Process for making a wash package for preventing cross colour

Abstract

The application discloses a kind of processes for making anti-color-bleeding washing bag, it relates to detergent production technical field.The anti-color-bleeding washing bag is packaged material with hot air nonwoven cloth, after mixing color absorbing fiber and powdery detergent, it is formed into package, color absorbing fiber uses viscose fiber loaded with cationic polymer, the cationic polymer is prepared by copolymerization reaction of 1-allyl-3-methyl imidazole and dimethyl diallyl ammonium chloride;Powdery detergent includes: sodium silicate, sodium bicarbonate, sodium citrate, sodium carboxymethyl cellulose, sodium gluconate, non-ionic surfactant, dodecyl benzene sulfonic acid and alkaline protease multiple decontamination aid, and the washing bag prepared has excellent anti-color-bleeding and decontamination double effect.

Description

Technical Field

[0001] This invention belongs to the field of detergent production technology, specifically relating to a manufacturing process for anti-color bleeding detergent packs. Background Technology

[0002] As residents' living standards improve, the practice of washing clothes together is becoming increasingly common. Color bleeding caused by dye loss when light and dark fabrics are washed together has become a major pain point for consumers. To address this issue, mainstream products have emerged on the market: color-absorbing sheets containing detergent and bulk color-absorbing fiber products.

[0003] The mainstream technology for detergent-containing color-absorbing sheets involves a composite of a non-woven fabric substrate loaded with a cationic polymer and a solid detergent coating. The cationic polymer is often a polydimethyldiallyl ammonium chloride homopolymer, which captures negatively charged direct dyes through electrostatic adsorption. However, the polydimethyldiallyl ammonium chloride molecular chain only has one type of cationic active site—quaternary ammonium salt—resulting in a limited binding mechanism for dyes and insufficient binding strength to cellulose fibers. During long-term storage or high-temperature washing, the polymer easily dissolves from the substrate, reducing color absorption efficiency. Simultaneously, the detergent is often applied as a coating to the surface of the color-absorbing sheet, making it difficult to control the uniformity of the coating thickness. During transportation and storage, the coating is prone to sticking or clumping due to moisture absorption, leading to unstable detergent release rates and preventing the color-absorbing and detergency components from working synergistically.

[0004] Products sold in bulk as color-absorbing fibers also exist, requiring consumers to add them to the washing machine along with laundry detergent. Under the high-speed water flow and mechanical tumbling of the washing machine, these fibers easily break and detach, forming a large amount of free short fiber debris. These detached fibers circulate with the water, clogging the washing machine's drain pump filter and drain pipes, leading to slow drainage or even machine malfunction and shutdown. Furthermore, these free fibers easily adhere to the surface of dark-colored clothing, forming lint that is difficult to remove after drying, severely affecting the appearance of the washed clothes. In addition, adding bulk fibers and laundry detergent in stages means that the initial absorption behavior of the fibers interferes with the dispersion process of surfactants and additives in the detergent, reducing both color absorption and stain removal efficiency.

[0005] To address the aforementioned issues, existing technologies have attempted to load modified cationic polymers onto viscose fibers to enhance dye absorption capacity. However, a complete technical solution has yet to be found that loads imidazole cationic copolymers with multiple dye binding sites onto viscose fibers and encapsulates them in a hot-air nonwoven fabric wash bag, simultaneously resolving the problems of bulk fiber shedding and machine blockage, as well as the synergistic effects of dye absorption and stain removal. Therefore, developing a wash bag manufacturing process that ensures strong dye binding, long-lasting colorfastness, eliminates the risk of fiber shedding, and also possesses excellent stain removal capabilities has significant application value. Summary of the Invention

[0006] The purpose of this invention is to provide a manufacturing process for a color-blocking laundry bag, resulting in a laundry bag that has both excellent color-blocking and stain-removing effects.

