A kind of clothing protection sheet and its preparation method and use method

Abstract

The present invention discloses a depth-enhancing clothing sheet and a preparation method and a use method thereof, and relates to the technical field of clothing treatment auxiliaries. The depth-enhancing clothing sheet comprises a carrier sheet and a base material, and the base material comprises, by weight, 20 to 80 parts of a depth-enhancing agent and 5 to 20 parts of a quaternary ammonium salt surfactant, wherein the quaternary ammonium salt surfactant can act on the depth-enhancing agent under stirring and heating conditions to open the long chains of the depth-enhancing agent molecules. The depth-enhancing clothing sheet provided by the present invention utilizes a quaternary ammonium salt surfactant as an auxiliary agent for opening the molecular chains of the depth-enhancing agent in an anhydrous state, so that the depth-enhancing agent can adhere to the surface of clothing, thereby improving the diffuse reflection of clothing and increasing the color depth of clothing.

Description

Technical Field

[0001] The invention relates to the technical field of clothing additives, and in particular to a clothing-depth-enhancing protective sheet and a preparation method and a use method thereof. Background Art

[0002] During long-term use, clothes will become rough, hard, degraded and whitened due to washing and wear, and even dark colors will not be deep enough and black colors will not be black enough. Although clothes can be made soft and smooth by treating them with softeners after washing, the existing clothing protective sheets do not have the function of darkening, so the problem of clothes turning white and old has not been improved. The prior art only discloses reagents and methods for darkening fabrics or clothes before they leave the factory, such as treating fabrics with silicone oil or other darkening agents during the later finishing process of fabrics to increase the diffuse reflection of light by the fabrics, thereby achieving the darkening effect. However, the existing reagents and methods for deepening fabrics are not suitable for deepening clothing after leaving the factory. This is because the deepening agent used for deepening fabrics is usually a macromolecular silicone oil or modified silicone oil, acrylate polymer (weight average molecular weight of tens of thousands to hundreds of thousands), so it needs to be emulsified before use, for example, the deepening agent can only be evenly covered on the surface of the fabric after being completely dispersed in water by an emulsifier, but no emulsifier is added during daily laundry, so the deepening agent for fabrics cannot be used in the daily laundry process; in addition, since a large amount of emulsifier is required for emulsification of the deepening agent, the oil-emulsion ratio is as high as 4 to 6:1, and traditional emulsifiers are usually fatty alcohol polyoxyethylene ethers AEO-3 to 9, isomeric alcohol polyoxyethylene ethers TO3 to 8, nonylphenol polyoxyethylene ether NP-3 to 10, etc. These substances are difficult to be degraded by microorganisms or have a long degradation period. If used for household clothing treatment, the wastewater generated is directly discharged, which is easy to cause adverse effects on the environment.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a darkening clothing protective sheet and a preparation method and a use method thereof, aiming to solve the defect that the existing darkening agents used for fabric finishing cannot be used for daily darkening treatment of old clothes.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A darkening garment sheet comprises a carrier sheet and a base material, wherein the base material comprises, by weight, 20 to 80 parts of a darkening agent and 5 to 20 parts of a quaternary ammonium salt surfactant, wherein the quaternary ammonium salt surfactant can act on the darkening agent under stirring and heating conditions to open the long chains of the darkening agent molecules.

[0007] In the darkening protective film, the quaternary ammonium salt surfactant is selected from one or more combinations of fatty acid amide ethoxy quaternary ammonium salt, fatty acid imidazoline quaternary ammonium salt, and fatty acid ester quaternary ammonium salt.

[0008] In the depth-enhancing garment protection sheet, the depth-enhancing agent is selected from one or a combination of silicone oil, modified silicone oil, and acrylate polymer.

[0009] In the depth-enhancing clothing protection sheet, the carrier sheet is a sheet prepared from one or more of modified starch, modified cellulose or hemicellulose, and modified lignin.

[0010] In the depth-enhancing garment protection sheet, the weight ratio of the carrier sheet to the base material is 1:(1-10).

[0011] In the depth-enhancing garment protection sheet, the base material further comprises fragrance and fragrance carrier.

[0012] In the darkening clothing protection sheet, the fragrance carrier is kaolin or clay.

[0013] In the said darkening garment protection sheet, the said base material comprises 0.1 to 50 parts of fragrance and 5 to 30 parts of fragrance carrier by weight.

