Color-protecting detergent for cleaning natural fiber garment fabric

Abstract

The invention relates to a color-protecting detergent for cleaning natural fiber garment materials, in particular to the technical field of detergents, the color-protecting detergent comprises a phase A, a phase B and a phase C in percentage by mass; wherein the phase A is prepared from 0.1 to 0.3 w / w% of disodium EDTA (Ethylene Diamine Tetraacetic Acid), 1 to 4 w / w% of polyvinylpyrrolidone, 2 to 7 w / w% of fatty alcohol-polyoxyethylene ether and 60.65 to 81.5 w / w% of deionized water; the phase B comprises: 2-8 w / w% of a cationic polymer; the phase C is prepared from the following components in percentage by weight: 0.1 to 0.5 percent of alkaline cellulase preparation, 13.1 to 18.7 percent of cocamidopropyl betaine, 0.1 to 0.35 percent of phenoxyethanol and 0.1 to 0.5 percent of plant essence. When the color-protecting detergent provided by the invention is applied to cleaning plant fiber clothing fabrics, stains can be effectively removed, the fabrics are not easy to fade and cross color after being cleaned, and the color-protecting effect is obvious.

Description

Technical Field

[0001] The invention belongs to the technical field of detergents, and in particular relates to a color-protecting detergent for cleaning natural fiber clothing fabrics. Background Art

[0002] Plant fiber clothing fabrics belong to natural fiber clothing fabrics, which are mainly divided into two categories: cotton and linen. Pure cotton fabrics have the soft luster of natural cotton fibers and feel soft, but have poor elasticity and are prone to creases. Linen fabrics are simple and natural, with a soft and bright luster, smooth, thick, and stiff feel. The fabric is relatively rough, with uneven thorns when touched, and the creases are deeper and recover more slowly after being held and released.

[0003] Color fastness to washing is one of the more important indicators of clothing fabrics. It depends on the interaction between the dye and the fiber and the solubility of the dye in water. For example, when dyeing, vat dyes and insoluble azo dyes enter the polymer matrix of the fiber, which facilitates the formation of water-insoluble substances, so these dyes have good color fastness to washing. Reactive and chrome dyes form covalent bonds with the fiber and become washable. Some dyes, such as direct dyes and acid dyes, have poor color fastness to washing. Direct dyes are commonly used in plant fibers, and thus the color fastness to washing is generally not high.

[0004] At present, there are generally two washing methods for natural fiber fabrics at home and abroad. One is dry cleaning, that is, using volatile organic solvents (the main components are tetrachloroethylene and hydrocarbon solvents) to dry clean the stains on the fabric. The solvent used for dry cleaning is dried and recovered by a recovery device. About 95% of the solvent is recovered, and the rest evaporates naturally in the air. Although this washing method has a good degreasing effect, some inorganic stains are not easy to clean. In addition, the pH value of the solvent used for dry cleaning is about 7.0-8.5, which is weakly alkaline. The fabric is easy to fade after washing and has the disadvantage of solvent odor; the other is wet cleaning, using water as the washing medium and water-soluble detergents for washing. The detergents circulating on the market are generally weakly alkaline detergents. Natural fibers generally have the problem of easy fading after washing, color difference, color matching, yellowing, and loss of gloss. In addition, the washing effect is extremely unsatisfactory for dark and light fabrics, leather and fabric clothing, and colorful clothing; and acidic detergents have the problem of unsatisfactory degreasing effect.

[0005] In summary, the market is in urgent need of a color-protecting detergent that can effectively remove stains while maintaining color without fading, gloss or affecting the feel. Summary of the invention

[0006] The object of the present invention is to provide a color-protecting detergent for cleaning natural fiber clothing fabrics in order to solve the above-mentioned problems.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0008] The present invention provides a color-protecting detergent for cleaning natural fiber clothing fabrics, wherein the color-protecting detergent comprises, by mass percentage, a phase A, a phase B and a phase C;

[0009] The phase A comprises: 0.1-0.3w / w% disodium EDTA, 1-4w / w% polyvinyl pyrrolidone, 2-7w / w% fatty alcohol polyoxyethylene ether and 60.65-81.5w / w% deionized water;

[0010] The B phase comprises: 2-8 w / w% cationic polymer;

[0011] The phase C comprises: 0.1-0.5w / w% alkaline cellulase preparation, 13.1-18.7w / w% cocamidopropyl betaine, 0.1-0.35w / w% phenoxyethanol and 0.1-0.5w / w% plant essence.

