Bio-based degradable fabric and manufacturing method thereof

Abstract

The invention discloses a bio-based degradable fabric and a manufacturing method thereof. The bio-based degradable fabric comprises special yarns, ice algae mud fibers; an aerogel film; peppermint essential oil; the fabric has the beneficial effects that by combining innovative elements such as the special yarns, the ice algae mud fibers, the aerogel film and the peppermint essential oil, not only is the degradability of the fabric maintained, but also the properties such as heat preservation, antibiosis and deodorization, dehumidification, antistatic property and heat storage of the fabric are remarkably improved, and the requirements of modern people for high-quality and multifunctional textiles are met; by simplifying the manufacturing process and integrating various functional materials, not only is the production efficiency improved, but also the final product has excellent properties such as heat preservation, antibiosis and deodorization, dehumidification, antistatic property and heat storage, and the method is environment-friendly and energy-saving and meets the requirements of sustainable development.

Description

Technical Field

[0001] The present invention belongs to the technical field of fabrics, and in particular relates to a bio-based degradable fabric and a manufacturing method thereof. Background Art

[0002] Bio-based materials refer to polymer materials formed by obtaining biopolymer materials or monomers through biotransformation from renewable raw materials and then further polymerizing them.

[0003] The advantages of bio-based fabrics include: environmental sustainability, good biodegradability, resource renewable, energy saving and emission reduction, renewable raw materials, promotion of development, comfort, versatility, safety, and economy; the environmental sustainability of bio-based fabrics is one of their most significant advantages. These fabrics are usually made from renewable resources, such as plants, animal by-products, etc., reducing dependence on fossil fuels; in the production process, bio-based fabrics tend to have a lower carbon footprint because the carbon atoms they contain come from biomass rather than fossil fuels; in addition, many bio-based fabrics have excellent biodegradability, which means that they can decompose in the natural environment after being discarded, reducing the pressure on landfills and long-term impact on the environment; another important advantage of bio-based fabrics is their environmental friendliness. In the production process, these fabrics usually do not require special conditions such as high temperature and high pressure, thereby reducing resource consumption and energy consumption; at the same time, their production process does not produce a large amount of waste gas, wastewater and solid waste, which is of great significance for reducing the burden of industrial production on the environment.

[0004] A bio-based degradable fabric and a production method thereof with publication number CN117090054A discloses that the fabric is composed of bio-based polyester-nylon composite fibers, wherein the bio-based polyester-nylon composite fibers include 80-88% of bio-based polyester fibers and 12-20% of bio-based nylon fibers; the raw materials also include a hydrophilic pretreatment liquid and a hydrophilic coating agent; the bio-based polyester fiber raw materials include bio-based diols and bio-based dibasic acids; the hydrophilic pretreatment liquid is an acrylic emulsion, and the hydrophilic coating agent is a nano Sm-Zn0 hydrophilic agent; the steps include: weighing 80-88% of bio-based nylon fibers and 12-20% of bio-based polyester fibers by weight, and mixing the raw materials evenly. uniform; melting the mixed raw materials into a mixed melt, feeding it into a spinning machine, spraying it from a spinneret to form a filament, and then cooling it with air, oiling it, stretching and winding it to obtain a bio-based polyester-nylon composite fiber; then spinning the bio-based polyester-nylon composite fiber to obtain a bio-based polyester-nylon composite yarn; knitting the bio-based polyester-nylon composite yarn to obtain a bio-based polyester-nylon blended fabric grey cloth; immersing the bio-based polyester-nylon blended fabric in a hydrophilic pretreatment liquid, performing two immersions and two rollings, and baking to obtain a pretreated fabric grey cloth; using a hydrophilic coating agent to perform a hydrophilic treatment on the fabric grey cloth, and baking to obtain a hydrophilic treated fabric grey cloth; dyeing and finishing the hydrophilic treated fabric grey cloth to obtain a finished bio-based polyester-nylon blended fabric.

[0005] Existing technologies, such as the patent with publication number CN117090054A, provide a degradable fabric composed of bio-based polyester-nylon composite fibers and a method for producing the same, but there is still room for improvement in functionality and comfort; in particular, the market demand for the thermal insulation, antibacterial and deodorizing, dehumidifying and antistatic properties of the fabric is growing; although the patent with publication number CN117090054A can achieve the degradability of the fabric, the production process is relatively complicated and the functional expansion of the fabric is limited. Summary of the invention

[0006] The purpose of the present invention is to provide a bio-based degradable fabric and a method for making the same, which not only has excellent degradability, but also integrates a variety of functional materials, simplifies the production process, and at the same time incorporates a variety of functional materials to significantly improve the comprehensive performance of the fabric.

