CN114875654B - Pretreatment process for desizing, boiling and bleaching low-strength-loss cold pad-batch of cotton fabric - Google Patents
Pretreatment process for desizing, boiling and bleaching low-strength-loss cold pad-batch of cotton fabric Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 112
- 239000004744 fabric Substances 0.000 title claims abstract description 111
- 230000008569 process Effects 0.000 title claims abstract description 73
- 229920000742 Cotton Polymers 0.000 title claims abstract description 72
- 238000009990 desizing Methods 0.000 title claims abstract description 46
- 238000004061 bleaching Methods 0.000 title claims abstract description 39
- 238000009835 boiling Methods 0.000 title claims description 7
- 238000009991 scouring Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 84
- 230000000694 effects Effects 0.000 claims description 60
- 238000005406 washing Methods 0.000 claims description 51
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 46
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000012224 working solution Substances 0.000 claims description 19
- 238000010025 steaming Methods 0.000 claims description 18
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 claims description 17
- 239000003513 alkali Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 13
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 9
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 239000002738 chelating agent Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000004753 textile Substances 0.000 description 32
- 238000012512 characterization method Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 238000010998 test method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- -1 potassium hydrogen peroxymonosulfate compound salt Chemical class 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000012190 activator Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 150000004965 peroxy acids Chemical class 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000012747 synergistic agent Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 1
- 102100040255 Tubulin-specific chaperone C Human genes 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000004696 coordination complex Chemical group 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 108010093459 tubulin-specific chaperone C Proteins 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/16—Multi-step processes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/70—Multi-step processes
- D06L4/75—Multi-step processes combined with cleaning or washing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a cotton fabric desizing, scouring and bleaching low-strength-loss cold pad-batch pretreatment process, which belongs to the field of cotton fabric pretreatment. The method can reduce the strong damage of the fabric while achieving high whiteness, and the whiteness of the characteristic value of the treated fabric can reach 90 percent, and the strong damage rate is below 4 percent; meanwhile, the process has the advantages of low alkalinity of waste liquid, low energy consumption, short treatment flow, simple equipment, convenient operation and high production efficiency, can be applied to industrialized production and processing, has certain economic benefit, and accords with the concept of green economy.
Description
Technical Field
The invention belongs to the field of cotton textile pretreatment, and particularly relates to a cotton fabric desizing, boiling and bleaching low-strength-loss cold pad-batch pretreatment process.
Background
Cotton fibers are widely favored as an important component of natural fibers, having unique comfort, breathability, and softness properties. The natural cotton fiber contains a plurality of impurities and natural pigments, and has serious influence on subsequent processing, so that the natural cotton fiber must be removed through pretreatment to meet the processing requirements of bleached products and vividness of light-colored figured cloth. The pretreatment process comprises desizing, scouring and bleaching processes, wherein the three processes are wet heat treatment processing, various chemical additives and caustic soda are usually added, mechanical tension is applied under the heating condition, the process is longer, the consumption of energy and water is larger, a large amount of waste water and waste gas are generated, the alkalinity of the waste water is high, the color is deep, the biochemistry is poor (COD value is high), and the concept of current green textile is not met. In the production and processing, three steps of desizing, scouring and bleaching are performed in one step or two steps, so that the process flow is simplified, the water and energy consumption is reduced, and the method is environment-friendly and has economical efficiency.
