A green home textile fabric based on biodegradable fiber and a preparation method thereof

Abstract

This invention discloses a green home textile fabric based on biodegradable fibers and its preparation method, belonging to the field of textile manufacturing technology. It addresses the technical problem that the biodegradability and heat-insulating / moisture-permeable properties of existing green home textile fabrics need further improvement. This invention constructs a multifunctional home textile material through a rational combination of cyclic carbonate functional copolyester, a composite anti-mite finishing agent, and a heat-insulating / moisture-permeable finishing agent. The cyclic carbonate functional copolyester provides excellent physical properties to the base fiber, the composite anti-mite finishing agent imparts long-lasting mite-proof capability to the fabric, and the heat-insulating / moisture-permeable finishing agent enhances the fabric's thermal and moisture resistance, improving wearing comfort. The resulting green home textile fabric exhibits excellent performance in mite prevention, heat insulation, moisture permeability, and biodegradability, meeting the dual requirements of high performance and environmental friendliness, and possessing broad market application potential.

Description

Technical Field

[0001] This invention relates to the field of textile preparation technology, specifically to a green home textile fabric based on biodegradable fibers and its preparation method. Background Technology

[0002] With the continuous deepening of research on sustainable materials, the application of biodegradable fibers in the home textile field is gradually expanding. Biodegradable fibers, represented by bio-based polyester, polylactic acid and its copolymers, can decompose in compost or soil environments. Their degradation behavior is affected by molecular structure, environmental conditions and processing methods. Research on degradation mechanisms, degradation rate regulation and environmental adaptability is becoming increasingly abundant. At the same time, technologies related to heat insulation and moisture permeability are also constantly developing. By adjusting fiber structure, optimizing fabric pores, designing the distribution of hydrophilic and hydrophobic groups, and using finishing agents to construct micro-films, the heat transfer path and moisture diffusion channel can be controlled. The above research promotes the continuous exploration of green home textile materials in terms of degradability and temperature and humidity management performance, and provides a technical foundation for their development in multifunctional home textile applications.

[0003] Currently, green home textile materials still have certain limitations in terms of biodegradability and functional retention. Biodegradable fibers are limited in terms of molecular structure stability, finishing durability, and environmental response consistency, making their decomposition rate under industrial composting and soil conditions susceptible to external factors and resulting in an unstable degradation process. At the same time, the binding methods between biodegradable fibers and functional finishing agents are relatively limited, and the finishing layer is prone to peeling or performance degradation during washing or long-term use, affecting the durability of protective functions. Furthermore, traditional heat insulation or moisture-permeable finishing often relies on a single film formation or surface modification method, and the continuity of the film layer and the stability of the microchannels are easily affected by processing conditions, making it difficult to maintain thermal resistance and moisture resistance within the ideal range for a long time. In addition, when multiple functions are applied simultaneously, the coordination between processes is insufficient, often making it difficult to achieve a stable balance between protective performance, physiological comfort, and environmental adaptability.

[0004] To address this technical deficiency, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a green home textile fabric based on biodegradable fibers and its preparation method, in order to solve the technical problem that the biodegradability and heat insulation and moisture permeability of green home textile fabrics in the prior art need to be further improved.

[0006] The objective of this invention can be achieved through the following technical solution: a method for preparing green home textile fabric based on biodegradable fibers, comprising the following steps:

[0007] S1. Add cyclic carbonate functional copolyester to a melt spinning machine, set the extrusion temperature to 180-210℃, melt extrude into filaments, and obtain functional copolyester fibers after cooling, forming, hot stretching and setting treatment.

[0008] S2. After twisting the functional copolyester fiber into a warp winding machine or a warp knitting machine, knit the fabric using a 32-gauge needle cylinder to obtain a knitted fabric, and then process it to obtain the functional copolyester fabric.

[0009] S3. Impregnate the functional copolyester fabric with the anti-mite finishing solution for 3-5 minutes. Control the residual rate to 70-80% by using a rolling mill. Post-treatment yields the anti-mite copolyester fabric. The anti-mite finishing solution is obtained by mixing a composite anti-mite finishing agent and deionized water at a ratio of 2-3g:10mL and adjusting the pH to 5-6.

[0010] S4. Immerse the anti-mite copolyester fabric in the moisture-permeable finishing solution for 2-4 minutes. Control the residual rate to 60-70% using a rolling mill. The post-treatment yields green home textile fabric. The anti-mite finishing solution is prepared by mixing a heat-insulating and moisture-permeable finishing agent and deionized water at a ratio of 5-6g:10mL.

[0011] The reaction principle for preparing green home textile fabrics is as follows:

[0012] First, during melt spinning, the cyclic carbonate functional copolyester forms a fiber structure with certain active groups and flexible segments, providing effective binding sites for the material in subsequent finishing processes. After weaving, a functional copolyester fabric is obtained. Subsequently, the fiber surface forms a directional bond with chitosan, dialdehyde cyclodextrin, and cinnamaldehyde in the composite anti-mite finishing agent. Through condensation, complexation, and multi-point adsorption, the anti-mite components are stably attached to the fiber surface, thereby constructing a durable anti-mite interface. Then, the lactic acid-modified polyol, polyurethane segments, and silica sol in the heat-insulating and moisture-permeable finishing agent together form a composite film with a microporous structure on the fabric surface, ultimately preparing a green home textile fabric. This green home textile fabric provides a certain thermal resistance while maintaining channels for moisture diffusion and migration, achieving a balance between heat insulation and moisture permeability.

[0013] Furthermore, in step S1, the monofilament fineness of the functional copolyester fiber is 1.2-1.6 dtex, and the yarn linear density is 100-120 dtex;

[0014] Furthermore, in step S2, the basis weight of the functional copolyester fabric is 100-120 g / m². 2The warp density is 200-220 threads / 10cm, the weft density is 180-200 threads / 10cm, the width is 160-180cm, the fabric thickness is 0.20-0.30mm, and the post-treatment includes: setting the knitted fabric at 130-150℃ for 20-40s, cooling and winding it up to obtain the functional copolyester fabric.

[0015] Furthermore, in step S3, the ratio of the functional copolyester fabric to the anti-mite finishing liquid is 1g:18-20mL, and the post-treatment includes: pre-drying at 80-100℃ for 1-2min, then baking at 140-160℃ for 2-3min, and cooling to obtain the anti-mite copolyester fabric.

