CN114790598B - 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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- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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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-sided woolen, which comprises the following preparation steps: firstly, preprocessing wool, then selecting wool spinning to prepare wool yarn as warp yarn, selecting wool and elastic yarn, twisting two spun yarns, and spinning to prepare yarn as weft yarn; then adopting a 2/2 double-layer structure to prepare grey cloth; finally, the grey cloth is firstly formed, contracted, napped, sheared, thorn fruit is formed at a high temperature, the grey cloth is ironed, and finally, the thin elastic double-sided woolen is obtained after low-temperature forming and steaming. In the preparation process, coffee carbon fiber can be added into the inner warp, and polypropylene fiber filaments can be added into the surface warp. The preparation method of the scheme is simple, the preparation cost is low, the prepared thin elastic double-sided woolen cloth is fine in surface, soft in handfeel, excellent in elasticity, light and thin in ventilation, good in antibacterial and antistatic properties, and the double-sided abnormal effect function is realized.
Description
Technical Field
The application relates to the technical field of fabrics, in particular to a preparation method of thin elastic double-sided woolen.
Background
In late autumn and winter, people increasingly like to select woolen jackets, and compared with cotton coats and down jackets, the woolen jackets can resist severe cold, and have the advantages that various styles can be designed, so that pursuits of people on fashion can be met. However, in recent years, woolen fabrics lack changes, and consumers gradually develop visual fatigue, so that double-sided woolen starts to walk into the vision of people.
The existing double-sided woolen in the market is basically produced by using 12/1-13/1 of slub yarn or 48/2 of worsted yarn and 12/1-13/1 of slub yarn, the gram weight of the fabric is 700-900 g/m, the fabric is thick and heavy, and the wearing comfort is poor. Thus, small amounts of thin double-sided woolen produced entirely with 60/2-80/2 spun yarns have appeared on the market, with a grammage between 500 and 700 g/m. However, the application of the elastic yarn in the slub spinning is limited by the technology at present, and the whole performance of the double-sided woolen produced by the spun yarn is reduced after finishing process. The double-sided woolen cloth prepared by the method has the problem of no elasticity, and the wearing comfort of people is greatly reduced.
In the related art, the elastic double-sided woolen is always a technical blank, and the market has great demands on the thin elastic double-sided woolen. Therefore, how to realize light and thin double-faced woolen goods and good elasticity is a problem to be solved 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-sided woolen, which adopts the following technical scheme:
the preparation method of the thin elastic double-faced woolen cloth specifically comprises the following preparation steps:
s1, spinning yarn: selecting wool to prepare 60/2-70/2 wool yarns as warp yarns; selecting wool and elastic yarn, and twisting two strands of spun yarn to prepare 65/2-75/2 yarn as weft yarn;
s2, weaving: the warp yarn and the weft yarn which are manufactured in the step S1 are manufactured into grey cloth by adopting a 2/2 double-layer structure;
s3, after-treatment: performing primary shaping, high-temperature shaping and low-temperature shaping treatment on the grey cloth prepared in the step S2 to obtain the thin elastic double-sided woolen; wherein the primary shaping: the temperature is 180-190 ℃ and the speed is 5-10m/min; high-temperature shaping: the temperature is 190-200 ℃ and the vehicle speed is 4-8m/min; and (3) low-temperature shaping: the temperature is 180-190 ℃ and the speed is 5-10m/min.
By adopting the technical scheme, in the preparation process, the temperature and the vehicle speed of the procedures related to the primary shaping, the high-temperature shaping and the low-temperature shaping of the grey cloth are controlled by controlling the count of warp yarns and weft yarns, so that the prepared double-sided woolen is light, thin, elastic, stable in elasticity, excellent in crease resistance, good in rebound resilience and low in steaming shrinkage and water falling shrinkage. In addition, compared with the slub yarn in the prior art, the warp and weft yarn is prepared by adopting the worsted yarn procedure, so that the mechanical properties such as strength, elongation at break and the like of the warp and weft yarn are improved, the weaving efficiency of the warp and weft yarn is further improved, and the prepared double-sided woolen has good mechanical properties.
