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Preparation method of flame-retardant super-fine wool fabric

A fabric and wool technology, applied in the field of preparation of flame-retardant ultrafine wool fabrics, can solve the problems of not meeting the needs of natural environmental protection, strong oral toxicity and the like

Inactive Publication Date: 2019-03-15
JIANGSU EAST CHINA TEXTILE PROD TESTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, potassium hexafluorotitanate and potassium hexafluorozirconate are chemical finishing agents with strong oral toxicity, which do not meet the current market demand for natural and environmentally friendly clothing fabrics

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

[0018] The preparation method of embodiment 1 flame-retardant superfine wool fabric comprises the following steps:

[0019] S1: Modification of sodium alginate, using an oxidant to oxidize sodium alginate to prepare polyaldehyde-based sodium alginate;

[0020] S2: Prepare the oxidized polyaldehyde-based sodium alginate into a 1% solution for later use, weigh the wool fabric, and put the fabric into the polyaldehyde-based sodium alginate solution at a bath ratio of 1:50), stir at 45°C for 8 hours, and then Place in an oven at 60°C and dry to constant weight;

[0021] S3: Place the woolen fabric obtained in S2 in a soluble calcium salt solution, stir it in a water bath at 30°C for 7 minutes, take it out, wash it with water to remove the residue on the fabric surface, dry it in an oven at 70°C until it reaches a constant weight, and place the woolen fabric on In an aluminum sulfate solution, stir at 25°C for 60 minutes, take it out, wash with water, and dry to obtain a finished ...

Embodiment 2

[0027] The difference between embodiment 2 and embodiment 1 is:

[0028] S2: Prepare the oxidized polyaldehyde-based sodium alginate as a 3% solution for later use, weigh the woolen fabric, put the fabric into the polyaldehyde-based sodium alginate solution at a bath ratio of 1:40, stir at 55°C for 5 hours, and then set aside Dry in an oven at 70°C to constant weight;

[0029] S3: Place the woolen fabric obtained in S2 in a soluble calcium salt solution, stir it in a water bath at 25°C for 12 minutes, take it out, wash it with water to remove the residue on the surface of the fabric, dry it in an oven at 60°C until it reaches a constant weight, and place the woolen fabric on Stir in aluminum sulfate solution for 40 minutes at 32°C, take it out, wash with water, and dry to obtain a finished flame-retardant superfine wool fabric.

[0030] The oxidant of S1 is sodium periodate, the sodium alginate is high G sodium alginate, and the molar ratio of sodium periodate to sodium algin...

Embodiment 3

[0034] The difference between embodiment 3 and embodiment 2 is that

[0035] S2: Prepare the oxidized polyaldehyde-based sodium alginate into a 2% solution for later use, weigh the woolen fabric, put the fabric into the polyaldehyde-based sodium alginate solution at a bath ratio of 1:45, stir at 50°C for 6 hours, and then set aside Dry in an oven at 65°C to constant weight;

[0036] S3: Place the woolen fabric obtained in S2 in a soluble calcium salt solution, stir it in a water bath at 28°C for 8 minutes, take it out, wash it with water to remove the residue on the surface of the fabric, place it in an oven at 65°C and dry it to constant weight, then place the woolen fabric on Stir in aluminum sulfate solution for 50 minutes at 29°C, take it out, wash with water, and dry to obtain a finished flame-retardant superfine wool fabric.

[0037] The oxidant of S1 is sodium periodate, the sodium alginate is high G sodium alginate, and the molar ratio of sodium periodate to sodium al...

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 discloses a preparation method of flame-retardant super-fine wool fabric. The preparation method comprises the following three steps: oxidizing sodium alginate, finishing fabric with oxidized sodium alginate and performing ion exchange. In the preparation method of the flame-retardant super-fine wool fabric, multi-aldehyde sodium alginate is adopted as a finishing agent for film formation on the surfaces of fibers, and the sodium alginate covered on the surfaces of the fibers are used for isolating air and heat, so that char formation is promoted, water vapor is vaporized by absorption of heat, and the thermal decomposition temperature is lowered accordingly; in addition, the step that the sodium alginate is heated is earlier than the step of decomposition of wool, so that the temperature on the surface of the fabric is lowered while heat is absorbed and the flame retardant effect is achieved finally.

Description

technical field [0001] The invention relates to the technical field of wool reinforcement, in particular to a method for preparing a flame-retardant superfine wool fabric. Background technique [0002] Ultra-fine wool fibers are fine, and the scales on the surface are closely arranged, clear and neat, most of them are circular and horizontal, the edges of the scales are obviously raised, the reflection is small, and the luster is soft. [0003] The flame retardant finishing of wool in the prior art is divided into three types: non-permanent, semi-permanent and permanent according to the duration of the flame retardant effect. Non-permanent flame-retardant finishing is not resistant to water washing. For example, wool can be temporarily flame-retardant after being impregnated and dried in solutions such as orthophosphoric acid, metaphosphoric acid, sulfuric acid, sulfamic acid, and boric acid. It will fail after washing; semi-permanent flame-retardant finishing can withstand ...

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): C08B37/04D06M15/13D06M101/12
CPCC08B37/0084D06M15/13D06M2101/12D06M2200/30
Inventor 石小正刘刚曹敬农
Owner JIANGSU EAST CHINA TEXTILE PROD TESTING CO LTD
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