TR2024015063A2 - MULTI-FUNCTIONAL COMPACT LAUNDRY COMPOUND SUITABLE FOR WASHING MACHINES AND HAND WASHING - Google Patents

Abstract

The compound in question is a compact laundry compound designed to be used in washing machines and hand washing that do not require osmosis industrial water purification systems in systems known for not using water and that does not use water, does not create harmful waste to nature, is 100% recyclable since its outer packaging is cardboard, reduces washing machine usage with color retention and provides savings. It is an environmentally friendly, practical and cost-effective laundry compound that combines softener, detergent, odor enhancer and color separator functions.

Description

DESCRIPTION MULTIFUNCTIONAL COMPACT LAUNDRY COMPOUND SUITABLE FOR WASHING MACHINES AND HAND WASHING Technical Field The subject of the invention is a compact laundry compound designed for use in washing machines and hand washing. The subject of the invention relates to an environmentally friendly, practical, and cost-effective laundry compound that combines the functions of a softener, detergent, fragrance booster, and color separator. State of the Art In the state of the art, laundry detergents used in the form of fabric or as a disappearing paper, and laundry cloths with multiple features, have been developed as alternatives to traditional liquid or powder detergents and are today highly preferred products. Cloth-shaped detergents are generally thin pieces of fabric or cloth produced with a special formulation and can be placed in washing machines. These products release their active ingredients when they interact with water, cleaning laundry. Unlike traditional detergents, these products take up less space and are easy to carry. Users don't need to measure the correct amount; simply add a small amount. However, state-of-the-art fabric detergents may not dissolve as quickly and effectively as liquid products in some cases. They may not be effective on certain fabric types or stains, so it's important for users to know which fabrics they're suitable for. They may have a higher initial cost compared to traditional detergents. These products can be used in washing machines and handwashing. However, some fabrics may not be effective enough for certain fabric types or stains. Storage and use of these products can be complex for some users. Because they combine multiple properties, they can be more expensive than traditional detergents. Additionally, the liquid compositions used in the production of these cloths use high amounts of water as a solvent or as a blending additive. However, this water must then be removed, and the fabric must be dried at high temperatures to prevent moisture buildup or deterioration. The excessive water use and the need for drying in this production method have increased production costs and increased environmental damage. The document numbered CN111849664A, which describes a laundry cloth/fabric/paper containing Taxus chinensis, is the document containing Taxus chinensis. The cloth is prepared through specific steps. These include drying mixed raw materials using an oil-heated drying cylinder, performing the film formation process to produce paper laundry detergent, and performing cutting, stamping, packaging, and other steps. Taxus chinensis laundry cloth is mainly prepared from certain raw materials. These include 2-5 parts of purified water, 20 parts of coconut oil fatty acid, 1-2 parts of cocamidopropyl betaine, 1-2 parts of diethanol amine, 3-5 parts of glycerol, 3-5 parts of diaminoethylene tetraacetate, 1-1.5 parts of Taxus chinensis extract, and 0.1-0.3 parts of essence. In the related invention, water is used, and the final product is obtained through drying. A multifunctional washcloth is described that combines the benefits of color-retaining, softening and fragrance-releasing agents. (quaternary N-substituted ammonium)-hydroxy-haloalkyl salt (HHAS), e.g. 2-hydroxy-3-chloropropyltrimethylammonium chloride, epoxy propyl ammonium salt (EPAS), e.g. epoxy propyl trimethylammonium chloride, polyquaternary ammonium compounds, polyamphoterics, quaternized starches, proteins, chitin or chitosan, choline chloride, polyvinyl amine (PVAm), polyethylene imine (PEI) and combinations thereof. The article is "containing detergentformu/ations". A laundry sheet is disclosed having a substrate to which laundry detergent has been applied. The laundry detergent dissolves from the substrate during the wash process, providing a total wash action that cleans and softens. Also disclosed are various laundry detergent formulations preferably applied to the substrate to make the laundry sheet of the present invention, and the process of making the laundry sheet. The laundry detergent comprises at least one surfactant and may optionally include one or more of the following: a structure builder, a complexing agent, an optical brightener, an alkaline source to raise the pH, an electrolyte, a foam stabilizer, a fragrance, a color enhancer, a biocide, a corrosion inhibitor, a soil anti-redeposition agent, an