Currently, printing and dyeing enterprises mostly select two auxiliary agents of caustic soda and hydrogen peroxide for pretreatment procedures, and the pretreatment procedures have the disadvantages of short processing time, high whiteness of treated fabrics, difficult yellowing, small pollution and wide application, but the conventional high-temperature pretreatment process is usually carried out under the condition of high-temperature concentrated alkali (98 ℃ and pH=11-12), and has the disadvantages of high energy consumption, high treatment bath alkalinity, large fiber damage and the like. Therefore, researchers have aimed at lowering the pretreatment temperature and have introduced a proper oxygen bleach activator or a metal enzyme-like catalyst into the pretreatment system to keep the hydrogen peroxide active at a low temperature for pretreatment. The oxygen bleach activator has a chemical structure comprising a carbonyl group having a carbon atom capable of reacting with HOO - Nucleophilic substitution reaction is carried out to generate corresponding peroxy acid, and the peroxy acid has higher oxidability, can overcome the reaction activation energy and realize the scouring and bleaching effects at low temperature. Oxygen bleach activators are of a wide variety, all of which are capable of reducing the temperature required for scouring and bleaching while reducing fabric damage. NOBS, TBCC, TAED is typical in current research. The metal enzyme imitation catalyst is a metal complex with similar enzyme structure, mainly has cyclic polyamine type metal coordinationThe catalyst has the trace and high-efficiency catalytic performance of enzyme, stable chemical structure and H-coordination ability 2 O 2 The active species with high oxidation activity can react with the pigment substrate under milder conditions, thereby achieving the purpose of low-temperature scouring and bleaching. The low-temperature scouring and bleaching pretreatment process reduces the treatment temperature and the strong damage to the fabric. However, the currently researched oxygen bleaching activators have the defects of high cost, large compounding difficulty, micro toxicity, low solubility, potential explosion risk and the like, and are difficult to apply to industry; meanwhile, industrial application of metal enzyme imitation catalysts is also questionable, most of synthesis processes are complex and have long period, production cost is high, equipment needs to be renovated, and the metal enzyme imitation catalysts are not suitable for large-scale application and production.
In actual production and processing, a cold pad-batch pretreatment technology is also commonly used, and the method is a processing mode that cotton fabrics are piled for more than 18-24 hours at room temperature (20-40 ℃) after being padded with pretreatment working solution, and then are subjected to hot alkali treatment, steaming and efficient water washing. Compared with the high-temperature pretreatment process, the cold pad-batch pretreatment process has the advantages that the required temperature is low, the alkali concentration is higher, the penetration of the alkali bleaching liquid to the cotton grey cloth is more difficult, and a proper special auxiliary agent is required to be selected to help the penetration of the concentrated alkali bleaching liquid at normal temperature. Meanwhile, the existing conventional cold pad-batch pretreatment process also has the defects that the caustic soda concentration is higher (50 g/L), the whiteness of the prepared cotton fabric is lower (about 78), the fabric strength damage is slightly larger (the strength retention rate is only about 88 percent), and the capillary effect is lower (9 cm & 30 min) -1 ) The desizing rating is required to be further improved, and the quality stability and whiteness stability are poor (yellowing of fabrics after sun treatment) and the like are various disadvantages.
Disclosure of Invention
[ problem ]
The existing conventional cold pad-batch pretreatment process has the defects of higher caustic soda concentration, lower whiteness of the prepared cotton fabric, high strong damage to the fabric, lower capillary effect, further improvement of desizing rating, poor quality stability and whiteness stability (yellowing of the fabric after sun-curing treatment) and the like.
[ technical solution ]
Aiming at the technical problems, the first aim of the invention is to provide a cotton fabric desizing, scouring and bleaching low-strength-loss cold pad-batch pretreatment process, which comprises the following steps:
(1) Padding: padding the singed cotton grey cloth in a pretreatment working solution, wherein the pretreatment working solution consists of hydrogen peroxide, sodium hydroxide, potassium hydrogen peroxymonosulfate composite salt, sodium sulfamate, calcium sulfate, a stabilizer, a chelating agent and a penetrating agent, and the mass ratio of the potassium hydrogen peroxymonosulfate composite salt to the sodium sulfamate to the calcium sulfate to the hydrogen peroxide to the sodium hydroxide is 6 (6-15): 9-15): 80:20;
(2) Winding and stacking: rolling and stacking the padded grey cloth for 24 hours at the stacking temperature of 30 ℃;
(3) Alkali washing and full water washing;
(4) Steaming: steaming after the scouring liquor is fed;
(5) Washing and drying.
As a preferred embodiment of the present invention, the concentration of the potassium hydrogen peroxymonosulfate complex salt in the pretreatment working fluid is 6g/L.
As a preferred embodiment of the present invention, the concentration of sodium sulfamate in the pretreatment working fluid is 6 to 15g/L; further preferably 6g/L.