[0016] Furthermore, in step S4, the ratio of the anti-mite copolyester fabric to the moisture-permeable finishing liquid is 1g:12-15mL, and the post-treatment includes: pre-drying at 80-100℃ for 1-2min, baking at 130-150℃ for 2-3min, and obtaining green home textile fabric after cooling.

[0017] Furthermore, the cyclic carbonate functional copolyester is prepared by the following method:

[0018] A1. Succinic acid, adipic acid, 1,4-butanediol, sorbitol and tetra-n-butoxytitanium are added to a reaction vessel and stirred. Under nitrogen protection, the reaction vessel is heated to 180-200℃, stirred and kept at this temperature. The pressure is then reduced to 30-40 kPa within 15-20 min, and then reduced to 5-10 kPa within 15-30 min. The reaction is then carried out at a constant temperature and pressure for 2-3 h. The aliphatic copolymer prepolymer is obtained after post-treatment.

[0019] A2. Add the aliphatic copolymer prepolymer to the reactor, heat the reactor to 80-100℃ and stir until melted, then add dimethyl carbonate and potassium carbonate, then heat the reactor to 120-140℃ and keep it at that temperature for 2-3 hours. The post-treatment yields the cyclic carbonate functional copolyester.

[0020] The reaction principle for preparing cyclic carbonate functionalized copolyesters is as follows:

[0021] Aliphatic diacids and polyols undergo polycondensation in the presence of a catalyst, generating a prepolymer with a certain molecular chain length and terminal hydroxyl structure through esterification between carboxyl and hydroxyl groups. This provides reaction sites for the subsequent introduction of cyclic carbonate groups. Subsequently, the hydroxyl groups in the prepolymer undergo a substitution reaction with dimethyl carbonate under mild alkaline conditions, introducing the cyclic carbonate structure through intermolecular or intramolecular carbonate bond construction. This allows the polyester segments to acquire characteristic carbonate groups, thereby preparing a cyclic carbonate functional copolyester. The above reaction gives the material both the flexibility of aliphatic polyesters and the reactivity of the cyclic carbonate structure, providing a structural basis for subsequent spinning processing and functionalization.

[0022] Further, in step A1, the ratio of succinic acid, adipic acid, 1,4-butanediol, sorbitol and tetra-n-butoxytitanium is 120g:40-50g:120mL:8-10g:0.8-1.0mL. The post-processing includes: after the reaction is completed, after the reaction vessel is restored to room temperature and pressure, the material is pulverized and passed through a 16-mesh sieve to obtain an aliphatic copolymer prepolymer.

[0023] Further, in step A2, the ratio of the aliphatic copolymer prepolymer, dimethyl carbonate, and potassium carbonate is 180-200g:8-12mL:0.4-0.6g. The post-treatment includes: after the reaction is completed, the reactor is heated to 60°C and depressurized to 20kPa, and then distilled under reduced pressure until no liquid is collected to obtain a cyclic carbonate functional copolyester.

[0024] Furthermore, the composite anti-mite finishing agent is prepared by the following method:

[0025] B1. Add β-cyclodextrin and deionized water to the reaction vessel and stir until dissolved. Then, cool the reaction vessel to 5-10℃ and add sodium periodate. Keep warm and stir for 2-4 hours in the dark. Then add ethylene glycol and continue stirring for 30 minutes. The post-treatment yields dialdehyde β-cyclodextrin.

[0026] B2. Add chitosan, 1 mol / L hydrochloric acid aqueous solution and deionized water to the reaction vessel. Heat the reaction vessel to 25-35℃ and stir until dissolved. Then add dialdehyde β-cyclodextrin and cinnamaldehyde. Stir for 2-3 hours. Then cool the reaction vessel to 0-5℃, add sodium borohydride, and stir for 1-2 hours. The post-treatment yields the composite anti-mite finishing agent.

[0027] The reaction principle for preparing the compound anti-mite finishing agent is as follows:

[0028] Under the selective oxidation of sodium periodate, the vicinal diol structure on the glucose unit of β-cyclodextrin is broken and converted into an aldehyde group, thus forming a dialdehyde cyclodextrin with multifunctionality. This structure retains the cavity characteristics of cyclodextrin and has the reactivity to condense with amino-containing polymers. Subsequently, the primary amino group on the chitosan molecular chain undergoes Schiff base condensation with the aldehyde group of the dialdehyde cyclodextrin, forming a cross-linked network structure. At the same time, cinnamaldehyde, as a small molecule active component, can also condense with the amino group and anchor to the chitosan chain segment, giving the finishing agent both anti-mite activity and stability. Finally, through the reduction of sodium borohydride, the imine bond formed in the system is reduced to a more stable carbon-nitrogen bond, resulting in a composite anti-mite finishing agent, thereby realizing the construction of a composite anti-mite function under the synergistic effect of multiple components.

[0029] Further, in step B1, the ratio of β-cyclodextrin, deionized water, sodium periodate, and ethylene glycol is 10-12g:100-120mL:5-6g:1.5-2.0mL. The post-treatment includes: after stirring, heating the reaction vessel to 60℃ and depressurizing it to 20kPa, and then distilling it under reduced pressure until no liquid is collected to obtain dialdehyde β-cyclodextrin.

[0030] Further, in step B2, the ratio of chitosan, 1 mol / L hydrochloric acid aqueous solution, deionized water, dialdehyde β-cyclodextrin, cinnamaldehyde, and sodium borohydride is 10-12 g: 20-30 mL: 500 mL: 10 g: 3-5 mL: 3-5 g. The post-treatment includes: after the reaction is completed, adjusting the pH of the reaction system to 6-7, heating the reaction vessel to 60°C and depressurizing it to 20 kPa, and distilling under reduced pressure until no liquid is collected to obtain the composite anti-mite finishing agent.

[0031] Furthermore, the heat-insulating and moisture-permeable finishing agent is prepared by the following method:

[0032] C1. Add epoxidized soybean oil and 80wt% lactic acid aqueous solution to a reaction vessel and stir. After mixing evenly, add p-toluenesulfonic acid and dibutylhydroxytoluene. Heat the reaction vessel to 90-110℃ and keep it at that temperature for 3-5 hours. The lactic acid modified polyol is then obtained through post-treatment.

