CN109023957B - Preparation process of tencel-like style fabric - Google Patents
Preparation process of tencel-like style fabric Download PDFInfo
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- CN109023957B CN109023957B CN201810655415.0A CN201810655415A CN109023957B CN 109023957 B CN109023957 B CN 109023957B CN 201810655415 A CN201810655415 A CN 201810655415A CN 109023957 B CN109023957 B CN 109023957B
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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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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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
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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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
- D06M15/19—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
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Abstract
The invention discloses a preparation process of tencel-like style fabric, which relates to the technical field of textile, and comprises the procedures of enzyme treatment, desizing, water squeezing presetting, sand washing, fiber opening, dehydration, scutching, fixed drying, oiling and air patting on TR fabric, and a desizing agent C is added during desizing15H31O(CH2OCH2)15H, processing the general TR fabric into the TR fabric with tencel style hand feeling.
Description
Technical Field
The invention relates to the technical field of textile printing and dyeing, in particular to a preparation process of a tencel-like style fabric.
Background
Tencel fiber is a novel artificial cellulose fiber, is green and environment-friendly, and is known as green fiber of twenty-first century. The tencel fiber is a brand-new fiber produced by using wood pulp as a raw material through a solvent spinning method. It has the comfort of cotton, the strength of terylene, the luxurious aesthetic feeling of wool fabric and the unique touch of real silk; the touch feeling style of the novel ice cream is soft, smooth and suspension, elegant and dynamic, grey frost feeling, unique in touch feeling, cool and refreshing, and has antique style.
The TR fabric is an important variety of synthetic fibers and is the commodity name of polyester fibers in China. The fiber-forming high polymer, namely polyethylene terephthalate, is prepared by using purified terephthalic acid or dimethyl terephthalate and ethylene glycol as raw materials through esterification or ester exchange and polycondensation, and is a synthetic fiber for viscose and polyester blending.
The TR fabric has a draping feeling, has the advantages of high strength and good elasticity of terylene, has high air permeability and anti-perforation property of viscose, and reduces the pilling property and the static phenomenon of the fabric.
The tencel fabric in the market has good hand feeling and style and is deeply loved by the masses, but the production and preparation processes of the tencel fabric are complex compared with those of a TR fabric, and the printing and dyeing process is very difficult; compared with tencel fabric, the TR fabric has a much simplified preparation process, has the strength and air permeability of the tencel fabric, is low in manufacturing cost, and has a hand feeling style inferior to that of the tencel fabric.
Disclosure of Invention
The invention aims to provide a preparation process of a tencel-style-imitated fabric, which is characterized in that a general TR fabric is processed into the TR fabric with tencel-style hand feeling through the procedures of enzyme treatment, desizing, water squeezing presetting, sand washing, fiber opening, dehydration, scutching, fixed drying, oiling and air patting on the TR fabric.
The technical purpose of the invention is realized by the following technical scheme:
a process for preparing a tencel-like style fabric comprises the following steps of:
s2: carrying out enzyme treatment on the TR fabric;
s3: desizing the TR fabric after enzyme treatment, and adding a desizing agent C into a desizing pool15H31O(CH2OCH2)15H；
S4: carrying out water squeezing presetting on the desized TR fabric;
s5: sand washing the TR fabric subjected to the water squeezing presetting;
s6: splitting the TR fabric subjected to sand washing;
s9: dehydrating the opened TR fabric;
s10: scutching the dehydrated TR fabric;
s11: drying the opened TR fabric in a fixed manner;
s12: oiling the TR fabric subjected to fixed drying;
s13: performing empty shooting on the oiled TR fabric;
after the ten steps are carried out, the TR fabric is processed into the fabric with the imitated tencel hand feeling after the empty shot of S13 is finished.
By adopting the technical scheme, as impurities such as cotton seed hulls, yellow spots, cotton wax and the like exist in the cotton and polyester blended fabric, the impurities are not beneficial to dyeing of the fabric or generate the phenomenon of uneven printing and dyeing; the impurities are dissolved and decomposed by the biological enzyme, so that the method is efficient and environment-friendly, the traditional method for treating the impurities by alkali is avoided, and the smooth hand feeling of the TR fabric is enhanced due to the removal of the impurities.
Then putting the TR fabric into a desizing pool for desizing, and adding a C in addition to other auxiliary agents in the desizing pool15H31O(CH2OCH2)15Compared with the traditional desizing agent, the addition of the H desizing agent greatly improves the desizing rate, so that the TR fabric is more thoroughly desized.
