Preparation method of double warm-keeping fabric

Abstract

The invention discloses a preparation method of a double warm-keeping fabric, which comprises the following steps: (1) adding light-absorbing heating particles into a spinning solution, and controlling the shape of a spinning head to enable spinning to form hollow heating yarns; (2) weaving the hollow heating yarns prepared in the step (1) to obtain the light-absorbing heating fabric; (3) adding far-infrared heating particles into the membrane material stock solution to prepare a far-infrared temperature rise membrane stock solution, and preparing a far-infrared temperature rise membrane by adopting a roller coating stretching process; and (4) preparing the light-absorbing and heating fabric prepared in the step (2) and the far infrared temperature rise film prepared in the step (3) in a dispensing bonding manner to obtain the double-warm-keeping fabric. The fabric prepared by the preparation method disclosed by the invention has double warm-keeping functions, and by optimizing the yarn structure of the fabric and selecting a specific functional material, the warm-keeping performance is enhanced, and a better warm-keeping effect and wearing experience are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of textile fabrics and relates to a preparation method of a double warm-keeping fabric. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, the requirements for clothing, especially winter warm clothing, are getting higher and higher. Traditional warm clothing mainly relies on increasing the thickness of clothing to achieve the insulation effect, but this often makes it inconvenient to wear and restricts movement. Therefore, the development of new and efficient thermal insulation materials has become one of the important research directions of the textile industry.

[0003] In recent years, research on functional textiles has increased, among which the use of nanotechnology, phase change materials and other means to improve the thermal insulation performance of fabrics has become a hot topic. However, how to achieve efficient warmth retention while ensuring light weight, while taking into account aesthetics and practicality, is still the main challenge facing this field. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to improve the warmth retention of clothing fabrics and to provide a method for preparing a double warmth retention fabric.

[0005] Technical solution: A method for preparing a double thermal insulation fabric of the present invention comprises the following steps:

[0006] (1) adding light-absorbing and heat-generating particles into a spinning solution and controlling the shape of a spinning head to spin a hollow heat-generating yarn;

[0007] (2) weaving the hollow heating yarn obtained in step (1) to obtain a light-absorbing heating fabric;

[0008] (3) adding far-infrared heating particles into the membrane material stock solution to prepare the far-infrared temperature-rising membrane stock solution, and preparing the far-infrared temperature-rising membrane by a roll coating and stretching process;

[0009] (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

[0010] Furthermore, the light-absorbing and heat-generating particles added in step (1) include the following mass components: 2%-5% of silicon-boron polymer nanomaterials, 1%-3% of nano-ceramic materials, and 1%-2% of acidic hot lava materials.

[0011] Furthermore, the spinning solution in step (1) is a polyester melt.

[0012] Furthermore, the diameter of the silicon boron polymer nanomaterial is 200-500 nm.

[0013] Further, the nano-ceramic material is one or a mixture of several of kaolin, calcium carbonate, calcium metaborate, alumina, iron oxide, and manganese oxide.

[0014] Further, the mass percentage content of aluminosilicate in the acidic hot melt rock material is 6-15%, and the density is 0.4-1.5 g / cm3.

[0015] Further, the far-infrared temperature-rising film stock solution in step (3) includes the following mass components: far-infrared heating particles, 10%-20% of cross-linking agent polysiloxane, 3%-8% of surfactant, 8%-15% of dispersant, 15%-25% of binder, and the rest is polyurethane.

[0016] Further, the far-infrared heating particles include ceramic powder and volcanic rock.

[0017] Further, the dispersant includes one or a combination of fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid type, and polycarboxylic acid.

[0018] Further, the binder includes one or a combination of polyurethane, polyvinyl acetate, polyacrylate, and butadiene.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following remarkable advantages: (1) The double-layer thermal insulation fabric of this invention patent can not only effectively absorb external light (including visible light and near-infrared light) and convert it into heat energy to increase the surface temperature, but also release far-infrared rays through the inner layer to promote blood circulation in the human body, enhance the thermal insulation performance while maintaining good air permeability and comfort. Compared with traditional clothing fabrics, the thermal insulation performance is enhanced, and it has a double-layer thermal insulation function. Among them, the light absorption and heat generation temperature rise can reach 15°C, and the far-infrared temperature rise can reach 3.5°C;

[0020] (2) The dotting and bonding method enables the glue to fully penetrate into the fabric fibers under high temperature and pressure, forming a firm bonding effect. At the same time, it saves time and materials compared with the traditional fabric sewing method;

[0021] (3) Preparing the two new fabrics into a clothing fabric by the dotting and bonding method can make the appearance of the clothing more flat and beautiful, without obvious sewing marks, improving the process quality and efficiency. At the same time, it is applied to outdoor down jackets, and the dotting and bonding process provides good air permeability and ductility, ensuring the wearing state in various environments. Specific embodiments

[0022] The technical solutions of the present invention will be further described below through specific embodiments. Those skilled in the art should understand that the embodiments are only for helping to understand the present invention and should not be regarded as specific limitations of the present invention.

