CN114790598A - Preparation method of thin elastic double-faced woolen cloth - Google Patents
Preparation method of thin elastic double-faced woolen cloth Download PDFInfo
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Abstract
The application relates to the technical field of fabrics, and particularly discloses a preparation method of a thin elastic double-faced woolen cloth, which specifically comprises the following preparation steps: firstly, pretreating wool, selecting wool worsted to prepare wool yarn as warp yarn, selecting wool and elastic yarn, twisting two strands of spun yarn and worsted to prepare yarn as weft yarn; preparing grey cloth by adopting 2/2 double-layer tissues; and finally, carrying out primary sizing, fulling, napping, shearing and burling on the grey cloth, then carrying out high-temperature sizing, ironing and shearing, and finally carrying out low-temperature sizing and decating to obtain the thin elastic double-faced woolen cloth. In the application, coffee carbon fibers can be added into the inner warp yarns and polypropylene filaments can be added into the surface warp yarns in the preparation process. The scheme is simple in preparation method and low in preparation cost, and the prepared thin elastic double-faced woolen cloth is fine in woolen cloth surface, soft in hand feeling, excellent in elasticity, breathable, light, thin, good in antibacterial and antistatic properties, and realizes the function of double-faced special effect.
Description
Technical Field
The application relates to the technical field of fabrics, in particular to a preparation method of a thin elastic double-faced woolen cloth.
Background
In the late autumn and winter, people increasingly like to select the woolen coat, and compared with cotton coats and down coats, the woolen coat can resist severe cold, and more advantages are that various styles can be designed, and the pursuit of people for fashion can be met. However, in recent years, the woolen fabric is lack of change, consumers gradually develop visual fatigue, and then the double-faced woolen cloth starts to enter the visual field of people.
The double-faced woolen goods in the market are produced by roughly spinning 12/1-13/1 or by combining refined spinning 48/2 with roughly spinning 12/1-13/1, the gram weight of the fabric is between 700-35900 g/m, the fabric is relatively thick, and the wearing comfort is poor. Thus, a small amount of thin double-faced woolen cloth produced by the finish spinning of 60/2-80/2 is available on the market, and the gram weight is between 500 and 700 g/m. However, the application of the elastic yarn in the rough spinning is limited by the technology at present, and the overall performance of the double-faced woolen cloth manufactured by the worsted spinning is reduced after the finishing process. And the double-faced woolen cloth prepared by the method has the problem of no elasticity, so that the wearing comfort of people is greatly reduced.
In the related art, the elastic double-faced woolen goods are a technical blank, and the market has great demand for thin elastic double-faced woolen goods. Therefore, how to realize lightness and thinness and have good elasticity of the double-faced woolen fabric is a problem which needs to be solved urgently at present.
Disclosure of Invention
In order to solve the problems of heavy fabric, no elasticity and the like of the existing double-faced woolen cloth, the application provides a preparation method of the thin elastic double-faced woolen cloth.
The application provides a preparation method of thin elastic double-faced woolen goods, which adopts the following technical scheme:
the preparation method of the thin elastic double-faced woolen goods specifically comprises the following preparation steps:
s1, spun yarn: selecting 60/2-70/2 wool yarns made of wool as warp yarns; wool and elastic yarn are selected, and two strands of spun yarn are twisted to obtain 65/2-75/2 yarn as weft yarn;
s2, weaving: preparing grey cloth by adopting 2/2 double-layer weave for the warp yarns and the weft yarns prepared by the S1;
s3, after finishing: carrying out primary shaping, high-temperature shaping and low-temperature shaping treatment on the gray fabric prepared in the step S2 to obtain the thin elastic double-faced woolen cloth; wherein, the initial sizing: the temperature is 180-190 ℃, and the speed is 5-10 m/min; high-temperature setting: the temperature is 190-200 ℃, and the speed is 4-8 m/min; and (3) low-temperature setting: the temperature is 180 ℃ and 190 ℃, and the vehicle speed is 5-10 m/min.
