CN101929064A - Scouring and bleaching agent combination and application thereof - Google Patents
Scouring and bleaching agent combination and application thereof Download PDFInfo
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- CN101929064A CN101929064A CN2009100535354A CN200910053535A CN101929064A CN 101929064 A CN101929064 A CN 101929064A CN 2009100535354 A CN2009100535354 A CN 2009100535354A CN 200910053535 A CN200910053535 A CN 200910053535A CN 101929064 A CN101929064 A CN 101929064A
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Abstract
The invention discloses a scouring and bleaching agent combination used as an assistant for the pretreatment of cotton and blended fabrics and application thereof. Based on the total weight of the combination, the scouring and bleaching agent combination comprises the following components in percentage by weight: 40-95% of adsorptive abstergent, 5-20% of surfactant, 0-25% of water soluble alkali, 0-25% of scouring and bleaching synergist and 0-20% of chelate dispersant. When being used with oxydol, the scouring and bleaching agent can achieve a favorable effect of combining the refining procedure and the bleaching procedure. Compared with the traditional process, the treated fabric has better quality. The whole process achieves the advantages of continuous operation, low alkali discharge, water saving, energy saving, time saving and labor saving, thereby improving the production efficiency.
Description
Technical field
The present invention relates to the pre-treatment auxiliary agent and the application thereof of a cotton and BLENDED FABRIC thereof.Particularly, the present invention relates to one and be used for scouring and bleaching agent combination and the application thereof that boiling continuously of cotton and BLENDED FABRIC thereof floated operation.
Background technology
The pre-treatment of cotton and BLENDED FABRIC thereof generally need be carried out destarch, boiling-off and bleaching three road independent process and just can finish.The pre-treatment of printing and dyeing processing its objective is natural impurity of removing on the fabric and slurry, auxiliary agent and the contaminant that adds in fabrication processes.Also comprise simultaneously various finishes and the auxiliary agent removed on the chemical fibre raw material.By pre-treatment process, make fabric have excellent cleaner appearance, good whiteness and capillary effect, well gloss, feel, avoid fabric to surpass the strength damage of permission, to satisfy the basic demand of increasingly serious dyeing of textiles and stamp.
The defective of tradition pre-treatment process is well-known.The reform traditional pre-treatment process is the focus of auxiliary agent worker research and development always.
The focus of current research is:
1〉simplify shortened process, become three process and be two procedures or one procedure, reach efficient, at a high speed and short flow process, and continuous operation.
2〉caustic soda is a key element of traditional pre-treatment process.The caustic soda of getting rid of in various degree is the target of researching and developing always.
3〉dyeing and finishing enterprise is the rich and influential family of water consumption, power consumption, also is to pollute very serious industry.The water consumption of the operation of scouringing and bleaching be dyeing and finishing whole more than 60 percent, pollution level accounts for more than 70 percent.Therefore, economizing on water, saving energy and reduce the cost and reduce blowdown is the important prerequisite of reform traditional pre-treatment process.
4〉biology enzyme is effectively used in textile printing and dyeing.Practice shows that some biotechnology successfully is applied to the destarch operation of COTTON FABRIC.
5〉new technology is handled the quality of back fabric, and for example indexs such as whiteness, capillary effect, feel, brute force meet or exceed traditional handicraft, with the basic demand of the dyeing and printing that satisfies increasingly stringent.
The inventor proposes the innovation scheme of pre-treatment on the basis of a large amount of tests.This innovation scheme is:
1〉scouring and bleaching agent and the technique for applying thereof that provides cotton and BLENDED FABRIC pre-treatment continuous processing thereof to use realized boiling continuously and floated operation and unite two into one.
2〉destarch operation is finished by wide temperature destarch enzyme.
Practice shows, adopts above-mentioned pre-treatment innovation scheme can reach following effect.
1〉simplifies technological process, realize continued operation.
2〉abandon caustic soda, save water and energy.The discharge wastewater toxicity is little, is easy to handle.
3〉quality of processing back fabric significantly is better than traditional handicraft.
Boiling process and bleaching process are united two into one, and the patent of having delivered has:
1〉CN101037842 (2007) (Shanghai Qirui Textile Chemical Co., Ltd.)
