Moisture-absorbing and heating polar fleece fabric with high thermal insulation performance and production process thereof

Abstract

The invention provides a moisture-absorbing and heating polar fleece fabric with high thermal insulation performance and a production process thereof, and relates to the technical field of garment fabrics. According to the moisture-absorbing and heat-emitting polar fleece fabric with the high heat preservation performance and the production technology of the moisture-absorbing and heat-emitting polar fleece fabric, blended yarn is composed of various functional fibers, and the functional fibers comprise, by weight, 25% of wool, 30% of self-heating acrylic fibers, 25% of lyocell fibers and 20% of nylon. According to the invention, the advantages of each fiber are fully played through the component design of the fixed-spinning yarn and the scientific proportion, the defect of a single fiber is overcome, secondly, the static control method effectively reduces the generation of static electricity through the synergistic effect of nylon and lyocell, and finally, the thermal insulation performance and the hand feeling of the fabric are remarkably improved through the application of the two-side napping polar fleece process.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing fabrics, and specifically to a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process. Background Art

[0002] With the improvement of the national living standard, people's requirements for the quality of life are gradually increasing, including the demand for functional textiles and higher requirements for the comfort of fabrics. To meet the market demand, more and more functional textiles have been developed in the textile industry, such as cold-sensing moisture-absorbing and quick-drying fabrics, antibacterial fabrics, breathable water-repellent fabrics, warm and heat-generating fabrics, etc.

[0003] In the textile field, the research and development of functional fabrics has always been the focus of the industry, especially in clothing materials that pursue comfort, heat preservation, and moisture absorption and heat generation performance. Traditional warm fabrics usually rely on down or thick fiber structures, which can provide a certain degree of heat preservation effect, but often have problems such as large volume, poor air permeability, and poor wearing experience. In recent years, with the increasing demand for lightweight warm fabrics by consumers, developing new fabrics with both high heat preservation performance and comfort has become an urgent technical problem to be solved.

[0004] In the prior art, it is difficult for a single fiber material to simultaneously meet multiple functional requirements such as moisture absorption, heat generation, antibacterial, and high strength, and the simple blending method is prone to problems such as static electricity accumulation, insufficient yarn strength, and unstable overall performance of the fabric. In addition, although the traditional polar fleece fabric has a certain heat preservation effect, its clo value is low and it cannot meet the heat preservation performance requirements of lightweight down jackets.

[0005] Therefore, how to improve the functionality and practicality of the fabric through reasonable fiber ratio design and process optimization has become an important direction in current textile technology research and development. The present invention aims to solve the defects such as single function, prominent static electricity problems, and insufficient heat preservation performance existing in the prior art through an innovative blended yarn formula and double-sided brushing process. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process, which solves the problems existing in the prior polar fleece fabric in terms of heat preservation performance, moisture absorption, and antistatic performance.

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process, the blended yarn of which is composed of a variety of functional fibers by weight percentage, including: 25% wool, 30% self-heating acrylic fiber, 25% lyocell fiber, and 20% nylon.

[0008] Preferably, a production process for a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance is characterized by the following steps:

[0009] S1: Raw material selection and fixed spinning

[0010] Mix wool, self-heating acrylic, lyocell fiber and nylon fiber according to a set ratio, and prepare fixed spinning yarn through carding machine, drawing frame and ring spinning frame equipment;

[0011] S2: Weaving

[0012] Weave the fixed spinning yarn into grey cloth through knitting or weaving process;

[0013] S3: Pretreatment

[0014] Clean and bleach the grey cloth to remove impurities and improve the effect of subsequent processing;

[0015] S4: Raising on both sides

[0016] Use raising equipment to raise both sides of the fabric to form a uniform fluff layer;

[0017] S5: Post-finishing

[0018] Soften, shape and pre-shrink the fabric to optimize the hand feeling and appearance;

[0019] S6: Final inspection

[0020] Detect the performance indexes of the fabric such as clo value, moisture absorption and antistatic property to ensure that the product meets the design requirements.