The after-finishing process of this application is through setting up, high temperature design and low temperature design tertiary grey cloth of handling to set up the temperature and the speed of a motor vehicle of tertiary design, effectively avoided among the prior art, the two-sided woolen of spinning yarn is through the problem that after-finishing wholeness can decline, the two-sided woolen elasticity of this application final preparation is excellent, and the stable in size is good, and is felt soft.
Preferably, the warp yarn in the step S1 is selected from fine Australian wool with 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 prepared by taking fine-count full-mercerized wool with the fineness of 15-20 mu m as an outer layer cladding yarn and spandex with the fineness of 8-10 mu m as a core yarn, and the cladding rate is 30%.
Further preferably, in the step S1, the warp yarn is selected from fine-count australian wool with a fineness of 17.5 μm, the weft yarn is selected from fine-count full-mercerized wool with a fineness of 17.5 μm, the elastic yarn is selected from ammonia wool elastic core spun yarn prepared by taking fine-count full-mercerized wool with a fineness of 17.5 μm as an outer layer coating yarn and spandex with a fineness of 9 μm as a core yarn, and the coating rate is 30%.
By adopting the technical scheme, the Australian wool has outstanding warmth retention property, excellent moisture absorption and air permeability, soft luster, fineness and softness of the full mercerized wool, and excellent shrink resistance and pilling resistance; the Australian wool and the full mercerized wool are used as raw materials of warp and weft yarns, so that the prepared double-sided woolen has good warmth retention property, moisture absorption and air permeability, good shrink resistance and pilling resistance, and excellent comprehensive mechanical properties. The weft yarn is made of wool and elastic yarn through mixed twisting, so that the prepared double-sided woolen has excellent elasticity, smooth hand feeling and good shape retention.
The fineness of the wool and the spandex is controlled, so that the prepared double-sided woolen has excellent heat preservation performance and good elasticity. Wherein, when the warp yarn adopts fine count Australian wool with the fineness of 17.5 mu m, the weft yarn adopts fine count full mercerized wool with the fineness of 17.5 mu m, meanwhile, the weft yarn adopts fine count full mercerized wool with the fineness of 17.5 mu m as outer layer cladding yarn, and the spandex with the fineness of 9 mu m is core yarn to prepare the spandex elastic core-spun yarn, and the cladding rate is 30%, the comprehensive performance of the prepared double-faced woolen cloth is optimal.
Preferably, 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.
Preferably, the inner warp yarn is coffee carbon fiber/Australian wool core-spun yarn, which is prepared by taking Australian wool with fineness of 17.5 mu m as outer layer cladding yarn and coffee carbon fiber with fineness of 10.5 mu m as 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 filaments with the fineness of 10.5 mu m.
Preferably, the inner weft yarn and the outer weft yarn are made of fine-count full-mercerized wool with the fineness of 17.5 mu m and elastic yarn by mixing and twisting, wherein the elastic yarn is an elastic polyurethane wool core-spun yarn which is made of polyurethane fiber with the fineness of 9 mu m as a core yarn and takes the fine-count full-mercerized wool with the fineness of 17.5 mu m as an outer layer coating yarn, and the coating rate is 30%.
By adopting the technical scheme, the coffee carbon fiber/Australian wool core-spun yarn is used as the inner warp yarn, so that the prepared double-faced woolen cloth has soft, fine and smooth inner hand feeling, remarkable antibacterial and deodorizing functions and self-heating functions. In addition, the wool/polypropylene blended yarn is used as the surface warp yarn, so that the surface layer of the manufactured double-sided woolen has a hydrophobic function, and meanwhile, the density of the polypropylene fiber is small, the weight is light, the double-sided woolen is light and thin, and the wearing comfort is improved. The self-heating inner layer and the hydrophobic surface layer form two layers of tissues, so that the double-sided woolen has the double-sided different effect function.
