CN105442215A - Method for producing leather base cloth with high stitching strength - Google Patents
Method for producing leather base cloth with high stitching strength Download PDFInfo
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- CN105442215A CN105442215A CN201510765203.4A CN201510765203A CN105442215A CN 105442215 A CN105442215 A CN 105442215A CN 201510765203 A CN201510765203 A CN 201510765203A CN 105442215 A CN105442215 A CN 105442215A
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- destarch
- base cloth
- leather base
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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
- D06B9/00—Solvent-treatment of textile materials
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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
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Provided is a method for producing leather base cloth with high stitching strength. The method comprises desizing, cleaning, dying, softening, raising and sizing. An oxidation desizing method is utilized to perform the disizing. A desizing agent composed of 5-10 g of 35% hydrogen peroxide, sodium bromite solution with effective bromide concentration of 0.5-1.5 g and 10-20 g of caustic soda flakes is added into per liter of water. Normal temperature desizing is proformed first, the temperature is 10-30 DEG C, the travel speed is 30-40 m/min, high temperature disizing is performed, the temperature is 90-100 DEG C, and the travel speed is 60-80 m/min. According to the method for producing the leather base cloth, the novel combination of the dying and finishing and raising technology is utilized, the method is controlled by the oxidation desizing agent with specific compositions and strict technological parameters, the mechanical strength of the leather base cloth is improved remarkably on the basis that the production cost is not increased basically, compared with the prior art, especially the spicing strength is improved by once or above, and the method has good market prospects.
Description
Technical field
The present invention relates to a kind of production method of removing from office base cloth, particularly a kind of production method of leather base cloth of high sewing strength, belongs to textile technology field.
Background technology
At present, synthetic leather industry market adopt institutional framework be the 0.5 ㎜ heavy leather base cloth that the open-end spinning grey cloth of T/C21*10,38*30 is made into, there is higher mechanical strength, chemical-resistance and good cut out performance, and quality is soft, good hand touch, hygroscopicity are good, replace natural leather gradually, be widely used in the field such as sofa artificial leather and automobile cushion.The mechanical performance of leather base cloth comprises sewing strength, fracture strength, elongation at break, tearing strength etc., it is the important indicator determining leather base cloth product quality quality, usually first pullled cracking at the cloth place of sewing up owing to removing from office base cloth in using and destroy, the sewing strength of therefore removing from office base cloth is particularly important.
At present for adapting to the needs in market, each research and development institution works out multiple method, ites is desirable to improve its sewing strength on the basis not increasing production cost, but various comprehensive assessment index of improving one's methods is all not satisfactory.
First method is the institutional framework by changing grey cloth, adopt and increase thread count with the cohesive force between augmenting tissue structure, reach the object improving sewing strength, but the drawback of this kind of method is, it has not only increased considerably the production cost of grey cloth, be unfavorable for market competition, and have also been changed the style of process hides, thus usually will not adopt in practice.
Second method is the method adopting high-temperature shaping, because polyster fibre aggregates into macromolecular chain structure in hot conditions (180 DEG C-210 DEG C) by Small molecular chain structure, make tissue surface coarse, increase frictional force, strengthen institutional framework cohesion, thus also can reach the requirement improving sewing strength.But adopt the disadvantage of high-temperature shaping method to be, in 200 DEG C of type-approval process, the fracture strength of fabric, tearing strength can decline to a great extent, the jaundice and cloth cover can harden, therefore also and impracticable.
Chinese patent application " a kind of leather base cloth of high sewing strength ", publication number: CN101319445A, publication date: 2008.12.10, disclose a kind of production method of removing from office base cloth, adopt in stream hot water desizing processes, change the enzyme desizing agent that conventional art uses into oxidation desizing agent and hydrogen peroxide, utilize the strong oxidizer function of hydrogen peroxide, under the prerequisite of physical and chemical performance not changing grey cloth, the strand of fiber is changed, form yarn count appearance diaphragm, add the specific area of yarn count, change the surface structure of yarn count, add the coefficient of friction on yarn count surface, and make it bulk softness and be beneficial to follow-up napping, thus considerably increase the frictional force of fabric face and embrace and power, thus under the prerequisite not increasing other cost, significantly improve the sewing strength of leather base cloth.
