Treatment technology for improving softness and bulkiness of wool fabric

Abstract

The invention provides a treatment technology for improving softness and bulkiness of a wool fabric, and relates to the field of wool treatment. The treatment technology for improving the softness and bulkiness of the wool fabric comprises the following steps: S1, preparing the wool fabric, carrying out preliminary pretreatment on the wool fabric, including cleaning and decontamination, so as to ensure the cleanness of the fiber surface, S2, adding 510g / L of sodium hydroxide and 50100g / L of neutral inorganic salt into a treatment bath under an alkaline condition, controlling the bath ratio to be 1: 2040 and the pH value to be 79, and carrying out heat preservation for 2-3 hours, so as to obtain the wool fabric with the softness and bulkiness improved. S3, the wool fabric is subjected to swelling treatment in the bath liquid, the temperature is controlled to be 80100 DEG C, the lasting time is 3060 minutes, and it is ensured that the wool fiber structure is expanded so as to improve the bulkiness. According to the technical scheme, inorganic salt is innovatively used for replacing a traditional organic softening agent and a fluffy finishing agent, so that the softness and the fluffy property of the wool fabric are greatly improved, and meanwhile, the problem of fiber damage caused by use of organic compounds in a traditional process is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wool processing, in particular to a processing technology for improving the softness and fluffiness of wool fabrics. Background Art

[0002] The present invention relates to a processing technology for improving the softness and fluffiness of wool fabrics, which is specifically achieved by using inorganic salts to replace traditional softeners and fluffiness finishing agents. This technology is based on the fact that under hot and humid conditions, by adjusting the pH value and using salt ions of a certain concentration, the wool fabric is swollen, and then shrunk and shaped, thereby maintaining the structural stability of the fabric and improving the fluffiness and softness of the fabric. Its main advantages are that it avoids the pollution of the environment by traditional silicone additives, while reducing costs and causing less damage to the physical properties of the fabric.

[0003] However, although this process has advantages in terms of environmental protection and cost, it also has some disadvantages. For example, in the specific operation, the process parameters, such as the accuracy of pH value and temperature, need to be strictly controlled, otherwise the treatment effect of the fabric may be uneven. Although this process reduces the loss of fabric strength, it still causes damage to the wool fibers, affecting the overall service life of the fabric. Summary of the invention

[0004] Technical issues solved In view of the deficiencies of the prior art, the present invention provides a processing technology for improving the softness and fluffiness of wool fabrics, solving the problem of uneven processing effects on fabrics caused by inaccurate process parameters; damage to wool fibers affects the overall service life of the fabric.

[0005] Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A processing technology for improving the softness and fluffiness of wool fabrics, comprising: S1. Prepare wool fabrics and perform preliminary pretreatment, including washing and decontamination, to ensure the cleanliness of the fiber surface; S2. Under alkaline conditions, sodium hydroxide 510 g / L and neutral inorganic salt 50100 g / L were added to the treatment bath, the bath ratio was 1:2040, and the pH value was controlled between 79; S3. The wool fabric is swelled in the bath at a temperature of 80100°C for 3060 minutes to ensure that the wool fiber structure expands to improve bulk; S4. Keep the bath evenly stirred during the treatment, the stirring frequency is 1015 times per minute to ensure uniform treatment of all parts of the fabric; S5. After the treatment is completed, the bath temperature is slowly reduced to 4050°C, and the temperature is reduced by 12°C per minute to stabilize the swelling state of the wool fiber; S6. Adding fabric strength protectant during cooling at a concentration of 0.52 g / L to further reduce the possibility of fiber damage; S7. adjusting the pH value to 67 and continuing the treatment at 4050°C for 1530 minutes to achieve fiber shaping and stabilization; S8. Rinse the fabric until there is no obvious residue in the waste liquid; S9. The fabric is subjected to low temperature drying at 6080°C for 15 to 30 minutes to maintain the softness and fluffy properties of the fabric; S10. After drying, the fabric is gently kneaded at low pressure using mechanical finishing equipment to further improve softness and fluffiness; S11. The treated wool fabrics must undergo quality testing to ensure that their softness, fluffiness, strength and other indicators meet the expected requirements; S12. The treated fabric is naturally cooled and packaged for market sale or further processing.