This patent provides three auxiliary agent QR2010, QR2011 and QR2020 to be used for cold rolling heap low temperature pre-treatment process in long vehicle technology.The inventor thinks that on the basis of practice these three auxiliary agent preparations are complicated, and its component is used the solvent carbon tetrachloride of potassium hydroxide and forbidding.
These defectives have much room for improvement.
2〉CN101275363 (2008) (Southern Yangtze University)
This patent is carried out with bathing boiling-off and bleaching COTTON FABRIC with composite enzyme preparation.The data that patent is announced show that the variation of the composition of 5 kinds of enzymes in the composite enzyme preparation has a strong impact on the effect to boiling-off and bleaching.Enzyme is to the sensitiveness of temperature, PH, oxidant, with the reappearance of the whole technology of influence.In addition, this patent is applicable to COTTON FABRIC infusion process one one bath two-step technology, belongs to batch process.
Above-mentioned two pieces of patents are with bathing the solution that adopts on boiling-off and the bleaching process, and are different with the present invention.
The base this, the inventor discloses our above-mentioned pre-treatment innovation technology, the invention provides a scouring and bleaching agent combination and application thereof.
Summary of the invention
The invention provides a scouring and bleaching agent combination and application thereof, realize that boiling of continuous processing float operation and unite two into one.
Scouring and bleaching agent combination of the present invention comprises:
Absorption detergent 40～95 weight %
Surfactant 5～20 weight %
Water-soluble alkali 0～25 weight %
Synergist 0～25 weight % scourings and bleaching
Chelated dispersants 0～20 weight %
Gross weight with said composition is a benchmark.
The effect of scouring and bleaching agent combination of the present invention is:
1〉simplifies technological process, realize continued operation.
2〉abandon caustic soda, save water and energy.The discharge wastewater toxicity is little, is easy to handle.
3〉quality of processing back fabric is better than traditional handicraft.
The present invention also provides a kind of scouring and bleaching agent combination of the present invention to float application in the continuous pretreatment procedure boiling of fibre, cotton/chemical fiber blended fabrics of COTTON FABRIC and cotton/close.
The specific embodiment
A kind of scouring and bleaching agent combination, it comprises:
Absorption detergent 40～95 weight %
Surfactant 5～20 weight %
Water-soluble alkali 0～25 weight %
Synergist 0～25 weight % scourings and bleaching
Chelated dispersants 0～20 weight %
Gross weight with said composition is a benchmark.
One preferred embodiment in, scouring and bleaching agent combination of the present invention comprises:
Absorption detergent 50～90 weight %
Surfactant 5～20 weight %
Water-soluble alkali 5～20 weight %
Synergist 0～20 weight % scourings and bleaching
Chelated dispersants 0～20 weight %
Gross weight with said composition is a benchmark.
Another preferred embodiment in, scouring and bleaching agent combination of the present invention comprises:
Absorption detergent 50～75 weight %
Surfactant 10～15 weight %
Water-soluble alkali 5～20 weight %
Synergist 5～15 weight % scouring and bleaching
Chelated dispersants 5～10 weight %
Gross weight with said composition is a benchmark.
Scouring and bleaching agent combination of the present invention preferably is made up of absorption detergent, surfactant, water-soluble alkali, scouring and bleaching synergist and chelated dispersants basically.
Used absorption detergent comprises multi-silicate alkali metal or alkali salt, silicate base metal or alkali salt, metasilicic acid alkali metal or alkali salt, zeolite or their mixture in the scouring and bleaching agent combination of the present invention.
Above-mentioned multi-silicate alkali metal or alkali salt comprise two, three, four, five or six silicate base metal or alkali salts, two silicate base metal or alkali salts preferably, particularly preferably be stratiform two silicate base metal or alkali salts, most preferred layered sodium disilicate or sylvite.
Above-mentioned silicate base metal or alkali salt preferably include potassium silicate, sodium metasilicate or their mixture, the preferably potassium silicate of modulus M=1～3, particularly M=2 or sodium.
Above-mentioned metasilicic acid alkali metal or alkali salt comprise sodium metasilicate, potassium metasilicate or their mixture.Above-mentioned metasilicic acid alkali metal or alkali salt can be anhydrous or moisture, for example anhydrous sodium metasilicate and metasilicate pentahydrate sodium.
Absorption detergent used in the scouring and bleaching agent combination of the present invention preferably includes sodium disilicate, two potassium silicates, sodium metasilicate, potassium metasilicate, sodium metasilicate, potassium silicate or their mixture.