[0007] To achieve the above object, the present invention provides the following technical solution: a bio-based degradable fabric, comprising Specialty yarn: As the main structure of the fabric, it is spun and has high strength, high wear resistance and good air permeability; Ice algae mud fiber: evenly distributed in the fabric, using its microporous structure to absorb and reduce odor, giving the fabric a natural and fresh feeling and inhibiting bacterial growth; Aerogel film: As a functional laminate material, it is embedded inside or on the surface of the fabric to improve the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil: Evenly distributed in the fabric through microencapsulation technology, it releases essential oil ingredients and enhances the antibacterial and deodorizing effects of the fabric; Textile auxiliaries: improve the touch and moisture absorption of fabrics.

[0008] As a preferred technical solution of the present invention, the textile auxiliary agent includes a softener and a wicking agent.

[0009] As a preferred technical solution of the present invention, the softener includes long-chain aliphatic and high molecular polymer.

[0010] As a preferred technical solution of the present invention, the special yarn includes functional type, environmentally friendly type and fashionable type.

[0011] As a preferred technical solution of the present invention, the aerogel film preparation method is as follows: dissolving the aerogel precursor in a solvent to form a uniform solution; The precursor undergoes hydrolysis and polycondensation to form a sol with a three-dimensional network structure; Controlling the temperature and pH value allows the sol to gradually transform into a wet gel; The solvent in the wet gel is removed by supercritical drying or freeze drying to obtain an aerogel film.

[0012] As a preferred technical solution of the present invention, the precursor is ethyl orthosilicate, and the solvent is tetraethoxysilane.

[0013] As a preferred technical solution of the present invention, the peppermint essential oil is prepared as follows: natural mint leaves are picked and washed to remove dirt and impurities on the surface; then they are placed in a distiller and water is added; the distiller is heated to evaporate the water to generate steam, and the steam carries out the essential oil components when passing through the plant raw material; the steam carrying the essential oil is cooled through a condenser and condensed into a liquid; the essential oil and water are separated by a separation device to obtain pure peppermint essential oil.

[0014] The present invention also discloses a method for making a bio-based degradable fabric, comprising the following steps: Raw material preparation: special yarn, ice algae mud fiber, aerogel film and peppermint essential oil microcapsules; Spinning and weaving: After the special yarn is mixed with the ice algae mud fiber, it is made into a composite yarn through a spinning process; then, the composite yarn is woven into fabric fabric using a knitting process; Aerogel film treatment: fix the aerogel film on one or both sides of the fabric by lamination or coating to enhance the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil microcapsule treatment: Spread the microcapsules containing peppermint essential oil evenly on the surface of the fabric and firmly bond them to the fabric through heat pressing or ultrasonic method to achieve the effect of long-term release of essential oil components; Subsequent processing: finishing of fabrics.

[0015] As a preferred technical solution of the present invention, the finishing treatment includes softening treatment and shaping treatment.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By combining innovative elements such as special yarn, ice algae mud fiber, aerogel film and peppermint essential oil, the fabric not only maintains its biodegradability, but also significantly improves its thermal insulation, antibacterial and deodorizing, dehumidifying, antistatic and heat storage properties, meeting the modern people's demand for high-quality and multifunctional textiles. By simplifying the production process and incorporating a variety of functional materials, not only is the production efficiency improved, but the final product also has excellent thermal insulation, antibacterial and deodorizing, dehumidification, antistatic and heat storage properties. This method is environmentally friendly and energy-saving, and meets the requirements of sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flow chart of the manufacturing method of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0019] See also Figure 1 , which is the first embodiment of the present invention, provides a bio-based degradable fabric, including Special yarn: As the main structure of the fabric, it is spun using a special process and has high strength, high wear resistance and good air permeability; Ice algae mud fiber: Evenly distributed in the fabric, it uses its microporous structure to absorb and reduce odor, while giving the fabric a natural and fresh feeling and effectively inhibiting bacterial growth; Aerogel film: As a functional laminate material, it is embedded inside or on the surface of the fabric to significantly improve the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil: Evenly distributed in the fabric through microencapsulation technology, the essential oil ingredients are slowly released, further enhancing the antibacterial and deodorizing effects of the fabric. It does not contain heavy metal ingredients and is safe and environmentally friendly. Textile auxiliaries: including softeners and wicking agents, which improve the feel and moisture absorption of fabrics.