As a preferred embodiment of the present invention, the concentration of calcium sulfate in the pretreatment working fluid is 9 to 15g/L; further preferably 9g/L.
As a preferred embodiment of the present invention, the concentration of hydrogen peroxide in the pretreatment working fluid is 80g/L.
As a preferred embodiment of the present invention, the concentration of sodium hydroxide in the pretreatment working fluid is 20g/L.
In a preferred embodiment of the present invention, the stabilizer in the pretreatment working fluid includes at least one of sodium metasilicate and sodium pyrophosphate.
As a preferred embodiment of the present invention, in the pretreatment working fluid, the chelating agent includes at least one of citric acid and ethylenediamine tetraacetic acid (EDTA).
In a preferred embodiment of the present invention, the penetrating agent in the pretreatment working fluid includes at least one of penetrating agent JFC, fatty alcohol-polyoxyethylene ether MOA-3, and Taigu oil.
In a preferred embodiment of the present invention, the concentration of the stabilizer in the pretreatment working fluid is 4g/L, the concentration of the chelating agent is 2g/L, and the concentration of the penetrating agent is 4g/L.
As a preferred embodiment of the invention, the padding in the step (1) adopts two padding and two padding, and the padding liquid rate is 100%.
As a preferred embodiment of the present invention, the alkaline washing and the full water washing in the step (3) are specifically: washing with water at 95 ℃ for 1 time, washing with alkali at 98 ℃ for 3 times, washing with water at 98 ℃ for 1 time, and washing with water at room temperature for 1 time; alkaline washing liquid used for alkaline washing: scouring agent RF 3g/L and caustic soda 9g/L.
In the step (4), the room temperature scouring liquor is fed, and steaming is carried out for 25 minutes at 98 ℃; the scouring liquor comprises the following components: scouring agent RF 3g/L.
As a preferred implementation mode of the invention, the cotton fabric desizing, boiling and bleaching low-strength-loss cold pad-batch pretreatment process is a two-step process of alkali washing, steaming and water washing after cold pad-batch, and the process comprises the following steps: the working solution is prepared by (1): preparing pretreatment working solution according to the formula; (2) padding: padding the singed cotton grey cloth in pretreatment working solution, wherein the padding rate is 100%; (3) rolling and stacking: rolling and stacking the padded grey cloth; (4) alkali washing and full water washing: washing with water at 95 ℃ for 1 time, washing with alkali at 98 ℃ for 3 times (scouring agent RF 3 g/L+caustic soda 9 g/L), washing with water at 98 ℃ for 1 time, and washing with water at room temperature for 1 time; (5) steaming: taking materials at room temperature (scouring agent RF 3 g/L), steaming at 98 ℃ for 25min; (6) washing and drying: washing with water at 80 deg.c for 5 times, washing with water at room temperature for 2 times, and stoving.
The second aim of the invention is to provide the cotton fabric prepared by the process, wherein the strong retention rate of the cotton fabric is not less than 96%, the whiteness is not less than 90, and the capillary effect is not less than 11cm & 30min -1 Desizing ratings were above 7.
The third purpose of the invention is to provide a cotton fabric desizing, scouring and bleaching low-strength-loss cold pad-batch pretreatment working solution which consists of hydrogen peroxide, sodium hydroxide, potassium hydrogen peroxymonosulfate compound salt, sodium sulfamate, calcium sulfate, stabilizing agent, chelating agent and penetrating agent, wherein the mass ratio of the sodium hydroxide is 6:6-15:9-15:80:20.