[0007] The technical solution adopted by the present invention to achieve the above objectives is as follows: A process for manufacturing a color-blocking laundry bag includes: placing color-absorbing fibers and powdered detergent inside packaging material, and then sealing the package.

[0008] Specifically, the above-mentioned process for manufacturing anti-color-bleeding washing bags includes: placing color-absorbing fibers and powdered detergent inside the packaging material, leaving a 15-20% cavity after filling, and then sealing the bag at a temperature of 130-150℃, a sealing pressure of 0.3-0.5MPa, a sealing time of 0.25-0.4s, cooling and holding the pressure for 0.5-0.8s, and air-cooling for 10-15s after sealing to obtain the anti-color-bleeding washing bag.

[0009] The total amount of absorbent fibers and powdered detergent in the above packaging materials is 8-35g.

[0010] The aforementioned color-absorbing fibers include viscose fibers loaded with cationic polymers; The aforementioned cationic polymers include polydimethyldiallylammonium chloride modified with imidazole compounds; The polydimethyldiallyl ammonium chloride modified with the above imidazole compounds was prepared by copolymerization of 1-allyl-3-methylimidazolium chloride and dimethyldiallyl ammonium chloride.

[0011] For the purposes of this invention, the packaging material is a non-woven fabric; the non-woven fabric is a hot-air non-woven fabric.

[0012] For the purposes of this invention, the mass ratio of the powdered detergent to the color-absorbing fiber is 20-30:1-2.

[0013] For the purposes of this invention, the powdered detergent, by weight, comprises: 10-20 parts sodium silicate, 8-12 parts sodium bicarbonate, 2-5 parts sodium citrate, 1-3 parts sodium carboxymethyl cellulose, 8-10 parts sodium gluconate, 5-15 parts nonionic surfactant, 5-10 parts dodecylbenzene sulfonic acid, and 0.5-1 part alkaline protease.

[0014] For the purposes of this invention, the aforementioned nonionic surfactant comprises fatty alcohol polyoxyethylene ether.

[0015] The washing pack provided by this invention achieves a synergistic effect of preventing color bleeding and removing stains. The color-absorbing fiber material is viscose fiber, which, after being loaded with polydimethyldiallyl ammonium chloride modified with imidazole compounds, has a large number of cationic sites enriched on the fiber surface. Direct dyes that fall off in the washing water are mostly negatively charged and are firmly fixed on the fibers by electrostatic adsorption. The imidazole groups can form multiple complex structures, improving the dye binding stability and making it difficult for them to desorb back into the water even in hard water environments, thus preventing color bleeding of light-colored clothing from the source. The powdered detergent compounded in the washing pack provides a stain removal system: silicate, sodium citrate, and sodium gluconate form a complex chelating buffer system, which complexes calcium and magnesium ions in the water to eliminate hard water interference; fatty alcohol polyoxyethylene ether and dodecylbenzene sulfonic acid are compounded to form a complex surfactant, which emulsifies and removes sebum, carbon black, and oil stains; alkaline protease specifically hydrolyzes stubborn protein stains. Hot air nonwoven fabric is quick to permeate water, allowing the color-absorbing fibers and detergents to be released and take effect simultaneously. The reserved cavity ensures that the material is in full contact with the water, and the heat-sealing process ensures that there is no powder leakage during use, achieving color absorption and locking, and multiple stain removal at the same time.

[0016] The present invention also discloses a method for preparing viscose fiber loaded with cationic polymer, comprising: adjusting the pH value of the cationic polymer solution to 10.5-11, then adding the viscose fiber to the cationic polymer solution, and treating it at 95-100℃ for 50-60 min to obtain viscose fiber loaded with cationic polymer.