[0014] The preparation method of the deepening garment protection sheet as described above, wherein the method comprises the steps of: taking a deepening agent, heating it to melt it; adding a quaternary ammonium salt surfactant to the molten deepening agent, stirring and mixing; then adding a fragrance carrier, stirring and mixing; adjusting the material temperature to 50-70°C, adding fragrance, stirring evenly, and obtaining a molten base material; immersing the cut carrier sheet in the molten base material for 10-30 seconds, pulling it out, flattening it with a 10-70 mesh roller, and cooling and forming it to obtain a deepening garment protection sheet.

[0015] A method for using a color-enhancing clothing protection sheet, wherein the color-enhancing clothing protection sheet is the color-enhancing clothing protection sheet as described above, and the method for using the color-enhancing clothing protection sheet is added during a clothes drying process to make the clothes bright in color.

[0016] Beneficial effects:

[0017] The present invention provides a color-enhancing clothing sheet and a preparation method and a use method thereof. The color-enhancing clothing sheet is prepared by adding a quaternary ammonium salt surfactant to a color-enhancing agent. The quaternary ammonium salt surfactant can open the molecular chain of the color-enhancing agent in an anhydrous state, thereby realizing that the color-enhancing agent after the molecular chain is opened acts on the surface of clothing during the clothing drying process, thereby improving the diffuse reflection of the clothing, and thereby playing a role in deepening the color of the clothing. In addition, the color-enhancing agent and the quaternary ammonium salt surfactant can also make the clothing softer, smoother, and more fluffy, and have a care effect on the clothing. DETAILED DESCRIPTION

[0018] The present invention provides a depth-enhancing garment sheet and a preparation method and a use method thereof. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] A preferred embodiment of the present invention provides a darkening clothing sheet, which includes a carrier sheet and a base material attached to the carrier sheet, wherein the base material includes a quaternary ammonium salt surfactant and a darkening agent, and the base material includes, by weight, 20 to 80 parts of the darkening agent and 5 to 20 parts of the quaternary ammonium salt surfactant. The quaternary ammonium salt surfactant can act on the darkening agent under stirring and heating conditions to open the molecular chain of the darkening agent. The darkening agent after the molecular chain is opened can be directly attached to the surface of clothing during subsequent use, thereby improving the diffuse reflection of light by the clothing, thereby playing a role in deepening and brightening the color. At the same time, the darkening agent and the quaternary ammonium salt surfactant can repair fibers, making the clothing soft, fluffy and smooth.

[0020] Since the existing deepening agent needs to be emulsified by an emulsifier before it can be used, a large amount of water needs to be added in the emulsification process, resulting in a 50-85% reduction in the content of the active ingredient in the finished deepening agent. Therefore, a large amount of water is contained in the commercially available deepening agent emulsion, which greatly increases the transportation cost. Moreover, due to containing a large amount of emulsifier, it can usually only be used for the color deepening of fabrics, and will not be used for the color deepening of daily clothes. In the present embodiment, by adding a quaternary ammonium surfactant to the deepening agent, the quaternary ammonium surfactant and the deepening agent interact after melting, the molecular chain of the deepening agent is opened under anhydrous conditions, and a solid tablet is formed. Compared with the existing deepening agent emulsion for fabrics, the active ingredient content is high, the transportation cost is low, the storage time is longer, and it is no longer limited to use when the fabric is arranged, and it can also be used in the clothes drying process to achieve the effect of deepening the old and whitish clothes.

[0021] In the aforementioned deepening garment protective sheet, the deepening agent is selected from one or a combination of silicone oil, modified silicone oil, and acrylic polymer, all of which are macromolecular long-chain compounds; the quaternary ammonium salt surfactant can be diamidoethyl alkoxy quaternary ammonium compound, dialkyl dimethyl quaternary ammonium compound, ester quaternary ammonium compound, amide ethyl alkyl imidazoline quaternary ammonium compound, etc. The quaternary ammonium salt surfactant can open the molecular chain of the molten deepening agent during preparation, so that when it acts on clothing, the deepening agent can better adhere to the surface of clothing. Specifically, when preparing the clothing protection sheet, the quaternary ammonium salt surfactant can react with the darkening agent in a molten state, and its hydrophobic end can be combined with silicone oil, modified silicone oil or acrylate polymer. Under the action of stirring, the molecular chains of silicone oil, modified silicone oil and acrylate polymer are opened, and then they can be better dispersed in the material, which is equivalent to the role of the darkening agent being dispersed in water under the action of an emulsifier. Therefore, in the subsequent use process, it can be used without the action of an emulsifier; and when in use, through the heating effect of drying clothes, the cationic part of the quaternary ammonium salt surfactant will interact with the anion of the clothing fiber and enter the interior of the clothing fiber, which plays a role in repairing the fiber and making the fiber more supple; and the high molecular darkening agent will attach to and stay on the surface of the fiber along with the quaternary ammonium salt surfactant, and be fixed under the high temperature of the dryer. These darkening agents can increase the diffuse reflection of clothing, and then increase the depth of clothing color, making dark colors deeper and light colors brighter.