Preferably, the preparation method of the thin elastic double-sided woolen comprises the following preparation steps:
s1, spinning yarn: taking coffee carbon fiber as core yarn, australian wool as outer layer coating yarn, and coating according to the coating rate of 30% -40%, so as to obtain 60/2-70/2 coffee carbon fiber/Australian wool core-spun yarn as inner warp yarn; blending the Australian wool and the polypropylene fiber 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; twisting the fully mercerized wool and the elastic yarn to obtain 65/2-75/2 yarn as inner weft yarn and outer weft yarn;
s2, weaving: the S1 is made into lining warp yarns and lining weft yarns to form lining layers, surface warp yarns and surface weft yarns form surface layers, and 2/2 double-layer tissues are adopted to form grey cloth with a double-sided structure from the surface layers and the lining layers;
s3, after-treatment: the grey cloth is subjected to primary shaping, high-temperature shaping and low-temperature shaping treatment to obtain the thin elastic double-faced woolen goods. Wherein the primary shaping: the temperature is 183-188 ℃ and the speed is 6-9m/min; high-temperature shaping: the temperature is 190-195 ℃ and the vehicle speed is 5-7m/min; and (3) low-temperature shaping: the temperature is 183-188 ℃ and the speed is 7-9m/min.
By adopting the technical scheme, in the preparation process, the prepared double-sided woolen has double-sided abnormal effect function and the crease resistance of the double-sided woolen is improved by controlling the technological parameters such as raw material selection, coating rate of the inner warp yarns, blending ratio of the surface warp yarns, count of the inner surface warp (weft) yarns, shaping temperature, vehicle speed and the like.
Preferably, the preparation method of the thin elastic double-sided woolen cloth further comprises a wool pretreatment procedure, and the specific operation is as follows: soaking wool in the soaking solution for 30-60min, stoving at 40-60 deg.c for 30-60min to obtain pretreated wool, and subsequent spinning.
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, the soaking solution is prepared from the raw materials of hydrogen peroxide, sodium hydrogen oxalate solution, silver nitrate solution, nano titanium dioxide, silane coupling agent and the like, wool is added into the soaking solution, and the hydrogen peroxide and the sodium hydrogen oxalate in the soaking solution act together to change the scale layer structure of the surface of the wool fiber, so that the anti-felting property 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 cloth finally prepared by the method has 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 grey cloth is firstly formed, contracted, napped, sheared, pricked, formed at high temperature, ironed and sheared, and finally formed at low temperature, and the woolen is steamed.
By adopting the technical scheme, the procedures of wool contraction, napping, shearing, ironing, steaming and the like are added in the three shaping procedures, so that the woolen surface of the prepared double-sided woolen is fine, smooth, light, thin, soft and excellent in elasticity.
In summary, the present application has the following beneficial effects:
1. the method selects the Australian wool, the full mercerized wool and the elastic yarn as raw materials, adopts the spinning yarn procedure to prepare the warp yarn and the weft yarn, and performs primary shaping, high-temperature shaping and low-temperature shaping for three times after preparing the grey cloth, so that the prepared double-sided woolen has good warmth retention, moisture absorption and air permeability, is light, thin and elastic, has stable elasticity and excellent crease resistance, and has low steaming shrinkage and water falling shrinkage.
2. According to the double-faced woolen goods, the coffee carbon fiber/Australian wool core-spun yarn is selected as the inner warp yarn, the wool/acrylic blended yarn is selected as the surface warp yarn, the inner layer of the prepared double-faced woolen goods has a self-heating function, the surface layer has a hydrophobic function, and then the double-faced woolen goods has a double-faced abnormal effect function.
3. The Australian wool and the full mercerized wool are pretreated, so that the prepared double-faced woolen cloth is soft in handfeel, excellent in elasticity, excellent in antibacterial and antistatic performance, and the antibacterial rate reaches more than 97%. In addition, the post-treatment procedures of wool contraction, napping, shearing, thorn, ironing, steaming and the like are added, so that the surface of the double-sided woolen is fine and the hand feeling is soft.
