The process involves breaking down cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

Abstract

This invention provides a process for increasing the recycling rate of cocoa shells by breaking down cocoa shells into sugar chains and grafting them onto polymers. [Solution] Anaerobic and thermophilic lignin-degrading bacteria and cocoa husk powder are prepared. The cocoa husk powder is added to a culture medium containing the anaerobic and thermophilic lignin-degrading bacteria to produce an aqueous solution of degraded cocoa husks. A sugar solution is obtained from the aqueous solution of degraded cocoa husks, and it is melted at high temperature with sorbitol and citric acid and polymerized to produce a sugar chain powder. The sugar chain powder, N-isopropylacrylamide, and an initiator are placed in a reaction vessel containing ethanol to produce N-isopropylacrylamide powder with grafted sugar chains. Finally, in the step of blending with a polymer, the N-isopropylacrylamide powder with grafted sugar chains and the polymer are covalently bonded. A plastic masterbatch can be manufactured and used to weave cloth with yarn.

Description

Technical Field

[0001] The present invention relates to a process of decomposing cacao husks into sugar chains, grafting them onto polymers, and processing them into spun yarns. In particular, the cacao husks, which are agricultural waste generated during the chocolate manufacturing process, are decomposed to form monosaccharides or polysaccharides, further polymerized to generate sugar chains, and processed into spun yarns through grafting technology and covalent bonding of polymers, thereby significantly increasing the recycling rate of cacao husks, which are agricultural waste. The present invention relates to a process of decomposing cacao husks into sugar chains, grafting them onto polymers, and processing them into spun yarns.

Background Art

[0002] Cacao beans are tropical evergreen trees and are mainly cultivated in tropical regions located between the Tropic of Capricorn and the Tropic of Cancer. The husks remaining after processing cacao to remove the pulp and seeds (cacao beans) account for 80% of the entire fruit. That is, a large amount of waste needs to be processed, and waste treatment is not only a difficult problem for enterprises engaged in agriculture but also requires bearing high treatment costs.

[0003] Currently, for the treatment of agricultural waste such as fruit husks, methods such as landfill or incineration are adopted, but both cause land and air pollution and increase the waste removal costs for enterprises engaged in agriculture. Therefore, the technology of developing related products with added value using cacao husks is currently the best method for treating cacao husks, which are waste.

[0004] Therefore, technologies for decomposing lignocellulose by biodegradation of cacao husks discarded after removing the pulp and seeds of cacao, further polymerizing them after decomposition to generate sugar chains, and further covalently bonding them with polymers to produce spun yarns have been researched and developed. By this technology, the recycling rate of cacao husks, which are agricultural waste, is significantly increased, and by developing marine biodegradable plastics that can be surely decomposed even when immersed in seawater, preventing pollution of the marine ecosystem is the problem that the present invention aims to solve.

Summary of the Invention

[0005] The present invention aims to provide a process for decomposing cocoa shells into sugar chains and grafting them onto polymers, comprising the steps of: 1) preparing anaerobic and thermophilic lignin-degrading bacteria; 2) preparing cocoa shell powder by grinding cocoa shells into powder; 3) preparing an aqueous solution of decomposed cocoa shells; and 4) polymerizing the aqueous solution of decomposed cocoa shells to generate sugar chains while simultaneously performing a grafting treatment.

[0006] The present invention further aims to provide a process for processing cocoa shells into glycans, grafting them onto polymers, and then processing them into spun yarn by performing step 5, which involves extracting the yarn, after steps 1 to 4. [Means for solving the problem]

