Biodegradable shirt and preparation device thereof

Abstract

The invention discloses a biodegradable shirt. The fabric of the shirt is formed by weaving biodegradable fiber yarns, the biodegradable cellosilk is prepared from the following raw materials in percentage by weight: 20 to 25 percent of PBAT thermoplastic biodegradable plastic, 15 to 20 percent of PGA, 10 to 15 percent of poly (butylene terephthalate)-adipic acid-butylene glycol ester, 10 to 15 percent of graphene modified epoxy resin, 5 to 10 percent of silver nano ion powder, 3 to 8 percent of white carbon black, 5 to 10 percent of corn starch, 5 to 10 percent of polyethylene copolymer, 3 to 5 percent of polyester plasticizer and 1 to 3 percent of pigment. 1-3% of an antioxidant; wherein the polyester plasticizer is prepared from dibasic acid, dihydric alcohol and trihydric alcohol through copolymerization; the fabric provided for the shirt is formed by weaving the biodegradable fibers, and the biodegradable fibers are obtained by proportioning various raw materials, so that the degradation speed can be increased, and the shirt integrates excellent gas barrier property, good biocompatibility, excellent mechanical property and excellent degradability.

Description

Technical Field

[0001] This invention relates to the field of clothing, specifically to a biodegradable shirt and its preparation apparatus. Background Technology

[0002] With increasing environmental awareness, people are demanding more and more stringent environmental performance from clothing while pursuing its aesthetics and comfort. As everyday items closely related to human life, the environmental impact of clothing throughout its entire life cycle has become a focus of social attention.

[0003] The pollution problems caused by traditional clothing production and disposal are becoming increasingly prominent. In the production stage, clothing made from synthetic fibers consumes large amounts of non-renewable resources and releases various toxic and harmful chemicals, such as dyes and auxiliaries. These substances, once released into water bodies and soil, disrupt the ecological balance and affect the survival of plants and animals. In the disposal stage, non-degradable synthetic fiber clothing, such as clothing made of polyester and nylon, is difficult to decompose by microorganisms in the natural environment if landfilled after disposal. It may take decades or even centuries to complete the degradation process. This not only occupies a large amount of valuable land resources but also slowly releases residual harmful chemicals during the long decomposition process, continuously polluting the soil and groundwater, causing long-term and irreversible damage to the surrounding ecosystem.

[0004] Incinerating these discarded garments would also cause serious air pollution. When synthetic fibers are burned at high temperatures, they produce large amounts of toxic and harmful gases, including highly carcinogenic substances such as dioxins. Once these gases enter the atmosphere, they not only damage the ozone layer and exacerbate the greenhouse effect, but also enter the human body through respiration, posing a threat to human health.

[0005] Against this backdrop, the environmental shortcomings of traditional clothing can no longer meet the needs of sustainable development in modern society, making the development of clothing products that can be rapidly biodegraded in the natural environment and are environmentally friendly an urgent priority. Summary of the Invention

[0006] The purpose of this invention is to provide a biodegradable shirt and its preparation device, aiming to improve the problem of poor shirt degradation ability and environmental pollution caused by traditional treatment methods.

[0007] This invention is achieved as follows: a biodegradable shirt, the fabric of which is woven from biodegradable fiber filaments, the biodegradable fiber filaments comprising the following raw materials in parts by weight: 20-25% PBAT thermoplastic biodegradable plastic, 15-20% PGA, 10-15% polybutylene terephthalate-adipate, 10-15% graphene-modified epoxy resin, 5-10% silver nanoparticle powder, 3-8% silica, 5-10% corn starch, 5-10% polyethylene copolymer, 3-5% polyester plasticizer, 1-3% colorant, and 1-3% antioxidant; wherein the polyester plasticizer is obtained by copolymerization of diacid, diol and triol.

[0008] As one embodiment of the present invention, the shirt is configured with a detachable structure, including a body for covering the chest and back of the body and sleeves for covering the arms. The body is composed of a detachable inner layer and an outer layer. When worn, the inner layer is close to the torso, and the outer layer is disposed on the surface of the inner layer. The outer layer is made of a biodegradable material.

[0009] A biodegradable shirt manufacturing apparatus includes a mixing system, a refining system, a granulation system, a spinning system, a weaving system, a cutting system, and a sewing system; The mixing system is used to mix shirt raw materials in parts by weight to form a mixture; The refining system is used to refine the mixture. The refining process is divided into three stages, each with its own temperature range and critical temperature stopping time. The granulation system is used to produce biodegradable plastic granules from the refined raw materials, and the plastic granules are cooled by a cooling device. The spinning system is used to spin biodegradable plastic granules and then cool, draw and set them to obtain biodegradable fiber filaments; Weaving systems are used to weave biodegradable fiber filaments into biodegradable fabrics; The cutting system is used to cut biodegradable fabrics into the desired shapes; The sewing system uses stitching or heat pressing to seal and connect the cut fabric components to create a biodegradable shirt.