[0021] Preferably, due to its natural curly structure and scale layer characteristics, the wool has good heat preservation performance and antibacterial effect, and can reduce heat loss and inhibit bacterial growth in low-temperature environment. The self-heating acrylic releases heat by absorbing moisture in the environment, thus enhancing the overall heat energy output of the fabric and strengthening the heat preservation effect. The lyocell fiber endows the fabric with excellent moisture absorption and breathability due to its high crystallinity and microporous structure, enabling moisture to diffuse quickly and keep the fabric dry. The nylon fiber improves the mechanical properties of the yarn through its high strength and wear resistance, and its moisture absorption also plays an auxiliary role in reducing static electricity generation.

[0022] Preferably, the nylon fiber enhances the strength of the yarn through the hydrogen bond action between its molecular chains, making up for the deficiency of the lyocell fiber in mechanical properties. The lyocell fiber adsorbs moisture in the environment through its hydrophilic groups to form a conductive channel, neutralizing the static electricity effect generated by the friction of the acrylic fiber.

[0023] Preferably, in step S4, during the brushing process, the fibers are pulled out and fluffed up, increasing the storage space for air, thereby enhancing the heat preservation performance. After brushing, the raising process is carried out to further refine and curl the fluff, forming uniform granular fluff, optimizing the hand feeling and appearance.

[0024] Preferably, in step S6, the clo value should reach 0.887, indicating its extremely high heat preservation performance. The moisture diffusion rate should exceed 0.2 grams per square meter per hour, and the static voltage should be lower than 500 volts.

[0025] The present invention provides a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process. It has the following beneficial effects:

[0026] Through the component design of the fixed-spun yarn, the present invention gives full play to the advantages of each fiber through scientific proportioning, overcomes the deficiencies of single fibers. Secondly, through the synergistic effect of nylon and lyocell, the electrostatic control method effectively reduces the generation of static electricity. Finally, the application of the double-sided brushing and raising process significantly improves the heat preservation performance and hand feeling of the fabric. Specific embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Example 1:

[0029] The embodiment of the present invention provides a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process. Its blended spun yarn is composed of various functional fibers by weight percentage, including: 25% wool, 30% self-heating acrylic fiber, 25% lyocell fiber, and 20% nylon.

[0030] A production process of a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance, characterized by including the following steps:

[0031] S1: Raw material selection and fixed spinning

[0032] Mix wool, self-heating acrylic fiber, lyocell fiber and nylon fiber according to the set proportion, and prepare fixed-spun yarn through carding machine, drawing frame and ring spinning frame equipment;

[0033] S2: Weaving

[0034] Weave the fixed-spun yarn into grey cloth through knitting or weaving process;

[0035] S3: Pretreatment

[0036] The grey fabric is cleaned and bleached to remove impurities and improve the effect of subsequent processing;

[0037] S4: Raising and Pilling on Both Sides

[0038] A raising machine is used to raise both sides of the fabric to form a uniform layer of fluff;

[0039] After raising, the fluff shape is fixed through a heat setting process to ensure its stability after multiple washes. The heat setting temperature is controlled between 180°C, and the time is set to 30 seconds to avoid affecting the fabric performance due to high temperature;

[0040] S5: Post-treatment

[0041] The fabric is subjected to softening, shaping, and pre-shrinking treatments to optimize the handfeel and appearance;

[0042] S6: Final Product Inspection

[0043] The fabric's properties such as clo value, moisture absorption, and antistatic performance are tested to ensure that the product meets the design requirements.

[0044] Due to its natural curly structure and scale layer characteristics, wool has good heat preservation performance and antibacterial effect, which can reduce heat loss and inhibit bacterial growth in low-temperature environments. Self-heating acrylic fiber absorbs moisture in the environment and releases heat, thus enhancing the overall heat output of the fabric and improving the heat preservation effect. Lyocell fiber, with its high crystallinity and microporous structure, endows the fabric with excellent moisture absorption and breathability, enabling moisture to diffuse quickly and keep the fabric dry. Nylon fiber improves the mechanical properties of the yarn through its high strength and wear resistance, and its moisture absorption also plays an auxiliary role in reducing static electricity generation.

[0045] Nylon fiber enhances the strength of the yarn through hydrogen bonding between its molecular chains, compensating for the deficiency of Lyocell fiber in mechanical properties. Lyocell fiber adsorbs moisture in the environment through its hydrophilic groups to form a conductive channel, neutralizing the static electricity effect generated by the friction of acrylic fiber;

[0046] This fiber combination not only optimizes the overall performance of the yarn but also significantly reduces static electricity generation and improves the comfort of fabric use.