[0022] But, though the aforementioned quaternary ammonium salt surfactant can act with the deepening agent, its biodegradability is poor, unfriendly to environment.To this, in a kind of preferred embodiment, described quaternary ammonium salt surfactant is selected from one or more combinations in fatty acid amide ethoxy quaternary ammonium salt, fatty acid imidazoline quaternary ammonium salt, fatty acid ester group quaternary ammonium salt, these quaternary ammonium salt surfactants are prepared as raw material with the fatty acid of plant base, have good biodegradability, are therefore more friendly to environment.It should be noted that described fatty acid amide ethoxy quaternary ammonium salt, fatty acid imidazoline quaternary ammonium salt, fatty acid ester group quaternary ammonium salt are all purchased from Nanfeng County Daxin Technology Co., Ltd.

[0023] In order to increase the fragrance of the clothing protection sheet and make it have the effect of enhancing the fragrance of clothes, the base material of the clothing protection sheet also includes fragrances and fragrance carriers. The fragrances include free fragrances or fragrance microcapsules. These free fragrances or fragrance microcapsules can be attached to the surface of clothes and have the effect of enhancing fragrance or slowly releasing fragrance, which can improve the user experience of clothes.

[0024] In a preferred embodiment, the fragrance carrier is kaolin or clay. Using kaolin or clay as a fragrance carrier can increase the adhesion between the base material and the carrier sheet, which is beneficial to increase the proportion of the base material, thereby improving the darkening effect; in addition, kaolin and clay are both inorganic materials, which can increase the dryness of the product, which is more beneficial to the subsequent production process.

[0025] In a preferred embodiment, the base material includes, by weight: 20 to 80 parts of a darkening agent, 5 to 20 parts of a quaternary ammonium salt surfactant, 0.1 to 50 parts of a fragrance, and 5 to 30 parts of a fragrance carrier. The clothing protection sheet with this ratio has a good effect of deepening the color, softening, and enhancing the fragrance of clothing.

[0026] In the aforementioned deepening clothing sheet, the carrier sheet can be a non-woven fabric made of PVC, PET, or PP. The non-woven fabric has a porous layered structure and can be used as a carrier for deepening agents and quaternary ammonium salt surfactants, so as to form a sheet structure, facilitate packaging, storage, and transportation according to quantity, and facilitate the determination of the input amount of the clothing sheet according to the amount of clothing when in use. However, the non-woven fabrics made of PVC, PET, and PP cannot be degraded after use, which is not friendly to the environment and does not conform to the development concept of green environmental protection. In this regard, in a preferred embodiment, the carrier sheet is a sheet prepared from one or more of modified starch, modified cellulose or hemicellulose, and modified lignin. Since modified starch, modified cellulose or hemicellulose and modified lignin are biodegradable materials, the carrier sheet remaining after the clothing sheet is used can be degraded in the environment, so it will not affect the environment and is more environmentally friendly.

[0027] However, the carrier sheet has a limited loading capacity for darkening agents, quaternary ammonium surfactants, fragrances, and fragrance carriers. When it reaches a certain amount, increasing the loading capacity of the base material will make the sheet less soft and prone to base material peeling. In this regard, in a preferred embodiment, the weight ratio of the carrier sheet to the base material is 1:(1-10), so that the obtained clothing sheet has better softening and darkening effects. At the same time, the base material will not peel off when the sheet is folded. Preferably, the weight ratio of the carrier sheet to the base material is 1:(1-6). More preferably, the weight ratio of the carrier sheet to the base material is 1:(1-4), and the sheet has better softness.

[0028] The second aspect of the present invention also discloses a method for preparing a depth-enhancing clothing protection sheet, which comprises the following steps: taking a depth-enhancing agent according to a ratio, heating it to make it melt; adding a quaternary ammonium salt surfactant to the molten depth-enhancing agent, stirring and mixing, and fully mixing the two; then adding a fragrance carrier, stirring and mixing; adjusting the material temperature to 50-70°C, adding fragrance, stirring evenly, and obtaining a molten base material; immersing the cut carrier sheet in the molten base material for 10-30 seconds, pulling it out, flattening it with a 10-70 mesh roller, and cooling and forming it to obtain a depth-enhancing clothing protection sheet.