Used surfactant comprises anion surfactant, non-ionic surface active agent or their mixture in the scouring and bleaching agent combination of the present invention.
Above-mentioned surfactant preferably include be selected from below shown in one or more compounds:
Alkylbenzenesulfonate (LAS)
Alkylsulfonate (SAS)
C
mH
2m+1OSO
2M m＝12～18，
Fatty alcohol-polyoxyethylene ether phosphate (AOP)
C
pH
2p+1O(CH
2CH
2O)
rOPO
3M p＝8～18，r＝3～9，
Fatty alcohol polyoxyethylene ether sulfate (AES)
C
sH
2s+1O(CH
2CH
2O)
tOSO
3M s＝12～18，t＝2～5，
Aliphatic alcohol polyethenoxy ether carboxylate (AEC)
C
uH
2u+1O (CH
2CH
2O)
vCH
2COOM u=10～18, v=3～9, or
Fatty alcohol-polyoxyethylene ether (AEO)
C
xH
2x+1O(CH
2CH
2O)
yOH x＝10～18，y＝3～9，
M in each general formula is alkali metal or alkaline-earth metal, is preferably sodium, potassium or ammonium ion.
Particularly preferred surfactant comprises secondary alkyl C
14-16Sodium sulfonate or sylvite, fatty alcohol-polyoxyethylene ether AEO-9, fatty alcohol-polyoxyethylene ether TO-9, fatty alcohol-polyoxyethylene ether TO-7, isomerous tridecanol polyoxyethylene ether (5EO) phosphoric acid ester sodium, fatty alcohol-polyoxyethylene ether Softanol-70, fatty alcohol-polyoxyethylene ether Softanol-90, fatty alcohol C
12-14Polyoxyethylene ether (7EO) carboxylic acid sodium or sylvite, fatty alcohol-polyoxyethylene ether AEO-3 sodium sulphate or sylvite, neopelex or potassium or their mixture.
Water-soluble alkali used in the scouring and bleaching agent combination of the present invention comprises carbonic acid alkali metal salt, bicarbonate alkali metal salt or their mixture, preferably sodium carbonate, potash, sodium bicarbonate, saleratus or their mixture.
The used synergist of scouringing and bleaching comprises tetraacetyl ethylene diamine, perboric acid alkali metal salt, percarbonic acid alkali metal salt, dicyandiamide and their mixture in the scouring and bleaching agent combination of the present invention, preferably includes tetraacetyl ethylene diamine, sodium perborate, SODIUM PERCARBONATE, dicyandiamide and their mixture.
Used chelated dispersants comprises diethylene triamine pentamethylene phosphonic sodium or sylvite, acrylate copolymer, gluconic acid sodium salt or sylvite, natrium citricum or sylvite, maleic acid-acrylic acid copolymer or their mixture in the scouring and bleaching agent combination of the present invention.
The number-average molecular weight of aforesaid propylene acid polymer is generally 2000～7000, is preferably 4000～5000.The number-average molecular weight of above-mentioned maleic acid-acrylic acid copolymer is generally 5000～10000, is preferably 7000～8000.
The preparation technology of scouring and bleaching agent combination of the present invention is:
1, preparation manipulation carries out under the room temperature in the solid mixing kettle.
2, will adsorb detergent, water-soluble alkali, scouring and bleaching synergist and chelated dispersants be added in the solid mixing kettle, unlatching mixes.
3, under condition of stirring, slowly surfactant is joined in the said mixture, stir fully, mix.
4, discharging is finished product.
The concrete technological process that scouring and bleaching agent combination of the present invention is used on the continuous processing of scouringing and bleaching of cotton and BLENDED FABRIC is:
Grey cloth turns over cloth, and--singing,----banking up,--washing--is rolled dried and--is padded and boil bleaching liquor (containing the agent of scouringing and bleaching)--decatize--washing--oven dry--mercerising--washing---oven dry to pad desizing liquid.
Padding the pick-up that boils bleaching liquor is 80-90%, pads the back under 95-100 ℃ of condition decatize 40-60 minute, uses the hot water wash 2-3 road more than 95 ℃ subsequently, 80-85 ℃ hot water wash 2-3 road, 55-65 ℃ of Warm Wash 1 road.