[0017] Viscose fiber molecules are rich in hydroxyl groups, exhibiting excellent hydrophilic reactivity and making them an ideal carrier for cationic polymers. A solution of polydimethyldiallylammonium chloride modified with imidazole compounds was prepared and adjusted to an alkaline environment. The high pH opened up the amorphous regions of the fiber, increasing its porosity and facilitating the penetration of cationic polymers into the fiber interior. High-temperature heating further weakened the intermolecular hydrogen bonds of cellulose, allowing the cationic polymers to fully wet the fiber. Furthermore, the cationic polymers carry a high density of positive charges, forming a dual binding force of hydrogen bonds and electrostatic adsorption with the cellulose hydroxyl groups, stably fixing them to the fiber surface and pore structure. The modified viscose fiber acquires durable positively charged properties, enabling it to quickly capture negatively charged free dyes in water during washing, significantly improving its anti-bleeding adsorption capacity and binding strength.

[0018] For the purposes of this invention, the mass ratio of the viscose fiber to the cationic polymer is 1:3-5; and the concentration of the cationic polymer solution is 4-8 g / L.

[0019] This invention also discloses a method for preparing polydimethyldiallyl ammonium chloride modified with imidazole compounds, comprising: 1-Allyl-3-methylimidazolium chloride was added to a dimethyldiallylammonium chloride solution and stirred until homogeneous. Then, a disodium ethylenediaminetetraacetate solution was added, and nitrogen gas was purged for 20-30 minutes to remove dissolved oxygen. The mixture was then stirred at 80-130 r / min, heated to 50-60℃, and a 0.15-0.3 g / mL ammonium persulfate solution was added. After the addition was complete, the mixture was stirred at a constant temperature for 5-10 hours. The mixture was then washed with acetone and dried to obtain polydimethyldiallylammonium chloride modified with imidazole compounds.

[0020] This invention uses dimethyldiallyl ammonium chloride as the main monomer and 1-allyl-3-methylimidazolium chloride as the functional modifying monomer. Nitrogen gas is introduced to remove dissolved oxygen and prevent premature deactivation of free radicals. Ammonium persulfate, acting as an initiator, decomposes upon heating to generate free radicals, triggering the copolymerization of the two allyl monomers. Disodium ethylenediaminetetraacetate complexes the system with metallic impurities to prevent polymerization inhibition. During the isothermal stirring reaction, the imidazole ring structure is incorporated into the polymer molecular backbone, adding positively charged imidazole active sites to the existing quaternary ammonium cation. After the reaction is complete, unreacted monomers and impurities are removed by washing with acetone. Compared to ordinary polydimethyldiallyl ammonium chloride, the imidazole-modified polydimethyldiallyl ammonium chloride has a significantly increased number of cationic groups, greatly enhancing its electrostatic capture ability for negatively charged water-soluble dyes, thus providing stronger pigment adsorption capabilities for viscose fiber carriers.

[0021] For the purposes of this invention, the concentration of the above-mentioned dimethyl diallyl ammonium chloride solution is 55-65 wt%, the molar ratio of dimethyl diallyl ammonium chloride to 1-allyl-3-methylimidazolium chloride is 1:0.2-0.25; the concentration of the disodium ethylenediaminetetraacetate solution is 0.045-0.06 g / mL; the mass-to-volume ratio of ammonium persulfate to dimethyl diallyl ammonium chloride solution is 1 g:150-180 mL; and the mass ratio of ammonium persulfate to disodium ethylenediaminetetraacetate is 1:0.02-0.025.

[0022] The beneficial effects of this invention include: This invention utilizes imidazole-modified cationic polymers loaded with viscose fibers as the color-absorbing material. The cationic structure captures free dyes during washing through electrostatic interactions and complexation, resulting in a strong dye bond that is less prone to secondary detachment during washing. Its anti-color-bleeding effect is far superior to ordinary color-absorbing materials. Furthermore, when mixed and packaged with powdered detergent, it synergistically removes various stains, including carbon black, sebum, and proteins, while also maintaining cleaning performance in hard water environments. The hydrophilic nonwoven fabric packaging allows for rapid water permeability, and the standardized sealing process ensures no leakage during use, allowing the color-absorbing and stain-removing components to work simultaneously. The entire preparation process is controllable and stable, and the finished product possesses both excellent anti-color-bleeding and comprehensive stain-removing properties, making it suitable for everyday mixed laundry cleaning needs. Attached Figure Description