anti-scaling agent, a fabric softener, It may contain enzymes, oxidizing agents, or combinations thereof. As examples are given above, numerous laundry compounds and laundry cloths/fabrics/papers have been produced within the state of the art. However, no documentation has been found that combines ingredients, desired features and advantages, water use, environmental awareness, or energy-saving effects such as skipping a process step. Furthermore, the use of separate detergents, softeners, fragrance enhancers, and color-picking agents in the current technology creates packaging waste, water waste, time waste, and energy waste. We have not encountered any product that does not use water, does not create harmful waste, is 100% recyclable because its outer packaging is cardboard, or provides savings by reducing washing machine use through color retention. All documents in the state of the art refer to osmosis-reducing products used in liquid products due to the use of water. They need an industrial water treatment system. The fact that osmosis treatment systems produce 30-40% wastewater while filtering water in production affects the efficiency of the systems in terms of both wasting water and harming the environment. Therefore, an R&D study in this area has become necessary. Purpose of the Invention The purpose of the invention is to provide a compact laundry compound that acts as a softener, detergent, fragrance enhancer and color separator. The purpose of the invention is to obtain a compact laundry compound that reduces plastic waste by 90%, does not use water in its production and does not create waste harmful to the environment. The purpose of the invention is to provide easy and low-cost packaging since it is not a liquid product as in the technique. The purpose of the invention is; because the content of the compact laundry compound is prepared without water, it is not used in other liquid products. The purpose of the invention is to eliminate the need for color-catching fabrics, thus consuming less energy, time, and detergent to wash more laundry without having to separate colored and white ones. The purpose of the invention is to keep up with changing textile technology and delay the wear and tear of laundry. The purpose of the invention is to reduce plastic use by 99% - in a preferred application of the invention - by using OPP (Oriented Polypropylene) and/or PVA (polyvinyl alcohol) in packaging. The purpose of the invention is to add the raw materials to the product preparation unit, mix the prepared product and turn it into pulp, send the pulped product to the resting unit to rest, transfer it to the liquefaction machine after the resting period to liquefy it, prepare the color-catching fabrics in the form of reels and connect them to the production line. The process of the invention is to obtain the prepared liquid raw material by adding it as a layer on the fabric by means of a coating machine, taking the fabric coated with the raw material to the cold tunnel, cutting the fabric coming out of the tunnel with a vertical slicing machine, cooling the vertically sliced fabrics again in the final cooler, making the fabrics coming out of the cooler ready for horizontal packaging, sending the ready products to the dehumidification chamber, packaging the products coming out of the humidity chamber in single packages, packaging them individually, and transferring the boxed products to the transportation network. The purpose of the invention is to obtain the following products: PEG, EsterQuat (an ammonium salt containing the ester group), Salt, Caustic (Sodium Hydroxide [NaOH]), Powder SLS (Sodium Lauryl Sulfate Powder), KD (Cocoamide DEA-KD, Coconut diethanolamide), MPG (Mono Propylene Glycol), LABSA (Linear Alkyl Benzene), Optical CBS-X (Optical Fluorescent Whitening Agent), Enzyme Corn Starch. Other application examples of the present invention will be apparent to those skilled in the art, considering the features and application of the invention described in this document. The present invention cannot be limited to the examples given herein. Detailed Description of the Invention Compact detergent compound coated on fabric with color separation properties, suitable for use in washing machines and by hand, containing softener and/or detergent and/or odor enhancer and/or stain remover and/or 10-15% by weight and/or 1-5% by weight SLS (CAS No: and/or 5-10% by weight and/or 0.3- It contains 0.6% triple enzyme complex and/or 3-8% essence by weight and/or 0.05-0.5% Optical CBS-X by weight and/or powder food coloring by 0.001-0.004% by weight. It contains the cationic surfactant Esterquat (CAS No: 91995-81-2) as a softening agent. It contains SLS (CAS No: 152-21-3), which is an anionic surfactant as a detergent/cleaning agent and increases the cleaning power by creating foam. It contains the anionic surfactant LABSA (CAS No: 27176-87-0) as a detergent/cleaning agent. It contains a triple enzyme complex that provides a stain-removing effect. Protease (CAS), which is found in the triple enzyme complex and ensures the removal of