CN1206401C - Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme - Google Patents
Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme Download PDFInfo
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- CN1206401C CN1206401C CNB021485275A CN02148527A CN1206401C CN 1206401 C CN1206401 C CN 1206401C CN B021485275 A CNB021485275 A CN B021485275A CN 02148527 A CN02148527 A CN 02148527A CN 1206401 C CN1206401 C CN 1206401C
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Abstract
The present invention relates to a pretreatment technology for full cotton or dacron/cotton knitted fabrics by an intermittent biologic enzyme oxidation and immersion method, which belongs to the technical field of a pretreatment technology for knitted fabrics in printing and dyeing industry. The present invention solves the technical problem of poor treatment effect of the traditional pretreatment technology for cotton fabrics with the technology of kiering firstly and then bleaching, and achieves the purpose of optimizing the treatment effect. A full cotton or dacron/cotton knitted fabric is firstly immersed in hydrogen peroxide and washed with water, and then is immersed in a biologic enzyme; then, the enzyme is destroyed; the full cotton or dacron/cotton knitted fabric is washed with water, and the pretreatment of the knitted fabric is completed by the intermitting method. The present invention has the characteristics of favorable pretreatment effect and little fiber damage; the treated fabric has the advantages of high quality and soft handle. The chrominance, the pH value and the COD value of treated waste water are far lower than those of the traditional technology. The pretreatment technology of the present invention lightens the burden of sewage treatment and is good for ecological environment protection.
Description
Technical field
The present invention relates to a kind of cotton or wash/cotton fabrics oxidation dipping biology enzyme dipping batch process pre-treatment process, belong to the knitted fabric pre-treatment process technical field of dyeing.
Background technology
Contain grade natural impurity or claim accompaniment of 0.4～1.2% pectic substance, 0.4～1.2% wax, 1.0～1.9% protein, 0.7～1.6% ash on the cotton fiber, these impurity mainly are present in the cuticula and primary cell wall of cotton fiber.The existence of these impurity has had a strong impact on the wettability of cotton fiber, makes cotton fiber have hydrophobicity, and has had influence on performances such as the dyeing of cotton fiber, back arrangement.So the first step of cotton textile dyeing and finishing processing is to carry out pre-treatment, and the natural impurity on the cotton fiber is removed, and improves wetting, the permeance property of COTTON FABRIC, for good condition is created in follow-up dyeing, back arrangement.
The pre-treatment of cotton or wash/cotton fabrics is main at present adopts caustic soda and surfactant kiering, the mode of bleaching again, utilize caustic soda impurity such as lyophobic dust on the cotton fiber to be removed in effects such as the emulsification of the middle-and-high-ranking fatty alcohol of wax, higher fatty acids and hydrocarbon, dispersion, improve wettability to the decomposition of pectic substance, protein and to the saponification of fatty acid ester material in the wax and surfactant.This technology has reasonable pre-treatment effect, but also has many problems simultaneously.This processing mode cotton wax clearance is higher, reaches more than 70%, has influenced the feel of cotton fabrics; In addition, owing to handle under high temperature highly basic condition, the damage of cotton fiber is also bigger; Even more serious is, the chroma in waste water height of highly basic kiering, alkalescence is strong, the pH value reaches more than 12, the COD value is up to more than the 10000ppm, severe contamination ecological environment.
Though present cotton knitting industry is also gradually adopting alkali oxygen boiling, bleaching-bathing method, because alkali charge is still higher, the problems referred to above still exist.
The biology enzyme pre-treatment of COTTON FABRIC is owing to utilized the mildness of selectivity, high efficiency and the treatment conditions of biology enzyme height, basically under nearly neutrallty condition, handle, so the damage to fiber is little, the colourity of handling waste water is low, the pH value is near neutral, and the significantly reduction of COD value, only has original 1/2～1/3, significantly alleviated pollution, had important social, economic worth environment.