The present invention's concrete effect that agent is used of scouringing and bleaching:
1, alleviate the fibre damage of handling the back fabric, avoid the broken hole fault to take place.
2, cotton seed hulls removal effect and the whiteness and the capillary effect of fabric increase than traditional handicraft after handling.
3, realize low alkali discharging, reduce containing of waste water of dirty rate and discharge capacity greatly, thereby alleviate the processing cost of waste water.
4, water, energy, time saving, save artificial, thereby enhance productivity, reduce cost.
Embodiment
Embodiments of the invention comprise the composition of scouring and bleaching agent combination and the effect of the scouring and bleaching agent combination of preparation and these different compositions.
Used chemicals is the commercial goods in the embodiment of the invention.Main medicine is as follows:
Layered sodium disilicate, available from Chengdu, Sichuan with devote every effort to help agent Co., Ltd.
The sodium metasilicate of modulus M=2.0 or potassium are available from chemical plant, river rising in Ningxia and flowing into central Shaanxi, Jiashan, Zhejiang.
Anhydrous sodium metasilicate or metasilicate pentahydrate sodium are available from the prosperous and powerful chemical company in Shangyu, Zhejiang.
Zeolite is revived new material factory available from Shanghai.
Secondary alkyl C
14-16Sodium sulfonate SAS60 is available from Clariant.
Isomerous tridecanol polyoxyethylene ether TO-7 or TO-9 are available from Basf.
Fatty alcohol-polyoxyethylene ether Softanol-70 or Softanol-90 are available from Japanese catalyst chemical industry Co., Ltd.
Acrylate copolymer 6100 or maleic acid-acrylic acid copolymer CP-5 are available from Rohm andHaas.
Tetraacetyl ethylene diamine, sodium perborate, SODIUM PERCARBONATE are available from Zhejiang Jingke Chemical Co., Ltd.
Embodiment 1
Table 1
Embodiment 2
Table 2
Embodiment 3
Table 3
Embodiment 4
Table 4
Embodiment 5
Table 5
Embodiment 6
Table 6
Embodiment 7
Table 7
Embodiment 8
Table 8
Embodiment 9
Table 9
Embodiment 10
Table 10
Embodiment 11
Table 11
Scouring and bleaching agent combination application example of the present invention
Above-mentioned scouring and bleaching agent combination is applied in the continuous pre-treatment process of cotton poplin cloth cloth, concrete technology is as follows:
--banking up,--washing--is rolled dried and--is padded and boil bleaching liquor (containing the agent of scouringing and bleaching)--decatize--washing---oven dry to pad desizing liquid.
The test desizing adopts wide temperature width of cloth amylase to handle, and banks up 1 hour in 60 ℃ of steam boxs after padding desizing liquid.Boil the bleaching liquor prescription and be H
2O
2(100%) 9g/l; Scouring and bleaching agent combination 25g/l among the embodiment.Padding the pick-up that boils bleaching liquor is 90%, pads back decatize 50 minutes in 100 ℃ of steam boxs, uses hot water wash 2 roads more than 95 ℃ subsequently, 80-85 ℃ hot water wash 2 roads, and cold wash is used in 55-65 ℃ of Warm Wash 1 road at last, oven dry.
Dui Ying traditional pre-treatment process is with it:
--banking up,--washing--rolls the----decatize--washing------decatize--washing---oven dry of padding the oxygen bleaching liquor of padding boiling house solution dried to pad desizing liquid.
Handling the back fabric test adopts following method to carry out.
Whiteness GB/T8425-1987
Capillary effect FZ/T01071-1999
TEAR STRENGTH GB/T3917.2-1997
Destarch progression adopts I
2-KI reagent method is measured, with the grading of TEGEWA colour atla,
1 grade the poorest, and 9 grades best
Weight-loss ratio adopts grammes per square metre method test cotton to handle the weight-loss ratio of front and back
The effect of handling fabric sees Table 12.
Table 12
By table 12 as seen, adopt scouring and bleaching agent combination of the present invention and technique for applying, the whiteness of fabric, capillary effect are all than the obvious improve of traditional handicraft after handling; The weightlessness of handling the back fabric is few, and strength damage is little.Can satisfy the high requirement of road, back dyeing process.