[0010] In one embodiment of the present invention, the cutting system includes a cutting component and a receiving component distributed vertically, as well as two sets of material support components distributed on the left and right sides of the cutting component; the fabric is laid on the material support components and passes through the cutting component, while the material support components transport the fabric relative to the cutting component; the cut fabric falls from the cutting component onto the receiving component, and the receiving component transports the cut fabric away from the cutting component.

[0011] As one embodiment of the present invention, the material support assembly includes a bracket, a support and conveying mechanism disposed on the top of the bracket, and a limiting mechanism mounted on the bracket. The limiting mechanism is configured as a U-shaped structure with the opening facing downward, and the bottom of the limiting mechanism is connected to the bracket. At the same time, the limiting mechanism is in contact with the fabric laid on the support and conveying mechanism.

[0012] In one embodiment of the present invention, the supporting conveying mechanism includes an annular belt and multiple parallel supporting rollers that pass through the annular belt. The ends of the supporting rollers protruding from the annular belt are connected to the support plate of the bracket via a second bearing seat, and adjacent supporting rollers are connected by a chain and sprocket. At the same time, a motor mounted on the support plate controls the rotation of a certain supporting roller. A support device is provided between adjacent supporting rollers. The support device includes a support plate and a support frame provided below the support plate. The bottom of the support frame is mounted on the bracket, the top surface of the support plate contacts the annular belt, and the supporting rollers are provided near the arc-shaped groove of the support plate.

[0013] In one embodiment of the present invention, the limiting mechanism includes a pressure roller, a lifting block connected to the end of the pressure roller via a first bearing seat, and a fixed plate located below the lifting block and fixedly connected to a bracket. A vertical rod mounted on the fixed plate passes through the lifting block, and the bottom of an adjusting screw threaded through the lifting block passes through the fixed plate via a bearing. At the same time, two first sprockets at the ends of the adjusting screws are connected by a chain.

[0014] In one embodiment of the present invention, the cutting assembly includes a base frame connected to a support, a material dropping mechanism hinged to the top of the base frame, a drive mechanism mounted above the base frame, and a cutting die located above the material dropping mechanism and mounted on the drive mechanism; the drive mechanism controls the cutting die to descend and cut the fabric, and the shaped fabric falls onto the receiving assembly after the state of the material dropping mechanism is adjusted.

[0015] In one embodiment of the present invention, the base frame includes an upper frame and a lower frame distributed vertically. The lower frame is connected to the support, and a connecting plate is fixedly provided on the side of the lower frame. The unloading mechanism includes two flip plates symmetrically arranged on the inner side of the upper frame and a second telescopic cylinder hinged to the bottom of each flip plate. The bottom of the second telescopic cylinder is hinged to the connecting plate. The edges of the support frames located below the two flip plates are connected to the upper frame by hinges.

[0016] In one embodiment of the present invention, the driving mechanism includes two parallel guide rails and two vertical frames respectively disposed at both ends of the guide rails. The bottom of the vertical frame is connected to the base frame, and a triangular sleeve slidably fitted on the vertical frame is fitted onto the guide rail. At the same time, the telescopic end of the first telescopic cylinder, which is inverted and installed on the top of the vertical frame, is connected to the triangular sleeve. The cutting die includes a stamping device and a pressure plate located inside the stamping device. A cutting blade is provided at the bottom of the stamping device, and a connecting pipe is installed on the indentation plate at the top of the stamping device. The connecting pipe is fitted onto the guide rail. A guide rod installed above the pressure plate passes through the indentation plate, and the two ends of a spring fitted on the guide rod in a compressed state are in contact with the indentation plate and the pressure plate respectively.

[0017] The beneficial effects of this invention are: 1. The fabric provided by this invention for shirts is woven from biodegradable fiber filaments, and the biodegradable fiber filaments are obtained from a variety of raw material ratios, which can improve the degradation rate and make the shirt combine excellent gas barrier properties, good biocompatibility, excellent mechanical properties and outstanding degradability.

[0018] 2. The cutting system of this invention includes a cutting component and a receiving component distributed vertically, and two sets of material supporting components distributed on the left and right sides of the cutting component. The material supporting components control the movement of multiple stacked fabric sheets to the cutting component. The cutting component can then cut the fabric. Afterward, the state of the bottom of the cutting component changes, and the formed fabric falls from the bottom of the cutting component onto the receiving component, which then supports the formed fabric away from the cutting component. This operation method improves the efficiency of fabric cutting and transfer, and changes the manual method of separating the formed fabric from the main fabric.