[0029] The above-mentioned deepening clothing protection sheet is prepared by first melting the deepening agent by heating, and then adding a quaternary ammonium surfactant. The interaction between the quaternary ammonium surfactant and the deepening agent is utilized to open the molecular chain of the macromolecular deepening agent in an anhydrous state, so that the deepening agent can exert a deepening effect during use and be better dispersed in the base material. The prepared clothing protection sheet is a water-free solid sheet, and therefore the transportation cost can be greatly reduced.

[0030] The third aspect of the present invention also provides a method for using a deepening garment protection sheet, which is to add the garment protection sheet to the dryer before the clothes drying program, the drying temperature of the clothes drying program is 90-120°C, the drying time is 30-120 minutes, the amount of garment protection sheet added is 4-8 pieces of clothing / 1 sheet, and the weight of each garment protection sheet is 1.8-10.0g. In this method of use, the high temperature when drying clothes is used to melt the base material components attached to the carrier sheet, and the deepening agent, quaternary ammonium salt surfactant and fragrance in the base material are transferred to the surface of the clothes through the high-speed rotation of the clothes, which has the effect of deepening, softening and enhancing the fragrance of the clothes. When the clothes drying program is completed, the effective ingredients on the carrier sheet are basically all transferred to the clothes, leaving only the carrier sheet, so after the clothes are taken out, the carrier sheet is removed, and the carrier sheet can be slowly biodegraded in the environment without affecting the environment.

[0031] It should be noted that the ratio of clothing to clothing protectors is an empirical value and can be changed according to actual needs and is not limited to the above ratio.

[0032] The method of using the depth-enhancing clothing sheet described in this embodiment does not need to be dissolved in water, nor is it limited to being used in the fabric finishing process. It is particularly suitable for use in the clothing drying process. Since it is a solid tablet, the effective ingredients in the base material need to be melted, volatilized or evaporated by the temperature during clothing drying, and then by the high-speed rotation during clothing drying, so that these effective ingredients can be evenly attached to the surface of the clothing to achieve the corresponding effect.

[0033] It can be seen that the darkening clothing sheet described in the present application has the effect of darkening the color of clothes and making clothes softer, smoother and fluffier. Since it is in the form of a sheet, it is easy to store, transport and use. In addition, the darkening clothing sheet can be used when clothes are dried, breaking the limitation that the existing darkening agent can only be used in the later finishing of fabrics, and solving the technical problem that clothes become old and white after long-term use.

[0034] To further illustrate the depth-enhancing garment protection sheet provided by the present invention, the following embodiments are provided.

[0035] Example 1

[0036] A depth-enhancing clothing sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:4; in terms of weight parts, the base material comprises: 60 parts of modified silicone oil, 10 parts of fatty amide ethoxy quaternary ammonium salt, 20 parts of fragrance, and 15 parts of kaolin.

[0037] The preparation method of the clothing protection sheet is as follows: taking a darkening agent according to a proportion, heating it to make it melt; adding a quaternary ammonium salt surfactant to the melted darkening agent, stirring and mixing, and fully mixing the two; then adding a fragrance carrier, stirring and mixing; adjusting the material body temperature to 62°C, adding fragrance, stirring evenly, and obtaining a molten base material; dipping a cut carrier sheet into the molten base material for 20 seconds, pulling it out, flattening it with a 10-70 mesh roller, cooling and forming it, and obtaining a darkening clothing protection sheet.

[0038] Example 2

[0039] A depth-enhancing clothing sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:1; in terms of weight parts, the base material comprises: 80 parts of silicone oil, 20 parts of fatty amide ethoxy quaternary ammonium salt, 0.1 parts of fragrance, and 5 parts of kaolin.

[0040] Example 3

[0041] A depth-enhancing garment sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:10; in parts by weight, the base material comprises: 20 parts of an acrylate polymer, 5 parts of a fatty acid imidazoline quaternary ammonium salt, 50 parts of a fragrance, and 30 parts of clay.

[0042] Example 4

[0043] A depth-enhancing clothing sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:6; in terms of weight parts, the base material comprises: 40 parts of modified silicone oil, 15 parts of fatty acid ester quaternary ammonium salt, 30 parts of fragrance, and 10 parts of clay.

[0044] It should be noted that the preparation method of the depth-enhancing clothing protection sheet described in Examples 2-4 is the same as that in Example 1.

[0045] Comparative Example 1

[0046] A clothing protection sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:6; in terms of weight parts, the base material comprises: 55 parts of fatty acid ester quaternary ammonium salt, 30 parts of fragrance, and 10 parts of kaolin.