Although years of researches have been carried out in the biology enzyme pre-treatment of COTTON FABRIC, owing to still continued to use traditional first kiering, Piao Bai process route again, so treatment effect is not good, lyophobic dust can't be removed at all.Under the situation of getting rid of the false capillary effect of surfactant, adopt first biology enzyme concise, Piao Bai technology again, capillary effect is 0 (cm/30min).
Summary of the invention
(1) technical problem that will solve
A kind of cotton or wash/cotton fabrics oxidation dipping biology enzyme dipping batch process pre-treatment process will solve traditional first kiering that the knitted fabric pre-treatment process continued to use, the technical problem of the PROCESS FOR TREATMENT poor effect of bleaching again, reaches the purpose of optimization process effect.
(2) technical scheme
A kind of cotton or wash/cotton fabrics oxidation dipping biology enzyme dipping batch process pre-treatment process, be with cotton or wash/cotton fabrics carries out the preliminary treatment of hydrogen peroxide oxide impregnation earlier, and washing is carried out the biology enzyme maceration enzyme again and is handled, the enzyme that goes out is washed each operation and is finished the pre-treatment of knitted fabric.
Cotton or wash/cotton knitted fabric: this technology is applicable to cotton or washs/cotton knitted fabric, as interlock fabric, single jersey, flannelette, T-shirt lining etc.
The preliminary treatment of hydrogen peroxide oxide impregnation: this operation has important function to the effect that guarantees the biology enzyme pre-treatment.Kicking the beam without hydrogen peroxide oxidation preliminary treatment or hydrogen peroxide oxidation preliminary treatment all to influence the treatment effect of biology enzyme.The hydrogen peroxide pretreating process is: hydrogen peroxide 2～15g/L of 30%, sodium metasilicate 0～15g/L, polyoxyethylene-type non-ionic surface active agent or anion surfactant are wetting, bleeding agent 0～5g/l, pH5～13, knitted fabric is bathed bath raio 1: 10～50 (w/w) with processing, 70～120 ℃ of pretreatment temperatures, pretreatment time 20～120min.
Washing: because biology enzyme is handled pH is had certain requirement, and the pH after the oxidation pre-treatment not necessarily meets the requirement that follow-up biology enzyme is handled, so after the preliminary treatment of hydrogen peroxide oxide impregnation, need fully washing.
The biology enzyme maceration enzyme is handled: be the key that guarantees treatment effect, need careful kind and the treatment conditions of selecting enzyme.The enzyme that the present invention selects is acid pectase, alkaline pectase or neutral cellulase, acidic cellulase, or the combination of pectase and/or cellulase.Its bioenzyme pretreatment technology is: pectase 0～2.5g/L, cellulase 0～3.0g/L, polyoxyethylene-type non-ionic surface active agent or anion surfactant are wetting, bleeding agent 0～5g/l, knitted fabric and enzyme are handled and are bathed bath raio 1: 10～50 (w/w), pH7.0～9.8,50～70 ℃ of enzyme treatment temperatures, enzyme processing time 20～150min.
Enzyme goes out: may adopt cellulase when handling owing to enzyme, and cellulase can produce hydrolysis to cellulose, the damage fiber is so the enzyme that will go out is handled.The enzyme that goes out can adopt the method that improves the pH value or improve temperature to 75～85 ℃ processing 10～20min.
Washing: will fully wash behind the enzyme that goes out.
In the preliminary treatment of hydrogen peroxide oxide impregnation and biology enzyme maceration enzyme are handled, can add the polyoxyethylene-type non-ionic surface active agent, anion surfactant is made wetting, bleeding agent, also can not add any wetting, bleeding agent.
(3) beneficial effect
The present invention is different from conventional process flow, adopts and carries out the hydrogen peroxide oxidation preliminary treatment earlier, carries out the novel pre-treatment process of biology enzyme impregnation process again, and biology enzyme has adopted pectase or cellulase or both combinations in handling.Adopt cotton fabrics bioenzyme pretreatment technology of the present invention to have the pre-treatment good effectiveness.Under the situation that does not add any surfactant, the capillary effect after 105 ℃ of oven dry is more than 7.0cm/30min.Technology of the present invention in addition is little to fibre damage; handle the quality height of fabric, soft, the colourity of PROCESS FOR TREATMENT waste water particularly of the present invention, pH value, COD value are far below traditional handicraft; be very beneficial for the protection of ecological environment, also alleviated the burden of sewage disposal greatly.