[0047] In step S4, during the raising process, the fibers are pulled out and fluffed up, increasing the storage space for air, thus enhancing the heat preservation performance. After raising, the pilling process is carried out to further refine and curl the fluff, forming uniform granular fluff, optimizing the handfeel and appearance.

[0048] In step S6, the Clo value should reach 0.887, indicating its extremely high heat preservation performance. The moisture diffusion rate should exceed 0.2 grams per square meter per hour, and the static voltage should be lower than 500 volts.

[0049] The process conducts raising treatment on both sides of the fabric to form a fine and uniform fluff layer on the surface. These fluff layers build a multi-layer air insulation structure, significantly increasing the Clo value of the fabric. Specifically, the raising equipment mechanically combs the surface of the grey cloth through the card clothing, making the fiber ends stand up to form fluff, and then fixes the fluff shape through the heat setting process to ensure its stability after multiple washes. The process enables the Clo value of the fabric to reach 0.887, equivalent to the heat preservation effect of a lightweight down jacket.

[0050] Example Two:

[0051] The embodiment of the present invention provides a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance and its production process. Its blended yarn is composed of multiple functional fibers by weight percentage, including: 25% wool, 30% self-heating acrylic fiber, 25% Lyocell fiber, and 20% nylon.

[0052] Due to its natural curly structure and scale layer characteristics, wool has good heat preservation performance and antibacterial effect, and can reduce heat loss and inhibit bacterial growth in low-temperature environments. Further, the self-heating acrylic fiber releases heat by absorbing moisture in the environment, thereby enhancing the overall heat energy output of the fabric and strengthening the heat preservation effect. In particular, the Lyocell fiber, with its high crystallinity and microporous structure, endows the fabric with excellent moisture absorption and breathability, enabling moisture to diffuse quickly and keep the fabric dry. In addition, the nylon fiber improves the mechanical properties of the yarn through its high strength and wear resistance, and its moisture absorption also plays an auxiliary role in reducing static electricity generation.

[0053] A production process of a polar fleece fabric with moisture absorption and heat generation and high heat preservation performance is characterized by including the following steps:

[0054] S1: Raw material selection and fixed spinning

[0055] Mix wool, self-heating acrylic fiber, Lyocell fiber, and nylon fiber according to the set ratio, and prepare fixed spinning yarn through carding machine, drawing frame, and ring spinning frame equipment.

[0056] S2: Weaving

[0057] Weave the fixed spinning yarn into grey cloth through knitting or weaving process.

[0058] S3: Pretreatment

[0059] Conduct cleaning and bleaching treatment on the grey cloth to remove impurities and improve the effect of subsequent processing.

[0060] This step removes impurities and oil stains on the surface of the greige cloth, laying a foundation for subsequent processing. An environmentally friendly detergent is used during the cleaning process to avoid damaging the fabric.

[0061] S4: Raising and pilling on both sides

[0062] Use raising equipment to raise both sides of the fabric to form a uniform layer of fluff.

[0063] After raising, the shape of the fluff is fixed through a heat setting process to ensure its stability after multiple washes. The heat setting temperature is controlled at 160 °C and the time is set to 60 seconds to avoid affecting the fabric properties due to high temperature.

[0064] S5: Post-treatment

[0065] Conduct softening treatment, shaping and pre-shrinking treatment on the fabric to optimize the handfeel and appearance.

[0066] S6: Final inspection

[0067] Detect the performance indicators of the fabric such as the clo value, moisture absorption and antistatic properties to ensure that the product meets the design requirements.

[0068] Due to its natural curly structure and scale layer characteristics, wool has good heat preservation performance and antibacterial effect, and can reduce heat loss and inhibit bacterial growth in low-temperature environments. Self-heating acrylic fiber absorbs moisture in the environment and releases heat, thereby enhancing the overall heat energy output of the fabric and strengthening the heat preservation effect. Lyocell fiber, with its high crystallinity and microporous structure, endows the fabric with excellent moisture absorption and breathability, enabling moisture to diffuse quickly and keep the fabric dry. Nylon fiber improves the mechanical properties of the yarn through its high strength and wear resistance, and its moisture absorption also plays an auxiliary role in reducing static electricity generation.