protein-based stains. No: 9014-01-1). It contains alpha-amylase (CAS No: 9000-90-2), which is found in the triple enzyme complex and provides the removal of food and/or starch-based stains. It contains lipase (CAS No: 9001-62-1), which is found in the triple enzyme complex and provides the removal of oil-based stains. It contains PEG, which enables the product to pass into solid form and provides stability in the formulation. It contains corn starch (CAS No: 68412-29-3), which prevents the product from drying out thanks to its humectant feature. It contains salt (CAS No: 7647-14-5), which is used as a filler and provides viscosity control. It contains MPG (CAS No: 57-55-6), which enables the mixing of liquid-solid substances thanks to its emulsifier feature. It contains KD Comperland (CAS No: 6381-92-6) which increases the consistency of the mixture by being used as a viscosity increaser and provides pH balance and increases the stability of the formula by binding metal ions. The method of obtaining a compact detergent compound coated on the fabric with color separation feature, suitable for use in washing machines and by hand; a. adding the solidifying chemical compound to the mixing drum, b. heating, c. adding the filler and pH adjusting compound to the melted compound, d. mixing, e. adding cationic surfactant to the mixture and mixing, f. adding anionic surfactant to the mixture and mixing, g. adding emulsifier, viscosity increaser, enzyme, cationic and anionic surfactant to the mixture and mixing, h. adding starch to the mixture and mixing, i. adding essence to the mixture and mixing, j. adding powdered food coloring to the mixture and mixing, k. cooling the doughy mixture, l. keeping the mixture in the resting tank. The solidifier chemical compound in step "a" is PEG 4000. The process step of heating the tank to 700C in step "b" is the process step. The filler in step "c" is salt, and the pH adjusting agent is caustic beads. The process step of mixing the mixture for 20 minutes in step "d" is the process step of mixing the mixture for 20 minutes in step "e" is the process step of adding EsterQuat as cationic surfactant and mixing the mixture for 10 minutes. Step "f" includes the process step of adding powdered SLS as anionic surfactant and mixing the mixture for 10 minutes. Step "g" includes the process step of adding MPG as emulsifier, KD Comperland as viscosity increaser, protease, lipase, alpha amylase as enzymes, optical CBS-X and LABSA as cationic and anionic surfactants and mixing for 10 minutes. Step "h" includes the process step of adding corn starch to the mixture and mixing for 30 minutes. Step "h" includes the process step of adding essence to the mixture and mixing for 10 minutes. Step "h" includes the process step of adding powdered food coloring to the mixture and mixing for 10 minutes until homogeneous. The process involves waiting for the fabric to cool until the temperature drops to 500°C. The method of obtaining fabric with a compact detergent compound suitable for use in washing machines and by hand, as well as a cleaner, color protector, stain remover, softener, and odor-enhancing compound; a. connecting the color-catching fabric to the production line in a bobbin, b. coating the fabrics arriving at the production line with a mixture that can be applied, c. cooling the fabric coated with the mixture, d. slicing the cooled fabric vertically, e. cooling again, f. cutting the cooled fabrics suitable for packaging, g. dehumidifying the fabrics in the humidity chamber, h. packaging the fabrics leaving the humidity chamber. The process involves the steps of activating the backup cooling system to prevent the product from solidifying completely in the step. The process step is to cool the fabrics before packaging by lowering the temperature to 00°C again. The compact laundry compound in question consists of both a fabric structure with color-protective properties and a layer with detergent, softener, and odor-eliminating properties. The compact detergent in question, which enables laundry washing with more than one component added by coating on a fabric, can be placed directly into the drum section of the washing machine. The laundry is added into the washing machine and a detergent compound that works even in the shortest and 25°C short programs depending on the color and kilogram (kg) density of the laundry is provided without the need to add any other detergent, softener, odor-enhancing and color-separating active ingredients or detergents. In current technology, detergent, softener, odor-enhancing and color-collecting products are not available separately. Using separate packaging leads to waste of water, time, and energy. The invention reduces plastic waste by 90%, eliminates water use, and eliminates the creation of waste harmful to the environment. Because the outer packaging is made of cardboard, it is 100% recyclable. Assuming a household washes seven laundry items a week, this number drops to four or at most five thanks to our product, saving time and energy. Because the product is not a liquid, packaging