[0019] 3. The cutting system provided in this invention can be equipped with winding devices located on both sides. The rolled fabric is installed on the winding device on one side, and the fabric processed by the cutting components is wound onto the winding device on the other side. Through the cooperation of the winding device and the cutting system, continuous cutting of the fabric can be achieved, further improving cutting efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and characteristics of the invention more apparent. The illustrative embodiments of the invention, along with their descriptions, are used to explain the invention and do not constitute an undue limitation of the invention.

[0021] Figure 1 This is a first structural schematic diagram of the cutting system of the present invention; Figure 2 This is a schematic diagram of the second structure of the cutting system of the present invention; Figure 3 This is a schematic diagram of the third structure of the cutting system of the present invention; Figure 4 This is a schematic diagram of the material support assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the bracket of the present invention; Figure 6 This is a schematic diagram of the limiting mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the conveying mechanism of the present invention; Figure 8 This is a schematic diagram of the structure of the support device of the present invention; Figure 9 This is a schematic diagram of the cutting component of the present invention; Figure 10 This is a schematic diagram of the structure of the base frame of the present invention; Figure 11 This is a schematic diagram of the material feeding mechanism of the present invention; Figure 12 This is a schematic diagram of the drive mechanism and cutting mold of the present invention; Figure 13 This is a schematic diagram of the cutting mold of the present invention; Figure 14 This is a schematic diagram of the structure of the stamping device of the present invention; Figure 15 This is a schematic diagram of the structure of the pressure plate of the present invention.

[0022] In the diagram: receiving assembly 1; material support assembly 2; bracket 21; support leg 211; splicing pipe 212; splicing block 213; support plate 214; sleeve frame 215; supporting conveyor mechanism 22; ring belt 221; supporting roller 222; support device 223; support plate 2231; arc groove 2232; support frame 2233; limiting mechanism 23; pressure roller 231; lifting block 232; first bearing seat 233; vertical rod 234; adjusting screw 235; fixing plate 236; first chain Wheel 237; Cutting assembly 3; Drive mechanism 31; Vertical frame 311; First telescopic cylinder 312; Guide rail 313; Triangular sleeve 314; Cutting mold 32; Stamping device 321; Pressure plate 322; Cutting blade 323; Folding plate 324; Connecting pipe 325; Spring 326; Guide rod 327; Material feeding mechanism 33; Hinge 331; Support frame 332; Second telescopic cylinder 333; Flipping plate 334; Base frame 34; Upper frame 341; Lower frame 342; Connecting plate 343. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Example 1: In order to improve the degradation ability of shirts and reduce environmental pollution, this example provides a technical solution for degrading shirts.

[0026] The fabric of this biodegradable shirt is woven from biodegradable fiber filaments, which include the following raw materials in parts by weight: 20-25% PBAT thermoplastic biodegradable plastic, 15-20% PGA, 10-15% polybutylene terephthalate-adipate, 10-15% graphene-modified epoxy resin, 5-10% silver nanoparticle powder, 3-8% silica, 5-10% corn starch, 5-10% polyethylene copolymer, 3-5% polyester plasticizer, 1-3% colorant, and 1-3% antioxidant; wherein, the polyester plasticizer is obtained by copolymerization of diacid, diol and triol.

[0027] This specific raw material formulation enhances the degradation rate, resulting in shirts that combine excellent gas barrier properties, good biocompatibility, superior mechanical properties, and outstanding biodegradability. The addition of polybutylene terephthalate (PBAT), graphene-modified epoxy resin, silica, polyester plasticizer, and antioxidants promotes the mixing reaction, improving the compatibility of the raw materials and thus enhancing the overall performance of the material while making it more environmentally friendly. PBAT thermoplastic biodegradable plastic, PGA, PBAT, and corn starch, among other main ingredients, all possess excellent biodegradability or hydrolysis properties, effectively achieving the shirt's biodegradability goal. The addition of silver nanoparticle powder imparts antibacterial properties to the shirt, making it even more suitable for human wear.

[0028] The shirt features a detachable design, comprising a main body covering the chest and back, and sleeves covering the arms. The main body consists of a detachable inner layer and an outer layer. When worn, the inner layer fits close to the torso, while the outer layer rests on top of the inner layer. The outer layer is made of biodegradable material, forming a biodegradable layer. This design allows the outer layer to reflect the style and fashion of the garment; one inner layer can be paired with multiple different outer layers, allowing consumers to easily change the outer layer according to personal preference and styling needs, greatly improving the garment's styling flexibility. Simultaneously, the inner layer is durable, especially when made of skin-friendly materials, effectively improving material utilization and reducing waste. When the garment becomes obsolete due to style or other reasons, only the outer layer needs to be discarded; its biodegradable properties significantly reduce environmental pollution.