By adopting the technical scheme, in the preparation process, the temperature and the vehicle speed of relevant procedures of grey cloth primary sizing, high-temperature sizing and low-temperature sizing are controlled, so that the prepared double-faced woolen cloth is light, thin and elastic, and has stable elasticity, excellent crease resistance, good rebound resilience, low steam shrinkage and low water shrinkage. In addition, compared with the rough spinning yarn in the prior art, the warp and weft yarns are prepared by adopting the fine spinning process, so that the mechanical properties of the warp and weft yarns, such as strength, elongation at break and the like, are improved, the weaving efficiency of the warp and weft yarns is further improved, and the prepared double-faced woolen cloth has good mechanical properties.
The after-finishing process of this application, through primary forming, high temperature design and low temperature design cubic processing grey cloth to set up the temperature and the speed of a motor vehicle of cubic design, effectively avoided prior art, the problem that the two-sided woollen of worsted yarn descends through after-finishing wholeness ability, the two-sided woollen elasticity that this application finally made is excellent, and the size is stable good, soft handle.
Preferably, the wool selected for the yarn in the step S1 is fine-count Australian wool with the fineness of 15-20 μm; the wool selected by the weft yarn is fine count full mercerized wool with the fineness of 15-20 mu m, the elastic yarn selected by the weft yarn is spandex elastic core-spun yarn which is prepared by using fine count full mercerized wool with the fineness of 15-20 mu m as outer layer covering yarn and spandex with the fineness of 8-10 mu m as core yarn, and the covering rate is 30%.
Preferably, the wool selected for the yarn in step S1 is fine count Australian wool with a fineness of 17.5 μm, the wool selected for the weft yarn is fine count full mercerized wool with a fineness of 17.5 μm, the elastic yarn selected for the weft yarn is spandex stretch covering yarn prepared by using fine count full mercerized wool with a fineness of 17.5 μm as an outer covering yarn and using spandex with a fineness of 9 μm as a core yarn, and the covering rate is 30%.
By adopting the technical scheme, the Australian wool has outstanding heat retention performance, excellent moisture absorption and air permeability, soft luster, fineness and softness of the full mercerized wool, and excellent anti-shrinkage and anti-pilling characteristics; the Australian wool and the full-mercerized wool are mixed to be used as the raw materials of the warp and weft yarns, so that the prepared double-faced woolen cloth has good heat retention, moisture absorption and air permeability, good shrinkage resistance and pilling resistance and excellent comprehensive mechanical property. The weft yarn is prepared by mixing and twisting wool and elastic yarn, so that the prepared double-faced woolen cloth has excellent elasticity, silky handfeel and good shape retention.
According to the double-faced woolen goods, the fineness of the wool and the spandex is controlled, so that the prepared double-faced woolen goods have excellent heat preservation performance and good elasticity. When the warp yarn is fine count Australian wool with the fineness of 17.5 microns, the weft yarn is fine count full mercerized wool with the fineness of 17.5 microns, meanwhile, the weft yarn is spandex stretch covering yarn which is made of fine count full mercerized wool with the fineness of 17.5 microns and spandex with the fineness of 9 microns as core yarn, and the covering rate is 30%, the comprehensive performance of the manufactured double-faced woolen is optimal.
Preferably, the warp yarns in step S1 are divided into inner warp yarns and outer warp yarns, and the weft yarns are divided into inner weft yarns and outer weft yarns.
Preferably, the inner warp is coffee carbon fiber/Australian wool core-spun yarn, which is made by taking Australian wool with the fineness of 17.5 microns as an outer covering yarn and coffee carbon fiber with the fineness of 10.5 microns as a core yarn;
the surface warp yarn is a wool/polypropylene blended yarn, and is prepared by blending Australian wool with the fineness of 17.5 mu m and polypropylene filament with the fineness of 10.5 mu m.