[0023] Figure 1 The infrared spectra of polydimethyldiallyl ammonium chloride modified with imidazole compounds and polydimethyldiallyl ammonium chloride prepared in Example 1 are shown. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be further described in detail below with reference to specific embodiments: The packaging material used in this embodiment is non-woven fabric. All of the above non-woven fabrics are hot-air non-woven fabrics, purchased from Changzhou Hanko Nonwoven Fabric Co., Ltd.

[0025] The total amount of absorbent fibers and powdered detergent inside the packaging material is 21g.

[0026] The mass ratio of powdered detergent to color-absorbing fibers is 20:1.

[0027] Example 1: A process for manufacturing a color-blocking laundry bag includes: placing color-absorbing fibers and powdered detergent inside a hot-air nonwoven packaging material, leaving a 15% cavity after filling, and then sealing the bag at a temperature of 130°C, a sealing pressure of 0.5 MPa, a sealing time of 0.25 s, followed by cooling and pressure holding for 0.5 s. After sealing, the bag is air-cooled for 10 s to set its shape, thus obtaining a color-blocking laundry bag.

[0028] By weight, the above-mentioned powdered detergent contains: 10 parts sodium silicate, 8 parts sodium bicarbonate, 2 parts sodium citrate, 1 part sodium carboxymethyl cellulose, 8 parts sodium gluconate, 5 parts fatty alcohol polyoxyethylene ether, 5 parts dodecylbenzene sulfonic acid, and 0.5 parts alkaline protease.

[0029] A method for preparing viscose fibers loaded with cationic polymers, comprising: The pH of a poly(diallyldimethylammonium chloride) solution modified with imidazole compounds was adjusted to 10.5. Viscose fibers were then added to the solution and treated at 95°C for 60 min to obtain viscose fibers loaded with cationic polymers. The mass ratio of viscose fibers to imidazole-modified poly(diallyldimethylammonium chloride) was 1:3; the concentration of the imidazole-modified poly(diallyldimethylammonium chloride) solution was 4 g / L.

[0030] A method for preparing imidazole-modified polydimethyldiallylammonium chloride includes: 1-Allyl-3-methylimidazolium chloride was added to a dimethyldiallylammonium chloride solution and stirred until homogeneous. Then, a disodium ethylenediaminetetraacetate solution was added, and nitrogen gas was purged for 20 min to remove dissolved oxygen. The mixture was then stirred at 80 r / min, heated to 50 °C, and a 0.15 g / mL ammonium persulfate solution was added. After the addition was complete, the mixture was stirred at a constant temperature for 10 h. The mixture was then washed with acetone and dried to obtain polydimethyldiallylammonium chloride modified with imidazole compounds.

[0031] The concentration of the above-mentioned dimethyl diallyl ammonium chloride solution is 55 wt%, the molar ratio of dimethyl diallyl ammonium chloride to 1-allyl-3-methylimidazolium chloride is 1:0.2; the concentration of the disodium ethylenediaminetetraacetate solution is 0.045 g / mL; the mass-volume ratio of ammonium persulfate to dimethyl diallyl ammonium chloride solution is 1 g:150 mL; and the mass ratio of ammonium persulfate to disodium ethylenediaminetetraacetate is 1:0.02.

[0032] Example 2: A process for manufacturing a color-blocking laundry bag includes: placing color-absorbing fibers and powdered detergent inside packaging material, leaving a 15% cavity after filling, then sealing the bag at a sealing temperature of 150℃, a sealing pressure of 0.3MPa, a sealing time of 0.4s, followed by cooling and pressure holding for 0.8s, and finally air-cooling for 15s to set the shape after sealing, thereby obtaining a color-blocking laundry bag.