The biological enzyme can generate new and easily-treated impurities when dissolving and decomposing and removing the impurities, and meanwhile, the biological enzyme can generate some excrement for a while, the impurities and the excrement not only can influence the uneven dyeing of the fabric, but also the finished product can fade more and has hard hand feeling after being washed by water. But after desizing, the impurities inside and outside the fabric are removed completely, so that the subsequent problems can be avoided. Due to the addition of desizing agent C15H31O(CH2OCH2)15H enables the dissolving and desizing process to be faster and more thorough, and further enhances the hand feeling of the TR fabric.
And (3) carrying out mangling presetting on the TR fabric after desizing, presetting the TR fabric after the mangling, and then eliminating wrinkles generated by processing the TR fabric before and flattening the TR fabric.
The TR fabric needs to be put into an industrial washing machine filled with various auxiliaries such as a sand washing agent for sand washing after being subjected to water squeezing and presetting, the softness and the draping feeling of the TR fabric are greatly improved after the TR fabric is subjected to sand washing, and meanwhile, the brightness of the fabric surface of the TR fabric is reduced, so that the TR fabric shows the gray frost feeling of the tencel fabric, the antique wind is provided, and the tencel-like style of the TR fabric is enhanced.
The TR surface fabric is after sand washing, follows immediately thereafter and is the division fine, through the division fine, makes the fibre open completely with TR surface fabric fibrillation simultaneously, opens the top layer fine hair of TR surface fabric, makes TR surface fabric have nostalgic sense and fluffy sense, the while further three-dimensional style and the grey frost style that have increased the TR surface fabric.
The TR fabric needs to be put into a centrifugal dehydrator for dehydration next, and moisture in the TR fabric is removed preliminarily, so that the follow-up drying time is shortened. And then, putting the TR fabric into a scutching machine for scutching, flatly unfolding the TR fabric, and smoothly carrying out fixed drying, namely, shaping and drying of the TR fabric.
Put into the boarding machine with the TR surface fabric, through warp knitting, weft knitting and heat setting, can dry the TR surface fabric when stereotyped under the hot-blast effect of high temperature when inside through the boarding machine, improve the feel, slide and the breadth of TR surface fabric, the TR surface fabric after the design is dried has good feeling and stable size. And then, oiling the TR fabric.
The TR fabric is put into an industrial washing machine again for oiling, so that the TR fabric comprehensively absorbs the softening agent added in the oiling process, and the fluffy hand feeling and the slip elasticity of the TR fabric are improved. Then, the TR fabric enters a beating process.
The TR fabric is placed in an air flapping machine for air flapping, and the soft, smooth, suspension, elegant and dynamic feeling, the grey frost feeling and the unique touch feeling and style of the final tencel of the TR fabric are stabilized through mechanical force.
As a further improvement of the invention, the method comprises the step of S2 enzyme treatment, wherein various enzymes are added into a reaction tank by mass percent of 20-40% of pectin esterase solution, 20-40% of polygalacturonase and 20-60% of cellulase, the reaction temperature is controlled at 40-65 ℃, the pH value is controlled at 4.5-6, and then the mixture is soaked for 2-4 hours.
By adopting the technical scheme, under the proportion of the enzyme, a smooth hand feeling basic tone is established for the TR fabric, the surface of the TR fabric is cleaned, surface fluff is reduced, and pilling of the TR fabric is prevented; pectin esterase and pectin on the TR fabric form a complex first, then continue reacting with this complex again, make it turn into water-soluble product and dissolve from TR fabric, and process TR fabric under the condition of pH 4-5, not only can remove pectin, improve the capillary effect, and the potential damage to TR fabric is few; polygalacturonase can cut alpha-1, 4-glycosidic bond of pectic acid to generate free galacturonic acid, which is dissolved, and can promote the reaction of pectin esterase, so that the reaction of pectin esterase is more thorough and the reaction speed is increased; after the cellulase is added, the hand feeling and the appearance of the TR fabric are improved, so that the surface of the TR fabric becomes smooth and fluffy while the strength in the TR fabric is properly reduced, and the amorphous area of the fiber is further increased.
As a further improvement of the invention, desizing agent C in S2 desizing15H31O(CH2OCH2)15The addition amount of H is 6 g/L-10 g/L.
By adopting the technical scheme, through experimental analysis, when the desizing agent C is used as the desizing agent C15H31O(CH2OCH2)15When the weight of H is controlled to be 6 g/L-10 g/L, the desizing rate is obviously improved.