[0020] In this embodiment, preferably, the softener is a chemical substance that can change the static and dynamic friction coefficients of fibers; when the softener acts on fibers or fabrics, the surface thereof can become smooth and the hand feel becomes soft and comfortable; the softener can not only improve the hand feel of the fabric, but also often has the effects of anti-static, anti-re-pollution, improving smoothness, tearing strength and sewing properties; The main functions of softeners include: Replenish the natural oils lost by natural fibers in the processes of refining and bleaching, making the hand feel more ideal; Attaches to natural or synthetic fibers to improve the smoothness and strength of the fibers or fabrics; Improve the wearing performance of fabrics through certain properties of softeners, such as water absorption, water repellency, antistatic properties, etc. Classification of softeners: According to their chemical structure, softeners are mainly divided into two categories: long-chain aliphatic softeners and high molecular polymer softeners; long-chain aliphatic softeners can be divided into anionic, cationic, nonionic and amphoteric softeners according to their ionicity; high molecular polymer softeners mainly include polyethylene and silicone softeners; Silicone softener is a type of softener that has developed rapidly in recent years. Its molecular structure can significantly reduce the static and dynamic friction coefficients between fibers and reduce the surface tension of fibers. It is an ideal material for softening textiles. Wicking agent is an auxiliary agent that can significantly improve the wicking effect of textiles; wicking agent mainly improves the hygroscopicity and moisture conductivity of fibers, enabling textiles to quickly absorb sweat discharged from the body surface and quickly diffuse it to other parts of the fabric, thereby keeping the skin dry and comfortable.

[0021] In this embodiment, preferably, the special yarn includes functional type, environmentally friendly type, and fashionable type; the functional type includes hot yarn and cool yarn; Thermal yarn insulation principle: In cold climates, the body's heat will automatically lose to the outside, and fabrics containing thermal yarn can delay heat loss; Contains special coffee charcoal and oxide additives, which have a large heat capacity and can absorb and retain body heat for a long time; The most effective way to keep warm is to apply the thermal yarn to the inner layer of close-fitting clothing, so that the coffee charcoal can more fully absorb and store the heat emitted by the body; Coffee charcoal: extracted from the shells of coffee beans, harmless to the skin; excellent heat preservation function; powerful deodorizing effect (can absorb irritating gases and odors); effective antibacterial properties; natural color, no dyes; environmentally friendly, reduces carbon dioxide emissions.

[0022] The principle of the cool touch of ice yarn: minerals are added to the particles to improve its thermal conductivity; the special flat cross-section and increased surface area allow the body's heat to be quickly transferred to the fabric and then dissipated; the special full-matt polymer contains tiny inorganic particles, which increases the surface area of ​​the yarn and forms tiny pipes, enhancing air permeability and coolness; the low-loft elastic process makes the yarn more ventilated and breathable.

[0023] In this embodiment, preferably, the aerogel film preparation method is as follows: The precursor of the aerogel is dissolved in a solvent to form a uniform solution; the precursor is ethyl orthosilicate and the solvent is tetraethoxysilane; The precursor undergoes hydrolysis and polycondensation to form a sol with a three-dimensional network structure; Controlling the temperature and pH value allows the sol to gradually transform into a wet gel; The solvent in the wet gel is removed by supercritical drying or freeze drying to obtain an aerogel film.

[0024] Since its invention, aerogels have been primarily made from silica, which is combined with a solvent to create a gel. This gel is then subjected to supercritical fluid extraction, which involves introducing liquid carbon dioxide into the gel. The carbon dioxide passes its supercritical point, where it can be either a gas or a liquid, and is then expelled. This exchange is done multiple times to ensure that all of the liquid is removed from the gel. The resulting material is what we call an aerogel.

[0025] In this embodiment, preferably, peppermint essential oil is prepared as follows: natural mint leaves are picked and washed to remove dirt and impurities on the surface; then they are placed in a distiller and water is added; the distiller is heated to evaporate the water to generate steam, and the steam carries out the essential oil components when passing through the plant material; the steam carrying the essential oil is cooled through a condenser and condensed into a liquid; the essential oil and water are separated by a separation device to obtain pure peppermint essential oil.