[0007] To achieve the main objectives mentioned above, the process of decomposing cocoa husks into sugar chains and grafting them onto polymers consists of three steps: Step 1, preparing anaerobic and thermophilic lignin-degrading bacteria; Step 2, preparing cocoa husk powder by grinding the cocoa husks into a powder; Step 3, preparing a cocoa husk decomposition aqueous solution; and Step 4, polymerizing the cocoa husk decomposition aqueous solution to generate sugar chains while simultaneously performing the grafting process. In Step 3, the cocoa husk powder is added to a culture medium containing anaerobic and thermophilic lignin-degrading bacteria. The pH of the culture medium is set to 4-8. After a predetermined time, the cocoa husk powder is decomposed by the anaerobic and thermophilic lignin-degrading bacteria, and a cocoa husk decomposition aqueous solution is produced. In Step 4, the cocoa husk decomposition aqueous solution is centrifuged to produce a sugar solution, and the sugar content of the sugar solution is set to 70-80%. Furthermore, sorbitol and citric acid are added, and the mixture is melted at high temperature and polymerized to obtain sugar chain powder. The glycan powder and N-isopropylacrylamide (NIPAAm) are placed in a reaction vessel containing ethanol, and then an initiator (e.g., benzoyl peroxide) is added to carry out the predetermined reaction steps. After the reaction steps are completed, the mixture is further dried to produce N-isopropylacrylamide (NIPAAm) powder with grafted glycans. Finally, the N-isopropylacrylamide (NIPAAm) powder with grafted glycans is blended with a polymer to covalently bond the glycan-grafted N-isopropylacrylamide (NIPAAm) powder and the polymer.

[0008] Thus, the process described above for decomposing cocoa shells into sugar chains and grafting them onto polymers reuses cocoa shells, which are agricultural waste generated during the chocolate manufacturing process. It primarily utilizes anaerobic and thermophilic lignin-degrading bacteria to decompose the cocoa shells, generating monosaccharides or polysaccharides. Furthermore, sorbitol and citric acid are added, and the mixture is melted at high temperature and polymerized to produce sugar chains. Finally, N-isopropylacrylamide (NIPAAm) is added, and grafting technology is used to covalently bond the polymer to the sugar chains, completing the process of decomposing cocoa shells into sugar chains and grafting them onto polymers according to the present invention. This allows for the production of a plastic masterbatch containing a polymer (e.g., polypropylene PP) blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains. This significantly increases the reuse rate of cocoa shells, which are agricultural waste. At the same time, the polymer or plastic masterbatch produced by the present invention is reliably biodegradable even when immersed in seawater, thus preventing pollution of marine ecosystems and the environment.

[0009] The process of breaking down cocoa shells into sugar chains, grafting them onto polymers, and processing them into spun yarn involves performing a yarn extraction step (step 5) after steps 1 to 4 of the process of breaking down cocoa shells into sugar chains and grafting them onto polymers. By extracting yarn from a plastic masterbatch comprising a polymer (e.g., polypropylene (PP), polyester (PET), nylon 6 (PA6)) blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains, spun yarn comprising a polymer blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains can be produced. Subsequently, by weaving cloth with the spun yarn, the reuse rate of cocoa shells, which are agricultural waste, can be greatly increased. At the same time, the spun yarn or cloth produced by the present invention will decompose reliably even when immersed in seawater, thus preventing pollution of marine ecosystems and the environment. [Brief explanation of the drawing]

[0010] [Figure 1] This is the molecular formula of the sugar chain obtained by decomposing the cocoa shell into sugar chains in this invention. [Figure 2] This figure shows the molecular structure of N-isopropylacrylamide, which is a grafting agent in the present invention. [Figure 3] This figure shows the molecular structure of dibenzoyl peroxide, an organic compound used in the present invention. [Figure 4] This figure shows the molecular structure of N-isopropylacrylamide (NIPAAm) and its sugar chain in the present invention. [Figure 5] This figure shows the molecular structure of N-isopropylacrylamide (NIPAAm) and the glycan graft in the present invention. [Figure 6] This figure shows a graft structure in which N-isopropylacrylamide (NIPAAm) powder with grafted sugar chains and polypropylene (PP) powder are covalently bonded together, according to the present invention. [Figure 7] This is a test result demonstrating that the fabric blended with sugar chains and polyester PET in this invention is biodegradable in seawater (Marine Biodegradability ASTMD6691). [Figure 8] This test (Marine Biodegradability ASTMD6691) shows that the fabric blended with sugar chains and nylon PA6 in this invention is biodegradable in seawater. [Figure 9] This is a flowchart of the process in which cocoa shells are broken down into sugar chains and grafted onto polymers according to the present invention. [Figure 10] This is a flowchart of the process in which cocoa shells are broken down into sugar chains, grafted onto polymers, and then processed into spun yarn according to the present invention. [Modes for carrying out the invention]

[0011] Refer to Figures 1 to 10 simultaneously. As shown in Figures 1 to 10, the present invention discloses a process for decomposing cocoa shells into sugar chains, grafting them onto polymers, and processing them into spun yarn. First, as shown in Figure 9, the process of decomposing the cocoa shells into sugar chains and grafting them onto polymers consists of steps 1 to 4.