As a further improvement of the present invention, the S4 squeezing water is intended to include: and (3) putting the TR fabric subjected to the S3 desizing into a squeezing pool for squeezing, squeezing the redundant liquid back into the squeezing pool by a roller after squeezing, and then entering a heat setting machine for presetting.
By adopting the technical scheme, the desized TR fabric contains a large amount of liquid, and is subjected to water squeezing before presetting, so that the TR fabric in a wet state is flattened by the water squeezing, impurities are further removed under the impact of flowing water and the extrusion of a roller, and the clearness of the surface grains of the TR fabric is ensured; and extruding the TR fabric by a roller, and then putting the TR fabric into a heat setting machine to fix the size of the TR fabric, and then facilitating the next sand washing.
As a further improvement of the invention, the sand washing powder added in the S5 sand washing comprises the following components in percentage by mass: 40-60% of diamond sand, 25-40% of methyl arachidonic acid and 15-20% of sodium bicarbonate.
By adopting the technical scheme, the TR fabric is firstly bulked by the sodium bicarbonate to generate fluffy feeling, then the fluffy TR fabric is generated by the rhombic sand, and then the TR fabric achieves softness and glutinous property by using the methyl arachidonic acid, so that the drapability is obviously improved.
As a further improvement of the invention, the S6 fiber opening process comprises the steps of adding water into a machine cylinder at normal temperature, then pouring 98% concentrated sulfuric acid into the machine cylinder, preparing the sulfuric acid in the machine cylinder into dilute sulfuric acid with the concentration of 45% -60%, and controlling the amount of the prepared dilute sulfuric acid to be between 1.5g/L and 2.5 g/L.
By adopting the technical scheme, concentrated sulfuric acid is usually used in the existing fiber opening process, and experiments show that the TR fabric has better hand feeling when the concentration of the sulfuric acid is controlled to be 45-60% and the amount of the sulfuric acid is controlled to be 1.5-2.5 g/L; concentrated sulfuric acid has strong oxidizing property and strong corrosivity, workers have strong harm to skin in the production and addition process, and the danger of the workers in the production process can be greatly reduced by using dilute sulfuric acid.
When concentrated sulfuric acid is used in this step, desizing agent C is produced because of its strong oxidizing property15H31O(CH2OCH2)15H is easy to be oxidized into carbon after encountering concentrated sulfuric acid, then is accumulated on the surface of the TR fabric and is difficult to remove, and the step adopts dilute sulfuric acid, so that the step of fiber opening can be finished, and C is avoided15H31O(CH2OCH2)15H is oxidized to carbon and then deposited on the TR face.
As a further improvement of the invention, the S6 is split, and after the dilute sulfuric acid is prepared, the temperature of the machine cylinder water bath is raised to 70-80 ℃ from the normal temperature, and the temperature is kept for 60-90 min.
By adopting the technical scheme, when the temperature of the machine cylinder is raised to 70-80 ℃ and the temperature is kept for 60-90 min, the fiber opening effect is better, and the TR fabric is further fibrillated.
As a further improvement of the invention, S11 fixed drying is carried out, the TR fabric after being scutched through S10 is placed into a heat setting machine for setting and drying, the temperature of the heat setting machine is adjusted to be 180-200 ℃, the heat setting time is set to be 20-40S, cooling is carried out after heat setting, the cooling temperature is 25 ℃, the cooling time is 50-70 min, and then static elimination is carried out.
By adopting the technical scheme, after the TR fabric enters the heat setting machine, the size of the TR fabric is completely stabilized after the temperature reaches 180-200 ℃ for 20-40 s, and the TR fabric is also completely dried at the temperature and within the time; the time for cooling to room temperature is controlled within 50-70 min, and smooth, strong and stiff hand feeling of the TR fabric can be effectively controlled.
As a further improvement of the invention, the S12 oil is applied, and C is added into the cylinder18H37COOCH2(CH2OCH2)20CH2OH。
By adopting the technical scheme, in the prior art, the oiling is carried out by using silicon oil, while in the invention, C is used18H37COOCH2(CH2OCH2)20CH2OH can make TR fabric have fluffy feeling and smooth elasticity, and compared with silicone oil, C18H37COOCH2(CH2OCH2)20CH2OH can be absorbed on the TR fabric more quickly, so that the working efficiency is improved.