[0006] Preferably, the inorganic salt in S2 is preferably sodium sulfate or sodium phosphate to ensure the stability of the treatment effect. The swelling time in S3 is appropriately adjusted according to the thickness of the fabric. The swelling time of thicker fabrics should be extended to 45 to 60 minutes.

[0007] Preferably, the cooling process in S5 needs to be controlled by a gradual cooling system to ensure that the fiber structure does not shrink rapidly during the cooling process. The fabric strength protective agent in S6 is preferably polyvinyl alcohol, which can effectively improve the wear resistance and damage resistance of the fiber. The pH value in the treatment liquid can be monitored in real time by a continuous detection system and automatically adjusted as needed.

[0008] Preferably, the rinsing process in S8 uses warm water at 25-30°C to prevent structural instability of the wool fibers caused by temperature differences, and the drying temperature is controlled at 60-70°C to avoid thermal damage to the fabric fibers caused by excessively high temperatures.

[0009] Preferably, the mechanical finishing equipment in S10 is a low-pressure roller equipment, and the equipment running speed is controlled at 30-50 rpm to avoid excessive friction on the fabric surface.

[0010] Preferably, the inorganic salts used in the treatment process need to be recovered in the final treatment liquid to reduce environmental pollution, and the waste liquid generated in the process is treated by a filtration system to ensure that the emission requirements of environmental protection standards are met.

[0011] Preferably, the dimensional stability of the wool fabric is improved through the treatment process, and its dimensional change rate is controlled within ±3%.

[0012] Beneficial Effects The present invention provides a processing technology for improving the softness and fluffiness of wool fabrics. It has the following beneficial effects: This technical solution significantly improves the softness and fluffiness of wool fabrics by innovatively using inorganic salts to replace traditional organic softeners and bulking finishing agents, while effectively avoiding the fiber damage problem caused by the use of organic compounds in traditional processes. By precisely controlling the pH value, temperature and treatment time, the uniformity of fabric treatment is ensured and the unstable treatment effect is avoided. In addition, the addition of fabric strength protector effectively protects the physical properties of the fiber while improving the feel, making the treated fabric not only more comfortable but also more durable.