[0033] C2. Add lactic acid-modified polyol to the reactor, heat the reactor to 60-70℃ under nitrogen protection and stir, add hexamethylene diisocyanate and dibutyltin dilaurate, keep warm and stir for 2-3 hours, then add silica sol, continue to keep warm and stir for 20-30 minutes, and then obtain the heat-insulating and moisture-permeable finishing agent.

[0034] The reaction principle for preparing a heat-insulating and moisture-permeable finishing agent is as follows:

[0035] Epoxidized soybean oil and lactic acid undergo ring-opening esterification under acidic catalysis, transforming epoxy groups into lactic acidified segments containing hydroxyl and ester groups. This forms a lactic acid-modified polyol with high hydroxyl value and abundant flexible segments, providing reactive sites for the subsequent formation of a polyurethane network. Subsequently, the lactic acid-modified polyol and hexamethylene diisocyanate undergo an addition reaction under the action of a catalyst to generate a polyurethane structure with urethane bonds as the main linkage. Through cross-linking between molecular chains, a continuous film with certain strength and elasticity is formed. At the same time, inorganic SiO2 particles in silica sol are dispersed and embedded in the polyurethane network, giving the system the microporous structure characteristics of inorganic components, thus combining heat insulation and moisture permeability. The above reaction realizes the composite construction of organic flexible segments and inorganic microparticles, enabling the heat-insulating and moisture-permeable finishing agent to form a functional film on the fiber surface that combines flexibility, stability, and breathability and moisture regulation.

[0036] Further, in step C1, the ratio of epoxidized soybean oil, 80wt% lactic acid aqueous solution, p-toluenesulfonic acid and butylated hydroxytoluene is 48-50g:10-12mL:0.2g:0.05g. The post-processing includes: after the reaction is completed, adjusting the pH of the reaction system to 6-7, heating the reaction vessel to 60℃ and depressurizing it to 20kPa, and distilling until no liquid is collected to obtain lactic acid modified polyol;

[0037] Further, in step C2, the ratio of lactic acid modified polyol, hexamethylene diisocyanate, dibutyltin dilaurate and silica sol is 18-20g:9-10mL:0.04mL:10g. The post-treatment includes: after the reaction is completed, cooling the reaction vessel to 50°C and depressurizing it to 20kPa, distilling until no liquid is collected, and obtaining the heat-insulating and moisture-permeable finishing agent.

[0038] The present invention also discloses a green home textile fabric based on biodegradable fibers, which is prepared by the above-mentioned method for preparing a green home textile fabric based on biodegradable fibers.

[0039] The present invention has the following beneficial effects:

[0040] 1. The mite-proof performance of the green home textile fabric prepared by this invention originates from the interfacial synergistic effect between the functional copolyester fiber and the composite anti-mite finishing agent. The cyclic carbonate functional copolyester fiber itself contains active groups, which can provide higher surface affinity after being woven into fabric, making it easier for the composite anti-mite finishing agent to form a uniform film and bind in a directional manner. Moreover, the microscopic surface structure of the fiber and the cross-linked network constructed by chitosan / dialdehyde cyclodextrin have a good bonding interface, which allows the anti-mite layer to maintain stable adhesion when the fabric is bent or rubbed. At the same time, the heat-insulating and moisture-permeable finishing agent further forms a thin film structure on its surface, which plays a certain role in encapsulation and slow release of the lower anti-mite layer, allowing anti-mite active substances such as cinnamaldehyde to be released in a gentler and more lasting way, thereby achieving long-term mite suppression. Finally, through the layer-by-layer construction and interfacial synergy of the three materials, the fabric has both structural stability and long-lasting mite-proof ability.

[0041] 2. The heat-insulating and moisture-permeable properties of the green home textile fabric prepared by this invention are not solely produced by the heat-insulating and moisture-permeable finishing agent, but are achieved through a gradient structure synergistically with the functional copolyester fiber and the anti-mite layer. First, the flexible segments of the cyclic carbonate functional copolyester fiber give the fabric body good bulkiness and microporous structure, providing a basis for the storage of hot air. After the formation of the anti-mite finishing layer, the network composed of chitosan and cyclodextrin adds a layer of natural polysaccharide interface on the fiber surface, making the fiber gaps more uniform and helping to form a stable air layer. Finally, the applied heat-insulating and moisture-permeable finishing agent forms a microporous membrane on the fabric surface through a polyurethane / silica sol composite film, making it difficult for heat to dissipate while ensuring that moisture can be smoothly discharged. The three components form a composite system of "fiber bulkiness - polysaccharide interface - microporous membrane" from the inside out at the structural level, giving the fabric a stable temperature regulation effect that is both warm and breathable.

[0042] 3. The biodegradability of the green home textile fabric prepared by this invention stems from the fact that both the fiber body and the two types of finishing agents are biodegradable components, enabling the overall material system to degrade synergistically in the environment. Among them, the cyclic carbonate functional copolyester, as the core fiber material, belongs to the aliphatic polyester system and can be gradually degraded through hydrolysis, bioenzymatic decomposition, etc. The chitosan and cyclodextrin in the composite anti-mite finishing agent are both derived from natural polysaccharides and can be rapidly decomposed under the action of microorganisms. The lactic acid modified polyol and organosilicon sol in the heat-insulating and moisture-permeable finishing agent are also environmentally friendly and will not produce difficult-to-treat residues during the degradation process. The three materials are combined in a layered manner in the fabric structure. When the fiber begins to hydrolyze, its surface polysaccharide anti-mite layer and polyurethane / silica sol microporous membrane can also be gradually peeled off and decomposed under humid and hot conditions, so that the overall degradation process presents the characteristics of interface synergy and segmented release, ultimately achieving the green degradation of the complete material system. Detailed Implementation

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In this application, the silica sol used was purchased from Anhui Mingyi Silicon Industry Co., Ltd., with the product number MY-930; and the epoxidized soybean oil used was purchased from Shanghai Maclean Biochemical Technology Co., Ltd., with the product number E808876.