[0033] By weight, the above-mentioned powdered detergent contains: 20 parts sodium silicate, 12 parts sodium bicarbonate, 5 parts sodium citrate, 3 parts sodium carboxymethyl cellulose, 10 parts sodium gluconate, 15 parts fatty alcohol polyoxyethylene ether, 10 parts dodecylbenzene sulfonic acid, and 1 part alkaline protease.

[0034] A method for preparing viscose fibers loaded with cationic polymers, comprising: The pH of a poly(diallyldimethylammonium chloride) solution modified with imidazole compounds was adjusted to 11. Viscose fibers were then added to the solution and treated at 100°C for 50 min to obtain viscose fibers loaded with cationic polymers. The mass ratio of viscose fibers to imidazole-modified poly(diallyldimethylammonium chloride) was 1:5; the concentration of the imidazole-modified poly(diallyldimethylammonium chloride) solution was 8 g / L.

[0035] A method for preparing imidazole-modified polydimethyldiallylammonium chloride includes: 1-Allyl-3-methylimidazolium chloride was added to a dimethyldiallylammonium chloride solution and stirred until homogeneous. Then, a disodium ethylenediaminetetraacetate solution was added, and nitrogen gas was purged for 30 min to remove dissolved oxygen. The mixture was then stirred at 130 r / min, heated to 60 °C, and a 0.3 g / mL ammonium persulfate solution was added. After the addition was complete, the mixture was stirred at a constant temperature for 5 h. The mixture was then washed with acetone and dried to obtain polydimethyldiallylammonium chloride modified with imidazole compounds.

[0036] The concentration of the above-mentioned dimethyl diallyl ammonium chloride solution is 65 wt%, the molar ratio of dimethyl diallyl ammonium chloride to 1-allyl-3-methylimidazolium chloride is 1:0.25; the concentration of the disodium ethylenediaminetetraacetate solution is 0.06 g / mL; the mass-to-volume ratio of ammonium persulfate to dimethyl diallyl ammonium chloride solution is 1 g:180 mL; and the mass ratio of ammonium persulfate to disodium ethylenediaminetetraacetate is 1:0.025.

[0037] Example 3: A process for manufacturing a color-blocking laundry bag includes: placing color-absorbing fibers and powdered detergent inside packaging material, leaving a 15% cavity after filling, then sealing the bag at a temperature of 140°C, a sealing pressure of 0.4 MPa, a sealing time of 0.3 s, followed by cooling and pressure holding for 0.6 s, and finally air-cooling for 13 s to set the shape after sealing, thereby obtaining a color-blocking laundry bag.

[0038] By weight, the above powdered detergent contains: 15 parts sodium silicate, 11 parts sodium bicarbonate, 3 parts sodium citrate, 2.5 parts sodium carboxymethyl cellulose, 8.5 parts sodium gluconate, 8 parts fatty alcohol polyoxyethylene ether, 8 parts dodecylbenzene sulfonic acid, and 0.6 parts alkaline protease.

[0039] A method for preparing viscose fibers loaded with cationic polymers, comprising: The pH of a poly(diallyldimethylammonium chloride) solution modified with imidazole compounds was adjusted to 11. Viscose fibers were then added to the solution and treated at 98°C for 55 min to obtain viscose fibers loaded with cationic polymers. The mass ratio of the viscose fibers to the imidazole-modified poly(diallyldimethylammonium chloride) solution was 1:3.5; the concentration of the imidazole-modified poly(diallyldimethylammonium chloride) solution was 5 g / L.

[0040] A method for preparing imidazole-modified polydimethyldiallylammonium chloride includes: 1-Allyl-3-methylimidazolium chloride was added to a dimethyldiallylammonium chloride solution and stirred until homogeneous. Then, a disodium ethylenediaminetetraacetate solution was added, and nitrogen gas was purged for 27 min to remove dissolved oxygen. The mixture was then stirred at 90 r / min, heated to 58 °C, and a 0.17 g / mL ammonium persulfate solution was added. After the addition was complete, the mixture was stirred at a constant temperature for 8 h. The mixture was then washed with acetone and dried to obtain polydimethyldiallylammonium chloride modified with imidazole compounds.