[0012] As a further optimization scheme of the present invention, the components of the alkaline cellulase preparation include alkaline cellulase, polyethylene glycol in an amount of 5-10% of the mass of alkaline cellulase, and oligogalactose in an amount of 1-5% of the mass of alkaline cellulase. As a small molecule carbohydrate, oligogalactose can bind to the surface of cellulase through hydrogen bonds and hydrophobic interactions to form a "hydration layer" barrier, reduce the destruction of the enzyme protein conformation by extreme pH or high temperature in an alkaline environment, and delay enzyme denaturation and inactivation. At the same time, under alkaline washing conditions, cellulase may be degraded due to its own proteolytic activity or oxidative stress. Oligogalactose can reduce the risk of autocatalysis and prolong the action time of the enzyme by competitively binding to the active site of the enzyme. In addition, oligogalactose is hydrophilic, can reduce the interfacial tension between dirt and detergent, promote the penetration of enzyme molecules into the interior of fabric fibers, and enhance the ability to decompose deep dirt.

[0013] As a further optimization scheme of the present invention, the cationic polymer is polyquaternary ammonium salt, polyethyleneimine or cationic starch.

[0014] As a further optimization scheme of the present invention, the color-protecting detergent is used for cleaning plant fiber clothing fabrics, and the plant fiber includes at least one of cotton fiber and linen fiber.

[0015] As a further optimization scheme of the present invention, the pH value of the color protection detergent is 5.5-6.2.

[0016] As a further optimization scheme of the present invention, the preparation method of the color-protecting detergent comprises the following steps:

[0017] (1) Place the formulated amount of Phase A raw materials into a homogenizing stirring pot at room temperature, then heat to 65°C and mix and stir until the Phase A raw materials are completely dissolved;

[0018] (2) First, cool the solution obtained in step (1) to 55° C., then filter the formulated amount of phase B raw materials and add them to a homogenizing stirring pot, maintain the temperature at 50-55° C., and mix and stir until the phase B raw materials are fully dissolved;

[0019] (3) first cooling the solution obtained in step (2) to 45° C., then adding the raw materials of phase C except the alkaline cellulase preparation step by step under continuous stirring, and finally, adding the alkaline cellulase preparation after the solution temperature drops below 35° C., and continuing to stir for 20-30 min until the mixture is uniformly mixed;

[0020] (4) detecting and adjusting the pH value of the solution obtained in step (3) to obtain a semi-finished product;

[0021] (5) The semi-finished product obtained in step (3) is subjected to quality inspection, discharging, filling and packaging to obtain the color-protecting detergent.

[0022] The beneficial effects of the present invention are:

[0023] When the color-protecting detergent provided by the present invention is applied to the cleaning of plant fiber clothing fabrics, it can effectively remove stains while keeping the fabrics from fading and color transfer after washing, and the color-protecting effect is obvious. Specifically, firstly, the use of alkaline cellulase preparations can efficiently catalyze and decompose dirt, thereby improving the detergent's decontamination ability. Secondly, the use of cationic polymers can, on the one hand, form a protective film on the fiber surface, thereby reducing the loss of dyes when washing the fabrics. On the other hand, the cationic polymers can combine with anionic dyes by virtue of their positive charge, thereby reducing the probability of dyes being adsorbed, thereby preventing the fabrics from fading, thereby improving the color fixation and anti-color transfer effects of the detergent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention provides a simplified process flow diagram of a method for preparing a color-protecting detergent. DETAILED DESCRIPTION

[0025] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] The names and sources of the raw materials used in the following examples are summarized in Table 1. Other materials, reagents, etc. used, unless otherwise specified, can be obtained through commercial channels.

[0027] In the following examples, any specific method not specified may be carried out according to conventional methods.

[0028] Table 1. Summary of raw material names and sources

[0029]

[0030]

[0031] Example 1

[0032] The color-protecting detergent provided in this embodiment includes, by weight percentage, phase A, phase B and phase C; wherein phase A includes: 0.1 w / w% disodium EDTA, 4 w / w% polyvinyl pyrrolidone, 2 w / w% fatty alcohol polyoxyethylene ether and 71.85 w / w% deionized water;

[0033] Phase B includes: 8w / w% Polyquaternium-47;

[0034] Phase C includes: 0.5w / w% alkaline cellulase preparation, 13.1w / w% cocamidopropyl betaine, 0.35w / w% phenoxyethanol and 0.1w / w% lavender essence, wherein the alkaline cellulase preparation includes alkaline cellulase, PEG in an amount of 5% of the mass of the alkaline cellulase and oligosaccharide in an amount of 1% of the mass of the alkaline cellulase.

