CN104032563B - A kind of polyester blended fabric bleaching pre-treating method - Google Patents
A kind of polyester blended fabric bleaching pre-treating method Download PDFInfo
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- CN104032563B CN104032563B CN201410230502.3A CN201410230502A CN104032563B CN 104032563 B CN104032563 B CN 104032563B CN 201410230502 A CN201410230502 A CN 201410230502A CN 104032563 B CN104032563 B CN 104032563B
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- blended fabric
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Abstract
The present invention relates to a kind of pre-treating method of polyester blended fabric.Bleach-activating N-cigarette acyl lactam mixes with hydrogen peroxide or its presoma by the method in aqueous, generates peroxy acid, can be used for cotton/wash, stick/wash, hair/the bleaching pre-treatment of BLENDED FABRIC such as to wash, realize low temperature, neutrality, rapid bleach.The damage of the method to BLENDED FABRIC is little, is highly suitable for the bleaching of valuable BLENDED FABRIC.And it is nicotinic acid that this bleach-activating decomposes afterproduct, nontoxic to environment, meet the green needs produced.
Description
Technical field
The invention discloses a kind of polyester blended fabric bleaching pre-treating method, be applicable to cotton/wash, stick/wash, the low temperature of the BLENDED FABRIC such as hair/wash, neutral bleaching pre-treatment process.
Technical background
The fibers mixture such as polyster fibre and cotton, hair, viscose, as clothes and Party A's material, to overcome the low shortcoming of other fibrous material intensity.But, because other fibers contain natural colouring matter in BLENDED FABRIC, significantly reduce the whiteness of fabric, therefore need, through bleaching pre-treatment processing, to reach and take or the requirement of following process.
The pre-treatment of tradition hydrogen peroxide bleaching requires to add NaOH or NaCO usually
3in highly basic (pH11-12), high temperature (close to 100 DEG C), longer processing time (2h or longer time), not only cause huge energy ezpenditure, increase plant chimney stalk processing load, and become the major injury of BLENDED FABRIC.
Bleach-activating is organic peroxide acid precursor, with hydrogen peroxide, peroxidating hydrolysis can occur in aqueous, generates peroxy acid.Compared with hydrogen peroxide, peroxy acid has higher activity, at low temperature, effectively can remove foreign pigment under near-neutral sulfite deinking.Bleach-activating is developed for family and industrial washing at first, and bleach-activating the most frequently used at present has tetraacetyl ethylene diamine (TAED) and nonanoyloxybenzene sulfonate (NOBS).But TAED's is water-soluble poor, greatly limit its application in industrial bleaching; In addition, TAED activated hydrogen peroxide system is not high lower than the bleaching efficiency under 70 DEG C of conditions in temperature.NOBS needs (pH>10) application in the basic conditions; if pH too low (close to neutral) or consumption excessive; the peroxy acid generated can continue that nucleophilic substitution occurs with NOBS and generate active lower diacyl peroxide, reduces bleaching efficiency.
The present invention adopts a kind of Activation of Hydrogen Peroxide Solution agent N-cigarette acyl lactam of novel autonomous synthesis as bleaching assistant; to cotton/wash, the BLENDED FABRIC such as stick/to wash and carry out neutral cold bleaching, major injury can not be caused to matrix of materials; and this Activation of Hydrogen Peroxide Solution agent is nontoxic to environment, realize green production.
Summary of the invention
The invention discloses a kind of polyester blended fabric bleaching pre-treating method.The method is by bleach-activating, hydrogen peroxide or its presoma, and hydrogen peroxide stabilizer etc., by formula mixing, realize efficiently bleaching polyester blended fabric under low temperature, weakly acidic pH environment, and do not cause major injury to fabric.
This bleaching pre-treating method can divide three phases to implement.First stage is the preparation of bleaching pre-treatment system; Second stage is the low temperature pre-treatment processing of polyester blended fabric; Phase III is that fabric face residue is removed in cleaning.
In bleaching processing pre-treatment, surfactant used can be a kind of nonionic or anion surfactant, or kinds of surface activating agent is composite.
Hydrogen peroxide stabilizer used is TinoclariteWO.
Acid-base modifier used be sodium acetate, sodium hydrogen phosphate, sodium dihydrogen phosphate, natrium citricum, sodium bicarbonate, sodium carbonate one or more are composite.
Bleach-activating used is N-cigarette acyl lactam, and its general structure is as follows:
Wherein lactam group is the leaving group of cationic bleach-activating, n=1 ~ 5 in its general formula, and W, X, Y, Z are the groups such as hydrogen, alkyl, aryl, alkoxyl, hydroxyl, nitro, amino, halogen, sulfydryl, cyano group and trifluoromethyl.
Beneficial effect of the present invention: can be used in cotton/wash, stick/wash, hair/the bleaching pre-treatment processing of BLENDED FABRIC such as to wash; Processing environment is gentle: low temperature, weakly acidic pH water-bath, short time; Fabric damage is little, and bleaching effect is good; Bleach-activating used is N-cigarette acyl lactam, and after its bleaching, analyte is nicotinic acid (also known as vitamin B3), nontoxic to environment.
Accompanying drawing 1 is shown in its effect diagram.