Due to C18H37COOCH2(CH2OCH2)20CH2OH is easily decomposed into C18H37COOH and HOCH2(CH2OCH2)20CH2OH, since dilute sulfuric acid is used in S6 fiber opening, after cleaning, a part of dilute sulfuric acid is remained on the surface of the TR fabric and in the gaps of the fibers and is C18H37COOCH2(CH2OCH2)20CH2OH provides an acidic environment, thereby reducing C18H37COOCH2(CH2OCH2)20CH2And (4) OH decomposition.
As a further improvement of the invention, the TR fabric after S6 fiber opening is cleaned by normal temperature clean water, and after cleaning, the TR fabric is placed into a cold pad-batch dyeing machine for dyeing, and then S9 dehydration is carried out.
By adopting the technical scheme, some auxiliaries and dilute sulfuric acid left on the TR fabric before are washed clean by cleaning, so that the speed is increased for the subsequent working procedures; dyeing the TR fabric after the cleaning is finished, so that the universality of the TR fabric is enhanced; the cold pad-batch dyeing machine can prevent the cloth cover of the TR fabric from being scratched, further protect the TR fabric and reduce the loss in the production process.
In conclusion, the invention has the following beneficial effects:
1. the method comprises the following steps of carrying out enzyme treatment, desizing, mangling presetting, sand washing, fiber opening, dehydration, scutching, fixed drying, oiling and air-shot on the TR fabric, so that the common TR fabric is processed into the TR fabric with tencel style hand feeling;
2. by adding a C15H31O(CH2OCH2)15Compared with the traditional desizing agent, the addition of the H desizing agent greatly improves the desizing rate, so that the TR fabric is more thoroughly desized;
3. in the oiling process, C is added18H37COOCH2(CH2OCH2)20CH2OH can make TR fabric fluffy and smooth and elastic, and compared with silicone oil, C18H37COOCH2(CH2OCH2)20CH2OH can be absorbed on the TR fabric more quickly, so that the working efficiency is improved;
4. when the concentration of the sulfuric acid is controlled to be 45% -60% and the amount of the sulfuric acid is controlled to be 1.5-2.5 g/L, the TR fabric has better hand feeling and touch feeling, and the danger of workers in the production process can be greatly reduced by using the dilute sulfuric acid.
Drawings
FIG. 1 is a process flow diagram of a process for preparing a tencel-like style fabric of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1:
referring to fig. 1, a preparation process of a tencel-like style fabric, which comprises the following steps of:
s1: and (5) reinforcing the seam head.
S2: and (3) carrying out enzyme treatment on the TR fabric with the well-reinforced sewing head. The prepared TR fabric is put into a container containing various enzymes, soaked for 3 hours and then dissolved to remove some impurities originally contained in the TR fabric. The enzyme contained in the container and the mass percentage of the enzyme are as follows: 30 percent of pectinesterase, 30 percent of polygalacturonase and 40 percent of cellulase, the reaction temperature is 52.5 ℃, and the pH value is controlled at 5.2.
S3: desizing the TR fabric after enzyme treatment, and adding a desizing agent C into a desizing pool15H31O(CH2OCH2)15H; adding TR fabric with C15H31O(CH2OCH2)15H desizing agent C for desizing in desizing pool15H31O(CH2OCH2)15The amount of H added was 8 g/L.
S4: carrying out water squeezing presetting on the desized TR fabric; and (3) putting the TR fabric into a mangle for mangling, extruding redundant slurry back into the mangle through a roller after the mangle is ended, then pre-shaping the TR fabric in a heat setting machine, pre-shaping the TR fabric in size and simultaneously ensuring the clearness of the surface grains of the TR fabric.
S5: sand washing the TR fabric subjected to the water squeezing presetting; the TR fabric is put into an industrial washing machine filled with various other auxiliaries such as a sand washing agent and the like for sand washing, so that the TR fabric has a frosty feeling and has antique wind. The sand washing agent comprises: diamond sand 50%, methyl arachidonic acid 32.5% and sodium bicarbonate 17.5%.
S6: splitting the TR fabric subjected to sand washing; preparing dilute sulfuric acid with the concentration of 53 percent and the amount of 2g/L in a cylinder, and carrying out water bath on the temperature of the cylinder to 75 ℃; then putting the TR fabric into a machine cylinder for fiber opening, and keeping the temperature for 75 min. The TR fabric further enhances the stereoscopic impression and the grey frost feeling by opening fibers.
S7: and (3) washing the opened TR fabric by using warm water.
S8: and (3) putting the opened TR fabric into a cold pad-batch dyeing machine for dyeing.