is both easier and more cost-effective. It minimizes the amount of plastic waste released into the environment. Because it does not contain water, osmosis industrial water purification systems used in other liquid products are not required. Osmosis purification systems are known to produce 30-40% of wastewater during production. Since the inventive product does not use water in its production, there is no such wastewater problem. Thanks to its color-collecting fabric feature, There's no need to separate colored and white laundry. This allows for more laundry to be washed using less energy, time, and detergent. This reduces the use of other products, providing additional benefits to the consumer. The relevant compound consists of the components listed in Table 1. Table 1. Ingredients Contained in Compact Laundry Compound Ingredients Ingredient Descriptions Preferred ratio by weight EsterQuat An ammonium salt containing the ester group 5-10% Salt Filler Raw Material 10-15% Caustic Beads Sodium Hydroxide [NaOH] 24% Powder SLS Sodium Lauryl Sulfate Powder 1-5% KD Cocoamide DEA-KD, Coconut 1-5% diethanolamide MPG Mono Propylene Glycol 1-5% LABSA Linear Alkyl Benzene 24% Optical CBS-X Optical Fluorescent Whitening Agent 0.05'0.5% Enzyme Protease, Alpha Amylase, Lipase 0.3-0.6% Essence Fragrance in Textile Products 3-8% Powder Food Dye It is used only for giving color. 0.001-0.004% It is present in the relevant compact detergent compound by weight. PEG 4000 is a thickener, enables the product to transition to solid form and provides stability in the formulation. The compound contains % by weight. It is a humectant and controls the moisture in the product, thus preventing the product from drying out. The compound also controls viscosity. The compound contains % by weight. It is an emulsifier and enables the mixing of liquid-solid materials. The compound contains 1-5% by weight of KD Comperland (CAS No: 90622-74-5). It is a viscosity increaser and provides the desired density by adjusting the consistency of the formula. The compound contains % by weight. It is an anionic surfactant, a foaming agent, and also provides foam that increases cleaning power. The compound contains 2-4% by weight of caustic beads (CAS No: 1310-73-2). Caustic is a pH adjuster and ensures pH balance in the formulation. The compound contains % by weight. It is an anionic surfactant and has cleaning properties. The compound contains % by weight. It is cationic surface active and performs the function of fabric softener. The compound contains 0.5-2% EDTA (CAS No: 6381-92-6) by weight. EDTA maintains the stability of the formula by adjusting pH and binding metal ions. Compound, % by weight, removes protein-based stains. Alpha-amylase (CAS No: 9000-90-2) cleans food and starch-based stains. Lipase (CAS No: 9001-62-1) removes oil-based stains. The compound contains 3-8% essential oil by weight. It eliminates bad odors and provides a pleasant scent in laundry. The compound contains 0.05-0.5% optical CBS-X by weight. The compound contains 0.001-0.004% food coloring by weight. The mixture, normally in a dough-like consistency, is brought to a certain temperature and then transferred to the production machine using a pump until it reaches a spreadable consistency. Nozzles in the production machine allow the mixture to be applied to the microporous fabric, which has color-picking properties, using a coating method. The completed coating process is quickly directed to the cold air tunnel via a conveyor system, where it solidifies. The solidified product is first cut lengthwise with slicing blades and then transferred to the horizontal cutting unit. Products that have completed the horizontal cutting process enter the dehumidification tunnel. Products exiting the dehumidification tunnel are covered with transparent packaging made of OPP (Oriented Polypropylene) and/or PVA (polyvinyl alcohol), in one preferred application. The coated products are placed in cardboard boxes and boxes, completing the process. PEG 4000 is added to chrome cauldrons heated to 70°C. After waiting for one hour, the product melts and is then added to the salt. Caustic soda is then added and mixed for 20 minutes. EsterQart is then added and mixed for 10 minutes. Powdered SLS is added and mixed for 10 minutes. KD, MPG, LABSA, OPTIK CBS-X, and Enzyme are added and mixed for another 10 minutes. Corn starch is added to the entire mixture and mixed for 30 minutes. After that, the fragrance is added and mixed for another 10 minutes. Powdered food coloring is added to the prepared mixture and mixed for 15 minutes. After the product temperature is lowered to 50°C, it is transferred to the machine via pumps. The spreadable mixture, collected in the machine, is applied to the fabric, which is microporous, color-catching, and electrostatically absorbent, thus attracting textile dyes. The fabric, completely coated with the mixture, is then placed in a cold air tunnel, and the temperature is lowered to 0°C. This solidifies and solidifies the product. The fabric does not absorb the product; the resulting mixture, which