Scouring enzyme, and preparation method, application and application method thereof

A technology of scouring enzyme and pectin compound enzyme is applied in the field of textile printing and dyeing cotton and polyester-cotton pretreatment auxiliaries, which can solve the problems of unsatisfactory quality stability, large fiber damage and short stacking time. The effect of improving color rate and levelness, reducing damage and reducing overall cost

Inactive Publication Date: 2012-11-28
JIANGSU NIMATE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The shortcomings of the traditional hydrogen peroxide bleaching technology are as follows: the oxygen water steaming (or cooking) process needs to be treated at high temperature (95-100°C) for about 1 hour to complete the bleaching effect, which not only consumes high energy, but also damages the fibers. Larger, the fabric breaking strength drops signi

Method used

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  • Scouring enzyme, and preparation method, application and application method thereof
  • Scouring enzyme, and preparation method, application and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1:

[0040] The scouring enzyme in this embodiment is prepared from the following raw materials: non-ionic surfactant 6%, soda ash 35%, alkaline pectin complex enzyme 8%, peroxide hydrogen peroxide activator (tetraacetyl ethylene diamine TAED and sodium percarbonate quality The ratio is 1:2) 6%, NTA 4% and anhydrous sodium metasilicate 41%.

[0041] The preparation method is:

[0042] First mix 6% of non-ionic surfactant and 35% of soda ash, then add 8% of alkaline pectin complex enzyme and mix well, then add peroxide activator (tetraacetyl ethylene diamine TAED and sodium percarbonate quality 1:2 ratio) 6%, NTA (sodium triacetate) 4% and mix well, finally add 41% sodium metasilicate pentahydrate, mix well, stir for about 1 hour, and make white small particles The powder, the finished product of refined enzyme, is named A203.

Example Embodiment

[0043] Example 2:

[0044] The scouring enzyme in this example is prepared from the following raw materials: 9% non-ionic surfactant, 48% soda ash, 3% alkaline pectin complex enzyme, peroxide hydrogen peroxide activator (tetraacetyl ethylene diamine TAED and sodium percarbonate quality Ratio 1:2) 5%, NTA 3% and anhydrous sodium metasilicate 32%.

[0045] The preparation method is:

[0046] First mix 9% of non-ionic surfactant and 48% of soda ash, then add 3% of alkaline pectin complex enzyme and mix well, and then add peroxide activator (tetraacetyl ethylene diamine TAED and sodium percarbonate quality 1:2 ratio) 5%, NTA (sodium triacetate) 3% and mix well, and finally add 32% sodium metasilicate with zero water, mix well, stir for about 1 hour to make white small particles Powder is the finished product of refined enzyme.

Example Embodiment

[0047] Example 3:

[0048] The scouring enzyme in this embodiment is prepared from the following raw materials: non-ionic surfactant 7%, soda ash 25%, alkaline pectin complex enzyme 9%, peroxide hydrogen peroxide activator (tetraacetyl ethylene diamine TAED and sodium percarbonate quality Ratio 1:2) 4%, NTA 5% and anhydrous sodium metasilicate 50%.

[0049] The preparation method is the same as that of Example 1, except that the raw material ratio is changed.

[0050]

[0051] The method of using the scouring enzyme of the present invention is as follows:

[0052] The amount used varies with fiber types and processing conditions. Example 4: One-bath scouring and bleaching of cotton and polyester / cotton knitted fabrics. Hydrogen peroxide (27%) 5-7g / L Scouring enzyme A203 prepared in Example 1 2-3g / L Bath ratio 1:7-10, 70℃~85 ℃, 50-60 minutes, hot water washing, water washing.

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Abstract

The invention relates to a scouring enzyme which is characterized by comprising the following raw materials in percentage by weight: 30-50% of sodium metasilicate, 3-10% of alkaline pectin compound enzyme, 20-50% of sodium carbonate, 5-10% of non-ionic surface active agent, 3-8% of peroxide oxydol activating agent, and 2-5% of sodium nitrilo triacetate; and the peroxide oxydol activating agent is prepared by compounding tetraacetylethylenediamine (TAED) and sodium percarbonate at a mass ratio of 1:2. The preparation method of the scouring enzyme comprises the following steps: non-ionic surface active agent and sodium carbonate are mixed uniformly and then are added with alkaline pectin compound enzyme to be mixed uniformly; peroxide oxydol activating agent and sodium nitrilo triacetate are added in the mixture in sequence; and sodium metasilicate is added finally, and the mixture is uniformly mixed and stirred for about one hour. The scouring enzyme can be used for boiling and bleaching of cotton yarn, cotton cloth, flax and ordinary cotton fabric or other mixed fabric before dyeing and has the advantages of simple process, low energy consumption, short time and low damage to fiber.

Description

technical field [0001] The invention relates to an auxiliary agent for textile printing and dyeing cotton and polyester cotton pretreatment, in particular to a scouring enzyme and a preparation method thereof. Background technique [0002] The pretreatment of cotton fabrics includes desizing, scouring, bleaching and mercerizing. The purpose of desizing is not only to remove the size on the gray cloth, but also to remove some natural impurities to facilitate subsequent scouring and bleaching. Desizing methods include enzyme desizing, alkali desizing, acid desizing, etc. The most widely used is alkali desizing. After the gray fabric is desized, most of the natural impurities (such as waxy substances, pectin substances, nitrogenous substances, etc.) remain on the fabric, which affects the dyeing and printing process. In order to remove these impurities, the fabric must be scoured in high temperature lye. The main agent for scouring is caustic soda. In order to improve the sc...

Claims

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Application Information

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IPC IPC(8): D06M11/79D06M11/38D06M16/00C12S11/00D06L3/02D06M101/06D06M101/32D06L4/12D06L4/13
Inventor 徐美君查鹏程
Owner JIANGSU NIMATE SCI & TECH CO LTD
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