But also there are obvious shortcomings and deficiencies in above-mentioned patent application: one is only provide one and indefinite trade name being oxidized desizing agent, do not provide concrete chemical formula composition and the concentration of oxidation desizing agent, and be oxidized the of a great variety of desizing agent, destarch effect is uneven, also have the oxidation desizing agent of quite a lot of kind to have damage to fiber, not can be suitable for the leather base cloth preparing high sewing strength; Although two is that hydrogen peroxide has Strong oxdiative function, but at high temperature chemical property extremely unstable, will produce violent decomposition, and reach 98 DEG C in the temperature of desizing processes, hydrogen peroxide very easily decomposes and loses Strong oxdiative function at this temperature, and thus the hydrogen peroxide actual effect that can play is very micro-; Three is the concentration not providing hydrogen peroxide, and obviously the oxidation effectiveness of the hydrogen peroxide of variable concentrations proportioning is far from each other; Four is the process parameter controls lacking each step, the speed of the speed comprising destarch, the temperature dipped, hot water cleaning, and the temperature not providing each road in the step of multiple tracks destarch, multiple tracks dyeing controls, add the hydrogen peroxide at high temperature factor such as unstable chemcial property, the mechanical strength extremely unstable of the leather base cloth thus prepared, although sometimes can reach the sewing strength as 45 ~ 100ibs/in pointed in description, testing result shows sewing strength lower than 30ibs/in sometimes.
Summary of the invention
Object of the present invention is just intended to solve the deficiency of present technology and provides a kind of production method of leather base cloth of high sewing strength, adopt the oxidation desizing agent of specific components and strict process parameter control, substantially the basis not increasing production cost significantly improves the mechanical strength of leather base cloth, particularly sewing strength is more than doubled than prior art, has outstanding technique effect.
The technical solution used in the present invention is: a kind of production method of leather base cloth of high sewing strength,------soft--napping--shapes in dyeing in cleaning to comprise destarch, destarch adopts oxidation destarch method, every premium on currency add by 5 ~ 10 grams, 35% hydrogen peroxide, effectively bromine concentration be the sodium bromite solution of 0.5 ~ 1.5 gram, the desizing agent that forms of 10 ~ 20 grams of sheet alkali, first destarch carries out normal temperature destarch, the temperature of normal temperature destarch is 10 ~ 30 DEG C, the speed of a motor vehicle is 30 ~ 40m/min, then high temperature destarch is carried out, the temperature of high temperature destarch is 90 ~ 100 DEG C, and the speed of a motor vehicle is 60 ~ 80m/min.
A production method for the leather base cloth of high sewing strength, described normal temperature destarch divides 2 roads to carry out, and described high temperature destarch divides 3 roads to carry out.
A production method for the leather base cloth of high sewing strength, described cleaning step employing temperature is that the hot-fluid water of 50 ~ 70 DEG C cleans 2 roads, and the speed of a motor vehicle is 10 ~ 20m/min.
A production method for the leather base cloth of high sewing strength, adds oligomerization acrylic acid series chelated dispersants 1 ~ 2g/L in described staining procedure.
A production method for the leather base cloth of high sewing strength, in described soft step, every premium on currency adds 14 ~ 16 gram of 820 softener and 7 ~ 8 gram of 920 softener combination, and temperature is 40 ~ 50 DEG C, and the speed of a motor vehicle is 20 ~ 30m/min.
A production method for the leather base cloth of high sewing strength, described napping step divides 6 road nappings, and adopt a light Duola, the burr of every square centimeter controls at 25000 ~ 35000, and napping pile thickness controls between 0.60 ~ 0.65mm.
The beneficial effect that the present invention has is:
1, adopt the innovative combination of dyeing and finishing and sanding, according to the characteristic of terylene fiber in grey cloth, desizing processes makes the internal penetration of fiber, expand, in dyeing course, be equipped with chelated dispersants again use, because terylene fiber has the characteristic of acidproof alkali resistant, therefore strong oxidizer not only can not change the physical and chemical performance of grey cloth, and the strand of fiber can also be made to change, form yarn count appearance diaphragm, add the specific area of yarn count, change the surface structure of yarn count, add the coefficient of friction on yarn count surface, make it to be issued to bulk softness in the shaggy prerequisite of yarn count, be beneficial to follow-up napping.
2, the hybrid oxidant of the hydrogen peroxide of rational proportion and sodium bromite composition is adopted to carry out oxidation destarch, and two step destarch methods of point first normal temperature destarch, again high temperature destarch, ensure that the activity of hydrogen peroxide, effectively play the Strong oxdiative destarch effect of hydrogen peroxide, and the synergistic oxidation effect of two kinds of oxidants, there is excellent destarch effect.
3, be oxidized the two step destarch methods that desizing processes adopts first normal temperature destarch, again high temperature destarch, compared with only adopting high temperature destarch method with prior art, energy consumption can also be reduced further, energy-saving and emission-reduction.