Adopt the composition of scouringing and bleaching of the embodiment of the invention 5, put into practice application result under the scale and cost analysis and see Table 13 and table 14 bigger.
Table 13
* the price of steam is in 200 yuan/ton
By table 14 as seen, adopt scouring and bleaching agent combination of the present invention and technique for applying, compare, consume auxiliary agent and steam cost and reduce by 13.3% with traditional pre-treatment process.Its wastewater discharge reduces about 1/4, and the COD value of waste discharge significantly descends and reaches about 50%.This shows that scouring and bleaching agent combination of the present invention and technique for applying have the characteristics of saving energy, lowering energy consumption and reducing pollutants discharge.
Claims (10)
1. scouring and bleaching agent combination, it comprises:
Absorption detergent 40～95 weight %
Surfactant 5～20 weight %
Water-soluble alkali 0～25 weight %
Synergist 0～25 weight % scourings and bleaching
Chelated dispersants 0～20 weight %
Gross weight with said composition is a benchmark.
2. scouring and bleaching agent combination as claimed in claim 1 is characterized in that it comprises:
Absorption detergent 50～90 weight %
Surfactant 5～20 weight %
Water-soluble alkali 5～20 weight %
Synergist 0～20 weight % scourings and bleaching
Chelated dispersants 0～20 weight %
Gross weight with said composition is a benchmark.
3. scouring and bleaching agent combination as claimed in claim 1 or 2, it is characterized in that described absorption detergent comprises multi-silicate alkali metal or alkali salt, silicate base metal or alkali salt, metasilicic acid alkali metal or alkali salt, zeolite or their mixture.
4. scouring and bleaching agent combination as claimed in claim 3 is characterized in that, described absorption detergent comprises sodium disilicate, two potassium silicates, sodium metasilicate, potassium metasilicate, sodium metasilicate, potassium silicate or their mixture.
5. scouring and bleaching agent combination as claimed in claim 1 or 2 is characterized in that, described surfactant comprises anion surfactant, non-ionic surface active agent or their mixture.
6. scouring and bleaching agent combination as claimed in claim 5 is characterized in that, described surfactant comprise be selected from below shown in one or more compounds:
Alkylbenzenesulfonate
n＝12～16，
Alkylsulfonate
C
mH
2m+1OSO
2M m＝12～18，
Fatty alcohol-polyoxyethylene ether phosphate
C
pH
2p+1O(CH
2CH
2O)
rOPO
3M p＝8～18，r＝3～9，
Fatty alcohol polyoxyethylene ether sulfate
C
sH
2s+1O(CH
2CH
2O)
tOSO
3M s＝12～18，t＝2～5，
Aliphatic alcohol polyethenoxy ether carboxylate
C
uH
2u+1O (CH
2CH
2O)
vCH
2COOM u=10～18, v=3～9, or
Fatty alcohol-polyoxyethylene ether
C
xH
2x+1O(CH
2CH
2O)
yOH x＝10～18，y＝3～9，
M in each general formula is alkali metal or alkaline-earth metal, is preferably sodium, potassium or ammonium ion.
7. scouring and bleaching agent combination as claimed in claim 1 or 2, it is characterized in that, described water-soluble alkali comprises carbonic acid alkali metal salt, bicarbonate alkali metal salt or their mixture, preferably sodium carbonate, potash, sodium bicarbonate, saleratus or their mixture.
8. scouring and bleaching agent combination as claimed in claim 1 or 2, it is characterized in that, the described synergist of scouringing and bleaching comprises tetraacetyl ethylene diamine, perboric acid alkali metal salt, percarbonic acid alkali metal salt, dicyandiamide and their mixture, preferably includes tetraacetyl ethylene diamine, sodium perborate, SODIUM PERCARBONATE, dicyandiamide and their mixture.
9. scouring and bleaching agent combination as claimed in claim 1 or 2, it is characterized in that described chelated dispersants comprises diethylene triamine pentamethylene phosphonic sodium or sylvite, acrylate copolymer, gluconic acid sodium salt or sylvite, natrium citricum or sylvite, maleic acid-acrylic acid copolymer or their mixture.
10. the described scouring and bleaching agent combination of root a tree name claim 1-9 floats application in the continuous pretreatment procedure boiling of fibre, cotton/chemical fiber blended fabrics of COTTON FABRIC and cotton/close.
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Application publication date: 20101229 |