4. The preparation method is simple, the preparation cost is low, the gram weight of the prepared double-sided woolen is between 500 and 650g/m, the elasticity is excellent, the ventilation is light and thin, the antibacterial and antistatic effects are realized, and the double-sided woolen has double-sided abnormal effect functions.
Detailed Description
The present application is described in further detail below with reference to examples.
Examples 1-9 provide a method for preparing a thin elastic double-sided woolen, and example 1 is given below.
Example 1
The preparation method of the thin elastic double-faced woolen cloth specifically comprises the following preparation steps:
s1, spinning yarn: selecting fine Australian wool with fineness of 15 mu m to prepare 60/2 wool yarn as warp yarn; selecting fine-count full-mercerized wool with the fineness of 15 mu m and elastic yarn, and twisting two strands of spun yarn to obtain 65/2 yarn serving as weft yarn, wherein the elastic yarn is spandex elastic core-spun yarn prepared by taking fine-count full-mercerized wool with the fineness of 15 mu m as outer layer cladding yarn and spandex with the fineness of 8 mu m as core yarn, and the cladding rate is 30%;
s2, weaving: the warp yarn and the weft yarn which are manufactured in the step S1 are manufactured into grey cloth by adopting a 2/2 double-layer structure;
s3, after-treatment: the grey cloth prepared in the step S2 is firstly subjected to primary shaping at the temperature of 180 ℃ and the speed of 5m/min, then subjected to wool shrinking, napping, shearing and thorn fruit, then subjected to high-temperature shaping at the temperature of 190 ℃ and the speed of 4m/min, then subjected to ironing and shearing, finally subjected to low-temperature shaping at the temperature of 180 ℃ and the speed of 5m/min, and then subjected to steaming to obtain the double-sided woolen cloth.
Examples 2 and 3 differ from example 1 only in that: the raw materials are different in fineness and different in technological parameters in the preparation process, and the specific fineness is shown in table 1.
Table 1:
example 4
The preparation method of the thin elastic double-faced woolen cloth specifically comprises the following preparation steps:
s1, spinning yarn: coating the outer layer coating yarn with Australian wool with fineness of 17.5 mu m and the core yarn with coffee carbon fiber with fineness of 10.5 mu m according to the coating rate of 40%, thereby obtaining 60/2 coffee carbon fiber/Australian wool core yarn as an inner warp yarn;
blending Australian wool with fineness of 17.5 mu m and polypropylene fiber filaments with fineness of 10.5 mu m according to a 40/60 blending ratio to obtain 60/2 wool/polypropylene blended yarn serving as surface warp yarns;
the yarn with the fineness of 17.5 mu m and the elastic yarn are mixed and twisted to prepare 65/2 yarn which is used as the inner weft yarn and the outer weft yarn, the elastic yarn is an elastic ammonia wool core-spun yarn which is prepared by taking the fine count and the full mercerized wool with the fineness of 17.5 mu m as the outer layer cladding yarn and taking spandex with the fineness of 9 mu m as the core yarn, and the cladding rate is 30%;
s2, weaving: the S1 is made into lining warp yarns and lining weft yarns to form lining layers, surface warp yarns and surface weft yarns form surface layers, and 2/2 double-layer tissues are adopted to form grey cloth with a double-sided structure from the surface layers and the lining layers;
s3, after-treatment: the grey cloth prepared in the step S2 is firstly subjected to primary shaping at the temperature of 183 ℃ and the speed of 6m/min, then subjected to wool shrinking, napping, shearing and thorn fruit, then subjected to high-temperature shaping at the temperature of 190 ℃ and the speed of 5m/min, then subjected to ironing and shearing, finally subjected to low-temperature shaping at the temperature of 183 ℃ and the speed of 7m/min, and then subjected to steaming to obtain the double-sided woolen cloth.