4, strict control is carried out to the technological parameter in leather base cloth production process, the speed of the speed comprising destarch, the temperature dipped, hot water cleaning, and control in the temperature in each road of multiple tracks destarch, multiple tracks dyeing, coordinate two step destarch methods (particularly adding normal temperature Desizing Step), the mechanical strength of the leather base cloth thus prepared is highly stable, continuous testing result display sewing strength, all higher than 60ibs/in, effectively overcomes the defect of the quality instability of the production method existence of prior art.
5, chelated dispersants selects oligomerization acrylic acid series chelated dispersants, heavy metal ion chelating capacity is strong, dispersion effect is good, it is a kind of dyeing assistant of excellent performance, the softener of 820 softeners and 920 softener hybrid modulations selected by softener, soft effect is good, and the leather base cloth made has good soft feel.
6, the method adopting Duola gently to rise in napping operation, reduce with minimum degree and grey cloth institutional framework is damaged, the burr of every square centimeter on grey cloth is controlled at 30000, napping pile thickness is controlled between 0.60mm to 0.65mm, make matte short, equal, close, to increase the frictional force of fabric face and to embrace and power, thus neither increase production cost, when all other physical indexs of grey cloth can be made again all to reach standard, greatly improve the sewing strength of leather base cloth.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
--cleaning--dyeing--soft--napping--sizing that the production method of the leather base cloth of a kind of high sewing strength provided by the invention, comprises destarch.Wherein, destarch adopts oxidation destarch method, every premium on currency add by 5 ~ 10 grams, 35% hydrogen peroxide, effectively bromine concentration be the sodium bromite solution of 0.5 ~ 1.5 gram, the desizing agent that forms of 10 ~ 20 grams of sheet alkali, first destarch is carried out as normal temperature destarch, the temperature of normal temperature destarch is 10 ~ 30 DEG C, and the speed of a motor vehicle is 30 ~ 40m/min, then carries out high temperature destarch, the temperature of high temperature destarch is 90 ~ 100 DEG C, and the speed of a motor vehicle is 60 ~ 80m/min.Preferred technical scheme is that destarch divides 5 roads to carry out further, normal temperature destarch 2 road, high temperature destarch 3 road.Oxidation destarch is carried out owing to adopting the hybrid oxidant of the hydrogen peroxide of rational proportion and sodium bromite composition, and two step destarch methods of point first normal temperature destarch, again high temperature destarch, effectively play the Strong oxdiative destarch effect of hydrogen peroxide, and the synergistic oxidation effect of two kinds of oxidants, method of the present invention has excellent destarch effect, coordinate with techniques such as follow-up dyeing, nappings, the leather base cloth of high sewing strength can be obtained.
The production method of high sewing strength leather base cloth provided by the invention, cleaning step employing temperature is that the hot-fluid water of 50 ~ 70 DEG C cleans 2 roads, and the speed of a motor vehicle is 10 ~ 20m/min, adopts the cleaning of twice hot-fluid water also to carry out under the low speed of a motor vehicle, cleaning thoroughly, guarantees follow-up Color.
The production method of the leather base cloth of high sewing strength provided by the invention, oligomerization acrylic acid series chelated dispersants 1 ~ 2g/L is added in staining procedure, oligomerization acrylic acid series chelated dispersants heavy metal ion chelating capacity is strong, and dispersion effect is good, is a kind of dyeing assistant of excellent performance.
The production method of the leather base cloth of high sewing strength provided by the invention, in soft step, every premium on currency adds 14 ~ 16 gram of 820 softener and 7 ~ 8 gram of 920 softener combination, and the temperature of soft step 40 ~ 50 DEG C, the speed of a motor vehicle is 20 ~ 30m/min.Wherein, 820 softeners and 920 softeners are produced by Huaian Bo Maofeng company.
The production method of the leather base cloth of high sewing strength provided by the invention, napping step divides 6 road nappings, adopt a light Duola, the burr of every square centimeter controls at 25000 ~ 35000, and napping pile thickness controls between 0.60 ~ 0.65mm, makes matte short, equal, close, to increase the frictional force of fabric face and to embrace and power, thus neither increasing production cost, when all other physical indexs of grey cloth can be made again all to reach standard, greatly improve the sewing strength of leather base cloth.
