Pretreatment method for simulating durability evaluation of functional product by adopting high-speed washing device
By employing a pretreatment method involving high-speed washing equipment and rigorous drying, the problem of contaminant influence in the durability testing of functional products was solved, ensuring the accuracy and consistency of test results, shortening the testing cycle, and saving energy.
Patent Information
- Application Number
- CN202511384272.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2025-11-21
AI Technical Summary
In existing technologies, the accumulation of contaminants in the durability testing of functional products affects the accuracy and consistency of test results. Furthermore, the testing cycle is long and energy consumption is high, resulting in high quality control costs and resource waste.
A high-speed washing device is used with softened water and strict temperature control to avoid detergent residue. The combination of high-speed washing and strict drying process shortens the testing time and ensures that the sample surface is flat. A flat plate heat dryer is used to adjust the humidity for pretreatment.
It improves the rationality and reproducibility of functional test results, reduces the impact of contaminants, shortens test time, improves the consistency of results between laboratories, and saves energy consumption.
Abstract
Description
[Technical Field]
[0001] This invention belongs to the field of durability performance testing of functional products, specifically a pretreatment method for simulating the durability performance evaluation of functional products using a high-speed washing device. [Background Technology]
[0002] In the field of functional product durability testing, such as moisture management performance testing, water repellency testing, and hydrostatic pressure testing, current durability pretreatment methods typically involve multiple washes and dries using a household washing machine or standard washing machine combined with appropriate drying methods, followed by corresponding functional tests to evaluate the durability of the product's functionality. Based on industry practice, the following two main problems exist.
[0003] First, contamination is a significant issue. Conventional laboratory washing machines have complex internal structures, and after prolonged use, detergent residue, impurities, and microorganisms accumulate inside. These contaminants adhere to the test samples during subsequent washes, affecting the accuracy of test results. For example, residual detergent may alter the chemical properties of the sample surface, and microorganisms may corrode the sample, causing changes in functionality such as hydrophilicity or hydrophobicity. This contamination problem directly leads to difficulties in ensuring test reproducibility and consistency, posing a significant challenge to product development, quality control, and testing quality.
[0004] Secondly, there is the issue of testing cycle and energy consumption. In order to assess the durability of functionality, the industry often uses 3-5 to 10-50 washes, which results in long testing cycles and high energy consumption. This not only increases the industry's quality control costs but also causes a great waste of social resources. [Summary of the Invention]
[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a pretreatment method for simulating the durability performance evaluation of functional products using a high-speed washing device. This method avoids interference from additive residues in conventional washing and drying equipment, effectively improves the rationality and reproducibility of functional test results after durability pretreatment, and significantly shortens the durability treatment time.
[0006] To achieve the above objectives, a pretreatment method for evaluating the durability of functional products using a high-speed washing device is designed, comprising the following steps: First, softened water is added to the high-speed washing device, and the pre-cleaning temperature is set to 55℃. Once the water temperature reaches 55℃+ / -2℃, no detergent or accompanying fabric is added. After washing, the water is drained and set aside. Then, softened water is added again, and the high-speed washing device is set to 40℃. Once the water temperature reaches 40℃+ / -2℃, detergent is added, and the mixture is stirred. Then, the test sample, cut to the specified size, is added and washed. After washing, the sample is removed and rinsed twice. Then, it is hung to drip dry until no more water drips. A flatbed heat dryer is used to dry the sample. Finally, the sample is placed flat on a flat surface and conditioned in air at a temperature of 20+ / -2℃ and a relative humidity of 65+ / -4% for at least 4 hours. The durability of the functional product can then be evaluated.
[0007] Furthermore, the sample to be tested is a textile product with a cutting size of not less than 20cm x 20cm and not more than 20cm x 50cm; the softened water has a hardness of less than 35mg / kg, calculated as calcium carbonate.
[0008] Furthermore, the high-speed washing device adopts a high-speed dual-cylinder accelerated washing device with a standard water level of 40L, self-heating, temperature control accuracy of + / -2℃, washing speed of 560rpm + / -20rpm, and timer of 15min + / -1min.