[0012] In the first step described above, anaerobic and thermophilic lignin-degrading bacteria are prepared. Anaerobic and thermophilic lignin-degrading bacteria are selected, and the strain is cultured anaerobically. For example, during the anaerobic culture process, the anaerobic environment of the culture medium can be maintained by adding sodium sulfide (Na2S), which is a reducing agent. Furthermore, the culture medium prepared under normal conditions is heated and boiled for 5 to 15 minutes, and at the same time, nitrogen (N2) is supplied using a gas station to remove dissolved oxygen from the medium. Next, a mixture of nitrogen (N2) and carbon dioxide (CO2) gas is supplied to the culture medium, and nitrogen is aspirated several times for aeration. Then, anaerobic and thermophilic lignin-degrading bacteria are added to the culture medium to maintain optimal conditions for anaerobic culture. In the anaerobic culture process described above, glucose is used as the carbon source, the temperature is set to approximately 40 to 70 degrees Celsius, and the pH is set to 5 to 8.

[0013] In step 2, a powder made from pulverized cocoa husks is prepared. First, the moisture content of the cocoa husks is reduced to 15% or less, and then the cocoa husks are dried. The set temperature during the drying process is 120 degrees Celsius, and the drying time is set to 10 to 24 hours, which reduces the moisture content of the cocoa husks to 0.5% or less. Subsequently, the cocoa husks are crushed in stages in multiple stages to a mesh size of 8000 or more, thereby producing the aforementioned cocoa husk powder, and the particle size of the cocoa husk powder can be reduced to approximately 1 micrometer or even finer.

[0014] In step 3, a cocoa husk decomposition aqueous solution is prepared. The cocoa husk powder is added to a culture medium containing anaerobic and thermophilic lignin-degrading bacteria. During this process, the pH of the culture medium is set to 4-8. After a predetermined time (for example, 5-8 days), the cocoa husk powder is decomposed by the anaerobic and thermophilic lignin-degrading bacteria, and a cocoa husk decomposition aqueous solution is produced.

[0015] In step 3 described above, the weight ratio of cocoa shell powder to decomposition bacteria culture solution is 1:5 to 1:10.

[0016] In the said Procedure 4, while polymerizing the decomposed aqueous solution of cocoa shell to generate sugar chains, grafting treatment is performed. The decomposed aqueous solution of cocoa shell is centrifuged to generate a sugar solution, and the sugar content of the sugar solution is set to 70% - 80%. Furthermore, 5% - 20% of sorbitol and 0.5% - 10% of citric acid are added, and it is melted at high temperature and polymerized to obtain sugar chain powder. The sugar chain molecular formula of the sugar chain powder is as shown in Figure 1. The sugar chain powder and N-isopropylacrylamide (NIPAAm) are put into a reaction vessel containing ethanol, and N-isopropylacrylamide (NIPAAm) is used as the grafting agent. The molecular structure in which the said N-isopropylacrylamide (NIPAAm) and the sugar chain are joined is as shown in Figure 4. The molecular formula of N-isopropylacrylamide (NIPAAm) is as shown in Figure 2. Furthermore, an initiator is added and a predetermined reaction process is executed. After the said reaction process is completed, it is further dried to generate N-isopropylacrylamide (NIPAAm) powder grafted with sugar chains. The structural formula of the reaction of N-isopropylacrylamide (NIPAAm) grafted with sugar chains is as shown in Figure 5. Finally, by blending the N-isopropylacrylamide (NIPAAm) powder grafted with sugar chains and a polymer, the N-isopropylacrylamide (NIPAAm) powder grafted with sugar chains is covalently bonded to the polymer. Thereby, the N-isopropylacrylamide (NIPAAm) grafted with sugar chains and the polymer are blended. Figure 6 is a diagram showing the graft structure in which the N-isopropylacrylamide (NIPAAm) powder grafted with sugar chains and a polymer (for example, polypropylene (PP)) powder are covalently bonded.