[0035] The preparation method of color protection detergent, the process diagram is as follows Figure 1 As shown, the following steps are included:

[0036] (1) Place the formulated amount of Phase A raw materials into a homogenizing stirring pot at room temperature, heat to 65° C., and mix and stir until the Phase A raw materials are completely dissolved;

[0037] (2) first cooling the solution obtained in step (1) to 55° C., then filtering the formulated amount of phase B raw material and adding it to a homogenizing and stirring pot, maintaining the temperature in the homogenizing and stirring pot at 50-55° C., and mixing and homogenizing until the phase B raw material is fully dissolved; the mixing and homogenizing stirring operation is preferably firstly high-speed homogenization at 3000 n / min for 5 min, then low-speed homogenization at 1500 n / min for 5 min, and stirring is continued for 20-30 min after homogenization;

[0038] (3) first cooling the solution obtained in step (2) to 45° C., then adding the raw materials of phase C except the alkaline cellulase preparation step by step under continuous stirring, and finally, adding the alkaline cellulase preparation after the solution temperature drops below 35° C., and continuing to stir for 20-30 min until the mixture is uniformly mixed;

[0039] (4) detecting and adjusting the pH value of the solution obtained in step (3) to 5.6-6.2, thereby obtaining a semi-finished product;

[0040] (5) The semi-finished product obtained in step (3) is subjected to quality inspection, discharging, filling and packaging to obtain the color-protecting detergent.

[0041] Example 2

[0042] The color-protecting detergent provided in this embodiment includes, by weight percentage, a phase A, a phase B, and a phase C; wherein the phase A includes: 0.3 w / w% disodium EDTA, 1 w / w% polyvinyl pyrrolidone, 7 w / w% fatty alcohol polyoxyethylene ether, and 70.3 w / w% deionized water;

[0043] Phase B includes: 2w / w% polyethyleneimine;

[0044] Phase C includes: 0.1w / w% alkaline cellulase preparation, 18.7w / w% cocamidopropyl betaine, 0.1w / w% phenoxyethanol and 0.5w / w% lavender essence, wherein the alkaline cellulase preparation includes alkaline cellulase, PEG in an amount of 10% of the mass of the alkaline cellulase and oligosaccharide in an amount of 5% of the mass of the alkaline cellulase.

[0045] Under the formulation of the color-protecting detergent provided in Example 2, the color-protecting detergent was prepared using the preparation method described in Example 1.

[0046] Example 3

[0047] The color-protecting detergent provided in this embodiment includes, by weight percentage, a phase A, a phase B, and a phase C; wherein the phase A includes: 0.2 w / w% disodium EDTA, 2.5 w / w% polyvinyl pyrrolidone, 4.5 w / w% fatty alcohol polyoxyethylene ether, and 70.84 w / w% deionized water;

[0048] Phase B includes: 5w / w% cationic starch;

[0049] Phase C includes: 0.5w / w% alkaline cellulase preparation, 15.9w / w% cocamidopropyl betaine, 0.23w / w% phenoxyethanol and 0.3w / w% lavender essence, wherein the alkaline cellulase preparation includes alkaline cellulase, PEG in an amount of 10% of the mass of the alkaline cellulase and oligosaccharide in an amount of 5% of the mass of the alkaline cellulase.

[0050] Under the formulation of the color protecting detergent provided in Example 3, the color protecting detergent was prepared using the preparation method described in Example 1.

[0051] Verification test

[0052] 1. In order to explore the effect of the use of cationic polymers in color-protecting detergents on the performance of color-protecting detergents, based on the formula of other components of the color-protecting detergent provided in Example 3, cationic polymers in the color-protecting detergents were selected according to Table 2. Color-protecting detergent AD was prepared using the same preparation method as described in Example 1.

[0053] Table 2. Selection table of cationic polymers

[0054]

[0055] 2. In order to explore the effect of the use of alkaline cellulase preparations in color protection detergents on the performance of color protection detergents, based on the formula of the remaining components of the color protection detergent provided in Example 3, the alkaline cellulase preparation in the color protection detergent was selected according to Table 3, and the color protection detergent ac was prepared according to the preparation method described in Example 1.