Examples 5 and 6, which differ from example 4 only in that: the process parameters in the preparation process are different, and are shown in table 2.
Table 2:
example 7
The preparation method of the thin elastic double-sided woolen comprises a wool pretreatment process, and specifically comprises the following steps:
firstly, uniformly mixing 1kg of hydrogen peroxide, 1kg of 3wt% sodium hydrogen oxalate solution, 6kg of 60wt% 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, and finally, placing in an oven and drying at 60 ℃ for 30min to obtain the pretreated wool. The pretreated wool was subjected to the preparation procedure of experimental example 5 to obtain double-faced woolen goods.
Examples 8 and 9, which differ from example 7 only in that: the quality of the raw materials and the technological parameters in the preparation process are different, and are shown in table 3.
Table 3:
to verify the performance of a thin elastic double-faced woolen provided herein, applicant set comparative examples 1-11, wherein:
comparative example 1, which differs from example 1 only in that: the wool in the warp yarn and the weft yarn is fine-count full mercerized wool with the fineness of 15 mu m.
Comparative example 2, which is identical to example 1, differs in that: the wool in the warp yarn and the weft yarn is fine-count Australian wool with fineness of 15 mu m.
Comparative example 3, which differs from example 1 only in that: the weft yarn is only made of fine-count full mercerized wool with fineness of 15 mu m.
Comparative example 4, which differs from example 1 only in that: the post-finishing in step S3 is changed to: and (3) primarily shaping the grey cloth prepared in the step (S2) at the temperature of 180 ℃ at the speed of 5m/min, carrying out wool contraction, napping, shearing and thorn fruit, carrying out high-temperature shaping at the temperature of 190 ℃ at the speed of 4m/min, and carrying out ironing and shearing and steaming to obtain the double-sided woolen.
Comparative example 5, which differs from example 1 only in that: the post-finishing in step S3 is changed to: and (3) primarily shaping the gray fabric prepared in the step (S2) at the temperature of 180 ℃ at the speed of 5m/min, carrying out wool contraction, napping, shearing, thorn fruit and ironing and shearing, and finally shaping at the temperature of 180 ℃ at the speed of 5m/min, and steaming to obtain the double-sided woolen.
Comparative example 6, which differs from example 1 only in that: the post-finishing in step S3 is changed to: the grey cloth prepared in the step S2 is firstly subjected to primary shaping at the temperature of 180 ℃ and the speed of 5m/min, then subjected to wool shrinking, napping, shearing and thorn fruit, then subjected to low-temperature shaping at the temperature of 180 ℃ and the speed of 4m/min, then subjected to ironing and shearing, finally subjected to low-temperature shaping at the temperature of 180 ℃ and the speed of 5m/min, and then subjected to steaming to obtain the double-sided woolen cloth.
Comparative example 7, which differs from example 1 only in that: the post-finishing in step S3 is changed to: and (3) primarily shaping the gray fabric prepared in the step (S2) at the temperature of 190 ℃ at the speed of 5m/min, carrying out wool contraction, napping, shearing and thorn fruit, carrying out high-temperature shaping at the temperature of 190 ℃ at the speed of 4m/min, carrying out ironing and shearing, carrying out low-temperature shaping at the temperature of 190 ℃ at the speed of 5m/min, and steaming to obtain the double-sided woolen.
Comparative example 8, which differs from example 5 only in that: the inner warp yarn is made of coffee carbon fiber with fineness of 10.5 μm.
Comparative example 9, which is identical to example 5, differs in that: the surface warp yarn is only made of polypropylene filaments with the fineness of 10.5 mu m.
Comparative example 10, which is identical to example 7, differs in that: the soaking solution does not contain hydrogen peroxide.
Comparative example 11, which is identical to example 7, differs in that: the soaking solution does not contain sodium hydrogen oxalate solution.