[ beneficial effects ]
The cotton fabric desizing, scouring and bleaching low-strength-loss cold pad-batch pretreatment process provided by the invention is based on the cold pad-batch pretreatment process, the formula of pretreatment working solution is optimized through screening, and the effect of cold pad-batch pretreatment on cotton fabric is improved based on the synergistic effect of specific proportions of hydrogen peroxide, sodium hydroxide, potassium hydrogen peroxymonosulfate compound salt, sodium sulfamate, calcium sulfate, stabilizer, chelating agent and penetrating agent on the cotton fabric, and the purposes of efficient impurity removal and bleaching are further achieved by combining alkaline washing and short steaming. The cotton fabric treated by the process can realize the synchronous realization: high whiteness, low strength loss, high capillary effect, desizing rating, improved whiteness stability and other comprehensive properties; meanwhile, the process has the advantages of low alkalinity of waste liquid, low energy consumption, short treatment flow, simple equipment, convenient operation and high production efficiency, and can be applied to industrialized production and processing:
(1) High whiteness, low strength loss: the whiteness of the treated cotton fabric is excellent, the whiteness characteristic value is more than 90, and the cotton fabric is not easy to yellow; the strong damage is lower, the strong retention rate is more than 96 percent (the strong damage rate is below 4 percent); the whiteness and the strength loss are obviously superior to those of the conventional cold pad-batch pretreatment process;
(2) The scouring effect is excellent: according to the invention, the efficient alkaline washing and steaming procedures are added in the pretreatment process, the refining effect and stability of the fabric are improved through the composite improvement of the process flow, and the treated fabric has excellent wetting property, good desizing effect and high reproducibility while high whiteness and low strength loss are maintained.
(3) High hair effect: after the treatment by the process of the invention, the hair effect is not lower than 11cm & 30min -1 。
(5) The desizing effect is good: after the treatment by the process, the desizing rating is above 7 grades.
(4) Economic benefit: the invention is based on the cold-rolling stack pretreatment technology, and has the advantages of lower required temperature, low energy consumption, short treatment flow, simple equipment, convenient operation and high production efficiency; meanwhile, the added auxiliary agents (potassium hydrogen peroxymonosulfate compound salt, sodium sulfamate and calcium sulfate) are pollution-free and low-cost agents, the consumption of sodium hydroxide is lower than that of the conventional process, the alkalinity of working solution is low, certain economic benefit is achieved, and the environment-friendly and economic concepts are also met.
Detailed Description
The present invention will be further described with reference to examples, but the scope of the invention is not limited to the examples.
Example 1:
the invention provides a cotton fabric desizing, scouring and bleaching low-strength-loss cold pad-batch pretreatment process, which comprises the following specific processes:
(1) Preparing a working solution: preparing pretreatment working solution according to a process prescription, wherein the process prescription comprises the following steps: 80g/L of hydrogen peroxide, 20g/L of sodium hydroxide, 6g/L of potassium hydrogen peroxymonosulfate, 6g/L of sodium sulfamate, 9g/L of calcium sulfate, 4g/L of stabilizer, 2g/L of chelating agent and 4g/L of penetrating agent.
(2) Padding: and padding the singed cotton grey cloth in pretreatment working solution, wherein the padding rate is 100 percent.
(3) Winding and stacking: rolling and stacking the padded grey cloth for 24 hours at the stacking temperature of 30 ℃.
(4) Alkali washing and full water washing: washing with water at 95 ℃ for 1 time, washing with alkali at 98 ℃ for 3 times (scouring agent RF 3 g/L+caustic soda 9 g/L), washing with water at 98 ℃ for 1 time, and washing with water at room temperature for 1 time.
(5) Steaming: room temperature water feeding (scouring agent RF 3 g/L) to 98 ℃ steaming for 25min.
(6) Washing and drying: washing with water at 80 deg.c for 5 times, washing with water at room temperature for 2 times, and stoving.
Example 2:
the potassium hydrogen peroxymonosulfate compound salt can be used as a synergistic agent to effectively improve the whiteness of the pretreated fabric, so that the influence of the concentration of the potassium hydrogen peroxymonosulfate compound salt on the pretreatment effect of the cotton fabric needs to be explored.
The pretreatment process of the cotton fabric desizing, scouring and bleaching low-strength cold pad-batch according to the reference example 1 is different only in that the process prescription of the pretreatment working solution is adjusted, the concentration of the potassium hydrogen peroxymonosulfate compound salt is adjusted to be 0-10 g/L, and other components and concentrations are kept unchanged.
The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 1.