[0029] The inner and outer layers can be connected together using various methods such as adhesive, buttons, and straps, facilitating disassembly and replacement. Preferably, the inner layer is loaded with nano-silver particles, which have an antibacterial effect when in contact with the body, further improving wearing comfort and safety.

[0030] To produce the aforementioned shirts, a mixing system, a refining system, a granulation system, a spinning system, a weaving system, a cutting system, and a sewing system are required. These systems work together to achieve efficient production from raw materials to finished shirts.

[0031] The mixing system is used to thoroughly mix raw materials weighed according to their weight ratio, including PBAT thermoplastic biodegradable plastic, PGA, polybutylene terephthalate (PET), graphene-modified epoxy resin, silver nanoparticle powder, silica, corn starch, polyethylene copolymer, polyester plasticizer, colorants, and antioxidants, to form a homogeneous mixture. The mixing machine uses a high-efficiency stirring device to ensure that the various raw materials are mixed evenly in a short time, improving production efficiency.

[0032] The refining system feeds the mixture obtained from the mixing system into the refining mill for refining. The temperature changes inside the refining mill are divided into three stages: the first stage is 25℃-45℃; the second stage is 45℃-60℃; and the third stage is 60℃-120℃. At the critical temperature between the first and second stages, heating is stopped for 10 minutes to allow the raw materials to react fully. At the critical temperature between the second and third stages, heating is stopped for 15 minutes to further promote the reaction. When the temperature in the third stage reaches 80℃, refining is stopped for 20 minutes, and the temperature of the refining mill is maintained constant to ensure optimal refining results.

[0033] The granulation system feeds the raw materials obtained from the refining system into a granulator to produce biodegradable plastic granules. A cooling device, such as a water-cooling device, is installed at the outlet of the granulator. This device includes a cold water tank, a perforated baffle plate within the cold water tank, a water pump connected to a water suction pipe located at the top of the cold water tank, and a hole in the perforated baffle plate. The perforated baffle plate has a hole through which a discharge pipe is fitted. The discharge pipe passes through the hole in the perforated baffle plate and extends into the cold water tank. A cold water inlet pipe is located at the bottom of the cold water tank, through which cooling water is introduced to rapidly cool the high-temperature biodegradable plastic granules produced by the granulator, ensuring the quality of the granules.

[0034] The spinning system feeds biodegradable plastic granules obtained from the granulation system into a spinning machine for spinning. The granules are then cooled, drawn, and set to obtain biodegradable fiber filaments. The spinning machine employs advanced spinning technology, enabling precise control of the fiber diameter and quality to ensure that the fiber performance meets requirements.

[0035] The weaving system uses a weaving machine to weave biodegradable fiber filaments obtained from the spinning system into biodegradable fabric. The weaving machine has multiple weaving modes, which can weave fabrics with different textures and structures according to different design requirements, increasing the aesthetics and practicality of the shirt.

[0036] The cutting system cuts the biodegradable fabric obtained from the weaving system into a suitable shape based on the shirt's design pattern. The cutting system uses high-precision cutting equipment, enabling accurate cutting according to preset dimensions and reducing fabric waste.

[0037] The sewing system seals the fabric components obtained from the cutting system using stitching or heat pressing to create a biodegradable shirt. Equipped with advanced sewing equipment, the system ensures high-quality and efficient sewing, resulting in strong, smooth seams.

[0038] Example 2: This example provides a more detailed description of the raw material ratios and preparation process of Example 1.

[0039] Biodegradable fiber raw material ratio: 20% PBAT thermoplastic biodegradable plastic, 20% PGA, 15% polybutylene terephthalate-adipate, 10% graphene-modified epoxy resin, 7% silver nanoparticle powder, 5% silica, 10% corn starch, 8% polyethylene copolymer, 3% polyester plasticizer, 1% colorant, and 1% antioxidant.

[0040] Preparation process: Weigh each ingredient according to the above weight ratio, put them into a mixing machine, and mix for 30 minutes at a stirring speed of 1000 revolutions per minute to form a uniform mixture.

[0041] The mixture is added to the refining machine and refined according to the following steps: Stage 1: 25℃-45℃, heating rate of 2℃ per minute; Stage 2: 45℃-60℃, heating rate of 1.5℃ per minute; Stage 3: 60℃-120℃, heating rate of 2℃ per minute. At the critical temperatures of 45℃ and 60℃, heating is stopped for 10 minutes and 15 minutes respectively. When the temperature reaches 80℃, heating is stopped and refining continues for 20 minutes.

[0042] The refined raw materials are fed into a granulation machine. The water cooling device connected to the outlet of the granulation machine maintains the water temperature in the cold water tank at 15°C to cool the produced plastic granules, thus obtaining biodegradable plastic granules.

[0043] Biodegradable plastic granules are added to a spinning machine, the temperature of which is controlled at 220°C, for spinning. After cooling, stretching, and setting, biodegradable fiber filaments are obtained.