The main properties of the thin elastic double-faced woolen goods in examples 1 to 9 and comparative examples 1 to 11 of the present application were examined respectively, and the following result parameters were obtained, specifically, see table 4:
the bursting performance of the tested double-faced woolen goods is referred to national standard GB/T19976-2005;
the crease recovery angle of the double-sided woolen is tested by referring to national standard GB/T3819-1997;
the dimensional stability of the tested double-sided woolen is referred to national standard GB/T8628-2013;
the thermal insulation performance of the tested double-faced woolen goods is referred to national standard GB/T11048-2008;
the self-heating performance of the double-faced woolen goods is tested by referring to national standard GB/T29866-2013;
the surface moisture resistance of the double-faced woolen cloth is tested by referring to national standard GB/T4745-1997;
the softness of the double-sided woolen is tested, and is assessed by a hand touch method, and the softness of the double-sided woolen is classified into 6 grades: 1 is very soft, 2 is soft, 3 is softer, 4 is harder, 5 is hard, 6 is very hard.
Table 4:
as can be seen from the data shown in table 4: the thin elastic double-faced woolen goods prepared in the embodiments 1-9 are high in bursting strength, high in rebound resilience of over 95%, low in steaming shrinkage and falling water shrinkage of within 3%, high in heat preservation performance and soft in hand feeling, and the water wetting grade of the surface layer is 4-5.
From example 1 and comparative examples 1 and 2, it is understood that: in the embodiment 1 of the present application, the warp yarn uses fine count australia wool with fineness of 15 μm, the weft yarn uses fine count full mercerized wool with fineness of 15 μm, compared with the warp yarn and the weft yarn of comparative example 1, the warp yarn and the weft yarn of comparative example 2 use fine count australia wool with fineness of 15 μm, and the double-sided woolen obtained in the embodiment 1 has the best comprehensive performance.
As can be seen from example 1 and comparative example 3: compared with the weft yarn in comparative example 3, the weft yarn in example 1 only adopts the fine count full mercerized wool with the fineness of 15 mu m, and the crease recovery angle of the double-sided woolen manufactured in example 1 is far greater than that of the weft yarn in comparative example 3, so that the double-sided woolen has outstanding crease resistance.
As can be seen from example 1 and comparative examples 4 to 7, the gray fabric of example 1 of the present application was subjected to three setting, wherein the initial setting: the temperature is 180 ℃, the vehicle speed is 5m/min, and the high-temperature shaping is carried out: the temperature is 190 ℃, the vehicle speed is 4m/min, and the low-temperature shaping is carried out: the temperature was 180℃and the vehicle speed was 5m/min, and the greige goods of comparative examples 4 and 5 were subjected to setting only twice, and the greige goods of comparative examples 7 and 8 were subjected to setting at a low temperature (180 ℃) or setting at a high temperature (190 ℃) three times, the double-faced woolen goods produced in example 1 were light, thin and soft, and their bursting strength, wrinkle resistance, dimensional stability were greatly improved.
From examples 2, 5 and comparative example 8, it can be seen that: the warp yarn in the embodiment 5 of the application adopts the coffee carbon fiber/the Australian wool core spun yarn, the Australian wool is adopted as the warp yarn compared with the warp yarn in the embodiment 2, and the coffee carbon fiber is adopted as the warp yarn in the comparative example 8, so that the double-sided woolen cloth prepared in the embodiment 5 has good self-heating function and remarkable warmth retention property, and meanwhile, the mechanical properties such as elasticity and bursting strength of the double-sided woolen cloth are very excellent.
From examples 2, 5 and comparative example 9, it can be seen that: the surface warp yarn of the embodiment 5 of the application adopts wool/acrylic blended yarn, compared with the warp yarn of the embodiment 2, the surface warp yarn of the comparison example 8 adopts polypropylene filaments, the surface layer of the double-faced woolen cloth prepared in the embodiment 5 has remarkable hydrophobic property, lighter weight and good mechanical property.