S9: dehydrating the opened TR fabric; and (5) putting the TR fabric into a centrifugal dehydrator for dehydration.
S10: scutching the dehydrated TR fabric; and (4) putting the TR fabric into an open-width machine for unfolding.
S11: drying the opened TR fabric in a fixed manner; putting the TR fabric into a heat setting machine for setting and drying, wherein the temperature of the heat setting machine is adjusted to 190 ℃, and the duration is 30s, so that the size of the TR fabric is stable; then cooling to 25 ℃ after heat setting is finished, wherein the cooling time is 60min, so that the hand feeling, slippage and width of the TR fabric are kept; then, static electricity elimination is performed.
S12: oiling the TR fabric subjected to fixed drying; adding C in a setting machine18H37COOCH2(CH2OCH2)20CH2OH, so that the TR fabric has fluffy feeling and slippery elasticity.
S13: performing empty shooting on the oiled TR fabric; and (3) putting the TR fabric into an Italian Aier air beater to beat in air, and stabilizing the final tencel hand feeling and style of the TR fabric by using mechanical external force.
S14: and (4) putting the empty-shot TR fabric into a tenter for dry tentering. The performance of the TR fabric is more stable after dry stentering, the TR fabric is not easy to deform, and the hand feeling of the TR fabric is further softer.
And (5) detecting a finished product. And (4) judging indexes of all aspects of the manufactured TR fabric, and warehousing and rolling after the TR fabric reaches the standard.
Examples 2 to 5 differ from example 1 in that the contents of the various enzymes in the enzyme treatment are as follows:
examples 6 to 9 are different from example 1 in that the reaction temperatures in the enzyme treatment are as follows:
| example 6 | Example 7 | Example 8 | Example 9 | |
| Reaction temperature (. degree.C.) | 40 | 65 | 47.5 | 56 |
Examples 10 to 13 differ from example 1 in that the pH value in the enzyme treatment is as follows:
| example 10 | Example 11 | Example 12 | Example 13 | |
| pH value of pH | 4.5 | 6 | 4.7 | 5.6 |
Examples 14 to 17 differ from example 1 in that the soaking time in the enzyme treatment is as follows:
| example 14 | Example 15 | Example 16 | Example 17 | |
| Soaking time (h) | 2 | 4 | 2.5 | 3.5 |
Examples 18 to 21 differ from example 1 in the desizing agent C15H31O(CH2OCH2)15The amount of H added is as follows: unit: gram/liter (g/L)
| Examples | Example 18 | Example 19 | Example 20 | Example 21 |
| Adding amount of | 6 | 7 | 9 | 10 |
The difference between examples 22 to 25 and example 1 is that the compositions and mass percentages of the sand washing powder are as follows:
| example 22 | Example 23 | Example 24 | Example 25 | |
| Diamond shaped sand (%) | 40 | 60 | 45 | 55 |
| Arachidonic acid methyl ester (%) | 40 | 25 | 36 | 28 |
| Sodium bicarbonate (%) | 20 | 15 | 19 | 17 |
Examples 26 to 29 differ from example 1 in that the concentration of dilute sulfuric acid is as follows: unit: is based on
| Examples | Example 26 | Example 27 | Example 28 | Example 29 |
| Concentration of | 45 | 50 | 55 | 60 |
Examples 30 to 33 differ from example 1 in that the amount of dilute sulfuric acid added is as follows: unit: gram/liter (g/L)
| Examples | Example 30 | Example 31 | Example 32 | Example 33 |
| Adding amount of | 1.5 | 1.75 | 2.25 | 2.5 |
Examples 34 to 37 differ from example 1 in that the bath temperature of the cylinder during the splitting is as follows: unit: degree centigrade (. degree. C.)
| Examples | Example 34 | Example 35 | Example 36 | Example 37 |
| Temperature of | 70 | 72 | 78 | 80 |
Examples 38 to 41 differ from example 1 in that the fiber opening holding times are as follows: unit: minutes (min)
| Examples | Example 38 | Example 39 | Example 40 | EXAMPLE 41 |
| Time | 60 | 72 | 83 | 90 |
Examples 42 to 45 differ from example 1 in that the temperatures adjusted in the heat setting machine at the time of setting drying are as follows: unit: degree centigrade (. degree. C.)