[0044] Biodegradable fiber filaments are woven into fabric using a braiding machine with a plain weave pattern.

[0045] Based on the shirt pattern, the fabric is cut into suitable parts. The parts are then sewn together to create a biodegradable shirt.

[0046] Example 3: This example provides a more detailed description of the raw material ratios and preparation process of Example 1.

[0047] Biodegradable fiber raw material ratio: 25% PBAT thermoplastic biodegradable plastic, 20% PGA, 10% polybutylene terephthalate-adipate, 15% graphene-modified epoxy resin, 5% silver nanoparticle powder, 5% silica, 10% corn starch, 5% polyethylene copolymer, 3% polyester plasticizer, 1% colorant, and 1% antioxidant.

[0048] Preparation process: Weigh the raw materials and put them into a mixer. Mix them for 25 minutes at a stirring speed of 1200 revolutions per minute.

[0049] The refining machine heating process is as follows: Stage 1: 25℃-45℃, heating rate 2.5℃ / minute; Stage 2: 45℃-60℃, heating rate 2℃ / minute; Stage 3: 60℃-120℃, heating rate 2.5℃ / minute. The heating stop time at the critical temperature is the same as in Example 1.

[0050] During granulation, the water temperature in the cooling tank of the water-cooling device is maintained at 18°C. The spinning machine temperature is controlled at 230°C. The weaving machine uses a twill weave pattern. The cutting and sewing processes are similar to those in Example 1.

[0051] Example 4: This example provides a more detailed description of the raw material ratios and preparation process of Example 1.

[0052] Biodegradable fiber raw material ratio: 25% PBAT thermoplastic biodegradable plastic, 15% PGA, 15% polybutylene terephthalate-adipate, 10% graphene-modified epoxy resin, 5% silver nanoparticle powder, 3% silica, 7% corn starch, 10% polyethylene copolymer, 5% polyester plasticizer, 3% colorant, and 2% antioxidant.

[0053] Preparation process: The mixing machine is set to a stirring speed of 800 revolutions per minute and the mixing time is 35 minutes.

[0054] The heating rate and the time to stop heating at the critical temperature of the refining machine can be finely adjusted according to the actual situation.

[0055] The water temperature in the cold water tank is maintained at 12℃ during granulation. The spinning machine temperature is controlled at 210℃. The weaving machine uses a satin weave pattern. The subsequent cutting and sewing processes are the same as in the previous two embodiments.

[0056] Example 5: This example provides a more detailed description of the cutting system in Example 1, which facilitates the unloading of the formed fabric after cutting multiple stacked fabrics.

[0057] like Figure 1-3 As shown, the cutting system includes a cutting assembly 3 and a receiving assembly 1 distributed vertically, as well as two sets of supporting assemblies 2 distributed on the left and right sides of the cutting assembly 3. When cutting fabric using this device, the stacked fabric is laid on the supporting assemblies 2. With the supporting assemblies 2 in operation, the fabric is controlled to move and pass through the cutting assembly 3. When the fabric moves to the bottom of the cutting assembly 3, the cutting assembly 3 operates to cut the fabric. After cutting, the state of the cutting assembly 3 changes, allowing the formed fabric to pass through the bottom of the cutting assembly 3 and fall onto the receiving assembly 1. The receiving assembly 1 then transports the formed fabric away from the cutting assembly 3. After the formed fabric detaches from the cutting assembly 3, and the cutting assembly 3 returns to its original state, the supporting assemblies 2 transport the fabric relative to the cutting assembly 3, facilitating the cutting assembly 3 to perform cutting on other parts of the fabric.

[0058] If you want to cut the rolled fabric, you can set up a winding device on one side of the two sets of material support components 2 that are far apart from each other. The number of winding components is determined according to the number of sheets of fabric stacked. The rolled fabric is installed on the winding device on one side, and the fabric processed by the cutting component 3 is wound up on the winding device on the other side. By cooperating with the winding device and the cutting system, continuous cutting of the fabric can be achieved.

[0059] like Figure 4 As shown, to enable fabric movement, the fabric support assembly 2 includes a support 21, a fabric support and conveying mechanism 22 disposed on top of the support 21, and a limiting mechanism 23 mounted above the support 21. The limiting mechanism 23 is a U-shaped structure with its opening facing downwards, and its bottom is connected to the support 21. Simultaneously, the limiting mechanism 23 contacts the fabric laid on the fabric support and conveying mechanism 22. With the cooperation of the limiting mechanism 23 and the fabric support and conveying mechanism 22, the fabric can be stably positioned relative to the support 21. When the fabric support and conveying mechanism 22 is operating, the fabric can be controlled to move along a predetermined direction and pass through the cutting assembly 3, facilitating the cutting process of the fabric by the cutting assembly 3.

