight: 80-120 parts of polyurethane resin, 60-90 parts of DMF, 1-3 parts of coagulation regulator, 15-25 parts of sodium dodecylbenzenesulfonate, and 10‑16 parts of triethoxysilane; S2: coating treatment; S3: coagulation and water washing treatment; after S3, the base fabric is processed. Prevent the polyurethane resin on the non-woven fabric from settling, make the foaming state of the polyurethane resin on the front and back of the non-woven fabric consistent, facilitate the subsequent processing of the base fabric, and facilitate the dyeing of the base fabric.

Description

technical field [0001] The invention relates to the technical field of a preparation method of superfine fiber synthetic leather, more specifically, it relates to a base cloth processing technology of superfine fiber synthetic leather. Background technique [0002] Microfiber synthetic leather is one of the important application products of microfiber. It has the characteristics of high physical properties and strong imitation leather performance. It is widely used in clothing, shoemaking, luggage, furniture and other industries, and occupies a very important role in people's production and life Important position. Use the non-woven fabric mentioned in the national standard as the base fabric, and then perform the base fabric processing process on the base fabric. The main purpose of the base fabric processing process is to form a solid film of a certain structure between the liquid polyurethane resin in the fiber gap of the base fabric, so that the structure of the base fa...

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 Patents(China)
IPC IPC(8): D06N3/00D06N3/14D06M13/188D06M13/224D06M13/256D06M13/463D06M13/513D06M15/564
CPCD06M13/188D06M13/224D06M13/256D06M13/463D06M13/513D06M15/564D06N3/0004D06N3/0061D06N3/0063D06N3/007D06N3/14D06N2209/046D06N2209/126D06N2211/28
Inventor 郑宁舟冉斌
Owner 浙江永祥合成材料有限公司
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