Preferably, the inner weft yarn and the outer weft yarn are prepared by mixing and twisting 17.5 mu m fine count full mercerized wool and elastic yarn, wherein the elastic yarn is spandex stretch covering yarn prepared by using 17.5 mu m fine count full mercerized wool as an outer layer covering yarn and 9 mu m spandex as a core yarn, and the covering rate is 30%.
By adopting the technical scheme, the coffee carbon fiber/Australian wool core spun yarn is used as the lining warp yarn, so that the inner layer of the prepared double-faced woolen cloth is soft and fine in hand feeling, skin-friendly, remarkable in antibacterial and deodorizing functions, and also has a self-heating function. In addition, the wool/polypropylene blended yarn is used as surface warp yarns, so that the surface layer of the manufactured double-faced woolen cloth has a hydrophobic function, and meanwhile, the polypropylene fiber is low in density and light in weight, so that the double-faced woolen cloth becomes light and thin, and the wearing comfort level is improved. Two layers of tissues are formed by the self-heating inner layer and the hydrophobic surface layer, so that the double-faced woolen cloth has a double-faced different-effect function.
Preferably, the preparation method of the thin elastic double-faced woolen goods specifically comprises the following preparation steps:
s1, spun yarn: coating the coffee carbon fiber core yarn and the Australian wool outer layer coating yarn according to the coating rate of 30-40% to obtain 60/2-70/2 coffee carbon fiber/Australian wool core-coated yarn as the inner warp yarn; blending Australian wool and polypropylene filaments according to the blending ratio of (30/70) - (40/60) to obtain a wool/polypropylene blended yarn of 60/2-70/2 as a surface warp yarn; mixing and twisting full mercerized wool and elastic yarn to obtain 65/2-75/2 yarn as inner weft yarn and outer weft yarn;
s2, weaving: forming an inner layer by using the inner warp yarns and the inner weft yarns prepared in the S1, forming a surface layer by using the surface warp yarns and the surface weft yarns, and forming a double-sided grey cloth by using a 2/2 double-layer structure on the surface layer and the inner layer;
s3, post-finishing: and (4) carrying out primary setting, high-temperature setting and low-temperature setting treatment on the grey cloth to obtain the thin elastic double-faced woolen cloth. Wherein, the initial sizing: the temperature is 183-188 ℃, and the vehicle speed is 6-9 m/min; high-temperature shaping: the temperature is 190-195 ℃ and the speed is 5-7 m/min; and (3) low-temperature setting: the temperature is 183-188 ℃, and the vehicle speed is 7-9 m/min.
By adopting the technical scheme, in the preparation process, the prepared double-faced woolen cloth has the function of double-faced special effect by controlling the technological parameters such as raw material selection, the coating rate of the inner warp yarns, the blending ratio of the surface warp yarns, the number of the inner and outer warp (weft) yarns, the setting temperature, the speed and the like, and the anti-wrinkle performance of the double-faced woolen cloth is improved.
Preferably, the preparation method of the thin elastic double-faced woolen goods further comprises a wool pretreatment process, and the specific operations are as follows: adding wool into the soaking solution by adopting a soaking mode, soaking for 30-60min, then placing in a drying oven, drying for 30-60min at 40-60 ℃ to prepare pretreated wool, and then using the pretreated wool in the subsequent spinning process.
Preferably, the soaking solution comprises the following raw materials in parts by weight: 1-5 parts of hydrogen peroxide, 1-3 parts of 3wt% sodium hydrogen oxalate solution, 6-10 parts of 60wt% silver nitrate solution, 6-10 parts of nano titanium dioxide and 30-40 parts of silane coupling agent.
By adopting the technical scheme, hydrogen peroxide, sodium hydrogen oxalate solution, silver nitrate solution, nano titanium dioxide, silane coupling agent and other raw materials are adopted to prepare soaking solution, wool is added into the soaking solution, and the scale layer structure on the surface of the wool fiber is changed under the combined action of the hydrogen peroxide and the sodium hydrogen oxalate in the soaking solution, so that the felting resistance of the wool is improved; silver ions and nano silicon dioxide are loaded on wool through a silane coupling agent, so that the wool has excellent antibacterial and antistatic properties. The double-faced woolen goods finally prepared by the application have soft hand feeling, excellent elasticity and remarkable antibacterial and antistatic properties.