[0060] like Figure 5As shown, specifically, the support frame 21 includes multiple splicing pipes 212 and multiple splicing blocks 213. With the splicing blocks 213 connected, the multiple splicing pipes 212 are spliced ​​to form a rectangular frame structure. Multiple support plates 214 are evenly distributed along the length of the rectangular frame above its two opposite sides, and multiple support legs 211 are provided below the rectangular frame. The tops of the support legs 211 are fixedly installed on the sleeve frame 215 and bolted to the splicing pipes 212, thereby stably supporting the rectangular frame.

[0061] like Figure 7 As shown, the supporting conveyor mechanism 22 includes an annular belt 221 and multiple parallel supporting rollers 222 that pass through the annular belt 221. The ends of the supporting rollers 222 that protrude from the annular belt 221 are connected to the support plate 214 via a second bearing seat, and adjacent supporting rollers 222 are connected by chains and sprockets. A motor mounted on the support plate 214 controls the rotation of one of the supporting rollers 222. With the cooperation of the supporting rollers 222, the annular belt 221 is stably supported above the bracket 21 and supports the fabric. Furthermore, the rotation of the annular belt 221 can be controlled by the motor to achieve fabric conveying. The supporting conveyor mechanism 22 can also be equipped with a tensioning device, similar to a belt conveyor, consisting of a tensioning roller, counterweight, or screw, etc., to maintain appropriate tension on the conveyor belt, prevent slippage during operation, and ensure conveying efficiency and safety. The structure of the receiving assembly 1 is the same as that of the supporting conveyor mechanism 22, only the dimensions differ. In this embodiment, the receiving component 1 is vertically positioned to support the conveying mechanism 22 and is positioned parallel to the bottom of the cutting component 3.

[0062] like Figure 7 , Figure 8 As shown, in order to balance the fabric support, a support device 223 is provided between adjacent support rollers 222. The support device 223 includes a support plate 2231 and a support frame 2233 disposed below the support plate 2231. The bottom of the support frame 2233 is mounted on a bracket 21. The top surface of the support plate 2231 contacts the annular belt 221, and the support rollers 222 are positioned near the arc-shaped groove 2232 of the support plate 2231. When the support frame 2233 stably controls the installation of the support plate 2231, the support plate 2231 can fill the gap between adjacent support rollers 222, and a relatively flat support surface is formed with the cooperation of the support plate 2231 and the support rollers 222, thereby ensuring the stable installation of the annular belt 221.

[0063] like Figure 6As shown, in order to restrict the fabric to be placed stably relative to the annular belt 221, the restricting mechanism 23 includes a pressure roller 231, a lifting block 232 connected to the end of the pressure roller 231 via a first bearing seat 233, and a fixing plate 236 located below the lifting block 232 and fixedly connected to the bracket 21. A vertical rod 234 mounted on the fixing plate 236 passes through the lifting block 232, and an adjusting screw 235 threaded through the lifting block 232 passes through the bottom of the fixing plate 236 via a bearing. The lifting block 232 can be raised or lowered by rotating the adjusting screw 235, thereby adjusting the height of the pressure roller 231, and restricting the position of the fabric with the cooperation of the annular belt 221 and the pressure roller 231.

[0064] Alternatively, a first sprocket 237 can be installed at the bottom of the adjusting screw 235. The two first sprockets 237 are connected by a chain, which can drive the other adjusting screw 235 to rotate when one adjusting screw 235 rotates.

[0065] like Figure 9 As shown, to complete the fabric cutting process, the cutting assembly 3 includes a base frame 34 connected to the support 21, a material dropping mechanism 33 hinged to the top of the base frame 34, a drive mechanism 31 mounted above the base frame 34, and a cutting die 32 located above the material dropping mechanism 33 and mounted on the drive mechanism 31. When the fabric moves to the upper arc of the material dropping mechanism 33, the drive mechanism 31 controls the cutting die 32 to descend, cutting the fabric into the corresponding shape. After cutting, the state of the material dropping mechanism 33 changes, and under the action of the cutting die 32, the shaped fabric falls through the bottom of the material dropping mechanism 33 onto the receiving assembly 1. Then, the material dropping mechanism 33 returns to its original state, and the conveying mechanism 22 controls the fabric to move, and the cutting die 32 completes the cutting process again. An industrial camera can also be equipped on the cutting assembly 3 according to actual needs, so that the industrial camera can acquire information about the fabric in real time and control the operation of the cutting assembly 3.

[0066] like Figure 10 As shown, in order to stably install the material feeding mechanism 33 between the two sets of material support components 2, the base frame 34 includes an upper frame 341 and a lower frame 342 distributed vertically. The lower frame 342 is connected to the bracket 21, and a connecting plate 343 is fixedly provided on the side of the lower frame 342.