[0026] Sweating is inevitable in summer. Sweating is an instinctive reaction of the human body to regulate body temperature. Sweat itself is actually odorless, but when sweat and organic matter discharged by the human body are digested by bacteria, the bacteria multiply in large numbers, produce a large amount of excrement, and produce unpleasant odors. Fabrics made of ice algae mud fiber or yarn can inhibit bacterial reproduction and reduce the generation of odors (ammonia, acetic acid); in addition, the microporous structure of ice algae mud can also absorb and reduce odors, bringing a comfortable and refreshing feeling! Example 2

[0027] See also Figure 1 , which is the second embodiment of the present invention, provides a method for making a bio-based degradable fabric, comprising the following steps: Raw material preparation: special yarn, ice algae mud fiber, aerogel film and peppermint essential oil microcapsules; Spinning and weaving: After the special yarn is mixed with the ice algae mud fiber, it is made into a composite yarn through a spinning process; then, the composite yarn is woven into fabric fabric using a knitting process; Aerogel film treatment: fix the aerogel film on one or both sides of the fabric by lamination or coating to enhance the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil microcapsule treatment: Spread the microcapsules containing peppermint essential oil evenly on the surface of the fabric and firmly bond them to the fabric through heat pressing or ultrasonic method to achieve the effect of long-term release of essential oil components; Subsequent processing: Finishing of fabrics, including softening and shaping.

[0028] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the 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 bio-based degradable fabric, characterized in that: include Specialty yarn: As the main structure of the fabric, it is spun and has high strength, high wear resistance and good air permeability; Ice algae mud fiber: evenly distributed in the fabric, using its microporous structure to absorb and reduce odor, giving the fabric a natural and fresh feeling and inhibiting bacterial growth; Aerogel film: As a functional laminate material, it is embedded inside or on the surface of the fabric to improve the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil: Evenly distributed in the fabric through microencapsulation technology, it releases essential oil ingredients and enhances the antibacterial and deodorizing effects of the fabric; Textile auxiliaries: improve the touch and moisture absorption of fabrics.

2. The biodegradable fabric according to claim 1, characterized in that: The textile auxiliaries include softeners and wicking agents.

3. The bio-based degradable fabric according to claim 2, characterized in that: The softeners include long-chain aliphatic and high molecular polymer types.

4. The bio-based degradable fabric according to claim 1, characterized in that: The special yarns include functional type, environmentally friendly type and fashionable type.

5. The bio-based degradable fabric according to claim 1, characterized in that: The aerogel film preparation method is as follows: dissolving the aerogel precursor in a solvent to form a uniform solution; The precursor undergoes hydrolysis and polycondensation to form a sol with a three-dimensional network structure; Controlling the temperature and pH value allows the sol to gradually transform into a wet gel; The solvent in the wet gel is removed by supercritical drying or freeze drying to obtain an aerogel film.

6. The bio-based degradable fabric according to claim 5, characterized in that: The precursor is ethyl orthosilicate, and the solvent is tetraethoxysilane.

7. The bio-based degradable fabric according to claim 1, characterized in that: The peppermint essential oil is prepared as follows: natural mint leaves are picked and washed to remove dirt and impurities on the surface; then the leaves are placed in a distiller and water is added; the distiller is heated to evaporate the water to generate steam, and the steam carries out essential oil components when passing through the plant raw materials; the steam carrying the essential oil is cooled through a condenser and condensed into liquid; the essential oil and water are separated through a separation device to obtain pure peppermint essential oil.

8. A method for producing a bio-based degradable fabric according to any one of claims 1 to 7, characterized in that: The steps include: Raw material preparation: special yarn, ice algae mud fiber, aerogel film and peppermint essential oil microcapsules; Spinning and weaving: After the special yarn is mixed with the ice algae mud fiber, it is made into a composite yarn through a spinning process; then, the composite yarn is woven into fabric fabric using a knitting process; Aerogel film treatment: fix the aerogel film on one or both sides of the fabric by lamination or coating to enhance the dehumidification, antibacterial, antistatic and heat storage properties of the fabric; Peppermint essential oil microcapsule treatment: Spread the microcapsules containing peppermint essential oil evenly on the surface of the fabric and firmly bond them to the fabric through heat pressing or ultrasonic method to achieve the effect of long-term release of essential oil components; Subsequent processing: finishing of fabrics.

9. The method for making a bio-based degradable fabric according to claim 8, characterized in that: Finishing treatments include softening treatment and shaping treatment.

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