Preferably, in the preparation method of the thin elastic double-faced woolen goods, the post-finishing process in the step S3 specifically includes: the method comprises the following steps of primary sizing, fulling, napping, shearing, burling of grey cloth, high-temperature sizing, ironing and shearing, and low-temperature sizing and decating.
By adopting the technical scheme, the three shaping processes are added with the processes of shrinking, napping, shearing and burling, ironing, steaming and the like, so that the prepared double-faced woolen cloth has a fine and clean woolen cloth surface, smooth hand feeling, light weight, softness and excellent elasticity.
In summary, the present application has the following beneficial effects:
1. the Australian wool, the full-mercerized wool and the elastic yarns are selected as raw materials, the warp yarns and the weft yarns are manufactured through a spinning process, and after grey cloth is manufactured, the grey cloth is subjected to primary forming, high-temperature forming and low-temperature forming for three times, so that the manufactured double-faced woolen cloth is good in heat retention, moisture absorption and breathability, light, thin and elastic, stable in elasticity, excellent in crease resistance, and low in steam shrinkage and water shrinkage.
2. Coffee carbon fiber/Australian wool core spun yarn is selected as lining warp yarn, and wool/polypropylene blended yarn is used as surface warp yarn, so that the lining layer of the manufactured double-faced woolen cloth has a self-heating function, the surface layer has a hydrophobic function, and the double-faced woolen cloth has a double-faced different-effect function.
3. The Australian wool and full-mercerized wool are pretreated, so that the prepared double-faced wool is soft in handfeel, excellent in elasticity, excellent in antibacterial and anti-static performances, and the antibacterial rate of the double-faced wool is up to 97%. In addition, the post-treatment process is also added with the processes of fulling, napping, shearing, burling, ironing, decating and the like, so that the double-faced woolen cloth has fine woolen surface and soft hand feeling.
4. The preparation method is simple, the preparation cost is low, the gram weight of the prepared double-faced woolen cloth is between 500-650g/m, the elasticity is excellent, the double-faced woolen cloth is breathable, light and thin, and has the functions of antibiosis and antistatic, and double-faced effect is realized.
Detailed Description
The present application will be described in further detail with reference to examples.
Examples 1-9 provide a method for making a thin stretch tweed, which is described below with reference to example 1.
Example 1
The preparation method of the thin elastic double-faced woolen goods specifically comprises the following preparation steps:
s1, spun yarn: 60/2 wool yarns made of fine count Australian wool with the fineness of 15 mu m are selected as warp yarns; selecting fine count full mercerized wool with the fineness of 15 mu m and elastic yarn, twisting the two spun yarns to prepare 65/2 yarn as weft yarn, wherein the elastic yarn is spandex stretch covering yarn prepared by using the fine count full mercerized wool with the fineness of 15 mu m as outer-layer covering yarn and using spandex with the fineness of 8 mu m as core yarn, and the covering rate is 30%;
s2, weaving: preparing grey cloth by adopting 2/2 double-layer weave for the warp yarns and the weft yarns prepared by the S1;
s3, after finishing: the grey cloth prepared in the S2 is firstly subjected to primary shaping at the temperature of 180 ℃ and the vehicle speed of 5m/min, then subjected to fulling, napping, shearing and fruit pricking, then subjected to high-temperature shaping at the temperature of 190 ℃ and the vehicle speed of 4m/min, then subjected to ironing and shearing, finally subjected to low-temperature shaping at the temperature of 180 ℃ and the vehicle speed of 5m/min, and then subjected to decating to obtain the double-faced woolen cloth.
Examples 2 and 3 are the same as example 1 except that: the raw materials have different selected fineness and different process parameters in the preparation process, and the details are shown in table 1.