Compared with the leather base cloth that the leather base cloth that production method of the present invention obtains is obtained with art methods, property indices contrast is as following table:
The experimental data display of upper table, adopt the leather base cloth that production method of the present invention is obtained, under the prerequisite that the fabric such as thread count, thickness basic parameter is suitable, sewing strength brings up to 60 ~ 120ibs/in by 40 original ~ 50ibs/in, fracture strength brings up to 85 ~ 95ibs/in by 75 original ~ 80ibs/in, tearing strength brings up to 3.0 ~ 3.5ibs/in by original 1.2 ~ 1.5, and every mechanical performance index is improved, and particularly sewing strength raising reaches more than one times.Therefore, the leather base cloth that production method provided by the invention is obtained, has higher mechanical strength and excellent combination property, particularly has very high sewing strength, be specially adapted to sewing up the higher field of requirement of strength, there is wide market prospects and satisfied economic benefit.
Claims (6)
1. the production method of the leather base cloth of a high sewing strength,------soft--napping--shapes in dyeing in cleaning to comprise destarch, it is characterized in that: destarch adopts oxidation destarch method, every premium on currency add by 35% hydrogen peroxide 5 ~ 10g, effectively bromine concentration be the sodium bromite solution of 5 ~ 15g, the desizing agent that forms of 10 ~ 20g sheet alkali, first destarch carries out normal temperature destarch, the temperature of normal temperature destarch is 10 ~ 30 DEG C, the speed of a motor vehicle is 30 ~ 40m/min, then high temperature destarch is carried out, the temperature of high temperature destarch is 90 ~ 100 DEG C, and the speed of a motor vehicle is 60 ~ 80m/min.
2. the production method of the leather base cloth of a kind of high sewing strength according to claim 1, it is characterized in that: described normal temperature destarch divides 2 roads to carry out, described high temperature destarch divides 3 roads to carry out.
3. the production method of the leather base cloth of a kind of high sewing strength according to claim 1 and 2, is characterized in that: described cleaning step employing temperature is that the hot-fluid water of 50 ~ 70 DEG C cleans 2 roads, and the speed of a motor vehicle is 10 ~ 20m/min.
4. the production method of the leather base cloth of a kind of high sewing strength according to claim 1-3, is characterized in that: add oligomerization acrylic acid series chelated dispersants 1 ~ 2g/L in described staining procedure.
5. the production method of the leather base cloth of a kind of high sewing strength according to claim 1-3, it is characterized in that: in described soft step, every premium on currency adds 14 ~ 16 gram of 820 softener and 7 ~ 8 gram of 920 softener combination, and temperature is 40 ~ 50 DEG C, and the speed of a motor vehicle is 20 ~ 30m/min.
6. the production method of the leather base cloth of a kind of high sewing strength according to claim 1-3, it is characterized in that: described napping step divides 6 road nappings, adopt a light Duola, the burr of every square centimeter controls at 25000 ~ 35000, and napping pile thickness controls between 0.60 ~ 0.65mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765203.4A CN105442215A (en) | 2015-11-11 | 2015-11-11 | Method for producing leather base cloth with high stitching strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765203.4A CN105442215A (en) | 2015-11-11 | 2015-11-11 | Method for producing leather base cloth with high stitching strength |
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| CN105442215A true CN105442215A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510765203.4A Pending CN105442215A (en) | 2015-11-11 | 2015-11-11 | Method for producing leather base cloth with high stitching strength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725137A (en) * | 2019-10-17 | 2020-01-24 | 嘉兴市蓝蝶服饰有限公司 | Printing and dyeing process for underwear fabric |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427409A (en) * | 1982-06-14 | 1984-01-24 | United Merchants And Manufactures, Inc. | Method for preparation of fabrics |
| CN101319445A (en) * | 2007-06-10 | 2008-12-10 | 湖北金福祥纺织有限公司 | Leather base cloth with high sewing strength |
| CN102817246A (en) * | 2012-08-30 | 2012-12-12 | 无锡新德印染制品有限公司 | Desizing fluid for pretreatment of cotton woven fabric |
-
2015
- 2015-11-11 CN CN201510765203.4A patent/CN105442215A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427409A (en) * | 1982-06-14 | 1984-01-24 | United Merchants And Manufactures, Inc. | Method for preparation of fabrics |
| CN101319445A (en) * | 2007-06-10 | 2008-12-10 | 湖北金福祥纺织有限公司 | Leather base cloth with high sewing strength |
| CN102817246A (en) * | 2012-08-30 | 2012-12-12 | 无锡新德印染制品有限公司 | Desizing fluid for pretreatment of cotton woven fabric |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725137A (en) * | 2019-10-17 | 2020-01-24 | 嘉兴市蓝蝶服饰有限公司 | Printing and dyeing process for underwear fabric |
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