CN112593404A - Preparation method of textile size - Google Patents
Preparation method of textile size Download PDFInfo
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- CN112593404A CN112593404A CN202011587485.0A CN202011587485A CN112593404A CN 112593404 A CN112593404 A CN 112593404A CN 202011587485 A CN202011587485 A CN 202011587485A CN 112593404 A CN112593404 A CN 112593404A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/11—Starch or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
Abstract
The invention belongs to the technical field of textiles, and particularly relates to a preparation method of textile size. The invention firstly utilizes the organic acid to modify the starch, increases the affinity of the starch through the organic acid, introducing oxygen to adsorb partial oxygen on the surface of starch, adding mixed enzyme for enzymolysis to increase water resistance and improve adhesion, promoting formation of amino group on the surface by the action of ethylenediamine to improve adhesion, adding modifier for modification, can improve the film forming property of the sizing agent in a low temperature state, improve the surface active groups of the sizing agent, such as carboxyl and the like, and finally add mixed monomers and the like, under the action of a catalyst, the mixed monomer is combined with the modified starch, and the silane in the mixed monomer is used for grafting modification to improve the hydrophobic property and the mechanical property, and the mixed monomer is subjected to graft modification, so that the sizing performance and the mechanical property are further enhanced, and the sizing efficiency at low temperature is improved.
Description
Technical Field
The invention belongs to the technical field of textiles, and particularly relates to a preparation method of textile size.
Background
The size refers to a raw material used in textile sizing engineering and consists of an adhesive and an auxiliary agent. In sizing engineering, the adhesive improves the hairiness of warp yarns, increases the yarn strength, reduces yarn breakage and improves the loom efficiency and product quality through the self adhesive property. In order to meet the requirements for warp sizing, the size needs to have the following properties: the adhesive has good adhesive capacity, improves the strength of the warp yarns, and sticks to surface hairiness; good film forming property, good slurry film strength, elasticity and wear resistance; due to proper viscosity, the slurry can not only better coat the surface of the warp yarns, but also penetrate into the warp yarns to form bonding among fibers; the viscosity thermal stability is good; good miscibility with other slurry components; the slurry does not foam, is not easy to deteriorate, is not easy to precipitate and has no peculiar smell in the using process; better desizing performance and biodegradability; high cost performance.
The sizing agent is a special auxiliary material and is indispensable in the textile processing procedure, the use of the sizing agent can ensure that the weaving production can be normally carried out, and the performance of the sizing agent can be good or bad and can be correctly used, so that the production quality and the processing efficiency of the fabric can be directly influenced. For textile production, the size is the second largest raw material to be arranged behind the fiber raw material and is therefore highly appreciated by the industry. At present, starch, polyvinyl alcohol and acrylic pulp are three types of pulp commonly used, wherein starch is mainly used in the pulp.
When the existing sizing agent is applied, the temperature is controlled to be more than 90 ℃, the viscosity is prevented from increasing after the temperature is reduced to influence sizing quality, and a plurality of sizing defects such as sizing skin, sizing spots and the like are also prevented, so that the high temperature is always maintained, the steam quantity is wasted, and energy-saving production cannot be realized by continuously maintaining the high temperature.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problems that the existing textile size can not be sized at low temperature and the elongation at break and the flexing resistance after sizing are poor, the textile size and the preparation method thereof are provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of textile size comprises the following steps:
(1) putting mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18: 17-22, stirring and mixing, introducing oxygen, heating, boosting pressure, stirring, then cooling to room temperature, adding mixed enzyme accounting for 3-5% of the mass of the starch, stirring and carrying out enzymolysis;
(2) discharging after enzymolysis is finished, performing spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 7-9: 13:3 at 900r/min, performing freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, a modifier and ethanol according to a mass ratio of 9: 1-3: 13, adding composite alkali with the mass of 30-35% of the freeze-dried substance, heating, stirring, cooling, standing, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 110-120 parts of water, 50-60 parts of a drying material, 15-18 parts of a mixed monomer and 3-6 parts of a catalyst by weight, putting into a reaction kettle, heating under the protection of nitrogen, stirring for reaction, discharging, spray drying, and collecting the spray drying material to obtain the textile size.
Preferably, the organic acid is mixed in the step (1) by mixing tartaric acid and citric acid according to a mass ratio of 3: 1-5.
Preferably, the mixed enzyme in the step (1) is prepared by mixing cellulase and L-amino acid oxidase according to the mass ratio of 6: 4-7.
Preferably, the modifier in the step (3) is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 2-5.
Preferably, the compound alkali in the step (3) is formed by mixing sodium hydroxide and sodium bicarbonate according to the mass ratio of 6: 1.