[0017] In the said Procedure 4, in the process of centrifugation, the decomposed aqueous solution of cocoa shell is centrifuged at a high speed of 8000 - 10000 RPM to generate the decomposed sugar solution.

[0018] In the said Procedure 4, the set conditions for high-temperature melting are that the temperature is 110 degrees - 130 degrees and the atmospheric pressure is 0.01 - 0.1, and sugar chain powder is generated by polymerizing under these conditions.

[0019] In the said procedure 4, the concentration of N-isopropylacrylamide (NIPAAm), which is a grafting agent, in ethanol is 0.1 - 0.8 M.

[0020] In the said procedure 4, the initiator is dibenzoyl peroxide, also known as benzoyl peroxide, and is an organic compound commonly called initiator (BPO). The molecular structural formula of dibenzoyl peroxide is as shown in Figure 3. The concentration of the initiator in ethanol is 1 - 8×10 -3 M.

[0021] In the said procedure 4, nitrogen is continuously fed during the reaction process. The reaction time is set to 1 - 8 hours, and the reaction temperature is controlled at 70 - 90 degrees.

[0022] In the said procedure 4, the polymer can be plastic, for example, polymers of other plastics such as PET (polyethylene terephthalate), PA6 (polyamide (nylon)), PP (polypropylene), PE (polyethylene), ABS (acrylonitrile - butadiene - styrene copolymer), PC (polycarbonate), PVDF (polyvinylidene fluoride), PS (polystyrene), PES (polyether sulfone), PVC (polyvinyl chloride), PAN (polyacrylonitrile), PA6 (nylon 6), etc.

[0023] In step 4, the blending step involves mixing the N-isopropylacrylamide (NIPAAm) powder with grafted sugar chains and the polymer using a predetermined plastic masterbatch manufacturing facility, and graft bonding is performed. This completes the process of breaking down the cocoa shell into sugar chains and grafting them onto the polymer according to the present invention, thereby producing a plastic masterbatch comprising the blended polymer with the N-isopropylacrylamide (NIPAAm) with grafted sugar chains. The plastic masterbatch manufacturing facility is equipped with a twin-screw extruder, and the inside of the twin-screw extruder is under vacuum. For example, the N-isopropylacrylamide (NIPAAm) powder with grafted sugar chains and the polypropylene (PP) polymer powder are introduced into the twin-screw extruder and stirred at high speed at a rotational speed of 1000 to 2000 RPM. The weight ratio of the N-isopropylacrylamide (NIPAAm) powder with grafted sugar chains to the polypropylene (PP) powder is 1:5 to 1:10. Subsequently, using plastic masterbatch manufacturing equipment, the grafted N-isopropylacrylamide (NIPAAm) powder and polypropylene (PP) powder are processed into a polymer molten form. Being in a molten form allows the grafted N-isopropylacrylamide (NIPAAm) powder to be mixed with the polypropylene (PP) powder (i.e., the polymer) and grafted. The resulting graft structure is shown in Figure 6. Finally, a plastic masterbatch is produced containing the polymer blended with the grafted N-isopropylacrylamide (NIPAAm). The amount of grafting agent (i.e., N-isopropylacrylamide (NIPAAm)) added is 0.1-1% relative to the weight percentage concentration of the polymer.

[0024] Therefore, the main technical features of the process described above for decomposing cocoa shells into sugar chains and grafting them onto polymers are as follows: Cocoa shells, which are agricultural waste generated during the chocolate manufacturing process, are reused and primarily decomposed by anaerobic and thermophilic lignin-degrading bacteria to form monosaccharides or polysaccharides. Furthermore, sorbitol and citric acid are added and polymerized by high-temperature melting to generate sugar chains. Finally, N-isopropylacrylamide (NIPAAm) is added, and the N-isopropylacrylamide (NIPAAm) is covalently bonded to the polymer by grafting technology, thereby completing the process of decomposing cocoa shells into sugar chains and grafting them onto polymers in this invention. This makes it possible to produce a plastic masterbatch (e.g., polypropylene PP) containing a polymer blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains. This significantly improves the recycling rate of cocoa shells, which are agricultural waste, and at the same time, the polymer or masterbatch produced by this invention decomposes reliably even when immersed in seawater, thus preventing pollution of marine ecosystems and the environment.