The specific embodiment
Embodiment 1: all-cotton knitting interlock fabric 2000g.
The hydrogen peroxide preliminary treatment: 30% hydrogen peroxide 5g/L, sodium metasilicate 4g/L, nonionic or anion are wetting, bleeding agent 0～2g/L, 95 ℃ of temperature, pH 11～12, and bath raio 1: 20 is handled 90min.
Biology enzyme is handled: biology enzyme treatment fluid 40000mL, and alkaline pectase 0.1g/L wherein, neutral cellulase 0.3g/L, nonionic or anion are wetting, bleeding agent 0～2g/L, 65 ℃ of treatment temperatures, pH 8.5, bath raio 1: 20, processing time 90min.Be warming up to 75～85 after the processing and handle 10～20min enzyme that goes out, fully washing, room temperature airing or oven dry.
Knitted fabric after above-mentioned processing, the capillary effect behind the room temperature airing reaches 14.5cm/30min, and the water droplet soak time was less than 1 second.Capillary effect after 105 ℃ of oven dry reaches 9.5cm/30min, and the water droplet soak time was less than 1 second, and whiteness is more than 80.
Embodiment 2: all-cotton knitting interlock fabric 2000g.
The hydrogen peroxide preliminary treatment: 30% hydrogen peroxide 5g/L, sodium metasilicate 4g/L, 95 ℃ of temperature, pH 11～12, and bath raio 1: 20 is handled 90min.
Biology enzyme is handled: biology enzyme treatment fluid 40000mL, and alkaline pectase 0g/L wherein, neutral cellulase 0.3g/L, 65 ℃ of treatment temperatures, pH 8.5, bath raio 1: 20, processing time 90min.Be warming up to 75～85 ℃ after the processing and handle 10～20min enzyme that goes out, fully washing, room temperature airing or oven dry.
Knitted fabric after above-mentioned processing, the capillary effect behind the room temperature airing reaches 14.6cm/30min, and the water droplet soak time was less than 1 second.Capillary effect after 105 ℃ of oven dry reaches 8.0cm/30min, and the water droplet soak time was less than 2 seconds, and whiteness is more than 80.
Embodiment 3: all-cotton knitting interlock fabric 2000g.
The hydrogen peroxide preliminary treatment: 30% hydrogen peroxide 5g/L, sodium metasilicate 4g/L, polyoxyethylene-type non-ionic surface active agent JFC 2g/L, 95 ℃ of temperature, pH 11～12, and bath raio 1: 20 is handled 90min.
Biology enzyme is handled: biology enzyme treatment fluid 40000mL, and alkaline pectase 0.1g/L wherein, neutral cellulase 1.5g/L, polyoxyethylene-type non-ionic surface active agent JFC 2g/L, 65 ℃ of treatment temperatures, pH 8.5, bath raio 1: 20, processing time 90min.Be warming up to 75～85 ℃ after the processing and handle 10～20min enzyme that goes out, fully washing, room temperature airing or oven dry.
Knitted fabric after above-mentioned processing, the capillary effect behind the room temperature airing reaches 16.6cm/30min, and the water droplet soak time was less than 1 second.Capillary effect after 105 ℃ of oven dry reaches 13.0cm/30min, and the water droplet soak time was less than 1 second, and whiteness is more than 80.