[0056] Table 3. Selection table of alkaline cellulase preparations

[0057]

[0058]

[0059] Furthermore, the cationic starch in the color-protecting detergent b was replaced with polyquaternium-47, and the color-protecting detergent d was prepared according to the preparation method described in Example 1.

[0060] The cationic starch in the color-protecting detergent b was replaced with polyethyleneimine, and the color-protecting detergent e was prepared according to the preparation method described in Example 1.

[0061] 3. Color fixation and anti-color cross-talk test

[0062] Color fixing and color transfer prevention tests were conducted on color protecting detergents AD and ae.

[0063] The specific steps of the color fixation and anti-color cross-linking test are as follows:

[0064] 3.1 Test fabric

[0065] Several commercially available white cotton cloths (size: 32 cm×32 cm) were washed and bleached to prepare white cloth.

[0066] The obtained white cloth was dyed with direct red dye and direct black dye (commercially available) using NaCl with a bath ratio of 10:13 and boiled for 30 minutes to prepare red and black cloth.

[0067] 3.2 Test conditions

[0068] The test cloth was cut into white cloth and colored cloth (red and black cloth) with a size of 6 cm×6 cm. There were 5 pieces of white cloth and 5 pieces of colored cloth in each test group as parallel controls.

[0069] Color fixation and anti-dye migration test conditions: water temperature is 30℃±2℃, water hardness is 250mg CaCO 3 / L (Ca:Mg=6:4), the rotation speed during washing was 120r / min, the mass fraction of detergent used in each test group was 0.2%, and the washing time was 20min.

[0070] 3.3 Test methods

[0071] (1) First measure the chromaticity values ​​of white cloth and colored cloth before washing as the original values.

[0072] (2) After the color fixation and anti-dye migration tests are carried out according to the test conditions described in 1.2, the chromaticity values ​​of the white cloth and the colored cloth are measured after rinsing for 10 minutes and drying;

[0073] (3) Color fixation performance is expressed by the color difference of colored cloth before and after washing. The larger the color difference, the more obvious the fading of the colored cloth, and the worse the color fixation effect of the laundry detergent; on the contrary, the color fixation performance is good.

[0074] The anti-dye migration performance is expressed by the measured chromaticity difference of the white cloth before and after washing. The smaller the chromaticity difference, the less the amount of dye molecules washed off the colored cloth migrated to the white cloth through the solution, and the better the anti-dye migration effect of the laundry detergent.

[0075] 3.4 Results and Statistics

[0076] The results of each test group are calculated as average values. The results of the color fixation and anti-color transfer tests are shown in Table 4. In addition, a standard laundry detergent was used as a control.

[0077] Table 4. Result statistics

[0078]

[0079] It can be seen from Table 3 that, for color-protecting detergents AD, the color-fixing and anti-color-crossing effects of color-protecting detergent D without adding cationic polymers are not as good as those of color-protecting detergent AC with adding cationic polymers. The addition of cationic polymers in color-protecting detergents can form a protective film on the fiber surface after washing, reduce the loss of dyes, and weaken the migration ability of dyes between dark-colored fabrics and light-colored fabrics.

[0080] In addition, it can be seen from Table 4 that the color fixing and anti-color transfer effects of the color-protecting detergent C with the addition of cationic starch are comparable to those of the color-protecting detergent AB with the addition of polyquaternium-47 and polyethyleneimine.

[0081] Regarding color-protecting detergents ae, the composition of color-protecting detergent a is the same as that of color-protecting detergent C, so the test results are shared. The color-fixing and anti-color-bleeding effects of color-protecting detergent c without adding alkaline cellulase are equivalent to those of color-protecting detergent a. The color-fixing and anti-color-bleeding effects of color-protecting detergent b with added alkaline cellulase and without added galacto-oligosaccharide are not as good as those of color-protecting detergent a.

[0082] In addition, from the comparison of the results of color-protecting detergent de and color-protecting detergent AB, it can be seen that the effects of alkaline cellulase preparations on the color fixation and anti-color transfer performance of color-protecting detergents added with different cationic polymers tend to be consistent.

[0083] 4. Decontamination ability test

[0084] The detergency of color-protecting detergent AD and color-protecting detergent ae was determined by referring to the detergency determination method in the standard QB / T 1224-2012 liquid detergent for clothing. The ratios of the detergency values ​​of color-protecting detergent AD and color-protecting detergent ae to the standard laundry detergent decontamination value for carbon black stained cloth, protein stained cloth, and sebum stained cloth are shown in Table 5. Five parallel groups were set for each test group, and the experimental results of each test group were calculated as the average value.