| Examples | Example 42 | Example 43 | Example 44 | Example 45 |
| Temperature of | 180 | 200 | 185 | 195 |
Examples 46 to 49 differ from example 1 in that the heat-setting time at the setting drying is as follows: unit: second(s)
| Examples | Example 46 | Example 47 | Example 48 | Example 49 |
| Time | 20 | 40 | 25 | 35 |
Examples 50 to 53 differ from example 1 in that the cooling time after the setting and drying is as follows: unit: minute (min)
| Examples | Example 50 | Example 51 | Example 52 | Example 53 |
| Time | 50 | 70 | 55 | 65 |
The existing desizing agent is isomeric tridecanol polyoxyethylene ether, and the desizing agent used in the invention is C15H31O(CH2OCH2)15H. Desizing agent C in the invention15H31O(CH2OCH2)15H has better desizing effect compared with isomeric tridecanol polyoxyethylene ether, and in order to illustrate the desizing agent C in the invention15H31O(CH2OCH2)15The superiority of H is as follows.
The existing index for expressing the desizing degree is the desizing rate, wherein the desizing rate is (the content of impurities before desizing-the content of impurities after desizing)/the content of impurities before desizing multiplied by 100 percent, and the desizing index concept is adopted in the invention in order to express the desizing effect of the desizing agent more intuitively; the desizing index is the difference between the quality of the fabric before desizing and the quality of the fabric after desizing, namely the desizing index of the invention is the quality of the TR fabric before desizing-the quality of the TR fabric after desizing, the higher the desizing index is, the better the desizing effect is, and when the desizing index of the TR fabric is lower than 5, the desizing effect cannot reach the standard of finished product detection, and the next step cannot be carried out.
Selecting a TR fabric 1 m before desizing, weighing by using a tray balance, and recording data; desizing is carried out in the manner of example 1, then the TR fabric after desizing is taken, weighing is carried out by using a tray balance, and data are recorded; unit: gram (g)
The other conditions are the same as example 1, and the addition of desizing agent is 8g/L of isomeric tridecanol polyoxyethylene ether and C15H31O(CH2OCH2)15H, respectively obtaining desizing indexes as follows, carrying out three comparison experiments and obtaining an average value, unit: gram (g)
Table 1: isomeric tridecanol polyoxyethylene ether
| Blank control | Experiment one | Experiment two | Experiment three | Mean value of | |
| Desizing index | 4.2 | 6.7 | 6.3 | 6.5 | 6.5 |
Table 2: desizing agent is C15H31O(CH2OCH2)15H
| Blank control | Experiment one | Experiment two | Experiment three | Mean value of | |
| Desizing index | 4.2 | 9.3 | 9.8 | 9.6 | 9.6 |
Table 1 shows the desizing index of 1 m TR fabric when the desizing agent isomeric tridecanol polyoxyethylene ether is added. When the isomeric tridecanol polyoxyethylene ether is not added, due to the fact that other auxiliary agents are arranged in the desizing pool, the TR fabric can still be desized, but the effect is poor.
Table 2 shows when desizing agent C was added15H31O(CH2OCH2)15H, solving the desizing index of the fabric with the length of 1 meter TR.
Combining tables 1 and 2, the use of C under the same conditions was obtained15H31O(CH2OCH2)15The effect of H as a desizing agent on the desizing of the TR fabric is better than that of isomeric tridecanol polyoxyethylene ether.
To illustrate desizing agent C15H31O(CH2OCH2)15The influence of the addition amount of H on the desizing index of the TR fabric is the same as that in example 1 under other conditions, only the addition amount of the desizing agent is different, and then the obtained desizing index is compared as follows, wherein the addition amount is in unit: grams per liter (g/L); desizing index unit: gram (g)
TABLE 3
From Table 3, it can be seen that when desizing agent C was used15H31O(CH2OCH2)15When the addition amount of H is 8g/L, the desizing index is highest, which indicates that the addition amount is the optimal addition amount, and when the desizing agent C is used15H31O(CH2OCH2)15When the addition amount of H is less than 5g/L or more than 11g/L, the desizing effect is close to that of isomeric tridecanol polyoxyethylene ether.
The existing method for representing the fiber opening effect is the fiber opening rate and the longitudinal direction on an electron microscopeObserving the number of fiber separation lobes and the fiber opening rate Si＝N/N0×100％，SiShowing the opening rate of the ith point pattern, N showing the number of measured fiber separation lobes, N0Represents the theoretical number of separated lobes (N)050 x 12,50 filaments were cut into a bundle of 12 petals each).