[0023] The experimental materials used in the embodiments and comparative examples of the present invention come from:

[0024] (1) Cross-linking agent: epoxy compound, manufacturer: Hubei Xinghengye, model: 110-18-9.

[0025] (2) Surfactants

[0026] Secondary alkyl sulfonate, manufacturer: Clariant, model: 68037-49-0;

[0027] Sulfonic fatty acid methyl ester sodium salt, manufacturer: Hubei Zhonglong Kangsheng, model: 93348-22-2.

[0028] (3) Dispersant

[0029] Fatty alcohol polyoxyethylene ether, manufacturer: Ron, model: R128348;

[0030] Fatty acid polyoxyethylene ester, manufacturer: Wuhan Jixinyibang, model: 106-08-1;

[0031] Polycarboxylic acid dispersant, manufacturer: Bangpu Chemical, model: BP5040.

[0032] (4) Adhesive

[0033] Polyurethane adhesive, manufacturer: Xinhui Chemical, model: Xh-fw201;

[0034] Polyvinyl acetate adhesive, manufacturer: Lianyungang Yinghui Adhesive Industry, model: BRJ-5010.

[0035] (5) Silicon boron polymer, manufacturer: Beijing Huawei Ruike Co., Ltd., model 12007-81-7

[0036] (6) Polysiloxane crosslinker, manufacturer: Anhui Sibao Silicone New Materials Co., Ltd., model GX-Si-28.

[0037] Example 1

[0038] A method for preparing a double thermal insulation fabric comprises the following steps:

[0039] (1) Add the following mass percentages of light-absorbing and heat-generating particles into the polyester melt, including: 3% silicon boron polymer nanomaterial, 2% nano ceramic material, and 2% acidic hot lava material, and control the shape of the spinning head to spin into a hollow heating yarn. The diameter of the silicon boron polymer nanomaterial is 200nm; the nano ceramic material is kaolin, calcium carbonate, calcium borate, aluminum oxide, iron oxide, and manganese oxide; the content of aluminosilicate in the acidic hot lava material is 6-15%, and the density is 0.4-1.5g / cm 3 .

[0040] (2) weaving the hollow heating yarn obtained in step (1) through warping and beating to form a fabric with light-absorbing and heating functions;

[0041] (3) Adding far-infrared heating particles to the membrane material stock solution to prepare the far-infrared temperature-rising membrane stock solution, and adopting the roller coating and stretching process to prepare the far-infrared temperature-rising membrane; the prepared far-infrared temperature-rising membrane stock solution comprises: far-infrared heating particles, 15% cross-linking agent polysiloxane, 5% surfactant, 10% dispersant, 20% adhesive, and the rest is polyurethane. Among them, the far-infrared heating particles are ceramic powder and volcanic rock; the dispersant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid, polycarboxylic acid; the adhesive is polyurethane, polyvinyl acetate, polyacrylate, butadiene.

[0042] (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

[0043] Step (4) The specific steps of bonding the above two fabrics by glue point bonding are as follows:

[0044] (4-1) Fabric pretreatment: Clean the down jacket fabric to remove dust and impurities on the surface, and cut the fabric as needed to ensure that the size and shape meet the design requirements;

[0045] (4-2) Screen printing: Install the prepared screen on the printing machine, adjust the position and alignment, pour liquid glue into the glue tank of the printing machine, adjust the amount and uniformity of the glue, use a scraper to print the glue through the screen onto the fabric to form a uniform small dot bonding pattern, the glue is specifically a water-based adhesive;

[0046] (4-3) Hot Press Bonding: Place the fabric and bonding fabric on the workbench of the hot press machine and adjust the position and alignment. Set the appropriate hot press temperature, pressure and time according to the characteristics of the glue and the material of the fabric. Start the hot press machine to perform the hot press bonding operation.