[0045] Example 1

[0046] This embodiment provides a method for preparing a cyclic carbonate functionalized copolyester, comprising the following steps:

[0047] Step I: Preparation of aliphatic copolymer prepolymer

[0048] Weigh out 120.0g succinic acid, 40.0g adipic acid, 120.0mL 1,4-butanediol, 8.0g sorbitol and 0.8mL tetra-n-butoxytitanium and add them to the reactor. Stir the mixture and heat it to 180℃ under nitrogen protection. Keep the mixture at this temperature and stir. Reduce the pressure to 30kPa within 15min and then reduce it to 5kPa within another 15min. Continue the reaction at constant temperature and pressure for 2h. After the reaction is complete, wait for the reactor to return to room temperature and pressure, then pulverize the material and pass it through a 16-mesh sieve to obtain the aliphatic copolymer prepolymer.

[0049] Step II: Preparation of cyclic carbonate functionalized copolyester

[0050] Weigh 180.0g of aliphatic copolymer prepolymer and add it to the reactor. Heat the reactor to 80℃ and stir until melted. Add 8.0mL of dimethyl carbonate and 0.4g of potassium carbonate. Then heat the reactor to 120℃ and keep it at that temperature for 2 hours. After the reaction is complete, heat the reactor to 60℃ and reduce the pressure to 20kPa. Distill under reduced pressure until no liquid is collected to obtain cyclic carbonate functional copolyester.

[0051] Example 2

[0052] This embodiment provides a method for preparing a cyclic carbonate functionalized copolyester, comprising the following steps:

[0053] Step I: Preparation of aliphatic copolymer prepolymer

[0054] Weigh out 120.0g succinic acid, 50.0g adipic acid, 120.0mL 1,4-butanediol, 10.0g sorbitol and 1.0mL tetra-n-butoxytitanium and add them to the reactor. Stir the mixture and heat it to 200℃ under nitrogen protection. Keep the mixture at this temperature and stir. Reduce the pressure to 40kPa within 20min and then reduce it to 10kPa within 30min. Then, keep the mixture at the same temperature and pressure for 3h. After the reaction is complete, wait for the reactor to return to room temperature and pressure, then crush the material and pass it through a 16-mesh sieve to obtain the aliphatic copolymer prepolymer.

[0055] Step II: Preparation of cyclic carbonate functionalized copolyester

[0056] Weigh 200.0g of aliphatic copolymer prepolymer and add it to the reactor. Heat the reactor to 100℃ and stir until melted. Add 12.0mL of dimethyl carbonate and 0.6g of potassium carbonate. Then heat the reactor to 140℃ and stir for 3 hours. After the reaction is complete, heat the reactor to 60℃ and depressurize to 20kPa. Distill until no liquid is collected to obtain cyclic carbonate functional copolyester.

[0057] Example 3

[0058] This embodiment provides a method for preparing a cyclic carbonate functionalized copolyester, comprising the following steps:

[0059] Step I: Preparation of aliphatic copolymer prepolymer

[0060] Weigh out 120.0g succinic acid, 45.0g adipic acid, 120.0mL 1,4-butanediol, 9.0g sorbitol and 0.9mL tetra-n-butoxytitanium and add them to the reactor. Stir the mixture and heat it to 190℃ under nitrogen protection. Keep the mixture at this temperature and stir. Reduce the pressure to 35kPa within 18min and then reduce it to 5kPa within 25min. Then, keep the mixture at the same temperature and pressure for 3h. After the reaction is complete, wait for the reactor to return to room temperature and pressure, then crush the material and pass it through a 16-mesh sieve to obtain the aliphatic copolymer prepolymer.

[0061] Step II: Preparation of cyclic carbonate functionalized copolyester

[0062] Weigh 190.0g of aliphatic copolymer prepolymer and add it to the reactor. Heat the reactor to 90℃ and stir until melted. Add 10.0mL of dimethyl carbonate and 0.5g of potassium carbonate. Then heat the reactor to 130℃ and stir for 3 hours. After the reaction is complete, heat the reactor to 60℃ and depressurize to 20kPa. Distill until no liquid is collected to obtain cyclic carbonate functional copolyester.

[0063] Example 4

[0064] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0065] Step (1): Preparation of dialdehyde β-cyclodextrin

[0066] Weigh out 10.0 g of β-cyclodextrin and 100.0 mL of deionized water and add them to the reaction vessel. Stir until dissolved, then cool the reaction vessel to 5 °C and add 5.0 g of sodium periodate. Keep warm and stir for 2 h in the dark, then add 1.5 mL of ethylene glycol and continue stirring for 30 min. After stirring is complete, heat the reaction vessel to 60 °C and depressurize it to 20 kPa. Distill until no liquid is collected to obtain dialdehyde β-cyclodextrin.

[0067] Step 2: Preparation of compound anti-mite finishing agent

[0068] Weigh out 10.0 g chitosan, 20.0 mL 1 mol / L hydrochloric acid aqueous solution and 500.0 mL deionized water and add them to the reaction vessel. Heat the reaction vessel to 25℃ and stir until dissolved. Then add 10.0 g dialdehyde β-cyclodextrin and 3.0 mL cinnamaldehyde. Stir for 2 hours and then cool the reaction vessel to 0℃. Add 3.0 g sodium borohydride and stir for 1 hour. After the reaction is complete, adjust the pH of the reaction system to 6. Heat the reaction vessel to 60℃ and depressurize to 20 kPa. Distill until no liquid is collected to obtain the composite anti-mite finishing agent.

[0069] Example 5

[0070] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0071] Step (1): Preparation of dialdehyde β-cyclodextrin

[0072] Weigh 12.0 g of β-cyclodextrin and 120.0 mL of deionized water and add them to the reaction vessel. Stir until dissolved, then cool the reaction vessel to 10 °C and add 6.0 g of sodium periodate. Keep warm and stir for 4 h in the dark, then add 2.0 mL of ethylene glycol and continue stirring for 30 min. After stirring is complete, heat the reaction vessel to 60 °C and depressurize it to 20 kPa. Distill until no liquid is collected to obtain dialdehyde β-cyclodextrin.