[0085] Table 5. Result statistics

[0086]

[0087] Note: The detergency index of standard laundry detergent is 1.

[0088] It can be seen from Table 5 that, for color-protecting detergents AD, the detergency of color-protecting detergents AC with different cationic polymers added is slightly better than that of color-protecting detergent D without cationic polymers added, while the detergency of color-protecting detergent C with cationic starch added is better than that of color-protecting detergent AB with polyquaternium-47 and polyethyleneimine added.

[0089] Regarding color-protecting detergents ae, the composition of color-protecting detergent a is the same as that of color-protecting detergent C, so the test results are shared. Since alkaline cellulase can catalyze and decompose special dirt efficiently, the decontamination ability of color-protecting detergent c without alkaline cellulase is significantly lower than that of color-protecting detergent a.

[0090] In addition, color-protecting detergent b uses an alkaline cellulase preparation without galacto-oligosaccharide. By comparing the results of color-protecting detergent b with those of color-protecting detergent a, it can be seen that the presence of galacto-oligosaccharide in the alkaline cellulase preparation is beneficial to ensuring the dirt catalytic decomposition ability of the alkaline cellulase. From the comparison of the results of color-protecting detergent de with those of color-protecting detergent AB, it can also be seen that the use of galacto-oligosaccharide in the alkaline cellulase preparation has a similar effect on the decontamination ability of color-protecting detergents with different cationic polymers.

[0091] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A color-protecting detergent for cleaning natural fiber clothing fabrics, characterized in that: The color-protecting detergent comprises, by mass percentage, phase A, phase B and phase C; wherein: The phase A comprises: 0.1-0.3w / w% disodium EDTA, 1-4w / w% polyvinyl pyrrolidone, 2-7w / w% fatty alcohol polyoxyethylene ether and 60.65-81.5w / w% deionized water; The B phase comprises: 2-8 w / w% cationic polymer; The phase C comprises: 0.1-0.5w / w% alkaline cellulase preparation, 13.1-18.7w / w% cocamidopropyl betaine, 0.1-0.35w / w% phenoxyethanol and 0.1-0.5w / w% plant essence.

2. A color-protecting detergent for cleaning natural fiber clothing fabrics according to claim 1, characterized in that: The components of the alkaline cellulase preparation include alkaline cellulase, polyethylene glycol in an amount of 5-10% of the mass of the alkaline cellulase, and galacto-oligosaccharide in an amount of 1-5% of the mass of the alkaline cellulase.

3. A color-protecting detergent for cleaning natural fiber clothing fabrics according to claim 1, characterized in that: The cationic polymer is polyquaternium salt, polyethyleneimine or cationic starch.

4. A color-protecting detergent for cleaning natural fiber clothing fabrics according to claim 1, characterized in that: The color-protecting detergent is used for cleaning plant fiber clothing fabrics, and the plant fiber includes at least one of cotton fiber and hemp fiber.

5. The color-protecting detergent for cleaning natural fiber clothing fabrics according to claim 1, characterized in that: The pH value of the color protection detergent is 5.5-6.

2.

6. A color-protecting detergent for cleaning natural fiber clothing fabrics according to claim 1, characterized in that: The preparation method of the color-protecting detergent comprises the following steps: (1) Place the formulated amount of Phase A raw materials into a homogenizing stirring pot at room temperature, heat to 65° C., and mix and stir until the Phase A raw materials are completely dissolved; (2) First, cool the solution obtained in step (1) to 55° C., then filter the formulated amount of phase B raw materials and add them to a homogenizing stirring pot, maintain the temperature at 50-55° C., and mix and stir until the phase B raw materials are fully dissolved; (3) first cooling the solution obtained in step (2) to 45° C., then adding the raw materials of phase C except the alkaline cellulase preparation step by step under continuous stirring, and finally, adding the alkaline cellulase preparation after the solution temperature drops below 35° C., and continuing to stir for 20-30 min until the mixture is uniformly mixed; (4) detecting and adjusting the pH value of the solution obtained in step (3) to obtain a semi-finished product; (5) The semi-finished product obtained in step (3) is subjected to quality inspection, discharging, filling and packaging to obtain the color-protecting detergent.

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