is not fully solid and does not run too thin, is coated, or rather, applied, onto the fabric. This creates a layer on the fabric. The mixture is mixed for 10 minutes to ensure the dye, added during the mixing phase, is thoroughly integrated into the mixture. Powdered food coloring is added to the mixture. Mixing is continued for another 15 minutes to ensure the dye is evenly distributed. The temperature of the mixture is reduced to 50°C. The dough-like mixture is transferred to the resting unit and allowed to sit. To bring the product to a spreadable consistency, the mixture removed from the resting unit is brought to a specific temperature. This brings the initially dough-like mixture to a spreadable consistency. The product is then pumped into the coating machine. In other words, it is sprayed through the coating machine's nozzles and transferred to the machine for application by coating onto microporous, color-receptive fabric. The product is applied to fabric that is susceptible to color-receptive electrostatic textile dyes by coating/coating. After the coating/spreading process is completed, the fabric is quickly directed to the cold air tunnel via a conveyor system. Here, the fabric is cooled to 0°C, allowing the mixture layer on top to solidify. The solidified layered fabric is first cut lengthwise using vertical slicing blades. It is then transferred to the horizontal cutting unit, completing the horizontal cutting process. The cut products are directed to the dehumidification tunnel. The final processing is performed by removing the moisture from the products passing through the dehumidification tunnel. The products exiting the dehumidification tunnel are covered with transparent packaging. The packaged products are arranged in cardboard boxes and placed in boxes. The final product, a color-separating fabric containing compact laundry compound, is placed in the drum section of the washing machine. The washing process begins by adding laundry, without the need for any additional detergent, softener, fragrance enhancer, or color-separating products. The product is designed to run on short 25°C programs, depending on color and weight.

Claims (31)

REQUESTS 1. It is a compact detergent compound coated on fabric with color-separating properties, suitable for use in washing machines and by hand, and its feature is that it contains softeners and/or detergents and/or odor enhancers and/or stain removers. No: and/or wt% and/or 1-5% MPG (CAS No: 57- and/or 1-5% SLS (CAS No: and/or wt% and/or 5-10% Esterquat (CAS No: and/or 0.3-0.6% by weight triple enzyme complex and/or 3-8% essence and/or containing. 3. Compact detergent compound according to claim 1 or claim 2, characterized in that it contains the cationic surface active substance Esterquat (CAS No: 91995-81-2) as a softening agent. 4. Compact detergent composition according to any of the above claims, characterized in that it contains SLS (CAS No: 152-21-3), which is an anionic surfactant as a detergent/cleaning agent and provides increased cleaning power by creating foam. 5. A compact detergent composition according to any of the above claims, characterised in that it contains the anionic surfactant LABSA (CAS No: 27176-87-0) as detergent/cleaning agent. 6. Compact detergent compound according to any of the above claims, characterized in that it contains a triple enzyme complex that provides stain removing effect. 7. Compact detergent compound according to any of the above claims, characterized in that it contains protease (CAS No: 9014-01-1) which is present in the triple enzyme complex and enables the removal of protein-based stains. 8. Compact detergent composition according to any of the above claims, characterized in that it contains alpha-amylase (CAS No: 9000-90-2) which is present in the triple enzyme complex and enables the removal of food and/or starch-based stains. 9. Compact detergent composition according to any of the above claims, characterized in that it contains lipase (CAS No: 9001-62-1) which is present in the triple enzyme complex and enables the removal of oil-based stains. 10. Compact detergent compound according to any of the above claims, characterized in that it contains PEG, which enables the product to pass into solid form and provides stability in the formulation. 11. Compact detergent composition according to any of the above claims, characterized in that it contains corn starch (CAS No: 68412-29-3), which prevents the product from drying out thanks to its moisture retaining properties. 12. A compact detergent composition according to any of the above claims, characterised in that it contains Salt (CAS No: 7647-14-5) which is used as a filler and provides viscosity control. 13. Compact detergent compound according to any of the above claims, characterized in that it contains MPG (CAS No: 57-55-6), which ensures the mixing of liquid-solid substances thanks to its emulsifier properties. 14. Compact detergent composition according to any of the above claims, characterised in that it contains KD Comperland (CAS No: 90622-74-5), which increases the consistency of the mixture by being used as a viscosity enhancer. 