The other conditions were the same as those in example 1, except that the opening rate S was determined from the dilute sulfuric acid (53%) and the concentrated sulfuric acid (98%) added at the time of opening S6iAnd respectively carrying out three times of comparison actual measurement to obtain the fiber opening rate and obtaining an average value, unit: is based on
TABLE 4
As shown in table 4, when no concentrated sulfuric acid is added and no dilute sulfuric acid is added, the splitting ratio is 0, i.e., no splitting is performed; the fiber opening rate is not much different when dilute sulfuric acid and concentrated sulfuric acid are added, and the fiber opening effect of the dilute sulfuric acid with the concentration of 53 percent and the concentrated sulfuric acid is similar.
It is considered that when the concentration of sulfuric acid is more than 60%, it is concentrated sulfuric acid, and has a strong oxidizing property. Desizing agent C was added to the S3 desizing in example 115H31O(CH2OCH2)15H, which belongs to an ether organic matter; after the TR fabric is cleaned, a part of desizing agent C is remained on the surface of the TR fabric and in gaps of fibers15H31O(CH2OCH2)15H, ether organic matters are oxidized into carbon by concentrated sulfuric acid, and then small black spots are formed on the surface of the TR fabric and are difficult to remove, and the phenomenon is experimentally characterized.
When other conditions are the same as example 1 and only the concentration of the sulfuric acid is different, then the TR fabric after fiber opening is randomly selected under different sulfuric acid concentrations to be made into samples, three times of experiments with the same operation are carried out, the number of black spots or black blocks of each sample is observed under an electron microscope, and the number of the black blocks is used for representing the desizing agent C15H31O(CH2OCH2)15The degree of oxidation of H.
TABLE 5, experiment 1
TABLE 6, experiment 2
TABLE 7, experiment 3
Table 8, average number of black dots observed in three experiments under conditions of different concentrations of sulfuric acid:
through tables 5 to 7, the average value of three groups of experimental data under each concentration is obtained to obtain table 8, and accidental phenomena are avoided. From table 8, when the concentration of sulfuric acid is higher than 60%, a plurality of black spots appear on the surface of the TR fabric, thereby affecting the quality of the TR fabric; and when the concentration of the sulfuric acid is not more than 53%, black spots or black blocks do not appear on the surface of the TR fabric.
Oil in S12 of example 1, add C18H37COOCH2(CH2OCH2)20CH2And (5) OH. When TR fabric absorbs C18H37COOCH2(CH2OCH2)20CH2After OH, the product had a fluffy feel and a slippery elastic property. While the prior oiling step is usually carried out by adding silicone oil, the silicone oil is compared with the C oil in the invention18H37COOCH2(CH2OCH2)20CH2OH has poor lubricity, and when substances added during oiling have poor lubricity, the problems of fabric abrasion and the like often occur. Are currently used to characterize lubricityThe invention selects the viscosity of the substance to represent the quality of the lubricating property, the higher the protection of the substance with high viscosity on the friction surface of the machine member or the fabric, the lower the protection of the substance with low viscosity on the friction surface of the machine member or the fabric.
The silicone oil and C were measured at room temperature of 20 ℃ under standard atmospheric pressure using an Engler viscometer18H37COOCH2(CH2OCH2)20CH2And converting the viscosity of OH from Engler viscosity to dynamic viscosity, selecting the same sample to perform three comparison experiments, and selecting distilled water to perform a blank comparison experiment, wherein the unit is as follows: mPa.s (mPa.s)
TABLE 9
| Experiment one | Experiment one | Experiment one | Mean value of | |
| C18H37COOCH2(CH2OCH2)20CH2OH | 210 | 217 | 208 | 211.7 |
| Silicone oil | 123 | 118 | 126 | 122.3 |
| Distilled water | 1.015 | 1.018 | 1.020 | 1.018 |
From Table 9, it is found that18H37COOCH2(CH2OCH2)20CH2The kinetic viscosity of OH is greater than that of silicone oil under the same conditions, thus obtaining C18H37COOCH2(CH2OCH2)20CH2OH has stronger protection to the friction surface of a machine part or a fabric than silicone oil.