[0073] Step 2: Preparation of compound anti-mite finishing agent

[0074] Weigh out 12.0 g chitosan, 30.0 mL 1 mol / L hydrochloric acid aqueous solution and 500.0 mL deionized water and add them to the reaction vessel. Heat the reaction vessel to 35℃ and stir until dissolved. Then add 10.0 g dialdehyde β-cyclodextrin and 5.0 mL cinnamaldehyde. Stir for 3 h and then cool the reaction vessel to 5℃. Add 5.0 g sodium borohydride and stir for 2 h. After the reaction is complete, adjust the pH of the reaction system to 7, heat the reaction vessel to 60℃ and depressurize to 20 kPa. Distill until no liquid is collected to obtain the composite anti-mite finishing agent.

[0075] Example 6

[0076] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0077] Step (1): Preparation of dialdehyde β-cyclodextrin

[0078] Weigh out 11.0 g of β-cyclodextrin and 110.0 mL of deionized water and add them to the reaction vessel. Stir until dissolved, then cool the reaction vessel to 8 °C and add 5.50 g of sodium periodate. Keep warm and stir for 3 h in the dark, then add 1.8 mL of ethylene glycol and continue stirring for 30 min. After stirring is complete, heat the reaction vessel to 60 °C and depressurize it to 20 kPa. Distill until no liquid is collected to obtain dialdehyde β-cyclodextrin.

[0079] Step 2: Preparation of compound anti-mite finishing agent

[0080] Weigh out 11.0 g chitosan, 25.0 mL 1 mol / L hydrochloric acid aqueous solution and 500.0 mL deionized water and add them to the reaction vessel. Heat the reaction vessel to 30℃ and stir until dissolved. Then add 10.0 g dialdehyde β-cyclodextrin and 4.0 mL cinnamaldehyde. Stir for 3 h and then cool the reaction vessel to 3℃. Add 4.0 g sodium borohydride and stir for 2 h. After the reaction is complete, adjust the pH of the reaction system to 7, heat the reaction vessel to 60℃ and depressurize to 20 kPa. Distill until no liquid is collected to obtain the composite anti-mite finishing agent.

[0081] Example 7

[0082] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0083] Step ①: Preparation of lactic acid modified polyols

[0084] Weigh out 96.0 g of epoxidized soybean oil and 20.0 mL of 80 wt% lactic acid aqueous solution and add them to the reaction vessel. Stir and mix well. Then add 0.4 g of p-toluenesulfonic acid and 0.10 g of butylated hydroxytoluene. Heat the reaction vessel to 90 °C and keep it at that temperature for 3 h with stirring. After the reaction is complete, adjust the pH of the reaction system to 6, heat the reaction vessel to 60 °C and reduce the pressure to 20 kPa. Distill until no liquid is collected to obtain lactic acid modified polyol.

[0085] Step 2: Preparation of heat-insulating and moisture-permeable finishing agent

[0086] Weigh 72.0g of lactic acid modified polyol and add it to the reactor. Under nitrogen protection, heat the reactor to 60℃ and stir. Add 36.0mL of hexamethylene diisocyanate and 0.16mL of dibutyltin dilaurate. After stirring for 2 hours, add 40.0g of silica sol and continue stirring for 20 minutes. When the reaction is complete, cool the reactor to 50℃ and reduce the pressure to 20kPa. Distill until no liquid is collected to obtain the heat-insulating and moisture-permeable finishing agent.

[0087] Example 8

[0088] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0089] Step ①: Preparation of lactic acid modified polyols

[0090] Weigh 100.0g of epoxidized soybean oil and 24.0mL of 80wt% lactic acid aqueous solution and add them to the reaction vessel. Stir and mix evenly. Then add 0.4g of p-toluenesulfonic acid and 0.10g of dibutylhydroxytoluene. Heat the reaction vessel to 110℃ and keep it at this temperature for 5 hours with stirring. After the reaction is complete, adjust the pH of the reaction system to 7, heat the reaction vessel to 60℃ and reduce the pressure to 20kPa. Distill until no liquid is collected to obtain lactic acid modified polyol.

[0091] Step 2: Preparation of heat-insulating and moisture-permeable finishing agent

[0092] Weigh 80.0g of lactic acid modified polyol and add it to the reactor. Under nitrogen protection, heat the reactor to 70℃ and stir. Add 40.0mL of hexamethylene diisocyanate and 0.16mL of dibutyltin dilaurate. After stirring for 3 hours, add 40.0g of silica sol and continue stirring for 30 minutes. When the reaction is complete, cool the reactor to 50℃ and reduce the pressure to 20kPa. Distill until no liquid is collected to obtain the heat-insulating and moisture-permeable finishing agent.

[0093] Example 9

[0094] This embodiment provides a method for preparing a compound anti-mite finishing agent, including the following steps:

[0095] Step ①: Preparation of lactic acid modified polyols

[0096] Weigh out 98.0g of epoxidized soybean oil and 21.0mL of 80wt% lactic acid aqueous solution and add them to the reaction vessel. Stir and mix evenly. Then add 0.4g of p-toluenesulfonic acid and 0.10g of dibutylhydroxytoluene. Heat the reaction vessel to 100℃ and keep it at this temperature for 4 hours with stirring. After the reaction is complete, adjust the pH of the reaction system to 7, heat the reaction vessel to 60℃ and reduce the pressure to 20kPa. Distill until no liquid is collected to obtain lactic acid modified polyol.

[0097] Step 2: Preparation of heat-insulating and moisture-permeable finishing agent

[0098] Weigh 75.0g of lactic acid modified polyol and add it to the reactor. Under nitrogen protection, heat the reactor to 65℃ and stir. Add 38.0mL of hexamethylene diisocyanate and 0.16mL of dibutyltin dilaurate. After stirring for 3 hours, add 40.0g of silica sol and continue stirring for 25 minutes. When the reaction is complete, cool the reactor to 50℃ and reduce the pressure to 20kPa. Distill until no liquid is collected to obtain the heat-insulating and moisture-permeable finishing agent.

[0099] Example 10

[0100] This embodiment provides a method for preparing green home textile fabric based on biodegradable fibers, including the following steps:

[0101] Step 1: Preparation of functional copolyester fibers

[0102] Weigh 200.0g of the cyclic carbonate functional copolyester prepared in Example 1 and add it to a melt spinning machine. Set the extrusion temperature to 180℃ and melt-extrude it into filaments. After cooling, forming, hot stretching and setting treatment, functional copolyester fibers with a single filament fineness of 1.2dtex and a yarn linear density of 100dtex are obtained.