Table 1:
example 4
A preparation method of thin elastic double-faced woolen goods specifically comprises the following preparation steps:
s1, spinning: coating the outer layer of the Australian wool with the fineness of 17.5 microns and the core yarn of coffee carbon fiber with the fineness of 10.5 microns according to the coating rate of 40% to obtain 60/2 coffee carbon fiber/Australian wool core yarn as the inner warp yarn;
the Australian wool with the fineness of 17.5 microns and the polypropylene filament with the fineness of 10.5 microns are blended according to the blending ratio of 40/60 to obtain 60/2 wool/polypropylene blended yarn as surface warp;
the method comprises the following steps of (1) mixing and twisting fine count full mercerized wool with the fineness of 17.5 mu m and elastic yarn to prepare 65/2 yarn serving as inner weft yarn and outer weft yarn, wherein the elastic yarn is spandex elastic core-spun yarn prepared by using the fine count full mercerized wool with the fineness of 17.5 mu m as outer-layer covering yarn and using spandex with the fineness of 9 mu m as core yarn, and the covering rate is 30%;
s2, weaving: forming an inner layer by the inner warp yarns and the inner weft yarns prepared in the step S1, forming a surface layer by the surface warp yarns and the surface weft yarns, and forming a double-sided grey cloth by the surface layer and the inner layer by adopting a 2/2 double-layer structure;
s3, post-finishing: primarily shaping the gray fabric prepared in the step S2 at the temperature of 183 ℃ and the vehicle speed of 6m/min, then performing fulling, napping, shearing and burling, then performing high-temperature shaping at the temperature of 190 ℃ and the vehicle speed of 5m/min, then performing ironing and shearing, finally performing low-temperature shaping at the temperature of 183 ℃ and the vehicle speed of 7m/min, and then performing decating to obtain the double-faced woolen.
Examples 5 and 6 are the same as example 4 except that: the process parameters in the preparation process are different, and are specifically shown in table 2.
Table 2:
example 7
The preparation method of the thin elastic double-faced woolen cloth further comprises a wool pretreatment process, and the preparation method specifically comprises the following operations:
uniformly mixing 1kg of hydrogen peroxide, 1kg of 3wt% of sodium hydrogen oxalate solution, 6kg of 60wt% of silver nitrate solution, 6kg of nano titanium dioxide and 30kg of silane coupling agent to form a soaking solution, adding the Australian wool and the full-mercerized wool into the soaking solution, soaking for 30min, finally placing in a drying oven, and drying for 30min at the temperature of 60 ℃ to obtain the pretreated wool. The pretreated wool was subjected to the preparation procedure of experimental example 5 to obtain a double-faced woolen cloth.
Examples 8 and 9 are the same as example 7 except that: the quality of the raw materials and the process parameters in the preparation process are different, and are shown in table 3.
Table 3:
in order to verify the performance of the thin elastic double-faced woolen cloth provided by the application, the applicant sets comparative examples 1 to 11, wherein:
comparative example 1, like example 1, differs only in that: the wool in the warp and weft is selected from fine-count full mercerized wool with the fineness of 15 mu m.
Comparative example 2, the same as example 1, except that: the wool in the warp and weft is fine-count Australian wool with the fineness of 15 mu m.
Comparative example 3, like example 1, differs only in that: the weft is made of only fine-count full mercerized wool with the fineness of 15 mu m.
Comparative example 4, like example 1, differs only in that: the post-finishing in step S3 is changed to: the gray fabric prepared in the S2 is firstly subjected to primary shaping at the temperature of 180 ℃ and the vehicle speed of 5m/min, then subjected to fulling, napping, shearing and burling, then subjected to high-temperature shaping at the temperature of 190 ℃ and the vehicle speed of 4m/min, and then subjected to ironing shearing and decating to obtain the double-faced woolen cloth.