TABLE 1 influence of Potassium hydrogen peroxymonosulfate Complex salt concentration on Pre-treatment Effect of cotton fabrics
| Potassium hydrogen peroxymonosulfate complex salt concentration/g.L -1 | 0 | 2 | 4 | 6 | 8 | 10 |
| Whiteness/% | 81.9 | 83.7 | 86.3 | 90.2 | 90.8 | 91.4 |
| Strong retention/% | 96.87 | 96.24 | 95.78 | 96.45 | 94.67 | 93.24 |
| Hair effect/cm.30min -1 | 9.8 | 10.4 | 10.9 | 11.3 | 11.4 | 11.6 |
| Desizing rating/grade | 7 | 7 | 7 | 7 | 7 | 7 |
Example 3:
sodium sulfamate as a fiber protector can reduce the strong damage of the pretreated fabric, so that the influence of the concentration of sodium sulfamate on the pretreatment effect of the cotton fabric needs to be explored.
The pretreatment process of the cotton fabric desizing, scouring and bleaching low-strength cold pad-batch according to the reference example 1 is different only in that the process prescription of the pretreatment working solution is adjusted, the concentration of sodium sulfamate is adjusted to be 0-15 g/L, and other components and concentrations are kept unchanged.
The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured as shown in Table 2.
TABLE 2 Effect of sodium sulfamate concentration on pretreatment effect of cotton fabrics
| Sodium sulfamate concentration/g.L -1 | 0 | 3 | 6 | 9 | 12 | 15 |
| Whiteness/% | 89.3 | 89.6 | 90.2 | 90.4 | 90.7 | 90.9 |
| Strong retention/% | 92.24 | 94.78 | 96.45 | 96.67 | 96.98 | 97.23 |
| Hair effect/cm.30min -1 | 10.8 | 11 | 11.3 | 11.4 | 11.6 | 11.7 |
| Desizing rating/grade | 7 | 7 | 7 | 7 | 7 | 7 |
Example 4:
the calcium sulfate can be used as an oxygen bleaching slow release agent to form a slow release system by synergistic action with a stabilizer, and the decomposition rate of hydrogen peroxide is controlled so as to reduce the strong damage to the treated cotton fabric, so that the influence of the concentration of the calcium sulfate on the pretreatment effect of the cotton fabric needs to be explored.
The pretreatment process of the cotton fabric desizing, scouring and bleaching low-strength cold pad-batch according to the reference example 1 is different only in that the process prescription of the pretreatment working solution is adjusted, the concentration of calcium sulfate is adjusted to be 0-15 g/L, and other components and concentrations are kept unchanged.
The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 3.
TABLE 3 influence of calcium sulfate concentration on the pretreatment effect of cotton fabrics
| Calcium sulfate concentration/g.L -1 | 0 | 3 | 6 | 9 | 12 | 15 |
| Whiteness/% | 88.9 | 89.8 | 90.1 | 90.2 | 90.5 | 90.7 |
| Strong retention/% | 91.23 | 93.12 | 94.87 | 96.45 | 96.57 | 96.76 |
| Hair effect/cm.30min -1 | 10.7 | 10.8 | 11.1 | 11.3 | 11.4 | 11.8 |
| Desizing rating/grade | 7 | 7 | 7 | 7 | 7 | 7 |
Example 5:
the hydrogen peroxide is the most main bleaching component in the cold pad-batch pretreatment system, has obvious effect on fabric bleaching, and has the effect of destroying the conjugated system of natural pigment in cotton fibers so as to achieve the purposes of cotton fabric decolorization and bleaching, so that the influence of the concentration of the hydrogen peroxide on the cotton fabric pretreatment effect needs to be explored.
The pretreatment process of the cotton fabric desizing, scouring and bleaching low-strength cold pad-batch according to the reference example 1 is different only in that the process prescription of the pretreatment working solution is adjusted, the concentration of hydrogen peroxide is adjusted to be 20-120 g/L, and other components and concentrations are kept unchanged.
The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 4.