[0103] Step 2: Preparation of functional copolyester fabric

[0104] Weigh out 180.0g of functional copolyester fiber warp yarns and twist them, then feed them into a circular knitting machine or warp knitting machine. Use a 32-gauge needle cylinder for knitting to obtain a knitted fabric. Set the knitted fabric at 130℃ for 20 seconds, then cool and wind it up to obtain a weight of 100g / m². 2 A functional copolyester fabric with a warp density of 200 threads / 10cm, a weft density of 180 threads / 10cm, a width of 160cm, and a fabric thickness of 0.20mm.

[0105] Step 3: Preparation of anti-mite copolyester fabric

[0106] Weigh out 40.0g of the composite anti-mite finishing agent prepared in Example 4 and mix it with 200.0mL of deionized water. After adjusting the pH to 5, the anti-mite finishing solution is obtained.

[0107] Weigh out 10.0g of functional copolyester fabric and impregnate it with 180.0mL of anti-mite finishing solution for 3min. Control the residual rate to 70% by using a rolling mill. Then pre-dry it at 80℃ for 1min and bake it at 140℃ for 2min. After cooling, the anti-mite copolyester fabric is obtained.

[0108] Step 4: Preparation of green home textile fabrics

[0109] Weigh out 75.0g of the heat-insulating and moisture-permeable finishing agent prepared in Example 7 and mix it with 150.0mL of deionized water to obtain the anti-mite finishing solution;

[0110] Weigh out 10.0g of anti-mite copolyester fabric, immerse it in 120.0mL of moisture-permeable finishing solution for 2min, control the residual rate to 60% by using a rolling mill, pre-dry at 80℃ for 1min, bake at 130℃ for 2min, and obtain green home textile fabric after cooling.

[0111] Example 11

[0112] This embodiment provides a method for preparing green home textile fabric based on biodegradable fibers, including the following steps:

[0113] Step 1: Preparation of functional copolyester fibers

[0114] Weigh 200.0g of the cyclic carbonate functional copolyester prepared in Example 2 and add it to a melt spinning machine. Set the extrusion temperature to 210℃ and melt-extrude it into filaments. After cooling, forming, hot stretching and setting treatment, functional copolyester fibers with a single filament fineness of 1.6dtex and a yarn linear density of 120dtex are obtained.

[0115] Step 2: Preparation of functional copolyester fabric

[0116] Weigh out 180.0g of functional copolyester fiber, twist it, and feed it into a circular knitting machine or warp knitting machine. Use a 32-gauge needle cylinder for knitting to obtain a knitted fabric. Then, set the knitted fabric at 140℃ for 40s, cool and wind it up to obtain a weight of 120g / m². 2 A functional copolyester fabric with a warp density of 220 threads / 10cm, a weft density of 200 threads / 10cm, a width of 180cm, and a fabric thickness of 0.30mm.

[0117] Step 3: Preparation of anti-mite copolyester fabric

[0118] Weigh out 60.0g of the composite anti-mite finishing agent prepared in Example 5 and mix it with 200.0mL of deionized water. After adjusting the pH to 6, the anti-mite finishing solution is obtained.

[0119] Weigh out 10.0g of functional copolyester fabric and impregnate it with 200.0mL of anti-mite finishing solution for 5min. Control the residual rate to 80% by using a rolling mill. Then pre-dry at 100℃ for 2min and bake at 160℃ for 3min. After cooling, the anti-mite copolyester fabric is obtained.

[0120] Step 4: Preparation of green home textile fabrics

[0121] Weigh out 90.0g of the heat-insulating and moisture-permeable finishing agent prepared in Example 8 and mix it with 150.0mL of deionized water to obtain the anti-mite finishing solution;

[0122] Weigh out 10.0g of anti-mite copolyester fabric, immerse it in 150.0mL of moisture-permeable finishing solution for 4min, control the residual rate to 70% by using a rolling mill, pre-dry at 100℃ for 2min, bake at 150℃ for 3min, and obtain green home textile fabric after cooling.

[0123] Example 12

[0124] This embodiment provides a method for preparing green home textile fabric based on biodegradable fibers, including the following steps:

[0125] Step 1: Preparation of functional copolyester fibers

[0126] Weigh 200.0g of the cyclic carbonate functional copolyester prepared in Example 3 and add it to a melt spinning machine. Set the extrusion temperature to 200℃ and melt-extrude it into filaments. After cooling, forming, hot stretching and setting treatment, functional copolyester fibers with a single filament fineness of 1.5dtex and a yarn linear density of 120dtex are obtained.

[0127] Step 2: Preparation of functional copolyester fabric

[0128] Weigh out 180.0g of functional copolyester fiber, twist it, and feed it into a circular knitting machine or warp knitting machine. Use a 32-gauge needle cylinder for knitting to obtain a knitted fabric. Then, set the knitted fabric at 140℃ for 30 seconds, cool and wind it up to obtain a weight of 120g / m². 2 A functional copolyester fabric with a warp density of 210 threads / 10cm, a weft density of 180 threads / 10cm, a width of 180cm, and a fabric thickness of 0.25mm.

[0129] Step 3: Preparation of anti-mite copolyester fabric

[0130] Weigh out 50.0g of the composite anti-mite finishing agent prepared in Example 6 and mix it with 200.0mL of deionized water. After adjusting the pH to 5, the anti-mite finishing solution is obtained.

[0131] Weigh out 10.0g of functional copolyester fabric and impregnate it with 190.0mL of anti-mite finishing solution for 4min. Control the residual rate to 75% by using a rolling mill. Then pre-dry it at 90℃ for 2min and bake it at 150℃ for 3min. After cooling, the anti-mite copolyester fabric is obtained.

[0132] Step 4: Preparation of green home textile fabrics

[0133] Weigh out 80.0g of the heat-insulating and moisture-permeable finishing agent prepared in Example 9 and mix it with 150.0mL of deionized water to obtain the anti-mite finishing solution;

[0134] Weigh out 10.0g of anti-mite copolyester fabric, immerse it in 135.0mL of moisture-permeable finishing solution for 3min, control the residual rate to 65% by using a rolling mill, pre-dry at 90℃ for 2min, bake at 140℃ for 3min, and obtain green home textile fabric after cooling.