[0009] Furthermore, the preprocessing method described in this invention specifically includes the following steps:
[0010] 1) Cut a sample with a size of not less than 20cm x 20cm and not more than 20cm x 50cm from the textile fabric to be tested, and use overlock thread to overlock the edges of the sample.
[0011] 2) Open the top cover of the high-speed washing device, add washing water, set the water temperature to 55℃, close the top cover, and when the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is between 55℃ and 2℃.
[0012] 3) Once the water temperature meets the requirements, there is no need to add detergent. Cover the top cover, start the device and wash for 15 minutes. After washing, drain the water.
[0013] 4) After draining, add washing water again, set the water temperature to 40℃, and close the top cover. When the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is 40℃+ / -2℃.
[0014] 5) After the water temperature meets the requirements, add detergent, stir for two minutes, add the sample, ensure that the sample is evenly distributed in the testing device, cover the top cover, and start the device to wash for 15 minutes.
[0015] 6) Add washing water to a clean rinsing container, take out the washed sample and place it in the rinsing container, rinse for one minute, and then repeat the rinsing once.
[0016] 7) Hang the sample to drip dry until no more water drips, use a flat plate heat dryer to dry the sample, and then place it flat on a flat surface and conditioned it in air at a temperature of 20+ / -2℃ and a relative humidity of 65+ / -4% for at least 4 hours. Then, perform the tests according to the corresponding functional evaluation method to evaluate the durability of the functional product.
[0017] Furthermore, when selecting the temperature in the flatbed heat press dryer, if the sample contains one or more of acrylic, wool, and silk, the temperature is selected as 120℃+ / -2℃; if the sample does not contain acrylic, wool, or silk, the temperature is selected as 180℃+ / -2℃.
[0018] Furthermore, the washing water is softened water with a hardness of less than 35 mg / kg, calculated as calcium carbonate.
[0019] Furthermore, the rinsing container is made of plastic and has a diameter of 50cm or more and a depth of 15cm or more.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] (1) The present invention can avoid interference from additive residues in conventional washing and drying equipment, and improve the consistency of results between laboratories;
[0022] (2) The high-speed washing device used in this invention can wash at a speed of up to about 560 rpm. 15 minutes of high-speed washing is equivalent to 10-15 washes of conventional washing, which greatly shortens the durability treatment time.
[0023] (3) The pre-cleaning of the test chamber of the present invention greatly reduces the pollution of the washing environment, and the strict soft water medium reduces the impact of water quality on the test.
[0024] (4) The present invention uses a flat plate heat dryer to dry the sample, which ensures the flatness of the test sample surface to the maximum extent.
[0025] In summary, this invention, through an ideal washing environment and a more reasonable drying method, can effectively improve the rationality and reproducibility of functional test results after durability pretreatment. Therefore, it can be used in conjunction with various performance tests, especially functional tests, of various textile products, and thus be used to evaluate the wash durability of product performance. [Detailed Implementation]
[0026] This invention discloses a pretreatment method for simulating the durability performance evaluation of functional products using a high-speed washing device. The principle of this pretreatment method is as follows: Approximately 40L of softened water (hardness less than 35mg / kg, calculated as calcium carbonate) is added to the high-speed washing device. The pre-cleaning temperature is set to 55℃. Once the water temperature reaches 55℃ ± 2℃, no detergent or accompanying fabric is added, and the product is washed for 15 minutes. The water is then drained and set aside. Next, approximately 40L of softened water (hardness less than 35mg / kg, calculated as calcium carbonate) is added again. The high-speed washing device is set to 40℃. Once the water temperature reaches 40℃ ± 2℃, 160g of… ECE(A) detergent, stir for 2 minutes, then add the test sample cut to the specified size, wash for 15 minutes without adding any accompanying fabric; after washing, take out the sample, rinse twice, one minute each time; then hang to drip dry until the sample no longer drips, use a flatbed heat dryer to dry the sample, then place it flat on a flat surface and conditioned it in air at a temperature of 20+ / -2℃ and a relative humidity of 65+ / -4% for at least 4 hours, then it can be tested according to the corresponding functional evaluation method to evaluate the durability of functional products.