TABLE 4 Effect of Hydrogen peroxide concentration on pretreatment effect of cotton fabrics
| Hydrogen peroxide concentration/g.L -1 | 20 | 40 | 60 | 80 | 100 | 120 |
| Whiteness/% | 77.9 | 82.6 | 86.2 | 90.2 | 91.5 | 92.4 |
| Strong retention/% | 98.23 | 97.56 | 96.87 | 96.45 | 94.32 | 91.27 |
| Hair effect/cm.30min -1 | 9.2 | 9.8 | 10.5 | 11.3 | 11.8 | 12.7 |
| Desizing rating/grade | 6 | 6～7 | 7 | 7 | 7 | 7 |
Example 6:
the concentration of sodium hydroxide in the pretreatment system can influence the amount of HOO-ionized by hydrogen peroxide, thereby influencing the treatment effect of the fabric, so the influence of the concentration of sodium hydroxide on the pretreatment effect of the cotton fabric is explored.
The pretreatment process of the cotton fabric desizing, scouring and bleaching low-strength cold pad-batch according to the reference example 1 is different only in that the process prescription of the pretreatment working solution is adjusted, the concentration of sodium hydroxide is adjusted to be 10-60 g/L, and other components and concentrations are kept unchanged.
The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 5.
TABLE 5 Effect of sodium hydroxide concentration on pretreatment effect of cotton fabrics
| Sodium hydroxide concentration/g.L -1 | 10 | 20 | 30 | 40 | 50 | 60 |
| Whiteness/% | 88.8 | 90.2 | 90.8 | 91.2 | 91.4 | 91.8 |
| Strong retention/% | 96.87 | 96.45 | 93.77 | 91.56 | 89.69 | 87.12 |
| Hair effect/cm.30min -1 | 10.7 | 11.3 | 12.2 | 12.6 | 13.4 | 13.8 |
| Desizing rating/grade | 6～7 | 7 | 7 | 7 | 7～8 | 7～8 |
Example 7:
the stacking temperature can directly influence the decomposition rate of hydrogen peroxide, so that the whiteness and strength of the pretreated fabric are influenced, and therefore, the influence of the stacking temperature on the cotton fabric treatment effect needs to be explored.
Referring to example 1, the stacking temperature was selected to be 20 to 40℃and the remaining conditions were unchanged. The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 6.
TABLE 6 influence of the stacking temperature on the pretreatment effect of cotton fabrics
| Stacking temperature/°c | 20 | 25 | 30 | 35 | 40 |
| Whiteness/% | 86.1 | 88.7 | 90.2 | 91.8 | 92.6 |
| Strong retention/% | 97.32 | 96.88 | 96.45 | 94.12 | 91.57 |
| Hair effect/cm.30min -1 | 9.7 | 10.4 | 11.3 | 11.8 | 12.2 |
| Desizing rating/grade | 6～7 | 7 | 7 | 7 | 7 |
Example 8:
in the pretreatment process, the fabric reacts with bleaching components generated by decomposition of hydrogen peroxide, and the length of the reaction time can directly influence the pretreatment effect of the fabric.
Referring to example 1, the stacking time was selected to be 12 to 36 hours, and the remaining conditions were unchanged. The fabric treated by the method is referred to the standard GB/T8424.2-2001 "Instrument evaluation method for relative whiteness of textile color fastness test" of GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 7.
TABLE 7 Effect of the stacking time on the pretreatment effect of cotton fabrics
| Stacking time/h | 12 | 18 | 24 | 30 | 36 |
| Whiteness/% | 83.6 | 87.8 | 90.2 | 90.8 | 91.5 |
| Strong retention/% | 97.05 | 96.78 | 96.45 | 94.27 | 92.13 |
| Hair effect/cm.30min -1 | 9.8 | 10.5 | 11.3 | 12 | 12.6 |
| Desizing rating/grade | 6 | 6 | 7 | 7 | 7 |
Comparative example 1:
based on the pretreatment process of the cotton fabric desizing, boiling and bleaching and low-strength-loss cold pad-batch, the treatment effects of different alkaline washing and steaming modes after the cold pad-batch process are compared.