[0135] Comparative Example 1

[0136] The difference between this comparative example and Example 12 is that step (1) of the preparation process of the composite anti-mite finishing agent used in step three is omitted, and in step (2) β-cyclodextrin is used to replace dialdehyde β-cyclodextrin in an equal amount.

[0137] Comparative Example 2

[0138] The difference between this comparative example and Example 12 is that the heat-insulating and moisture-permeable finishing agent used in step four is omitted in step ① during the preparation process, and epoxidized soybean oil is used in step ② to replace lactic acid modified polyol in an equal amount.

[0139] Comparative Example 3

[0140] The difference between this comparative example and Example 12 is that step four is omitted, and the mite-proof copolyester fabric produced in step three is used as a green home textile fabric.

[0141] Performance testing:

[0142] The mite inhibition rate of the green home textile fabrics prepared in Examples 10-12 and Comparative Examples 1-3 was evaluated in accordance with the standard GB / T 24253-2009 "Evaluation of anti-mite performance of textiles".

[0143] The thermal resistance and moisture resistance of the green home textile fabrics prepared in Examples 10-12 and Comparative Examples 1-3 were tested in accordance with the standard GB / T 11048-2018 "Determination of thermal resistance and moisture resistance of textiles under steady-state conditions for physiological comfort (evaporative hot plate method)".

[0144] Referring to the standard GB / T 41010-2021 "Degradation Performance and Labeling Requirements of Biodegradable Plastics and Products", the green home textile fabrics prepared in Examples 10-12 and Comparative Examples 1-3 were tested for disintegration rate at 12 weeks and biodegradation rate at 180 days under industrial composting conditions, as well as biodegradation rate at 180 days, 1 year and 2 years under soil conditions. The specific data are shown in Table 1.

[0145] Table 1 - Biodegradability Performance Test Data for Each Sample

[0146]

[0147] Data Analysis:

[0148] Comparative analysis of the data in Table 1 reveals that the green home textile fabric prepared by this invention exhibits a mite inhibition rate of 96.3% and a thermal resistance of 0.85 μm. 2 ·K·W -1 Moisture resistance 8.4m 2 ·Pa·W -1 Meanwhile, the weekly disintegration rate under industrial composting conditions was 80.9%, and the biodegradation rate was 85.9%. Under soil conditions, the 180-day biodegradation rate was 75.8%, and the 1-year biodegradation rate was 86.4%. All these data are superior to the comparative example, indicating that:

[0149] In Comparative Example 1, step (1) was omitted during the preparation of the composite anti-mite finishing agent, and in step (2), β-cyclodextrin was used to replace dialdehyde β-cyclodextrin in an equal amount. This caused the system to lose the reaction sites that could undergo directional condensation with chitosan molecules and the fabric matrix. The finishing agent degenerated from "chemical cross-linking fixation" to a binding mode mainly based on physical adsorption and weak forces. Due to the decrease in fixation point density, the continuity and compactness of the film formed by the finishing layer on the fabric surface were weakened. The migration and loss of functional small molecules during washing and friction were aggravated. The retention rate of the anti-mite effective ingredients during use was significantly reduced, and the structural stability and durability of the finishing layer were weakened. Consequently, the anti-mite effect rapidly decayed after repeated use and washing, and the overall anti-mite performance and durability declined.

[0150] In Comparative Example 2, step ① was omitted during the preparation of the heat-insulating and moisture-permeable finishing agent, and in step ②, epoxidized soybean oil was used to replace the lactic acid-modified polyol in an equal amount. This caused the system to lose the regular network structure formed by the fine matching of hydrophilic and hydrophobic segments. The compatibility and micro-dispersion state of the finishing agent during the curing process deteriorated. Due to the disruption of the distribution of flexible segments and the layout of polar groups, the continuous film phase formed by the finishing layer on the fabric surface was more prone to local aggregation and phase separation. The heat transfer path and water vapor transport channel were no longer uniform, resulting in the obstruction or excessive concentration of heat and moisture at the microscale. This caused the balance between heat insulation and moisture permeability to be disrupted, and the temperature and humidity regulation of the fabric surface tended to be unbalanced. The overall physiological comfort decreased to varying degrees compared with the example.

[0151] Comparative Example 3 directly omits step four, using the anti-mite copolyester fabric obtained in step three as the final green home textile fabric. This causes the system to lose the gradient functional structure jointly constructed by the outer heat-insulating and moisture-permeable finishing agent and the inner anti-mite finishing agent. Since the surface no longer forms a composite finishing film that combines thermal resistance regulation and fine moisture resistance adjustment, the fabric only retains a single anti-mite functional layer. The synergistic heat and moisture conduction channels between the interfaces cannot be established. The migration of heat and moisture between the warp and weft fibers mainly relies on the relatively rough and undesigned pore structure of the fabric itself. The multi-field coupling regulation capability is weakened, making the fabric less responsive to temperature fluctuations and humidity changes under different environmental conditions. The overall heat-insulating and moisture-permeable performance and wearing comfort are significantly lower than those of the sample obtained by the complete process.

[0152] This invention constructs a multi-layered functional system consisting of cyclic carbonate functional copolyester, a composite anti-mite finishing agent, and a heat-insulating and moisture-permeable finishing agent. This system enables the resulting green home textile fabric to achieve a stable and balanced structural characteristic between anti-mite performance, physiological comfort, and environmental friendliness. The cyclic carbonate functional copolyester provides a good fiber-forming foundation, the composite anti-mite finishing agent endows the fabric with long-lasting bio-inhibition capabilities, and the heat-insulating and moisture-permeable finishing agent forms a microscopic continuous film layer on the fabric surface, maintaining regular heat transfer paths and moisture diffusion channels, thereby achieving high thermal resistance and suitable moisture resistance levels. Simultaneously, its internal biodegradable structure exhibits stable decomposition behavior in industrial composting and soil environments, giving the fabric good environmental adaptability. The matching of various materials and processes makes the performance more comprehensive, ultimately achieving full coordination among anti-mite, heat-insulating, moisture-permeable, and biodegradable properties, resulting in a green home textile fabric with excellent comprehensive application value.