Claims (3)
1, a kind of cotton or wash/the cotton fabrics bioenzyme pretreatment technology is characterized in that adopting the preliminary treatment of hydrogen peroxide oxide impregnation, washing, and the biology enzyme maceration enzyme is handled, the enzyme that goes out, washing, batch process is finished the pre-treatment of knitted fabric;
Hydrogen peroxide oxide impregnation preliminary treatment: hydrogen peroxide 2～15g/L of 30%, sodium metasilicate 0～15g/L, wetting, the bleeding agent 0～5g/L of polyoxyethylene-type non-ionic surface active agent or anion surfactant, knitted fabric is 1: 10～50 with handling the bath bath raio by quality ratio, pH5～13,70～120 ℃ of pretreatment temperatures, pretreatment time 20～120min;
Washing: need fully washing after the preliminary treatment of hydrogen peroxide oxide impregnation;
The biology enzyme maceration enzyme is handled: pectase 0～2.5g/L, cellulase 0～3.0g/L, total enzyme amount is no less than 0.3g/L, wetting, the bleeding agent 0～5g/L of polyoxyethylene-type non-ionic surface active agent or anion surfactant, knitted fabric and enzyme are handled and bathed bath raio is 1: 10～50 by quality ratio, pH7.0～9.8,50～70 ℃ of enzyme treatment temperatures, enzyme processing time 20～150min;
Enzyme goes out: adopt to improve pH value or improve temperature to 75～85 ℃, processing 10～20min;
Washing: will fully wash behind the enzyme that goes out.
2, a kind of cotton according to claim 1 or wash/the cotton fabrics bioenzyme pretreatment technology, it is characterized in that being applicable to the cotton of processing or wash/cotton fabrics comprises cotton knitted cloth, single jersey, flannelette, T-shirt lining.
3, a kind of cotton according to claim 1 or wash/the cotton fabrics bioenzyme pretreatment technology, in it is characterized in that preliminary treatment of hydrogen peroxide oxide impregnation and biology enzyme maceration enzyme are handled, can add the polyoxyethylene-type non-ionic surface active agent, anion surfactant is made wetting, bleeding agent, also can not add any wetting, bleeding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021485275A CN1206401C (en) | 2002-12-10 | 2002-12-10 | Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021485275A CN1206401C (en) | 2002-12-10 | 2002-12-10 | Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme |
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| CN1417402A CN1417402A (en) | 2003-05-14 |
| CN1206401C true CN1206401C (en) | 2005-06-15 |
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| CNB021485275A Expired - Fee Related CN1206401C (en) | 2002-12-10 | 2002-12-10 | Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436702C (en) * | 2007-01-30 | 2008-11-26 | 厦门光达融通科技有限公司 | Nano-biological enzyme additive and device and method for making same |
| CN101805997A (en) * | 2010-03-18 | 2010-08-18 | 绍兴志仁印染有限公司 | Novel open-width shortened pretreatment process of heavy pure cotton fabric |
| CN105369634A (en) * | 2015-11-18 | 2016-03-02 | 德清县伊得利丝绸有限公司 | Cotton and linen interwoven fabric bleaching dyeing deoxygenization process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730808B (en) * | 2005-08-30 | 2010-06-16 | 上海市纺织科学研究院 | pretreatment cleaning continuous production process for knitted fabric |
| CN102535177A (en) * | 2011-12-06 | 2012-07-04 | 常熟市凯达印染有限公司 | Bio-enzyme pretreatment technology for pure cotton fabric |
| CN104313865A (en) * | 2014-08-20 | 2015-01-28 | 深圳全棉时代科技有限公司 | Producing method of primary-color all-cotton non-woven fabric, the primary-color all-cotton non-woven fabric and products of the fabric |
| CN104790198A (en) * | 2015-04-27 | 2015-07-22 | 苏州市吴中区甪直明达漂染厂 | Multifunctional additive for fabric bleaching |
-
2002
- 2002-12-10 CN CNB021485275A patent/CN1206401C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436702C (en) * | 2007-01-30 | 2008-11-26 | 厦门光达融通科技有限公司 | Nano-biological enzyme additive and device and method for making same |
| CN101805997A (en) * | 2010-03-18 | 2010-08-18 | 绍兴志仁印染有限公司 | Novel open-width shortened pretreatment process of heavy pure cotton fabric |
| CN105369634A (en) * | 2015-11-18 | 2016-03-02 | 德清县伊得利丝绸有限公司 | Cotton and linen interwoven fabric bleaching dyeing deoxygenization process |
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| Publication number | Publication date |
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| CN1417402A (en) | 2003-05-14 |
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