[0027] In this invention, the test samples are applicable to various textile products; the high-speed washing device adopts a high-speed dual-cylinder accelerated washing device with a standard water level of 40L, self-heating, temperature control accuracy of + / -2℃, and washing speed of 560rpm + / -20rpm. It can be timed for 15min + / -1min; the flatbed press dryer has a temperature control accuracy of + / -2℃; the rinsing container has a diameter of 50cm or more and a depth of 15cm or more, and is made of plastic; the balance has an accuracy of 0.01g; the overlock machine has overlock thread that does not contain fluorescent whitening agents and is 100% polyester; the ECE(A) detergent meets the requirements of ISO 6330:2021, 6.1.3; the washing water is softened water (hardness less than 35mg / kg, calculated as calcium carbonate).
[0028] The present invention will be further described below with reference to specific embodiments:
[0029] A pretreatment method for simulating the durability performance evaluation of functional products using a high-speed washing device, comprising the following steps:
[0030] 1. Sample preparation:
[0031] a) Textile fabric: Cut a sample with a size not less than 20cm x 20cm (warp x weft) and not more than 20cm x 50cm (warp x weft), and use overlock stitch to overlock the edges of the sample; the sample size should meet the size requirements of the corresponding functional test sample after the test.
[0032] b) Textile products: one piece.
[0033] 2. Open the top cover of the high-speed washing device and add approximately 40L of washing water.
[0034] 3. Set the water temperature to 55℃, put on the top cover, and when the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is between 55℃ and 2℃.
[0035] 4. Once the water temperature meets the requirements, there is no need to add detergent. Cover the top and start the device to wash for 15 minutes.
[0036] 5. After washing, drain the water.
[0037] 6. After draining, add approximately 40L of washing water again.
[0038] 7. Set the water temperature to 40℃+ / -2℃, close the top cover, and when the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is 40℃+ / -2℃.
[0039] 8. Once the water temperature meets the requirements, add 160g of ECE(A) or other commercial detergent and stir for two minutes.
[0040] 9. Add the sample, ensuring it is evenly distributed within the testing device. Cover with the top cover and start the device to wash for 15 minutes.
[0041] 10. Add about half the volume of washing water to a clean rinsing container. After washing, take out the sample and place it in the rinsing container, then rinse for one minute.
[0042] 11. Rinse once more.
[0043] 12. Hang the sample to drip dry until no more water drips, then dry the sample using a flatbed heat press dryer. The temperature of the flatbed heat press dryer should be selected as follows: 120℃ + / - 2℃ for samples containing one or more of acrylic, wool, and silk; 180℃ + / - 2℃ for samples not containing acrylic, wool, or silk.
[0044] 13. Then place it flat on a flat surface and acclimate it in air at a temperature of 20 + / - 2℃ and a relative humidity of 65 + / - 4% for at least 4 hours. Then conduct tests according to the corresponding functional evaluation method to evaluate the durability of the functional product.
[0045] This invention can be used in conjunction with various performance tests, especially functional tests, for various textile products to evaluate the wash durability of product performance. On the one hand, relevant parties can test samples that have undergone this pretreatment process to determine whether the product's performance meets the requirements after this pretreatment; on the other hand, relevant parties can test products that have not undergone this pretreatment and products that have undergone this pretreatment separately, and determine the degree of performance change by comparison.