Accompanying drawing explanation
Fig. 1 is the process of novel hydrogen peroxide bleaching activator bleached rear generation nicotinic acid (vitamin B3), wherein n=1 ~ 5, W, X, Y, Z are the groups such as hydrogen, alkyl, aryl, alkoxyl, hydroxyl, nitro, amino, halogen, sulfydryl, cyano group and trifluoromethyl.
Detailed description of the invention
Set forth distinguishing feature of the present invention further below by example, but the present invention is in no way limited to listed example.
Formula:
Bath raio: 30:1
Temperature: 50 DEG C
Time: 30min
Example one: cotton/to wash the bleaching of BLENDED FABRIC (50:50)
In numbering 1 and 3, except not adding activator, other condition is all identical with numbering 2.
Example two: stick/wash BLENDED FABRIC (70:30)
In numbering 3, except not adding activator, other condition is all identical with numbering 4.
Example one, example two all operate shown in formula.Can find out, the conventional activating agent TAED applied under the bleaching effect of N-nicotinoyl base lactams activator is better than similarity condition.
Claims (5)
1. a polyester blended fabric bleaching pre-treating method; it is characterized in that: bleach-activating and the composite and bleaching pre-treatment being applied to polyester blended fabric of hydrogen peroxide are processed; bleaching temperature is 25 DEG C-80 DEG C; bleach in the aqueous solution of pH7 ± 1; bleach-activating is N-cigarette acyl lactam, and its general structure is as follows:
Wherein: n=1 ~ 5, W, X, Y, Z are hydrogen, alkyl, aryl, alkoxyl, hydroxyl, nitro, amino, halogen, sulfydryl, cyano group or trifluoromethyl.
2. polyester blended fabric bleaches pre-treating method according to claim 1, it is characterized in that: after the bleaching of bleach-activating N-cigarette acyl lactam, catabolite is nicotinic acid or derivatives thereof.
3. polyester blended fabric bleaches pre-treating method according to claim 1, it is characterized in that: the concentration of bleach-activating used and hydrogen peroxide is respectively: 2-10g/L, 5-15g/L.
4. polyester blended fabric bleaches pre-treating method according to claim 1, it is characterized in that: bleaching time is 20-60min.
5. polyester blended fabric bleaches pre-treating method according to claim 1, it is characterized in that: the bleaching pre-treatment that bleach-activating and hydrogen peroxide compound can not only be used for all kinds of polyester blended fabric is processed, papermaking can also be used for, the bleaching process of medical field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230502.3A CN104032563B (en) | 2014-05-27 | 2014-05-27 | A kind of polyester blended fabric bleaching pre-treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410230502.3A CN104032563B (en) | 2014-05-27 | 2014-05-27 | A kind of polyester blended fabric bleaching pre-treating method |
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| Publication Number | Publication Date |
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| CN104032563A CN104032563A (en) | 2014-09-10 |
| CN104032563B true CN104032563B (en) | 2016-03-23 |
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| CN201410230502.3A Active CN104032563B (en) | 2014-05-27 | 2014-05-27 | A kind of polyester blended fabric bleaching pre-treating method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412058A1 (en) * | 1989-06-12 | 1991-02-06 | Sigma-Tau Industrie Farmaceutiche Riunite S.p.A. | 1-acyl-2-pyrrolidinones as enhancers of learning and memory and pharmaceutical compositions containing same |
| CN103046383A (en) * | 2012-11-27 | 2013-04-17 | 江南大学 | Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process |
| CN103225199A (en) * | 2013-05-07 | 2013-07-31 | 江南大学 | Preparation and application method of fabric normal-temperature rinsing system |
| CN103554024A (en) * | 2013-11-22 | 2014-02-05 | 江南大学 | Synthesis method for cationic bleaching activating agents with surface activity |
-
2014
- 2014-05-27 CN CN201410230502.3A patent/CN104032563B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412058A1 (en) * | 1989-06-12 | 1991-02-06 | Sigma-Tau Industrie Farmaceutiche Riunite S.p.A. | 1-acyl-2-pyrrolidinones as enhancers of learning and memory and pharmaceutical compositions containing same |
| CN103046383A (en) * | 2012-11-27 | 2013-04-17 | 江南大学 | Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process |
| CN103225199A (en) * | 2013-05-07 | 2013-07-31 | 江南大学 | Preparation and application method of fabric normal-temperature rinsing system |
| CN103554024A (en) * | 2013-11-22 | 2014-02-05 | 江南大学 | Synthesis method for cationic bleaching activating agents with surface activity |
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| CN104032563A (en) | 2014-09-10 |
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Address after: 313000, Huzhou City, Zhejiang province Changxing County folder Town around the city Patentee after: LAIMEI TECHNOLOGY CO.,LTD. Address before: 313000, Huzhou City, Zhejiang province Changxing County folder Town around the city Patentee before: ZHEJIANG LAIMEI TEXTILE PRINTING AND DYEING TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A Bleaching Pretreatment Method for Polyester Blended Fabrics Effective date of registration: 20221013 Granted publication date: 20160323 Pledgee: Changxin Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: LAIMEI TECHNOLOGY CO.,LTD. Registration number: Y2022980018200 |
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