[0047] Example 2

[0048] A method for preparing a double thermal insulation fabric comprises the following steps:

[0049] (1) Add the following mass percentages of light-absorbing and heat-generating particles into a polyester melt, including: 2% silicon boron polymer nanomaterial, 1% nano ceramic material, and 2% acidic hot lava material, and control the shape of the spinning head to spin into a hollow heat-generating yarn. The diameter of the silicon boron polymer nanomaterial is 300nm, the nano ceramic material is kaolin, calcium carbonate, calcium borate, aluminum oxide, iron oxide, and manganese oxide, and the content of aluminosilicate in the acidic hot lava material is 6-15%, and the density is 0.4-1.5g / cm 3 .

[0050] (2) weaving the hollow heating yarn obtained in step (1) through warping and beating to form a fabric with light-absorbing and heating functions;

[0051] (3) Adding far-infrared heating particles to the original solution of the membrane material to prepare the original solution of the far-infrared temperature-rising membrane, and adopting the rolling coating and stretching process to prepare the far-infrared temperature-rising membrane; the components of the prepared original solution of the far-infrared temperature-rising membrane are: far-infrared heating particles, 10% cross-linking agent polysiloxane, 3% surfactant, 8% dispersant, 15% adhesive, and the rest is polyurethane. Among them, the far-infrared heating particles are ceramic powder and volcanic rock; the dispersant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid, polycarboxylic acid; the adhesive is polyurethane, polyvinyl acetate, polyacrylate, butadiene.

[0052] (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

[0053] Example 3

[0054] A method for preparing a double thermal insulation fabric comprises the following steps:

[0055] (1) Add the following mass percentages of light-absorbing and heat-generating particles into a polyester melt, including: 5% silicon boron polymer nanomaterial, 3% nano ceramic material, and 1% acidic hot lava material, and control the shape of the spinning head to spin into a hollow heat-generating yarn. The diameter of the silicon boron polymer nanomaterial is 400nm, the nano ceramic material is kaolin, calcium carbonate, calcium borate, aluminum oxide, iron oxide, and manganese oxide, and the content of aluminosilicate in the acidic hot lava material is 6-15%, and the density is 0.4-1.5g / cm 3 .

[0056] (2) weaving the hollow heating yarn obtained in step (1) through warping and beating to form a fabric with light-absorbing and heating functions;

[0057] (3) Adding far-infrared heating particles to the membrane material stock solution to prepare the far-infrared temperature-rising membrane stock solution, and adopting the roller coating and stretching process to prepare the far-infrared temperature-rising membrane; the far-infrared temperature-rising membrane stock solution comprises: far-infrared heating particles, 20% cross-linking agent polysiloxane, 8% surfactant, 15% dispersant, 25% adhesive, and the rest is polyurethane. Among them, the far-infrared heating particles are ceramic powder and volcanic rock; the dispersant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid, polycarboxylic acid; the adhesive is polyurethane, polyvinyl acetate, polyacrylate, butadiene.

[0058] (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

[0059] Example 4

[0060] A method for preparing a double thermal insulation fabric comprises the following steps:

[0061] (1) Add the following mass percentages of light-absorbing and heat-generating particles into a polyester melt, including: 4% silicon boron polymer nanomaterial, 3% nano ceramic material, and 2% acidic hot lava material, and control the shape of the spinning head to spin into a hollow heat-generating yarn. The diameter of the silicon boron polymer nanomaterial is 500nm, the nano ceramic material is kaolin, calcium carbonate, calcium borate, aluminum oxide, iron oxide, and manganese oxide, and the content of aluminosilicate in the acidic hot lava material is 6-15%, and the density is 0.4-1.5g / cm 3 .

[0062] (2) weaving the hollow heating yarn obtained in step (1) through warping and beating to form a fabric with light-absorbing and heating functions;

[0063] (3) Adding far-infrared heating particles to the membrane material stock solution to prepare the far-infrared temperature-rising membrane stock solution, and adopting the roller coating and stretching process to prepare the far-infrared temperature-rising membrane; the far-infrared temperature-rising membrane stock solution comprises: far-infrared heating particles, 12% cross-linking agent polysiloxane, 6% surfactant, 12% dispersant, 18% adhesive, and the rest is polyurethane. Among them, the far-infrared heating particles are ceramic powder and volcanic rock; the dispersant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid, polycarboxylic acid; the adhesive is polyurethane, polyvinyl acetate, polyacrylate, butadiene.

[0064] (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

[0065] Comparative Example 1

[0066] The remaining steps are the same as those in Example 1, except that no light-absorbing, heat-generating particles are added to the polyester melt in step (1).