[0153] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for preparing green home textile fabric based on biodegradable fibers, characterized in that, Includes the following steps: S1. Add cyclic carbonate functional copolyester to a melt spinning machine, set the extrusion temperature to 180-210℃, melt extrude into filaments, and obtain functional copolyester fibers after cooling, forming, hot stretching and setting treatment. S2. After twisting the functional copolyester fiber into a warp winding machine or a warp knitting machine, knit the fabric using a 32-gauge needle cylinder to obtain a knitted fabric, and then process it to obtain the functional copolyester fabric. S3. Impregnate the functional copolyester fabric with the anti-mite finishing solution for 3-5 minutes. Control the residual rate to 70-80% by using a rolling mill. Post-treatment yields the anti-mite copolyester fabric. The anti-mite finishing solution is obtained by mixing a composite anti-mite finishing agent and deionized water at a ratio of 2-3g:10mL and adjusting the pH to 5-6. S4. Immerse the anti-mite copolyester fabric in the moisture-permeable finishing solution for 2-4 minutes. Control the residual rate to 60-70% using a rolling mill. The post-treatment yields green home textile fabric. The anti-mite finishing solution is prepared by mixing a heat-insulating and moisture-permeable finishing agent and deionized water at a ratio of 5-6g:10mL.

2. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 1, characterized in that, In step S1, the monofilament fineness of the functional copolyester fiber is 1.2-1.6 dtex, and the yarn linear density is 100-120 dtex; in step S2, the basis weight of the functional copolyester fabric is 100-120 g / m². 2 The warp density is 200-220 threads / 10cm, the weft density is 180-200 threads / 10cm, the width is 160-180cm, and the fabric thickness is 0.20-0.30mm.

3. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 1, characterized in that, In step S3, the ratio of the functional copolyester fabric to the anti-mite finishing liquid is 1g:18-20mL; in step S4, the ratio of the anti-mite copolyester fabric to the moisture-permeable finishing liquid is 1g:12-15mL.

4. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 1, characterized in that, The cyclic carbonate functional copolyester was prepared by the following method: A1. Succinic acid, adipic acid, 1,4-butanediol, sorbitol and tetra-n-butoxytitanium are added to a reaction vessel and stirred. Under nitrogen protection, the reaction vessel is heated to 180-200℃, stirred and kept at this temperature. The pressure is then reduced to 30-40 kPa within 15-20 min, and then reduced to 5-10 kPa within 15-30 min. The reaction is then carried out at a constant temperature and pressure for 2-3 h. The aliphatic copolymer prepolymer is obtained after post-treatment. A2. Add the aliphatic copolymer prepolymer to the reactor, heat the reactor to 80-100℃ and stir until melted, then add dimethyl carbonate and potassium carbonate, then heat the reactor to 120-140℃ and keep it at that temperature for 2-3 hours. The post-treatment yields the cyclic carbonate functional copolyester.

5. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 4, characterized in that, In step A1, the ratio of succinic acid, adipic acid, 1,4-butanediol, sorbitol, and tetrabutoxytitanium is 120g:40-50g:120mL:8-10g:0.8-1.0mL; in step A2, the ratio of aliphatic copolymer prepolymer, dimethyl carbonate, and potassium carbonate is 180-200g:8-12mL:0.4-0.6g.

6. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 1, characterized in that, The composite anti-mite finishing agent is prepared by the following method: B1. Add β-cyclodextrin and deionized water to the reaction vessel and stir until dissolved. Then, cool the reaction vessel to 5-10℃ and add sodium periodate. Keep warm and stir for 2-4 hours in the dark. Then add ethylene glycol and continue stirring for 30 minutes. The post-treatment yields dialdehyde β-cyclodextrin. B2. Add chitosan, 1 mol / L hydrochloric acid aqueous solution and deionized water to the reaction vessel. Heat the reaction vessel to 25-35℃ and stir until dissolved. Then add dialdehyde β-cyclodextrin and cinnamaldehyde. Stir for 2-3 hours. Then cool the reaction vessel to 0-5℃, add sodium borohydride, and stir for 1-2 hours. The post-treatment yields the composite anti-mite finishing agent.

7. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 6, characterized in that, In step B1, the ratio of β-cyclodextrin, deionized water, sodium periodate, and ethylene glycol is 10-12g:100-120mL:5-6g:1.5-2.0mL; in step B2, the ratio of chitosan, 1mol / L hydrochloric acid aqueous solution, deionized water, dialdehyde β-cyclodextrin, cinnamaldehyde, and sodium borohydride is 10-12g:20-30mL:500mL:10g:3-5mL:3-5g.

8. The method for preparing a green home textile fabric based on biodegradable fibers according to claim 1, characterized in that, The heat-insulating and moisture-permeable finishing agent is prepared by the following method: C1. Add epoxidized soybean oil and 80wt% lactic acid aqueous solution to a reaction vessel and stir. After mixing evenly, add p-toluenesulfonic acid and dibutylhydroxytoluene. Heat the reaction vessel to 90-110℃ and keep it at that temperature for 3-5 hours. The lactic acid modified polyol is then obtained through post-treatment. C2. Add lactic acid-modified polyol to the reactor, heat the reactor to 60-70℃ under nitrogen protection and stir, add hexamethylene diisocyanate and dibutyltin dilaurate, keep warm and stir for 2-3 hours, then add silica sol, continue to keep warm and stir for 20-30 minutes, and then obtain the heat-insulating and moisture-permeable finishing agent.

9. A method for preparing a green home textile fabric based on biodegradable fibers according to claim 8, characterized in that, In step C1, the ratio of epoxidized soybean oil, 80wt% lactic acid aqueous solution, p-toluenesulfonic acid and butylated hydroxytoluene is 48-50g:10-12mL:0.2g:0.05g; in step C2, the ratio of lactic acid modified polyol, hexamethylene diisocyanate, dibutyltin dilaurate and silica sol is 18-20g:9-10mL:0.04mL:10g.

10. A green home textile fabric based on biodegradable fibers, characterized in that, The green home textile fabric based on biodegradable fibers is prepared using the preparation method of a green home textile fabric based on biodegradable fibers as described in any one of claims 1-9.

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