[0067] like Figure 11As shown, the feeding mechanism 33 includes two symmetrically arranged flip plates 334 and a second telescopic cylinder 333 hinged below each flip plate 334. The two flip plates 334 are located inside the upper frame 341. The edges of the support frame 332 located below the two flip plates 334 are connected to the upper frame 341 via hinges 331. The bottom of the second telescopic cylinder 333 is hinged to the connecting plate 343. Therefore, when the length of the second telescopic cylinder 333 changes, the flip plates 334 can be controlled to rotate around the central axis of the hinge 331. When the upper sides of the two flip plates 334 are on the same plane, the fabric can be supported and, in cooperation with the cutting mold 32, the cutting of multiple stacked fabrics can be completed. When the two flip plates 334 are in an inclined state, the base frame 34 is unobstructed, and the formed fabric falls onto the receiving assembly 1 under the cooperation of gravity and the cutting mold 32.

[0068] like Figure 12 As shown, to achieve fabric cutting, the drive mechanism 31 includes two parallel guide rails 313 and two vertical frames 311 respectively disposed at both ends of the guide rails 313. The bottom of the vertical frame 311 is connected to the base frame 34, and a triangular sleeve 314 slidably fitted on the vertical frame 311 is fitted onto the guide rails 313. Simultaneously, the telescopic end of the first telescopic cylinder 312, which is inverted and installed on the top of the vertical frame 311, is connected to the triangular sleeve 314. Under the action of the triangular sleeve 314, the guide rails 313 and the vertical frames 311 are stably and movably connected. Then, the raising and lowering of the guide rails 313 can be controlled by changing the length of the first telescopic cylinder 312. Pressure sensors or displacement sensors can be equipped on the telescopic cylinder as needed.

[0069] like Figure 13 , Figure 14 As shown, the cutting mold 32 includes a stamping device 321 and a pressure plate 322 located inside the stamping device 321. The shape of the stamping device 321 is adapted to the shape of the shirt, and a cutting blade 323 is provided at the bottom of the stamping device 321. At the same time, a connecting pipe 325 is installed on the plate 324 at the top of the stamping device 321. The connecting pipe 325 is bolted to the guide rail 313, so that the stamping device 321 is stably installed relative to the guide rail 313. Thus, when the guide rail 313 is raised or lowered, the stamping device 321 can be raised or lowered to complete the fabric cutting process.

[0070] like Figure 15As shown, a guide rod 327 installed above the pressure plate 322 passes through the ferrule 324, and a spring 326, which is sleeved on the guide rod 327 and is in a compressed state, contacts the ferrule 324 and the pressure plate 322 at both ends. Under the action of the spring 326, the pressure plate 322 always has a downward tendency. During the process of the stamping device 321 descending relative to the fabric to complete its cutting, the pressure plate 322 is always in contact with the fabric. When the cutting is completed and the flipping plate 334 rotates to an inclined state, the pressure plate 322 presses the fabric down through the base frame 34 and onto the receiving assembly 1.

[0071] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0072] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A biodegradable shirt, characterized in that, The shirt fabric is woven from biodegradable fiber filaments, which include the following raw materials in parts by weight: 20-25% PBAT thermoplastic biodegradable plastic, 15-20% PGA, 10-15% polybutylene terephthalate-adipate, 10-15% graphene-modified epoxy resin, 5-10% silver nanoparticle powder, 3-8% silica, 5-10% corn starch, 5-10% polyethylene copolymer, 3-5% polyester plasticizer, 1-3% colorant, and 1-3% antioxidant; wherein the polyester plasticizer is obtained by copolymerization of diacid, diol and triol.

2. The biodegradable shirt according to claim 1, characterized in that, The shirt is designed with a detachable structure, including a body for covering the chest and back of the body and sleeves for covering the arms. The body consists of a detachable inner layer and an outer layer. When worn, the inner layer is close to the torso, and the outer layer is placed on the surface of the inner layer. The outer layer is made of a biodegradable material.

3. A biodegradable shirt manufacturing apparatus, suitable for the shirt as described in claim 1, characterized in that, It includes a mixing system, a refining system, a granulation system, a spinning system, a weaving system, a cutting system, and a sewing system; The mixing system is used to mix shirt raw materials in proportions by weight to form a mixture; The refining system is used to refine the mixture, and the refining process is divided into three stages, each with its own temperature range and critical temperature stopping time. The granulation system is used to produce biodegradable plastic granules from the refined raw materials, and to cool the plastic granules using a cooling device. The spinning system is used to spin biodegradable plastic particles and perform cooling, drawing and shaping processes to obtain biodegradable fiber filaments; The weaving system is used to weave biodegradable fiber filaments into biodegradable fabric; The cutting system is used to cut biodegradable fabrics into corresponding shapes; The sewing system uses stitching or heat pressing to seal and connect the cut fabric components to create a biodegradable shirt.