Referring to example 1, the process was compared with the effect of the process without steaming (removal procedure 5), without caustic wash and steaming (removal procedure 4-5), and the treated fabrics were evaluated with reference to the standard GB/T8424.2-2001 "Instrument assessment method for relative whiteness of textile colour fastness test", GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 8.
TABLE 8 Effect of alkaline washing/steaming procedures on the treatment effect of cotton fabrics
Comparative example 2:
the effect of the cotton fabric treated by the desizing, boiling and bleaching low-strength-loss cold pad-batch pretreatment process and the high-temperature scouring and bleaching pretreatment process of the cotton fabric in the embodiment 1 of the invention is compared. Wherein:
the high-temperature scouring and bleaching pretreatment process comprises the following steps: 27.5% hydrogen peroxide 35g/L, sodium hydroxide 4g/L, sodium silicate 4g/L, penetrant JFC 4g/L, bath ratio 1:20, treating at 98 ℃ for 60min, fully washing with water and drying.
Reference standard GB/T8424.2-2001 "Instrument assessment method for relative whiteness of textile color fastness test", GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 9.
Table 9 comparison of effect after the fabrics are treated by the decolouring bleaching low-strength cold pad-batch pretreatment process and the high-temperature scouring bleaching pretreatment process
Comparative example 3:
the effect of the cotton fabric desizing, scouring, bleaching and low-strength-loss cold pad-batch pretreatment process of the embodiment 1 of the invention is compared with that of the cotton fabric treated by the conventional cold pad-batch pretreatment process. Wherein:
the conventional cold-rolling stack pretreatment process comprises the following steps: 80g/L of hydrogen peroxide, 50g/L of sodium hydroxide, 15g/L of sodium silicate, 4g/L of penetrating agent JFC, and stacking for 24 hours at 30 ℃, washing with hot water twice, washing with cold water twice, and drying.
Reference standard GB/T8424.2-2001 "Instrument assessment method for relative whiteness of textile color fastness test", GB/T3923.1-2013 "part 1 of textile fabric tensile Property: measurement of breaking Strength and elongation at break (bar sample method), FZ/T01071-2008 "test method for capillary effect of textile", desizing rating (color card method), and characterization indexes of treated cotton fabrics were measured and shown in Table 10.
Table 10 comparison of effects after the fabrics were treated by the low-strength cold pad-batch pretreatment process and the conventional cold pad-batch pretreatment process
In summary, the invention provides a low-strength-loss desilting and scouring pretreatment method for cotton fabrics, which is based on a cold pad-batch pretreatment process, uses hydrogen peroxide, sodium hydroxide, a synergistic agent (potassium hydrogen peroxymonosulfate compound salt), a fiber protecting agent (sodium sulfamate) and an oxygen bleaching slow release agent (calcium sulfate) to carry out cold pad-batch pretreatment on the cotton fabrics, and optimizes to obtain the mass ratio of the potassium hydrogen peroxymonosulfate compound salt, the sodium sulfamate, the calcium sulfate, the hydrogen peroxide and the sodium hydroxide of 6 (6-15): (9-15): 80:20, controls the pad-batch temperature of 30 ℃ and the pad-batch time of 24 hours; then alkali washing and short steaming are carried out to achieve the aim of high-efficiency impurity removal and bleaching; the cotton fabric prepared by the process has the strong retention rate of not less than 96 percent, the whiteness of not less than 90 and the capillary effect of not less than 11cm & 30min -1 Desizing ratings were above 7. The process can reduce the strong damage of the fabric while achieving high whiteness; the process has the advantages of low alkalinity of waste liquid, low energy consumption, short treatment flow, simple equipment, convenient operation and high production efficiency, can be applied to industrialized production and processing, has certain economic benefit, and also accords with the concept of green economy.