From example 7 and comparative examples 10 and 11, it is understood that: in the embodiment 7 of the application, the hydrogen peroxide and the sodium hydrogen oxalate are selected as raw materials of the soaking solution, and compared with the comparative examples 10 and 11, the hydrogen peroxide or the sodium hydrogen oxalate is independently selected and added into the soaking solution, and the double-faced woolen cloth prepared in the embodiment 7 has the advantages of better dimensional stability and softer texture.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (3)
1. The preparation method of the thin elastic double-faced woolen cloth is characterized by comprising the following preparation steps of:
s1, spinning yarn: selecting wool to prepare 60/2-70/2 wool yarns as warp yarns; selecting wool and elastic yarn, and twisting two strands of spun yarn to prepare 65/2-75/2 yarn as weft yarn;
s2, weaving: the warp yarn and the weft yarn which are manufactured in the step S1 are manufactured into grey cloth by adopting a 2/2 double-layer structure;
s3, after-treatment: performing primary shaping, high-temperature shaping and low-temperature shaping treatment on the grey cloth prepared in the step S2 to obtain the thin elastic double-sided woolen; wherein the primary shaping: the temperature is 180-190 ℃ and the speed is 5-10m/min; high-temperature shaping: the temperature is 190-200 ℃ and the vehicle speed is 4-8m/min; and (3) low-temperature shaping: the temperature is 180-190 ℃ and the speed is 5-10m/min;
the warp yarn in the step S1 is divided into an inner warp yarn and an outer warp yarn, and the weft yarn is divided into an inner weft yarn and an outer weft yarn;
the wool is subjected to a pretreatment process, and the specific operation is as follows: soaking wool in the soaking solution for 30-60min, drying in an oven at 40-60deg.C for 30-60min to obtain pretreated wool, and then performing subsequent fine spinning;
the soaking liquid 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;
the inner warp yarn is coffee carbon fiber/Australian wool core-spun yarn, and is prepared by taking Australian wool with fineness of 17.5 mu m as outer layer cladding yarn and coffee carbon fiber with fineness of 10.5 mu m as 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 filaments with the fineness of 10.5 mu m;
the inner weft yarn and the outer weft yarn are made of fine-count full-mercerized wool with the fineness of 17.5 mu m and elastic yarn through mixed twisting, wherein the elastic yarn is a spandex elastic core-spun yarn which is made of spandex with the fineness of 9 mu m serving as an outer layer cladding yarn, and the cladding rate is 30%.
2. The method for preparing the thin elastic double-faced woolen goods according to claim 1, which is characterized by comprising the following preparation steps:
s1, spinning yarn: taking coffee carbon fiber as core yarn, australian wool as outer layer coating yarn, and coating according to the coating rate of 30% -40%, so as to obtain 60/2-70/2 coffee carbon fiber/Australian wool core-spun yarn as inner warp yarn; blending the Australian wool and the polypropylene fiber 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; twisting the fully mercerized wool and the elastic yarn to obtain 65/2-75/2 yarn as inner weft yarn and outer weft yarn;
s2, weaving: the S1 is made into lining warp yarns and lining weft yarns to form lining layers, surface warp yarns and surface weft yarns form surface layers, and 2/2 double-layer tissues are adopted to form grey cloth with a double-sided structure from the surface layers and the lining layers;
s3, after-treatment: the grey cloth is subjected to primary shaping, high-temperature shaping and low-temperature shaping treatment to obtain the thin elastic double-faced woolen cloth; wherein the primary shaping: the temperature is 183-188 ℃ and the speed is 6-9m/min; high-temperature shaping: the temperature is 190-195 ℃ and the vehicle speed is 5-7m/min; and (3) low-temperature shaping: the temperature is 183-188 ℃ and the speed is 7-9m/min.
3. The method for preparing a thin elastic double-faced woolen cloth according to claim 1, wherein the post-finishing process in step S3 specifically comprises: the grey cloth is firstly formed, contracted, napped, sheared, pricked, formed at high temperature, ironed and sheared, and finally formed at low temperature, and the woolen is steamed.
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