[0046] This invention avoids interference from additive residues in conventional washing and drying equipment, improving the consistency of results across laboratories. It significantly shortens durability treatment time; conventional washing machines typically operate at 45-55 rpm, while the high-speed washing device used in this invention reaches approximately 560 rpm. A 15-minute high-speed wash is equivalent to 10-15 washes with conventional washing. Pre-cleaning of the test chamber greatly reduces environmental contamination, the use of a stringent soft water medium minimizes the impact of water quality on the test, and the flatbed drying method ensures maximum surface flatness of the test samples. Therefore, this invention, through an ideal washing environment and a more rational drying method, effectively improves the rationality and reproducibility of functional test results after durability pretreatment.
[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art. This invention is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this invention shall be considered equivalent substitutions and are included within the protection scope of this invention.
Claims
1. A pretreatment method for simulating the durability performance evaluation of functional products using a high-speed washing device, characterized in that, Includes the following steps: First, softened water is added to the high-speed washing device, and the pre-cleaning temperature is set to 55℃. When the water temperature reaches 55℃+ / -2℃, no detergent or accompanying fabric is added. After washing, the water is drained and set aside. Then, softened water is added again, and the high-speed washing device is set to 40℃. When the water temperature reaches 40℃+ / -2℃, detergent is added, and the mixture is stirred. Then, the test sample cut to the specified size is added and washed. After washing, remove the sample and rinse it twice. Then hang it to drip dry until it stops dripping. Use a flat plate heat dryer to dry the sample. Then place it flat on a flat surface and conditioned it in air at a temperature of 20+ / -2℃ and a relative humidity of 65+ / -4% for at least 4 hours. The durability of the functional product can then be evaluated.
2. The preprocessing method as described in claim 1, characterized in that: The test sample is a textile product with a cut size of not less than 20cm x 20cm and not more than 20cm x 50cm; the softened water has a hardness of less than 35mg / kg, calculated as calcium carbonate.
3. The preprocessing method as described in claim 1, characterized in that: The high-speed washing device adopts a high-speed dual-cylinder accelerated washing device with a standard water level of 40L, self-heating, temperature control accuracy of + / -2℃, washing speed of 560rpm + / -20rpm, and timer of 15min + / -1min.
4. The preprocessing method as described in claim 1, characterized in that, Includes the following steps: 1) Cut a sample with a size of not less than 20cm x 20cm and not more than 20cm x 50cm from the textile fabric to be tested, and use overlock thread to overlock the edges of the sample. 2) Open the top cover of the high-speed washing device, add washing water, set the water temperature to 55℃, close the top cover, and when the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is between 55℃ and 2℃. 3) Once the water temperature meets the requirements, there is no need to add detergent. Cover the top cover, start the device and wash for 15 minutes. After washing, drain the water. 4) After draining, add washing water again, set the water temperature to 40℃, and close the top cover. When the water temperature reaches the set temperature, open the top cover and use a thermometer to check that the water temperature is 40℃+ / -2℃. 5) After the water temperature meets the requirements, add detergent, stir for two minutes, add the sample, ensure that the sample is evenly distributed in the testing device, cover the top cover, and start the device to wash for 15 minutes. 6) Add washing water to a clean rinsing container, take out the washed sample and place it in the rinsing container, rinse for one minute, and then repeat the rinsing once. 7) Hang the sample to drip dry until no more water drips, use a flat plate heat dryer to dry the sample, and then place it flat on a flat surface and conditioned it in air at a temperature of 20+ / -2℃ and a relative humidity of 65+ / -4% for at least 4 hours. Then, perform the tests according to the corresponding functional evaluation method to evaluate the durability of the functional product.
5. The pretreatment method as described in claim 4, characterized in that: When selecting the temperature in the flatbed heat press dryer, if the sample contains one or more of acrylic, wool, and silk, the temperature should be 120℃+ / -2℃; if the sample does not contain acrylic, wool, or silk, the temperature should be 180℃+ / -2℃.
6. The preprocessing method as described in claim 4, characterized in that: The washing water used is softened water, with a hardness of less than 35 mg / kg, calculated as calcium carbonate.
7. The preprocessing method as described in claim 4, characterized in that: The rinsing container is made of plastic and has a diameter of 50cm or more and a depth of 15cm or more.