Preferably, the mixed monomer in the step (4) is prepared by mixing aminopropyltriethoxysilane and maleic anhydride according to a mass ratio of 5: 1-3.
Preferably, the catalyst in the step (4) is any one of diethanolamine and sodium ethoxide.
Compared with other methods, the method has the beneficial technical effects that:
the invention firstly utilizes organic acid to modify starch, increases the affinity of starch through the organic acid, introduces oxygen in the process, introduces oxygen to make partial oxygen adsorbed on the surface of the starch, adds mixed enzyme for enzymolysis, firstly can remove impurities in the starch and improve the affinity of slurry, secondly removes oxygen and partial groups in the starch through L-amino acid oxidase to increase the water resistance of the starch and improve the cohesiveness, then utilizes the action of ethylenediamine to promote the formation of amino on the surface and improve the cohesiveness, adds a modifier for modification, can improve the film forming property of the slurry in a low temperature state and improve surface active groups of the slurry, such as carboxyl and the like, finally adds mixed monomers and the like, firstly combines the mixed monomers with the modified starch under the action of a catalyst, utilizes silane grafting modification in the modified starch, the hydrophobic property and the mechanical property are improved, the sizing property and the mechanical property are further enhanced through the graft modification of the mixed monomers, and the sizing efficiency at low temperature is improved.
Detailed Description
The mixed organic acid is prepared by mixing tartaric acid and citric acid according to the mass ratio of 3: 1-5.
The mixed enzyme is prepared by mixing cellulase and L-amino acid oxidase according to the mass ratio of 6: 4-7.
The modifier is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 2-5.
The compound alkali is formed by mixing sodium hydroxide and sodium bicarbonate according to the mass ratio of 6: 1.
The mixed monomer is formed by mixing aminopropyltriethoxysilane and maleic anhydride according to a mass ratio of 5: 1-3.
The catalyst is any one of diethanolamine and sodium ethoxide.
A preparation method of textile size comprises the following steps:
(1) putting mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18: 17-22, stirring and mixing for 2 hours at the speed of 600r/min, introducing oxygen, heating to 80 ℃, boosting the pressure to 1.2MPa, stirring for 2 hours, then cooling to room temperature, adding mixed enzyme with the mass of 3-5% of the starch, stirring and performing enzymolysis for 1 hour;
(2) discharging after enzymolysis is finished, performing spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 7-9: 13:3 at a speed of 900r/min for 5 hours, performing freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, the modifier and ethanol at a mass ratio of 9: 1-3: 13 at 700r/min for 30min, adding composite alkali accounting for 30-35% of the mass of the freeze-dried substance, heating to 60 ℃, stirring for 5h, cooling to room temperature, standing for 6h, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 110-120 parts of water, 50-60 parts of a drying material, 15-18 parts of a mixed monomer and 3-6 parts of a catalyst by weight, putting into a reaction kettle, heating to 90 ℃ under the protection of nitrogen, stirring for reaction for 10 hours, discharging, spray-drying, and collecting a spray-dried material to obtain the textile size.
Example 1
The mixed organic acid is prepared by mixing tartaric acid and citric acid according to the mass ratio of 3: 5.
The mixed enzyme is prepared by mixing cellulase and L-amino acid oxidase according to the mass ratio of 6: 7.
The modifier is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 5.
The compound alkali is formed by mixing sodium hydroxide and sodium bicarbonate according to the mass ratio of 6: 1.
The mixed monomer is formed by mixing aminopropyltriethoxysilane and maleic anhydride according to the mass ratio of 5: 3.
The catalyst is any one of diethanolamine and sodium ethoxide.
A preparation method of textile size comprises the following steps:
(1) putting the mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18:22, stirring and mixing for 2 hours at the speed of 600r/min, introducing oxygen, heating to 80 ℃, boosting the pressure to 1.2MPa, stirring for 2 hours, then cooling to room temperature, adding mixed enzyme with the mass of 5% of the starch, stirring and carrying out enzymolysis for 1 hour;
(2) discharging after enzymolysis is finished, spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 9:13:3 at 900r/min for 5h, freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, the modifier and ethanol at a mass ratio of 9: 3:13 at 700r/min for 30min, adding composite alkali accounting for 35% of the mass of the freeze-dried substance, heating to 60 ℃, stirring for 5h, cooling to room temperature, standing for 6h, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 120 parts of water, 60 parts of a drying material, 18 parts of a mixed monomer and 6 parts of a catalyst by weight, putting the mixture into a reaction kettle, heating to 90 ℃ under the protection of nitrogen, stirring for reaction for 10 hours, discharging, carrying out spray drying, and collecting the spray-dried material to obtain the textile size.