15. A compact detergent composition according to any of the above claims, characterised in that it contains caustic beads (CAS No: 1310-73-2) which provides pH balance. 16. Compact detergent compound according to any of the above claims, characterized in that it contains EDTA (CAS No: 6381-92-6), which provides pH balance and increases the stability of the formula by binding metal ions. 17. It is a method of obtaining compact detergent compound coated on fabric with color separating properties suitable for use in washing machines and by hand, and is characterized by; a. adding thickening chemical compound to the mixing drum, b. heating, c. adding filler and pH adjusting compound to the melted compound, d. mixing, e. adding cationic surfactant to the mixture and mixing, f. adding anionic surfactant to the mixture and mixing, g. adding emulsifier, viscosity increaser, enzyme, cationic and anionic surfactant to the mixture and mixing, li. adding starch to the mixture and mixing, i. adding essence to the mixture and mixing, j. adding powdered food coloring to the mixture and mixing, k. cooling the mixture which has become dough, l. It includes the process steps of waiting the mixture in the resting cauldron. 18. A method of obtaining a compact detergent compound according to claim 17, characterized in that the solidifying chemical compound in step “a” is PEG 4000. 19. A method of obtaining a compact detergent compound according to any one of Claims 17 to 18, and its feature is that it includes the process step of heating the boiler up to 70°C in step "b". 20. A method of obtaining a compact detergent compound according to any one of claims 17 to 19, characterised in that in step "c" the filler is salt and the pH adjusting agent is caustic beads. 21. A method for obtaining a compact detergent compound according to any one of claims 17 to 20, characterised in that it includes the process step of mixing the mixture for 20 minutes in step "d". 22. A method for obtaining a compact detergent compound according to any one of claims 17 to 21, characterised in that it includes the process step of adding EsterQuat as a cationic surfactant in step "e" and mixing the mixture for 10 minutes. 23. A method for obtaining a compact detergent compound according to any one of claims 17 to 22, characterised in that it includes the process step of adding powdered SLS as anionic surfactant in step "f" and mixing the mixture for 10 minutes. 24. A method for obtaining compact detergent compound according to any one of Claims - 17 to 23, and is characterized in that it includes the step of adding MPG as emulsifier, KD Comperland as viscosity enhancer, protease, lipase, alpha amylase as enzymes, optical CBS-X and LABSA as cationic and anionic surfactants to the mixture in step "g" and mixing for 10 minutes. 25. A method of obtaining a compact detergent compound according to any one of Claims 17 to 24, characterized in that it includes the process step of adding corn starch to the mixture in step "h" and mixing for 30 minutes. 26. A method of obtaining a compact detergent compound according to any one of claims 17 to 25, characterized in that it includes the process step of adding essence to the mixture in step i and mixing it for 10 minutes. 27. A method of obtaining a compact detergent compound according to any one of claims 17 to 26, and is characterized in that it includes the step of adding powdered food coloring to the mixture and mixing it for 10 minutes until it becomes homogeneous. 28. A method for obtaining a compact detergent compound according to any one of claims 17 to 27, and its feature is that it includes the step of waiting for the mixture in the resting tank to cool down until the temperature drops to 50°C in step “1”. 29. It is a method of obtaining fabric with a compact detergent compound suitable for washing machines and hand use in accordance with claim 17, and a cleaner, color protector, stain remover, softener, odor booster compound, and its feature is; connecting the color catcher fabric to the production line in a bobbin form, a. coating the mixture in a consistency that can be applied to the fabrics coming to the production line, c. cooling the fabric coated with the mixture, d. slicing the cooled fabric vertically, e. cooling it again, cutting the cooled fabrics suitable for packaging, g. dehumidifying the fabrics in the humidity chamber, h. packaging the fabrics coming out of the humidity chamber, it includes the process steps. 30. A method of obtaining fabric with a compact detergent compound according to claim 29, characterized in that it includes the process step of cooling the fabric on which the mixture is applied to 0°C in step c. 31. A method of obtaining fabric with a compact detergent compound, as claimed in claim 29, and its feature is that it includes the step of activating the reserve cooling system in order to prevent the product from solidifying completely in step e, and cooling the fabrics before packaging by reducing the temperature to 0°C again.