Comparative example 5, like example 1, differs only in that: the post-finishing in step S3 is changed to: primarily setting the gray fabric prepared in the step S2 at the temperature of 180 ℃ and the vehicle speed of 5m/min, then performing fulling, napping, shearing, burling and hot shearing, finally performing low-temperature setting at the temperature of 180 ℃ and the vehicle speed of 5m/min, and then performing decating to obtain the double-faced woolen.
Comparative example 6, like example 1, differs only in that: the post-finishing in step S3 is changed to: the grey cloth prepared in the S2 is firstly subjected to primary shaping at the temperature of 180 ℃ and the vehicle speed of 5m/min, then subjected to fulling, napping, shearing and fruit stabbing, then subjected to low-temperature shaping at the temperature of 180 ℃ and the vehicle speed of 4m/min, then subjected to ironing and shearing, finally subjected to low-temperature shaping at the temperature of 180 ℃ and the vehicle speed of 5m/min, and then subjected to decating to obtain the double-faced woolen cloth.
Comparative example 7, like example 1, differs only in that: the post-finishing in step S3 is changed to: primarily shaping the gray fabric prepared in the step S2 at the temperature of 190 ℃ at the speed of 5m/min, then performing fulling, napping, shearing and burling, then performing high-temperature shaping at the temperature of 190 ℃ at the speed of 4m/min, then performing ironing and shearing, finally performing low-temperature shaping at the temperature of 190 ℃ at the speed of 5m/min, and then performing decating to obtain the double-faced woolen.
Comparative example 8, like example 5, differs only in that: the inner warp is made of coffee carbon fiber with the fineness of 10.5 mu m.
Comparative example 9, like example 5, except that: the surface warp is made of polypropylene filament with 10.5 micron fineness.
Comparative example 10, like example 7, differs in that: the soaking solution does not contain hydrogen peroxide.
Comparative example 11, like example 7, except that: the soak solution does not contain sodium hydrogen oxalate solution.
The main properties of the thin elastic double-faced woolen goods in the examples 1 to 9 and the comparative examples 1 to 11 of the present application were respectively tested, and the following result parameters were obtained, and are specifically shown in table 4:
the bursting performance of the double-faced woolen cloth is tested according to the national standard GB/T19976-;
the wrinkle recovery angle of the double-faced woolen cloth is tested according to the national standard GB/T3819-1997;
the dimensional stability of the double-faced woolen cloth is tested by referring to the national standard GB/T8628-2013;
the test of the heat preservation performance of the double-faced woolen goods refers to the national standard GB/T11048-;
the self-heating performance of the double-faced woolen goods is tested according to the national standard GB/T29866-2013;
the surface moisture resistance of the double-faced woolen cloth is tested according to national standard GB/T4745-1997;
the softness of the double-faced woolen goods is tested, the softness of the double-faced woolen goods is evaluated by adopting a hand touch method, and the softness of the double-faced woolen goods is divided into 6 grades: 1 is very soft, 2 is soft, 3 is soft, 4 is hard, 5 is hard, 6 is hard.
Table 4:
as can be seen from the data shown in table 4 above: the thin elastic double-faced woolen cloth prepared in the embodiments 1 to 9 has the advantages of high bursting strength, rebound resilience of more than 95%, steam shrinkage and water-falling shrinkage within 3%, water-dipping grade of the surface layer of 4-5, good heat preservation performance and soft hand feeling.
From example 1 and comparative examples 1 and 2, it can be seen that: the double-faced woolen cloth has the best comprehensive performance in the embodiment 1, wherein the fine count Australian wool with the fineness of 15 microns is selected as the warp yarn in the embodiment 1, the fine count full mercerized wool with the fineness of 15 microns is selected as the weft yarn, the fine count full mercerized wool with the fineness of 15 microns is selected as the wool in the warp yarn and the weft yarn in the comparison example 1, and the fine count Australian wool with the fineness of 15 microns is selected as the wool in the warp yarn and the weft yarn in the comparison example 2.