C18H37COOCH2(CH2OCH2)20CH2OH is an ester species, and typically the following reversible reaction occurs if a catalyst is present:
the catalyst commonly used in this reaction is concentrated sulfuric acid or sodium hydroxide as catalyst to produce a carboxylic acid and an alcohol from an ester. Dilute sulfuric acid is used in the S5 opening process of example 1, and after cleaning, part of the dilute sulfuric acid which is not cleaned still exists on the surface of the TR fabric and in fiber pores, when C is18H37COOCH2(CH2OCH2)20CH2After OH is absorbed by the TR fabric, dilute sulfuric acid provides an acidic environment for the chemical reaction, and then the reaction is carried out reversely, so thatSo that the amount of reactants does not decompose to a large extent into carboxylic acids and alcohols; if concentrated sulfuric acid is used for the opening at S5, C is accelerated in this case18H37COOCH2(CH2OCH2)20CH2OH is decomposed, so that C absorbed by the TR fabric18H37COOCH2(CH2OCH2)20CH2OH is relatively reduced, so that the fluffy feeling and the slippery elasticity of the TR fabric cannot be ensured.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. A preparation process of a tencel-like style fabric is characterized in that a TR fabric is subjected to the following steps:
s2: carrying out enzyme treatment on the TR fabric; adding various enzymes which are 20-40% of pectin esterase solution, 20-40% of polygalacturonase and 20-60% of cellulase in percentage by mass into a reaction tank, controlling the reaction temperature at 40-65 ℃, controlling the pH value at 4.5-6, and then soaking for 2-4 h;
s3: desizing the TR fabric after enzyme treatment:
desizing agent C is added into a desizing pool15H31O(CH2OCH2)15H, the addition amount is 6 g/L-10 g/L;
s4: carrying out water squeezing presetting on the desized TR fabric;
s5: sand washing the TR fabric subjected to the water squeezing presetting;
s6: splitting the TR fabric subjected to sand washing; adding water into the machine cylinder at normal temperature, then pouring 98% concentrated sulfuric acid into the machine cylinder, preparing the sulfuric acid in the machine cylinder into dilute sulfuric acid with the concentration of 45% -60%, and controlling the amount of the prepared dilute sulfuric acid to be between 1.5g/L and 2.5 g/L;
s9: dehydrating the opened TR fabric;
s10: scutching the dehydrated TR fabric;
s11: drying the opened TR fabric in a fixed manner;
s12: oiling the TR fabric subjected to fixed drying,
adding a softening agent C into a cylinder18H37COOCH2(CH2OCH2)20CH2OH；
S13: performing empty shooting on the oiled TR fabric;
after the ten steps are carried out, the TR fabric is processed into the fabric with the imitated tencel hand feeling after the empty shot of S13 is finished.
2. The process for preparing an imitated tencel style fabric according to claim 1, wherein the step of S4 mangling comprises: and (3) putting the TR fabric subjected to the S3 desizing into a squeezing pool for squeezing, squeezing the redundant liquid back into the squeezing pool by a roller after squeezing, and then entering a heat setting machine for presetting.
3. The preparation process of the tencel-like style fabric according to claim 1, wherein the sand washing powder is added in the S5 sand washing, and the components are as follows by mass percent: 40-60% of diamond sand, 25-40% of methyl arachidonic acid and 15-20% of sodium bicarbonate.
4. The process for preparing the tencel-like style fabric according to claim 1, wherein the S6 is subjected to fiber opening, the temperature of the machine cylinder water bath is raised to 70-80 ℃ from the normal temperature after the dilute sulfuric acid is prepared, and the temperature is kept for 60-90 min.
5. The process for preparing the tencel-like style fabric according to claim 1, wherein the step of S11 is carried out for drying and setting the TR fabric after scutching in S10 in a heat setting machine, the temperature of the heat setting machine is adjusted to 180-200 ℃, the heat setting time is set to 20-40S, cooling is carried out after heat setting, the cooling temperature is 25 ℃, the cooling time is 50-70 min, and then static electricity is eliminated.
6. The process for preparing the tencel-like style fabric according to claim 2, wherein the TR fabric subjected to the S6 fiber splitting is cleaned by normal-temperature clean water, and then is dyed in a cold pad-batch dyeing machine, and then is dehydrated in S9.
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| JP6075638B2 (en) * | 2013-09-30 | 2017-02-08 | 株式会社Ｇｓユアサ | battery |
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| JP6075638B2 (en) * | 2013-09-30 | 2017-02-08 | 株式会社Ｇｓユアサ | battery |
| CN103952917A (en) * | 2014-05-04 | 2014-07-30 | 杭州新生印染有限公司 | Modal woven fabric splitting process |
| CN105155099A (en) * | 2015-11-02 | 2015-12-16 | 宣海成 | Preparation method of nostalgic style non-stretch Tencel/polyester fabric |
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