4. The biodegradable shirt manufacturing apparatus according to claim 3, characterized in that, The cutting system includes a cutting component (3) and a receiving component (1) distributed vertically, as well as two sets of supporting components (2) distributed on the left and right sides of the cutting component (3); the fabric is laid on the supporting component (2) and passes through the cutting component (3), while the supporting component (2) conveys the fabric to move relative to the cutting component (3); the cut fabric falls from the cutting component (3) onto the receiving component (1), and the receiving component (1) conveys the cut fabric away from the cutting component (3).

5. The biodegradable shirt manufacturing apparatus according to claim 4, characterized in that, The material support assembly (2) includes a support (21), a support and conveying mechanism (22) disposed on the top of the support (21), and a limiting mechanism (23) installed above the support (21). The limiting mechanism (23) is configured as a U-shaped structure with the opening facing downward, and the bottom of the limiting mechanism (23) is connected to the support (21). At the same time, the limiting mechanism (23) is in contact with the fabric laid on the support and conveying mechanism (22).

6. The biodegradable shirt manufacturing apparatus according to claim 5, characterized in that, The conveying mechanism (22) includes an annular belt (221) and multiple parallel conveying rollers (222) that pass through the annular belt (221). The ends of the conveying rollers (222) protruding from the annular belt (221) are connected to the support plate (214) of the bracket (21) via a second bearing seat, and adjacent conveying rollers (222) are connected by chains and sprockets. At the same time, a motor mounted on the support plate (214) controls the rotation of a certain conveying roller (222). A support device (223) is provided between the support rollers (222). The support device (223) includes a support plate (2231) and a support frame (2233) provided below the support plate (2231). The bottom of the support frame (2233) is mounted on the bracket (21). The top surface of the support plate (2231) is in contact with the annular belt (221), and the support rollers (222) are arranged near the arc groove (2232) of the support plate (2231).

7. The biodegradable shirt manufacturing apparatus according to claim 5, characterized in that, The limiting mechanism (23) includes a pressure roller (231), a lifting block (232) connected to the end of the pressure roller (231) via a first bearing seat (233), and a fixing plate (236) located below the lifting block (232) and fixedly connected to the bracket (21). A vertical rod (234) mounted on the fixing plate (236) passes through the lifting block (232), and the bottom of an adjusting screw (235) threaded through the lifting block (232) passes through the fixing plate (236) via a bearing. At the same time, the first sprockets (237) at the ends of the two adjusting screws (235) are connected by a chain.

8. The biodegradable shirt manufacturing apparatus according to claim 4, characterized in that, The cutting assembly (3) includes a base frame (34) connected to the support (21), a material dropping mechanism (33) hinged to the top of the base frame (34), a drive mechanism (31) mounted above the base frame (34), and a cutting mold (32) located above the material dropping mechanism (33) and mounted on the drive mechanism (31). The drive mechanism (31) controls the cutting mold (32) to descend and cut the fabric. The shaped fabric falls onto the receiving assembly (1) after the state of the material dropping mechanism (33) is adjusted.

9. The biodegradable shirt manufacturing apparatus according to claim 8, characterized in that, The base frame (34) includes an upper frame (341) and a lower frame (342) distributed vertically. The lower frame (342) is connected to the support (21), and a connecting plate (343) is fixedly provided on the side of the lower frame (342). The material unloading mechanism (33) includes two flip plates (334) symmetrically arranged inside the upper frame (341) and a second telescopic cylinder (333) hinged below each flip plate (334). The bottom of the second telescopic cylinder (333) is hinged to the connecting plate (343). The edges of the support frame (332) located below the two flip plates (334) are connected to the upper frame (341) through hinges (331).

10. The biodegradable shirt manufacturing apparatus according to claim 8, characterized in that, The drive mechanism (31) includes two parallel guide rails (313) and two vertical frames (311) respectively disposed at both ends of the guide rails (313). The bottom of the vertical frame (311) is connected to the base frame (34), and a triangular sleeve (314) slidably sleeved on the vertical frame (311) is fitted onto the guide rails (313). At the same time, the telescopic end of the first telescopic cylinder (312) installed upside down on the top of the vertical frame (311) is connected to the triangular sleeve (314). The cutting mold (32) includes a stamping device (321) and a part located on the stamping device. (321) Inner pressure plate (322); the bottom of the stamping device (321) is provided with a cutting blade (323), and a connecting tube (325) is installed on the top plate (324) of the stamping device (321), the connecting tube (325) is sleeved on the guide rail (313); the guide rod (327) installed above the pressure plate (322) passes through the plate (324), and the spring (326) sleeved on the guide rod (327) in a compressed state has its two ends in contact with the plate (324) and the pressure plate (322) respectively.

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