From example 1 and comparative example 3, it can be seen that: the weft yarn in the embodiment 1 of the application is added with the elastic yarn, compared with the weft yarn in the comparative example 3, the weft yarn only adopts the fine count full mercerized wool with the fineness of 15 micrometers, the crease recovery angle of the double-faced woolen cloth prepared in the embodiment 1 is far larger than that of the comparative example 3, and the double-faced woolen cloth has outstanding crease resistance.
As can be seen from example 1 and comparative examples 4-7, the grey fabric in example 1 of the present application was subjected to three sizing passes, wherein the primary sizing pass is as follows: setting at high temperature and at the temperature of 180 ℃, the vehicle speed of 5 m/min: setting at a low temperature of 190 ℃, a vehicle speed of 4 m/min: the double-sided wool manufactured in example 1 is light, thin and soft, and has greatly improved bursting strength, wrinkle resistance and dimensional stability compared with the gray fabric in comparative examples 4 and 5 which is subjected to twice sizing at 180 ℃ and three times of low-temperature (180 ℃) sizing or high-temperature (190 ℃) sizing at 7 and 8.
From examples 2, 5 and comparative example 8 it can be seen that: the inner warp yarn in the embodiment 5 is made of the coffee carbon fiber/Australian wool core spun yarn, Australian wool is selected as the warp yarn in the embodiment 2, and the inner warp yarn in the proportion 8 is made of the coffee carbon fiber, so that the double-faced woolen cloth in the embodiment 5 has a good self-heating function, is remarkable in heat preservation performance, and is excellent in mechanical properties such as elasticity, bursting strength and the like.
From examples 2, 5 and comparative example 9 it can be seen that: in the application, the surface warp yarn in the embodiment 5 is wool/polypropylene blended yarn, compared with the warp yarn in the embodiment 2 which is Australian wool, and the surface warp yarn in the comparison example 8 is polypropylene filament yarn, the surface layer of the double-faced woolen cloth prepared in the embodiment 5 has obvious hydrophobic performance and light weight, and meanwhile, the double-faced woolen cloth also has good mechanical property.
From example 7 and comparative examples 10 and 11, it can be seen that: in the application, the raw materials of the soaking solution in the embodiment 7 are selected to be hydrogen peroxide and sodium hydrogen oxalate, and compared with the comparative examples 10 and 11 in which hydrogen peroxide or sodium hydrogen oxalate is independently selected and added into the soaking solution, the double-faced woolen cloth prepared in the embodiment 7 is good in dimensional stability and softer in texture.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The preparation method of the thin elastic double-faced woolen cloth is characterized by comprising the following preparation steps:
s1, spun yarn: selecting 60/2-70/2 wool yarns made of wool as warp yarns; wool and elastic yarn are selected, and two strands of spun yarn are twisted to obtain 65/2-75/2 yarn as weft yarn;
s2, weaving: preparing grey cloth by adopting 2/2 double-layer weave for the warp yarns and the weft yarns prepared by the S1;
s3, after finishing: carrying out primary shaping, high-temperature shaping and low-temperature shaping treatment on the gray fabric prepared in the step S2 to obtain the thin elastic double-faced woolen cloth; wherein, primary sizing: the temperature is 180 ℃ and 190 ℃, and the speed is 5-10 m/min; high-temperature shaping: the temperature is 190 ℃ and 200 ℃, and the speed is 4-8 m/min; and (3) low-temperature setting: the temperature is 180 ℃ and 190 ℃, and the vehicle speed is 5-10 m/min.
2. The method for preparing the thin elastic double-faced woolen cloth according to claim 1, wherein wool selected by the yarns in the step S1 is fine-count Australian wool with the fineness of 15-20 μm; the wool selected by the weft yarn is fine count full mercerized wool with the fineness of 15-20 mu m, the elastic yarn selected by the weft yarn is spandex elastic core-spun yarn which is prepared by using the fine count full mercerized wool with the fineness of 15-20 mu m as outer layer covering yarn and using spandex with the fineness of 8-10 mu m as core yarn, and the covering rate is 30%.