[0041] The concentration of the above-mentioned dimethyl diallyl ammonium chloride solution is 62 wt%, the molar ratio of dimethyl diallyl ammonium chloride to 1-allyl-3-methylimidazolium chloride is 1:0.23; the concentration of the disodium ethylenediaminetetraacetate solution is 0.048 g / mL; the mass-to-volume ratio of ammonium persulfate to dimethyl diallyl ammonium chloride solution is 1 g:160 mL; and the mass ratio of ammonium persulfate to disodium ethylenediaminetetraacetate is 1:0.024.

[0042] Comparative Example 1: The difference between the manufacturing process of an anti-color bleeding washing bag and Example 1 is that polydimethyldiallyl ammonium chloride is used instead of imidazole-modified polydimethyldiallyl ammonium chloride.

[0043] Comparative Example 2: The difference between the manufacturing process of an anti-color bleeding washing bag and Example 1 is that viscose fiber is used instead of viscose fiber loaded with cationic polymer.

[0044] Performance testing: 1. Infrared spectroscopy test The samples were tested using a Fourier transform infrared spectrometer.

[0045] The imidazole-modified polydimethyldiallyl ammonium chloride and polydimethyldiallyl ammonium chloride prepared in Example 1 were subjected to the above tests, and the results are as follows: Figure 1 As shown. By Figure 1 It can be seen that, compared with the infrared spectrum of polydimethyldiallyl ammonium chloride, the infrared spectrum of polydimethyldiallyl ammonium chloride modified with imidazole compounds is at 1588 cm⁻¹. -1 1435cm -1 The presence of an infrared characteristic absorption peak of an imidazole group indicates that 1-allyl-3-methylimidazolium chloride participates in the formation reaction of polydimethyldiallylammonium chloride modified by imidazole compounds.

[0046] 2. Color bleeding prevention test Take standard laundry detergent and the detergent packets prepared in Examples 1-3 and Comparative Examples 1-2, respectively. Using a detergent packet as 2wt% of the water volume, take the same weight of standard laundry detergent as the powdered detergent. Add each to 1L of hard water with a hardness of 250ppm. For each group, add one piece of blue cloth (dyed with a direct dye), one piece of red cloth (dyed with a direct dye), and two pieces of white cloth (6×6cm). Wash at room temperature for 25 minutes, then rinse with clean water and air dry. Use a fully automatic whiteness meter (calibrated for color difference before use) to measure the color difference of the white cloth before and after washing. The smaller the color difference value of the white cloth, the better the anti-color bleeding performance.

[0047] Table 1. Test results of anti-color bleeding performance The washing packs prepared in Examples 1-3 and Comparative Examples 1-2 were subjected to the above tests, and the results are shown in Table 1. As can be seen from Table 1, the anti-color bleeding performance of the washing packs prepared in the embodiments of the present invention is significantly better than that of the national standard laundry detergent and the comparative examples.

[0048] 3. Detergent power test According to GB / T 13174-2021 standard, the washing pack contains 2wt% water, and the weight of national standard laundry detergent and powdered detergent is the same. The stain removal value of the washing pack on carbon black soiled cloth JB-01, protein soiled cloth JB-02, and sebum soiled cloth JB-03 is tested to compare with the stain removal ratio of national standard laundry detergent.

[0049] Table 2. Results of the stain removal ratio test The washing packs prepared in Examples 1-3 and Comparative Examples 1-2 were subjected to the above tests, and the results are shown in Table 2. As can be seen from Table 2, the stain removal ratio of the washing packs prepared in the embodiments of the present invention is significantly higher than the benchmark value, indicating that their overall stain removal ability is superior to conventional laundry detergents and the comparative examples.

