Alkali-resisting penetrating agent for cotton fabric mercerization

An alkali-resistant penetrant, cotton fabric technology, applied in the direction of plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of low conversion rate of sulfuric acid method, high salt content in products, complicated operation, etc., to improve the absorption of dyes. Ability, low inorganic salt content, light color effect

Inactive Publication Date: 2012-09-05
天津达一琦精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sulfur trioxide method is suitable for large-scale production, with large investment and complicated operation
Fuming sulfuric acid method has low conversion rate and high salt content in the product

Method used

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  • Alkali-resisting penetrating agent for cotton fabric mercerization
  • Alkali-resisting penetrating agent for cotton fabric mercerization
  • Alkali-resisting penetrating agent for cotton fabric mercerization

Examples

Experimental program
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Effect test

preparation example Construction

[0023] The preparation method of the alkali-resistant mercerizing penetrating agent is characterized in that: it is carried out according to the following steps, 25-80 parts of one kind of fatty alcohol or multiple mixed fatty alcohols, 45-150 parts of fatty alcohol ether (EO: 7-10) are placed in In a 500ml three-necked flask, start stirring, add 2-45 parts of a catalyst or composite catalyst and 60-100 parts of sulfamic acid, connect the condenser to reflux, heat up to 120°C and start timing, keep warm for 120 minutes, and cool down to 100°C Slowly add 100 parts of soft water, and adjust the pH to 8.5 with sodium hydroxide aqueous solution after the reaction materials are stirred evenly.

[0024] Alkali resistance penetration evaluation method:

[0025] The evaluation method adopts the canvas piece sedimentation method-put the cut canvas piece of 2cm×2cm into the working solution (99.0g of sodium hydroxide aqueous solution, add 1.0g of penetrant, and stir well), and calculate...

Embodiment 1

[0029] An alkali-resistant penetrating agent for mercerizing cotton fabrics, comprising the following components, by weight (g),

[0030]

[0031] Measurement: Penetration time at 25 Baume degrees: 17.6 seconds

[0032] Penetration time at 28 Baume degrees: 20.8 seconds.

Embodiment 2

[0034] An alkali-resistant penetrating agent for mercerizing cotton fabrics, comprising the following components, by weight (g),

[0035]

[0036] Penetration time at 25 Baume degrees: 8.9 seconds

[0037] Penetration time at 28 Baume: 12.5 seconds.

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PUM

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Abstract

The invention relates to an alkali-resisting penetrating agent for cotton fabric mercerization. The penetrating agent is characterized by comprising the following ingredients in parts by weight: 60-100 parts of sulfamic acid, 25-80 parts of fatty alcohol, 45-150 parts of (EO:7-10) fatty alcohol ether and 2-45 parts of catalyst. A preparation method of the alkali-resisting penetrating agent comprises the following steps: putting the fatty alcohol and the fatty alcohol ether in proportion into a three-opening bottle of 500ml, starting stirring, adding the catalyst and the sulfamic acid, powering on a condenser for backflow, heating to 120 DEG C, performing heat preservation for 120 minutes, adding 100 parts of soft water slowly when the temperature is less than 100 DEG C, and stirring uniformly and subsequently regulating the pH value to 8-8.5 by use of a sodium hydroxide water solution. The alkali-resisting penetrating agent provided by the invention has the beneficial effects that the investment is less, three wastes (waste air, waste water and industrial residual) are prevented, the product is low in color, and the inorganic salt content is low.

Description

technical field [0001] The invention belongs to textile chemicals, in particular to an alkali-resistant penetrating agent for mercerizing cotton fabrics. Background technique [0002] The mercerizing process is to make the cotton fiber produce a silk-like durable luster, improve the dimensional stability of the finished product, and also improve the ability to absorb dyes, and give the fabric a soft and plump feel. In the mercerizing process, a higher concentration of caustic soda [18.7%-23.5% (25-30Be)] is used. In the continuous mercerizing process, the time of cotton fabrics in the lye is generally only 30-50s, so The permeability of mercerizing liquid is very important. In this concentration of lye, the general penetrating agent cannot be used, and the penetrating agent specially used for the mercerizing process must be used. Therefore, the mercerizing penetrating agent is often used as a special auxiliary agent. In the concentrated alkali solution, the cotton fiber sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/342D06M13/165D06M13/144D06M13/148D06M15/53D06M101/06
Inventor 赵光
Owner 天津达一琦精细化工有限公司
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