3. The method for preparing the thin elastic double-faced woolen cloth according to claim 1, wherein the warp yarns in the step S1 are divided into inner warp yarns and outer warp yarns, and the weft yarns are divided into inner weft yarns and outer weft yarns.
4. The method for preparing the thin elastic double-faced woolen cloth according to claim 3, wherein the lining warp yarns are coffee carbon fiber/Australian wool core-spun yarns, and are prepared by taking Australian wool with the fineness of 17.5 μm as an outer layer covering yarn and coffee carbon fiber with the fineness of 10.5 μm as a core yarn;
the surface warp yarn is a wool/polypropylene blended yarn, and is prepared by blending Australian wool with the fineness of 17.5 mu m and polypropylene filament with the fineness of 10.5 mu m.
5. The method for preparing the thin elastic double-faced woolen cloth according to claim 3, wherein the inner weft yarns and the outer weft yarns are prepared by mixing and twisting fine count full mercerized wool with the fineness of 17.5 μm and the elastic yarns, the elastic yarns are spandex elastic core-spun yarns prepared by taking the fine count full mercerized wool with the fineness of 17.5 μm as an outer layer covering yarn and taking spandex with the fineness of 9 μm as a core yarn, and the covering rate is 30%.
6. The preparation method of the thin elastic double-faced woolen cloth according to any one of claims 3 to 5, which is characterized by comprising the following preparation steps of:
s1, spinning: taking coffee carbon fiber as a core yarn and Australian wool as an outer layer wrapping yarn, and wrapping according to the wrapping rate of 30% -40% to obtain 60/2-70/2 coffee carbon fiber/Australian wool core wrapping yarn as an inner warp yarn; blending Australian wool and polypropylene filaments according to the blending ratio of (30/70) to (40/60) to obtain a wool/polypropylene blended yarn of 60/2-70/2 as a surface warp yarn; mixing and twisting full-mercerized wool and elastic yarn to obtain 65/2-75/2 yarns as inner weft yarns and outer weft yarns;
s2, weaving: forming an inner layer by using the inner warp yarns and the inner weft yarns prepared in the S1, forming a surface layer by using the surface warp yarns and the surface weft yarns, and forming a double-sided grey cloth by using a 2/2 double-layer structure on the surface layer and the inner layer;
s3, post-finishing: carrying out primary setting, high-temperature setting and low-temperature setting treatment on the grey cloth to obtain the thin elastic double-faced woolen cloth; wherein, the initial sizing: the temperature is 183-188 ℃, and the vehicle speed is 6-9 m/min; high-temperature shaping: the temperature is 190-195 ℃ and the speed is 5-7 m/min; and (3) low-temperature setting: the temperature is 183-188 ℃, and the vehicle speed is 7-9 m/min.
7. The preparation method of the thin elastic double-faced woolen goods according to claim 1, characterized by further comprising a wool pretreatment process, which comprises the following specific operations:
adding wool into the soaking solution by adopting a soaking mode, soaking for 30-60min, then placing in a drying oven, drying for 30-60min at 40-60 ℃ to prepare pretreated wool, and then using the pretreated wool in the subsequent spinning process.
8. The preparation method of the thin elastic double-faced woolen cloth according to claim 7, wherein the soaking solution comprises the following raw materials in parts by weight: 1-5 parts of hydrogen peroxide, 1-3 parts of 3wt% sodium hydrogen oxalate solution, 6-10 parts of 60wt% silver nitrate solution, 6-10 parts of nano titanium dioxide and 30-40 parts of silane coupling agent.
9. The method for preparing the thin elastic double-faced woolen cloth according to claim 1, wherein the post-finishing step in the step S3 specifically comprises the following steps: the method comprises the following steps of primary sizing, fulling, napping, shearing, burling, high-temperature sizing, ironing and shearing of gray fabric, and finally low-temperature sizing and decating.
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