Example 2
The mixed organic acid is prepared by mixing tartaric acid and citric acid according to the mass ratio of 3: 4.
The mixed enzyme is prepared by mixing cellulase and L-amino acid oxidase according to the mass ratio of 6: 5.
The modifier is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 3.
The compound alkali is formed by mixing sodium hydroxide and sodium bicarbonate according to the mass ratio of 6: 1.
The mixed monomer is formed by mixing aminopropyltriethoxysilane and maleic anhydride according to the mass ratio of 5: 2.
The catalyst is any one of diethanolamine and sodium ethoxide.
A preparation method of textile size comprises the following steps:
(1) putting the mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18:20, stirring and mixing for 2 hours at the speed of 600r/min, introducing oxygen, heating to 80 ℃, boosting the pressure to 1.2MPa, stirring for 2 hours, then cooling to room temperature, adding mixed enzyme with the mass of 4% of the starch, stirring and performing enzymolysis for 1 hour;
(2) discharging after enzymolysis is finished, spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 8:13:3 at 900r/min for 5h, freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, the modifier and ethanol at a mass ratio of 9:2:13 at 700r/min for 30min, adding 33% of composite alkali by mass of the freeze-dried substance, heating to 60 ℃, stirring for 5h, cooling to room temperature, standing for 6h, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 115 parts of water, 55 parts of a drying material, 17 parts of a mixed monomer and 5 parts of a catalyst by weight, putting the materials into a reaction kettle, heating to 90 ℃ under the protection of nitrogen, stirring for reaction for 10 hours, discharging, carrying out spray drying, and collecting the spray-dried material to obtain the textile size.
Example 3
The mixed organic acid is prepared by mixing tartaric acid and citric acid according to the mass ratio of 3: 1.
The mixed enzyme is prepared by mixing cellulase and L-amino acid oxidase according to the mass ratio of 6: 4.
The modifier is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 2.
The compound alkali is formed by mixing sodium hydroxide and sodium bicarbonate according to the mass ratio of 6: 1.
The mixed monomer is formed by mixing aminopropyltriethoxysilane and maleic anhydride according to the mass ratio of 5: 1.
The catalyst is any one of diethanolamine and sodium ethoxide.
A preparation method of textile size comprises the following steps:
(1) putting mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18:17, stirring and mixing for 2 hours at the speed of 600r/min, introducing oxygen, heating to 80 ℃, boosting the pressure to 1.2MPa, stirring for 2 hours, then cooling to room temperature, adding mixed enzyme with the mass of 3% of the starch, stirring and performing enzymolysis for 1 hour;
(2) discharging after enzymolysis is finished, spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 7:13:3 at 900r/min for 5h, freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, the modifier and ethanol at a mass ratio of 9:1:13 at 700r/min for 30min, adding composite alkali with the mass of 30% of the freeze-dried substance, heating to 60 ℃, stirring for 5h, cooling to room temperature, standing for 6h, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 110 parts of water, 50 parts of a drying material, 15 parts of a mixed monomer and 3 parts of a catalyst by weight, putting the mixture into a reaction kettle, heating to 90 ℃ under the protection of nitrogen, stirring for reaction for 10 hours, discharging, carrying out spray drying, and collecting the spray-dried material to obtain the textile size.
Comparative example 1: essentially the same as example 2, except that the mixed enzyme was absent;
comparative example 2: essentially the same as example 2, except that the mixed monomers were absent;
comparative example 3: essentially the same as example 2, except that the modifier was absent;
the textile pulps prepared in examples 1 to 3 and comparative examples 1 to 3 were examined. The detection method comprises the following steps: the sizing experiment was performed on a GA392 single yarn slasher using single yarn sizing. 200g of the textile sizing agents of the embodiment and the comparative example are respectively weighed, then emulsion with the concentration of 10% is respectively prepared, the emulsion is heated to 75 ℃ in a water bath kettle, the temperature is kept for 1h, the temperature is kept for 4 h, the preparation of the sizing agent is completed, the sizing mode adopts single dipping and single pressing, the temperature of a drying cylinder is 85 ℃, and the speed of a sizing machine is selected to be 20 m/min.