[0013] This solution has significant environmental advantages. By recycling and treating waste liquid, it reduces pollution to the environment and meets the requirements of sustainable development in the modern textile industry. The process also has low production costs and energy consumption, making it suitable for large-scale industrial applications. It can not only improve the market competitiveness of wool products, but also save costs for enterprises, providing a technical solution that takes into account both economy and environmental friendliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Embodiment 1 The embodiment of the present invention provides a processing technology for improving the softness and fluffiness of wool fabric, comprising: S1. preparing wool fabric and performing preliminary pretreatment on it, including washing and decontamination, to ensure the cleanliness of the fiber surface; S2. Under alkaline conditions, 510 g / L of sodium hydroxide and 50100 g / L of neutral inorganic salt are added to the treatment bath, the bath ratio is 1:2040, and the pH value is controlled between 79. The inorganic salt in S2 is preferably sodium sulfate or sodium phosphate to ensure the stability of the treatment effect. The swelling time in S3 is appropriately adjusted according to the thickness of the fabric. The swelling time of thicker fabrics should be extended to 60 minutes; S3. The wool fabric is swelled in the bath at a temperature of 80100°C for 3060 minutes to ensure that the wool fiber structure expands to improve bulk; S4. Keep the bath evenly stirred during the treatment, the stirring frequency is 1015 times per minute to ensure uniform treatment of all parts of the fabric; S5. After the treatment is completed, the bath temperature is slowly reduced to 4050°C, with a temperature reduction of 12°C per minute to stabilize the swelling state of the wool fiber. The cooling process in S5 needs to be controlled by a gradual cooling system to ensure that the fiber structure does not shrink sharply during the cooling process. The fabric strength protective agent in S6 is preferably polyvinyl alcohol, which can effectively improve the wear resistance and damage resistance of the fiber. The pH value in the treatment bath can be monitored in real time by a continuous detection system and automatically adjusted as needed; S6. Adding fabric strength protectant during cooling at a concentration of 0.52 g / L to further reduce the possibility of fiber damage; S7. adjusting the pH value to 67 and continuing the treatment at 4050°C for 1530 minutes to achieve fiber shaping and stabilization; S8. The fabric is rinsed until there is no obvious residue in the waste liquid. In S8, warm water at 30°C is used for the rinsing process to prevent the structural instability of the wool fiber caused by the temperature difference. The drying temperature is controlled at 70°C to avoid thermal damage to the fabric fiber caused by excessively high temperature. S9. The fabric is subjected to low temperature drying at 6080°C for 15 minutes to maintain the softness and fluffy properties of the fabric; S10. After drying, the fabric is gently kneaded at low pressure using a mechanical finishing device to further improve softness and fluffiness. The mechanical finishing device in S10 is a low-pressure roller device, and the operating speed of the device is controlled at 50 rpm to avoid excessive friction on the fabric surface; S11. The treated wool fabrics must undergo quality testing to ensure that their softness, fluffiness, strength and other indicators meet the expected requirements; S12. The treated fabric is naturally cooled and packaged for sale in the market or further processing. The inorganic salts used in the treatment process need to be recovered in the final treatment liquid to reduce environmental pollution. The waste liquid generated in the process is treated by a filtration system to ensure that it meets the environmental protection standard emission requirements. The dimensional stability of the wool fabric is improved through this treatment process, and its dimensional change rate is controlled within ±3%.