[0069] Nylon fiber enhances the strength of the yarn through the hydrogen bond interaction between its molecular chains, making up for the deficiency of Lyocell fiber in mechanical properties. Lyocell fiber adsorbs moisture in the environment through its hydrophilic groups to form a conductive channel, neutralizing the static electricity effect generated by the friction of acrylic fiber.

[0070] In step S4, during the raising process, the fibers are pulled out and fluffed up, increasing the storage space for air, thereby enhancing the heat preservation performance. After raising, the pilling process is carried out to further refine and curl the fluff, forming uniform granular fluff, optimizing the handfeel and appearance.

[0071] In step S6, the clo value reaches 0.887, indicating that the fabric has extremely high heat preservation performance, equivalent to that of a lightweight down jacket. The moisture absorption index shows that the moisture diffusion rate exceeds 0.2 grams per square meter per hour, meeting the requirements of efficient moisture absorption. The antistatic property index shows that the static voltage is lower than 500 volts, verifying the effectiveness of the static electricity control design.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polar fleece fabric with moisture absorption, heat generation and high heat preservation performance, characterized in that, Its blended yarn is composed of various functional fibers by weight percentage, including: 25% wool, 30% self-heating acrylic, 25% Lyocell fiber, and 20% nylon.

2. The production process of a polar fleece fabric with moisture absorption, heat generation and high heat preservation performance is characterized in that: It includes the following steps: S1: Raw material selection and spinning Mix wool, self-heating acrylic, Lyocell fiber, and nylon fiber according to the set ratio, and prepare the spinning yarn through carding machine, drawing frame, and ring spinning frame equipment; S2: Weaving Weave the spinning yarn into grey cloth through knitting or weaving process; S3: Pretreatment Clean and bleach the grey cloth to remove impurities and improve the effect of subsequent processing; S4: Raising and pilling on both sides Use raising equipment to raise both sides of the fabric to form a uniform fluff layer; S5: Post-finishing Soften, shape, and pre-shrink the fabric to optimize the hand feeling and appearance; S6: Final inspection Detect the performance indicators of the fabric's clo value, moisture absorption, and antistatic properties to ensure that the product meets the design requirements.

3. The fleece fabric with moisture absorption and heat generation and high heat preservation performance according to claim 1, characterized in that: Due to its natural curly structure and scale layer characteristics, the wool has good heat preservation performance and antibacterial effect, which can reduce heat loss and inhibit bacterial growth in low-temperature environments. The self-heating acrylic releases heat by absorbing moisture in the environment, thus enhancing the overall heat energy output of the fabric and strengthening the heat preservation effect. The Lyocell fiber, with its high crystallinity and microporous structure, endows the fabric with excellent moisture absorption and breathability, enabling moisture to diffuse quickly and keep the fabric dry. The nylon fiber improves the mechanical properties of the yarn through its high strength and wear resistance, and its moisture absorption also plays an auxiliary role in reducing static electricity generation.

4. The fleece fabric with moisture absorption and heat generation and high heat preservation performance according to claim 3, characterized in that: The nylon fiber enhances the strength of the yarn through the hydrogen bond interaction between its molecular chains, making up for the deficiency of the Lyocell fiber in mechanical properties. The Lyocell fiber adsorbs moisture in the environment through its hydrophilic groups to form a conductive channel, neutralizing the static electricity effect generated by the friction of the acrylic fiber.

5. The production process of a polar fleece fabric with moisture absorption, heat generation and high heat preservation performance according to claim 2, characterized in that: In step S4, during the raising process, the fibers are pulled out and fluffed up, increasing the storage space for air, thereby enhancing the heat preservation performance. After raising, the pilling process is carried out to further refine and curl the fluff, forming uniform granular fluff, optimizing the hand feeling and appearance.

6. The production process of a polar fleece fabric with moisture absorption, heat generation and high heat preservation performance according to claim 2, characterized in that: In step S6, the clo value should reach 0.887, indicating its extremely high heat preservation performance. The moisture diffusion rate should exceed 0.2 grams per square meter per hour, and the static voltage should be lower than 500 volts.