[0050] The conventional techniques described in the above embodiments are existing technologies known to those skilled in the art, and therefore will not be described in detail here.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A manufacturing process for an anti-color-bleeding laundry bag, characterized in that, include: It is prepared by placing color-absorbing fibers and powdered detergent inside packaging material and then sealing it; The color-absorbing fibers include viscose fibers loaded with cationic polymers; The cationic polymer includes polydimethyldiallylammonium chloride modified with imidazole compounds; The imidazole-modified polydimethyldiallyl ammonium chloride was prepared by copolymerization of 1-allyl-3-methylimidazolium chloride and dimethyldiallyl ammonium chloride.

2. The manufacturing process of an anti-color-bleeding washing bag according to claim 1, characterized in that, The mass ratio of the powdered detergent to the color-absorbing fiber is 20-30:1-2.

3. The manufacturing process for an anti-color-bleeding washing bag according to claim 1, characterized in that, The packaging material is non-woven fabric; the non-woven fabric is hot-air non-woven fabric.

4. The manufacturing process of an anti-color-bleeding washing bag according to claim 1, characterized in that, The sealing temperature during the sealing process is 130-150℃, the sealing pressure is 0.3-0.5MPa, and the sealing time is 0.25-0.4s.

5. The manufacturing process of an anti-color-bleeding washing bag according to claim 1, characterized in that, By weight, the powdered detergent contains: 10-20 parts sodium silicate, 8-12 parts sodium bicarbonate, 2-5 parts sodium citrate, 1-3 parts sodium carboxymethyl cellulose, 8-10 parts sodium gluconate, 5-15 parts nonionic surfactant, 5-10 parts dodecylbenzene sulfonic acid, and 0.5-1 part alkaline protease.

6. The manufacturing process of an anti-color-bleeding washing bag according to claim 5, characterized in that, The nonionic surfactant comprises fatty alcohol polyoxyethylene ether.

7. The manufacturing process of an anti-color-bleeding washing bag according to claim 1, characterized in that, The method for preparing the cationic polymer-loaded viscose fiber includes: adjusting the pH value of the cationic polymer solution to 10.5-11, then adding the viscose fiber to the cationic polymer solution, and treating it at 95-100℃ for 50-60 min to obtain the cationic polymer-loaded viscose fiber.

8. The manufacturing process of an anti-color-bleeding washing bag according to claim 7, characterized in that, The concentration of the cationic polymer solution is 4-8 g / L; the mass ratio of the viscose fiber to the cationic polymer is 1:3-5.

9. The manufacturing process of an anti-color-bleeding washing bag according to claim 1, characterized in that, The method for preparing the imidazole-modified polydiallyl ammonium chloride includes: 1-Allyl-3-methylimidazolium chloride was added to a dimethyldiallylammonium chloride solution and stirred until homogeneous. Then, a disodium ethylenediaminetetraacetate solution was added, and nitrogen gas was purged for 20-30 minutes to remove dissolved oxygen. The mixture was then stirred at 80-130 r / min, heated to 50-60℃, and a 0.15-0.3 g / mL ammonium persulfate solution was added. After the addition was complete, the mixture was stirred at a constant temperature for 5-10 hours. The mixture was then washed with acetone and dried to obtain polydimethyldiallylammonium chloride modified with imidazole compounds.

10. The manufacturing process of an anti-color-bleeding washing bag according to claim 9, characterized in that, The concentration of the dimethyl diallyl ammonium chloride solution is 55-65 wt%, and the molar ratio of dimethyl diallyl ammonium chloride to 1-allyl-3-methylimidazolium chloride is 1:0.2-0.25; the concentration of the disodium ethylenediaminetetraacetate solution is 0.045-0.06 g / mL; the mass-to-volume ratio of ammonium persulfate to dimethyl diallyl ammonium chloride solution is 1 g:150-180 mL; and the mass ratio of ammonium persulfate to disodium ethylenediaminetetraacetate is 1:0.02-0.025.

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