[0017] Embodiment 2 The embodiment of the present invention provides a processing technology for improving the softness and fluffiness of wool fabric, comprising: S1. preparing wool fabric and performing preliminary pretreatment on it, including washing and decontamination, to ensure the cleanliness of the fiber surface; S2. Under alkaline conditions, 510 g / L of sodium hydroxide and 50100 g / L of neutral inorganic salt are added to the treatment bath, the bath ratio is 1:2040, and the pH value is controlled between 79. The inorganic salt in S2 is preferably sodium sulfate or sodium phosphate to ensure the stability of the treatment effect. The swelling time in S3 is appropriately adjusted according to the thickness of the fabric. The swelling time of thicker fabrics should be extended to 45 minutes; S3. The wool fabric is swelled in the bath at a temperature of 80100°C for 3060 minutes to ensure that the wool fiber structure expands to improve bulk; S4. Keep the bath evenly stirred during the treatment, the stirring frequency is 1015 times per minute to ensure uniform treatment of all parts of the fabric; S5. After the treatment is completed, the bath temperature is slowly reduced to 4050°C, with a temperature reduction of 12°C per minute to stabilize the swelling state of the wool fiber. The cooling process in S5 needs to be controlled by a gradual cooling system to ensure that the fiber structure does not shrink sharply during the cooling process. The fabric strength protective agent in S6 is preferably polyvinyl alcohol, which can effectively improve the wear resistance and damage resistance of the fiber. The pH value in the treatment bath can be monitored in real time by a continuous detection system and automatically adjusted as needed; S6. Adding fabric strength protectant during cooling at a concentration of 0.52 g / L to further reduce the possibility of fiber damage; S7. adjusting the pH value to 67 and continuing the treatment at 4050°C for 1530 minutes to achieve fiber shaping and stabilization; S8. The fabric is rinsed until there is no obvious residue in the waste liquid. In S8, warm water at 25°C is used for the rinsing process to prevent the structural instability of the wool fiber caused by the temperature difference. The drying temperature is controlled at 60°C to avoid thermal damage to the fabric fiber caused by excessively high temperature. S9. The fabric is subjected to low temperature drying at 6080°C for 15 minutes to maintain the softness and fluffy properties of the fabric; S10. After drying, the fabric is gently kneaded at low pressure using a mechanical finishing device to further improve softness and fluffiness. The mechanical finishing device in S10 is a low-pressure roller device, and the operating speed of the device is controlled at 30 rpm to avoid excessive friction on the fabric surface; S11. The treated wool fabrics must undergo quality testing to ensure that their softness, fluffiness, strength and other indicators meet the expected requirements; S12. The treated fabric is naturally cooled and packaged for sale in the market or further processing. The inorganic salts used in the treatment process need to be recovered in the final treatment liquid to reduce environmental pollution. The waste liquid generated in the process is treated by a filtration system to ensure that it meets the environmental protection standard emission requirements. The dimensional stability of the wool fabric is improved through this treatment process, and its dimensional change rate is controlled within ±3%.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing technology for improving the softness and fluffiness of wool fabric, characterized in that: include: S1. Prepare wool fabrics and perform preliminary pretreatment, including washing and decontamination, to ensure the cleanliness of the fiber surface; S2. Under alkaline conditions, sodium hydroxide 510 g / L and neutral inorganic salt 50100 g / L were added to the treatment bath, the bath ratio was 1:2040, and the pH value was controlled between 79; S3. The wool fabric is swelled in the bath at a temperature of 80100°C for 3060 minutes to ensure that the wool fiber structure expands to improve bulk; S4. Keep the bath evenly stirred during the treatment, the stirring frequency is 1015 times per minute to ensure uniform treatment of all parts of the fabric; S5. After the treatment is completed, the bath temperature is slowly reduced to 4050°C, and the temperature is reduced by 12°C per minute to stabilize the swelling state of the wool fiber; S6. Adding fabric strength protector during cooling at a concentration of 0.52 g / L to further reduce the possibility of fiber damage; S7. adjusting the pH value to 67 and continuing the treatment at 4050°C for 1530 minutes to achieve fiber shaping and stabilization; S8. Rinse the fabric until there is no obvious residue in the waste liquid; S9. The fabric is subjected to low temperature drying at 6080°C for 15 to 30 minutes to maintain the softness and fluffy properties of the fabric; S10. After drying, the fabric is gently kneaded at low pressure using mechanical finishing equipment to further improve softness and fluffiness; S11. The treated wool fabrics must undergo quality testing to ensure that their softness, fluffiness, strength and other indicators meet the expected requirements; S12. The treated fabric is naturally cooled and packaged for market sale or further processing.

2. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The inorganic salt in S2 is preferably sodium sulfate or sodium phosphate to ensure the stability of the treatment effect. The swelling time in S3 is appropriately adjusted according to the thickness of the fabric. The swelling time of thicker fabrics should be extended to 45 to 60 minutes.

3. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The cooling process described in S5 needs to be controlled by a gradual cooling system to ensure that the fiber structure does not shrink sharply during the cooling process. The fabric strength protective agent described in S6 is preferably polyvinyl alcohol, which can effectively improve the wear resistance and damage resistance of the fiber. The pH value in the treatment liquid can be monitored in real time by a continuous detection system and automatically adjusted as needed.

4. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The rinsing process in S8 uses warm water at 25-30°C to prevent structural instability of wool fibers caused by temperature differences, and the drying temperature is controlled at 60-70°C to avoid thermal damage to fabric fibers caused by excessively high temperatures.

5. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The mechanical finishing equipment in S10 is a low-pressure roller equipment, and the equipment running speed is controlled at 30-50 rpm to avoid excessive friction on the fabric surface.

6. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The inorganic salts used in the treatment process need to be recovered in the final treatment liquid to reduce environmental pollution. The waste liquid generated in the process is treated by a filtration system to ensure that it meets the environmental protection standard emission requirements.

7. A processing technology for improving the softness and fluffiness of wool fabric according to claim 1, characterized in that: The dimensional stability of the wool fabric is improved through the treatment process, and the dimensional change rate is controlled within ±3%.

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