[0025] The present invention further discloses a process for decomposing cocoa husks into sugar chains, grafting them onto a polymer, and processing them into spun yarn. Refer to Figure 10 simultaneously. As shown in Figure 10, the process consists of the following steps. After steps 1 to 4 of the process for decomposing cocoa husks into sugar chains and grafting them onto a polymer as described above, step 5, the yarn extraction step, is performed. Using a predetermined plastic masterbatch manufacturing facility, a plastic masterbatch comprising a polymer blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains can be manufactured from a polymer blended with N-isopropylacrylamide (NIPAAm), and then the yarn extraction step of the plastic masterbatch can be performed to produce spun yarn comprising a polymer blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains. By weaving cloth with this spun yarn, the recycling rate of cocoa shells, which are agricultural waste, can be significantly increased. At the same time, the spun yarn or cloth produced by this invention will decompose reliably even when immersed in seawater, thus preventing pollution of marine ecosystems and the environment.

[0026] Refer to Figure 7 simultaneously. Figure 7 shows a fabric made from spun yarn containing polyester (PET) blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains, and the results of a marine biodegradation test in seawater. The weight loss of the fabric reached more than 2%, indicating that it decomposes reliably.

[0027] Refer to Figure 8 simultaneously. Figure 8 shows a fabric made from spun nylon PA6 yarn blended with N-isopropylacrylamide (NIPAAm) grafted with sugar chains, and the results of its decomposition in seawater during a marine biodegradation test. The weight loss of the fabric reached more than 2%, indicating that it decomposes reliably.

Claims

1. This process, consisting of steps 1 to 4, involves breaking down cocoa shells into sugar chains and grafting them onto polymers. The aforementioned process, Procedure 1 for preparing anaerobic and thermophilic lignin-degrading bacteria, Step 2 involves preparing a powder made from ground cocoa shells, Step 3 involves preparing a cacao shell decomposition aqueous solution, The process consists of four steps: polymerizing an aqueous solution of decomposed cocoa shells to generate sugar chains, and simultaneously performing a grafting treatment. In step 3 above, The cocoa shell powder is added to a culture medium containing anaerobic and thermophilic lignin-degrading bacteria, and in this process, the pH of the culture medium is set to 4 to 8, and after a predetermined time, the cocoa shell powder is decomposed by the anaerobic and thermophilic lignin-degrading bacteria, and the cocoa shell decomposition aqueous solution is produced. In step 4 above, The aforementioned aqueous solution of decomposed cocoa shells is centrifuged to produce a sugar solution, and the sugar content of the sugar solution is set to 70% to 80%. Furthermore, sorbitol and citric acid are added and the mixture is melted at high temperature and polymerized to produce a sugar chain powder. The sugar chain powder and N-isopropylacrylamide (NIPAAm) are placed in a reaction vessel containing ethanol, and benzoyl peroxide is added as an initiator to react the sugar chain powder and the N-isopropylacrylamide (NIPAAm). After the reaction is completed, the mixture is further dried to produce N-isopropylacrylamide (NIPAAm) powder with grafted sugar chains. Finally, by blending the N-isopropylacrylamide (NIPAAm) powder grafted with the sugar chains with the polymer, the N-isopropylacrylamide (NIPAAm) powder grafted with the sugar chains covalently bonds with the polymer, resulting in a polymer blended with the N-isopropylacrylamide (NIPAAm) grafted with the sugar chains. A process characterized by breaking down cocoa shells into sugar chains and grafting them onto polymers.

2. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers as described in Claim 1, In step 4, the high-temperature melting conditions are a temperature of 110°C to 130°C and a pressure of 0.01 to 0.1 atmospheres, and the sugar chain powder is produced by polymerization under these conditions. A process characterized by breaking down cocoa shells into sugar chains and grafting them onto polymers.

3. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers as described in Claim 1, In step 4, the initiator is dibenzoyl peroxide, and the concentration of the initiator in ethanol is 1 to 8 x 10 -3 M A process characterized by breaking down cocoa shells into sugar chains and grafting them onto polymers.

4. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers as described in Claim 1, In step 4 above, the polymer is one of the following: PET (polyethylene terephthalate), PA6 (polyamide 6 (NYLON 6)), PP (polypropylene), PE (polyethylene), ABS (acrylonitrile-butadiene-styrene copolymer), PC (polycarbonate), PVDF (polyvinylidene fluoride), PS (polystyrene), PES (polyethersulfone), PVC (polyvinyl chloride), and PAN (polyacrylonitrile). A process characterized by breaking down cocoa shells into sugar chains and grafting them onto polymers.

5. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers as described in Claim 1, In step 4, the blending step is performed using a twin-screw extruder. The N-isopropylacrylamide (NIPAAm) powder to which the aforementioned sugar chains are grafted is mixed with the aforementioned polymer and grafted onto it. Using the twin-screw extruder, the N-isopropylacrylamide (NIPAAm) powder grafted with the sugar chains and the polymer are processed into a polymer molten state, and in the molten state, the N-isopropylacrylamide (NIPAAm) powder grafted with the sugar chains is mixed with the polymer to form graft bonds. A process characterized by breaking down cocoa shells into sugar chains and grafting them onto polymers.

6. A process comprising a yarn extraction step, in addition to the process of decomposing cocoa shells into sugar chains and grafting them onto a polymer as described in Claim 1, wherein the process of decomposing cocoa shells into sugar chains and grafting them onto a polymer is processed into spun yarn, The process of breaking down cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn is Using a twin-screw extruder, a plastic masterbatch comprising the polymer blended with N-isopropylacrylamide (NIPAAm) grafted with the sugar chains is produced from the polymer blended with N-isopropylacrylamide (NIPAAm). Furthermore, as a yarn extraction step, yarn is extracted from the plastic masterbatch to produce spun yarn comprising the polymer blended with N-isopropylacrylamide (NIPAAm) grafted with the sugar chains. A process characterized by the decomposition of cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

7. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers to process into spun yarn as described in Claim 6, In step 4, the high-temperature melting conditions are a temperature of 110°C to 130°C and a pressure of 0.01 to 0.1 atmospheres. Under these conditions, polymerization produces the sugar chain powder. A process characterized by the decomposition of cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

8. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers to process into spun yarn as described in Claim 6, In step 4, the initiator is dibenzoyl peroxide, and the concentration of the initiator in ethanol is 1 to 8 x 10 -3 M A process characterized by the decomposition of cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

9. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers to process into spun yarn as described in Claim 6, In step 4 above, the polymer is one of the following: PET (polyethylene terephthalate), PA6 (polyamide 6 (NYLON 6)), PP (polypropylene), PE (polyethylene), ABS (acrylonitrile-butadiene-styrene copolymer), PC (polycarbonate), PVDF (polyvinylidene fluoride), PS (polystyrene), PES (polyethersulfone), PVC (polyvinyl chloride), and PAN (polyacrylonitrile). A process characterized by the decomposition of cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

10. In the process of breaking down cocoa shells into sugar chains and grafting them onto polymers to process into spun yarn as described in Claim 6, In step 4, the blending step involves using a twin-screw extruder to mix the N-isopropylacrylamide (NIPAAm) powder with the grafted sugar chains and the polymer to graft bond them, processing the N-isopropylacrylamide (NIPAAm) powder with the grafted sugar chains and the polymer into a polymer molten state using the twin-screw extruder, and in the molten state, mixing the N-isopropylacrylamide (NIPAAm) powder with the grafted sugar chains and the polymer to graft bond them. A process characterized by the decomposition of cocoa shells into sugar chains, grafting them onto polymers, and then processing them into spun yarn.

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