[0067] Comparative Example 2

[0068] The remaining steps are the same as those in Example 1, except that in step (1), the heating yarn formed by spinning to form a hollow structure is replaced by spinning to prepare an ordinary yarn without a hollow structure.

[0069] Comparative Example 3

[0070] The remaining steps are the same as those in Example 1, except that no far-infrared heating particles are added to the membrane material stock solution in step (3).

[0071] Comparative Example 4

[0072] Ordinary warm fabric.

[0073] Test: The fabrics prepared in Examples 1-4 and Comparative Examples 1-3 were tested as follows according to the standard. The light absorption heat rise test method was based on GB / T 18319-2019, and the far-infrared temperature rise test method was based on GB / T 30127-2013. The test results are shown in Table 1.

[0074] Table 1:

[0075]

[0076]

[0077] Comparative Example 5

[0078] The remaining steps are the same as those in Example 1, except that the light-absorbing heat-generating particles added in step (1) are replaced by the following mass components: 8% silicon-boron polymer nanomaterials, 5% nano-ceramic materials, and 5% acidic hot lava materials. The results show that the strength of the hollow heat-generating yarn formed by spinning is reduced.

[0079] Comparative Example 6

[0080] The remaining steps are the same as those in Example 1, except that the far-infrared temperature rise film stock solution is replaced with the following mass components: 20% far-infrared heating particles, 25% cross-linking agent polysiloxane, 10% surfactant, 5% dispersant, 10% adhesive, and the rest is polyurethane. The results show that the far-infrared heating particles are partially agglomerated, and the strength of the prepared far-infrared temperature rise film is greatly reduced.

[0081] In summary, the double thermal insulation fabric prepared by the preparation method of the present invention can achieve a maximum temperature rise of 15°C by absorbing light and generating heat through reasonable proportions and processes, and a maximum temperature rise of 3.5°C by far infrared, which is far higher than other thermal insulation fabrics.

Claims

1. A method for preparing a double thermal insulation fabric, characterized in that: The steps include: (1) adding light-absorbing and heat-generating particles into a spinning solution and controlling the shape of a spinning head to spin a hollow heat-generating yarn; (2) weaving the hollow heating yarn obtained in step (1) to obtain a light-absorbing heating fabric; (3) adding far-infrared heating particles into the membrane material stock solution to prepare the far-infrared temperature-rising membrane stock solution, and preparing the far-infrared temperature-rising membrane by a roll coating and stretching process; (4) The light-absorbing heat-generating fabric prepared in step (2) and the far-infrared temperature-rising film prepared in step (3) are bonded by point gluing to obtain a double thermal insulation fabric.

2. The method for preparing the double thermal insulation fabric according to claim 1, characterized in that: The light-absorbing and heat-generating particles added in step (1) include the following mass components: 2%-5% of silicon-boron polymer nanomaterials, 1%-3% of nano-ceramic materials, and 1%-2% of acidic hot lava materials.

3. The method for preparing the double thermal insulation fabric according to claim 1, characterized in that: The spinning solution in step (1) is a polyester melt.

4. The method for preparing the double thermal insulation fabric according to claim 2, characterized in that: The diameter of the silicon boron polymer nanomaterial is 200-500nm.

5. The method for preparing the double thermal insulation fabric according to claim 2, characterized in that: The nano ceramic material is one or a mixture of kaolin, calcium carbonate, calcium borate, aluminum oxide, iron oxide and manganese oxide.

6. The method for preparing the double thermal insulation fabric according to claim 2, characterized in that: The mass percentage of aluminosilicate in the acidic hot lava material is 6-15%, and the density is 0.4-1.5 g / cm 3 .

7. The method for preparing the double thermal insulation fabric according to claim 1, characterized in that: In step (3), the far-infrared temperature-rising film stock solution comprises the following mass components: 10%-15% far-infrared heating particles, 10%-20% cross-linking agent polysiloxane, 3%-8% surfactant, 8%-15% dispersant, 15%-25% adhesive, and the rest is polyurethane.

8. The method for preparing the double thermal insulation fabric according to claim 7, characterized in that: The far-infrared heating particles include ceramic powder and volcanic rock.

9. The method for preparing the double thermal insulation fabric according to claim 7, characterized in that: The dispersant includes one or more combinations of fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester, naphthalene sulfonic acid, and polycarboxylic acid.

10. The method for preparing the double thermal insulation fabric according to claim 7, characterized in that: The adhesive includes one or more combinations of polyurethane, polyvinyl acetate, polyacrylate, and butadiene.

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