Sizing rate:
after taking a certain amount of slashing sample, drying the slashing sample in an oven at the temperature of 105-110 ℃ until the weight of the slashing does not change any more, and weighing the slashing sample (to the accuracy of 0.01 g) after drying and cooling. A sizing sample is placed in boiling distilled water for boiling for 10 min by adopting a sulfuric acid desizing method, then is placed in a dilute sulfuric acid solution with the concentration of 0.12 mol/L for boiling for 30min, the sample is taken out, is rinsed by hot water, is used for detecting whether the sizing agent is completely removed or not by using a dilute iodine solution, and is repeatedly boiled and washed until the sample has no color reaction on iodine. Finally, the desized and cleaned sample is placed into an oven at 105-110 ℃ for drying, and weighed after cooling, and the dry weight (accurate to 0.01 g) of the desized warp yarn is recorded. Calculating the sizing ratio according to the formula:
warp sizing ratio = (dry mass of slash-dry mass of raw yarn)/dry mass of raw yarn x 100%;
sizing reinforcement and draw-down ratio:
the slashing reinforcement and the elongation reduction are the degrees of increase in breaking strength and decrease in elongation at break of the warp yarn after sizing. Under the standard atmospheric condition, the sized warp yarns are subjected to standing balance for 24 hours, the elongation at break and the breaking strength of the sized yarns are tested on an electronic single yarn strength tester (HD 021E < + >), and the test is repeated for 50 times, and the average values are respectively calculated. And (3) calculating the enhancement rate and the elongation reducing rate according to the formula:
reinforcement of slash = (average breaking strength of slash-average breaking strength of raw yarn)/average breaking strength of raw yarn x 100%;
elongation loss of slashes = (average elongation at break of 50 base yarns-average elongation at break of 50 slashes)/average elongation at break of 50 slashes x 100%;
the results are shown in Table 1
Table 1:
| test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Reinforcing ratio (%) of slashing | 19.2 | 21.1 | 19.8 | 15.6 | 12.1 | 14.8 |
| Sizing percentage (%) | 15.32 | 16.78 | 15.53 | 13.26 | 11.85 | 12.96 |
| Elongation percentage of slashing (%) | 20.3 | 19.9 | 20.1 | 22.3 | 23.5 | 22.6 |
In conclusion, the textile size obtained by the invention has good sizing effect, good low-temperature sizing efficiency and adhesion, better effect compared with the commercial products, and worth of great popularization.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.
Claims (7)
1. A preparation method of textile size is characterized by comprising the following steps:
(1) putting mixed organic acid, starch and water into a reactor according to the mass ratio of 5:18: 17-22, stirring and mixing, introducing oxygen, heating, boosting, stirring, then cooling to room temperature, adding mixed enzyme with the mass of 3-5% of the starch, stirring and carrying out enzymolysis;
(2) discharging after enzymolysis is finished, performing spray drying, collecting dried substances, stirring and mixing the dried substances, water and ethylenediamine at a mass ratio of 7-9: 13:3 at 900r/min, performing freeze drying, and collecting freeze-dried substances;
(3) stirring the freeze-dried substance, a modifier and ethanol according to a mass ratio of 9: 1-3: 13, adding composite alkali with the mass of 30-35% of the freeze-dried substance, heating, stirring, cooling, standing, discharging, filtering, collecting a filter cake, drying, and collecting a dried substance;
(4) taking 110-120 parts of water, 50-60 parts of a drying material, 15-18 parts of a mixed monomer and 3-6 parts of a catalyst by weight, putting into a reaction kettle, heating under the protection of nitrogen, stirring for reaction, discharging, spray drying, and collecting the spray drying material to obtain the textile size.
2. The preparation method of the textile size according to claim 1, wherein the organic acid mixture in the step (1) is prepared by mixing tartaric acid and citric acid according to a mass ratio of 3: 1-5.
3. The preparation method of the textile size according to claim 1, wherein the mixed enzyme in the step (1) is prepared by mixing cellulase and L-amino acid oxidase according to a mass ratio of 6: 4-7.
4. The preparation method of the textile size according to claim 1, wherein the modifier in the step (3) is formed by mixing chloroacetic acid and sodium dodecyl benzene sulfonate according to a mass ratio of 8: 2-5.
5. The preparation method of the textile size according to claim 1, wherein the composite alkali in the step (3) is formed by mixing sodium hydroxide and sodium bicarbonate according to a mass ratio of 6: 1.
6. The preparation method of the textile size according to claim 1, wherein the mixed monomer in the step (4) is prepared by mixing aminopropyltriethoxysilane and maleic anhydride according to a mass ratio of 5: 1-3.
7. The method for preparing the textile size according to claim 1, wherein the catalyst in the step (4) is any one of diethanolamine and sodium ethoxide.
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| CN202011587485.0A CN112593404A (en) | 2020-12-29 | 2020-12-29 | Preparation method of textile size |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354426A (en) * | 2022-09-06 | 2022-11-18 | 朱财雄 | Preparation method of antibacterial graphene fabric |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354426A (en) * | 2022-09-06 | 2022-11-18 | 朱财雄 | Preparation method of antibacterial graphene fabric |
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