While the invention has been described with reference to the preferred embodiments, it is not limited thereto, and various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A cotton fabric desizing, boiling and bleaching low-strength-loss cold pad-batch pretreatment process is characterized by comprising the following steps of:
(1) Padding: padding the singed cotton grey cloth in a pretreatment working solution, wherein the pretreatment working solution consists of hydrogen peroxide, sodium hydroxide, potassium hydrogen peroxymonosulfate composite salt, sodium sulfamate, calcium sulfate, a stabilizer, a chelating agent and a penetrating agent, and the mass ratio of the potassium hydrogen peroxymonosulfate composite salt to the sodium sulfamate to the calcium sulfate to the hydrogen peroxide to the sodium hydroxide is 6:6:15:9:15:80:20;
(2) Winding and stacking: rolling and stacking the padded grey cloth for 24 hours at the stacking temperature of 30 ℃;
(3) Alkali washing and full water washing;
(4) Steaming: steaming after the scouring liquor is fed;
(5) Washing and drying.
2. The process according to claim 1, wherein the concentration of the potassium hydrogen peroxymonosulfate complex salt in the pretreatment working fluid is 6g/L.
3. The process according to claim 1 or 2, characterized in that the concentration of sodium sulfamate in the pretreatment working fluid is 6-15 g/L.
4. The process according to claim 1, wherein the concentration of calcium sulfate in the pretreatment working fluid is 9-15 g/L.
5. The process according to claim 1, wherein the concentration of sodium hydroxide in the pretreatment working fluid is 20g/L.
6. The process of claim 1, wherein the padding in step (1) is performed in two padding steps with a padding liquid ratio of 100%.
7. The process according to claim 1, wherein the alkaline washing and the full water washing in the step (3) are specifically: washing with water at 95 ℃ for 1 time, washing with alkali at 98 ℃ for 3 times, washing with water at 98 ℃ for 1 time, and washing with water at room temperature for 1 time; alkaline washing liquid used for alkaline washing: scouring agent RF 3g/L, caustic soda 9g/L.
8. The process according to claim 1, wherein in step (4), the room temperature scouring liquor is fed to 98 ℃ and steamed for 25min; the scouring liquor comprises the following components: scouring agent RF 3g/L.
9. The cotton fabric produced by the process according to any one of claims 1 to 8, wherein the cotton fabric has a strong retention of not less than 96%, a whiteness of not less than 90, and a capillary effect of not less than 11cm 30min -1 Desizing ratings were above 7.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3556710A (en) * | 1967-12-20 | 1971-01-19 | Du Pont | Method for bleaching textile fabrics containing portions dyed with a sensitive dyestuff |
| CN101016682A (en) * | 2007-03-07 | 2007-08-15 | 赵志刚 | Cold-rolling heap staining method for textile fabric |
| CN111962285A (en) * | 2020-08-04 | 2020-11-20 | 天津工业大学 | Bleaching agent for yakwool and processing method |
| CN113463367A (en) * | 2021-07-08 | 2021-10-01 | 江南大学 | Low-strength-loss cold-batch bleaching method for cotton fabric |
| CN113564912A (en) * | 2021-07-28 | 2021-10-29 | 绍兴赫凡纺织科技有限公司 | Preparation method and application of efficient cold rolling batch refining agent |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6569209B2 (en) * | 2001-02-27 | 2003-05-27 | The Procter & Gamble Company | Method for the use of hydrophobic bleaching systems in cold batch textile preparation |
| EP2662329A1 (en) * | 2012-05-11 | 2013-11-13 | Creachem SA | Peroxygen release compositions and method for producing them |
-
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- 2022-06-10 CN CN202210657484.1A patent/CN114875654B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3556710A (en) * | 1967-12-20 | 1971-01-19 | Du Pont | Method for bleaching textile fabrics containing portions dyed with a sensitive dyestuff |
| CN101016682A (en) * | 2007-03-07 | 2007-08-15 | 赵志刚 | Cold-rolling heap staining method for textile fabric |
| CN111962285A (en) * | 2020-08-04 | 2020-11-20 | 天津工业大学 | Bleaching agent for yakwool and processing method |
| CN113463367A (en) * | 2021-07-08 | 2021-10-01 | 江南大学 | Low-strength-loss cold-batch bleaching method for cotton fabric |
| CN113564912A (en) * | 2021-07-28 | 2021-10-29 | 绍兴赫凡纺织科技有限公司 | Preparation method and application of efficient cold rolling batch refining agent |
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