[0047] Comparative Example 2

[0048] A clothing protection sheet comprises a non-woven fabric sheet-shaped carrier sheet and a base material attached to the surface of the sheet-shaped carrier sheet, wherein the weight ratio of the carrier sheet to the base material is 1:6; in terms of weight parts, the base material comprises: 40 parts of modified silicone oil, 15 parts of fatty acid amide acetate, 30 parts of fragrance, and 10 parts of kaolin.

[0049] Comparative Example 3

[0050] A clothing protection sheet comprises a non-woven fabric sheet-shaped carrier and modified silicone oil attached to the carrier, wherein the weight ratio of the carrier to the modified silicone oil is 1:6.

[0051] Performance Testing

[0052] Fluffiness: Run the self-cleaning mode and clean the washing machine until there is no foam. Put a new towel into the washing machine (Haier XQS100-BZ368Z), do not add detergent, wash the towel surface in the standard mode to remove the floating hair, and dry it naturally. Adjust the washing machine to the standard mode, and set the parameters as follows:

[0053] Water level: 2 gears (29L);

[0054] Soaking: 30min;

[0055] Washing: 25min;

[0056] Rinse: 1 time;

[0057] Dehydration: 4 minutes

[0058] After the parameters are set, put 12 towels in the washing machine, add 30g of standard laundry detergent into the washing machine trough, close the lid, start the washing program, and wait for the program to end, which is recorded as a washing process. After washing, take out the towels and put them in the dryer. The drying temperature of the drying program is 90°C and the drying time is 60min. Put the clothing protection sheets prepared in Examples 1-4 and Comparative Examples 1-3 on the towels in batches, start the program, and count as 1 process. According to the above washing and drying process, repeat a total of 5 times. After drying, the towels are folded horizontally and then vertically into a square shape, and then the folded square towels are stacked together to test the overall height to judge the fluffiness of the towels. In addition, 12 towels are used as control samples, washed and dried according to the above procedures, and no reagents are added during drying.

[0059] Antistatic coefficient, darkening rate and softness index: Referring to the above fluffiness method, replace 12 towels with 6 black polyester chiffon clothes, repeat 5 times, and test the antistatic index of the clothes after drying according to QB / T 4535; then use a colorimeter to measure the K / S value of the fabric after moisture conditioning according to the method specified in GB / T 6688. Finally, six experienced hand feel assessors were recruited to conduct softness tests, with 10 points as the full score, and the feel of the seven groups of experimental clothing were evaluated.

[0060] The specific test results are shown in Table 1.

[0061]

[0062]

[0063] As shown in Table 1, the deepening clothing sheets described in Examples 1-4 have a good deepening effect, with a deepening rate of more than 20% for the color of clothing, and can also improve the fluffiness, softness and antistatic properties of the fabric. However, the deepening rate of Comparative Example 1 is 0, and it does not have a deepening effect, because no deepening agent is added to its base material; although Comparative Example 2 can make the clothing fluffy, soft and deepened, it is worse than Example 4, mainly because the softener used is not a quaternary ammonium salt surfactant, so the opening effect on the modified silicone oil molecular chain is not obvious, resulting in the inability to play a good deepening effect of the modified silicone oil; although Comparative Example 3 has a certain deepening effect, when the amount of modified silicone oil added is large, the deepening effect is not significant, which shows that in the absence of a quaternary ammonium salt surfactant, the molecular chain of the modified silicone oil is difficult to open, resulting in its inability to play a normal deepening effect.

[0064] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A garment-depth enhancing sheet, comprising a carrier sheet and a base material, characterized in that: In terms of weight, the base material includes: 20 to 80 parts of a darkening agent and 5 to 20 parts of a quaternary ammonium salt surfactant, wherein the darkening agent is selected from one or a combination of silicone oil, modified silicone oil, and acrylate polymer; the quaternary ammonium salt surfactant can act on the darkening agent under stirring and heating conditions to open the long chains of the darkening agent molecules.

2. The depth-enhancing garment protection sheet according to claim 1, characterized in that: The quaternary ammonium salt surfactant is selected from one or more combinations of fatty acid amide ethoxy quaternary ammonium salt, fatty acid imidazoline quaternary ammonium salt, and fatty acid ester quaternary ammonium salt.

3. The depth-enhancing garment protection sheet according to claim 1, characterized in that: The carrier sheet is a sheet prepared from one or more of modified starch, modified cellulose or hemicellulose, and modified lignin.

4. The depth-enhancing garment protection sheet according to claim 3, characterized in that: The weight ratio of the carrier sheet to the base material is 1:(1-10).

5. The depth-enhancing garment protection sheet according to claim 1, characterized in that: The base also includes fragrance and fragrance carrier.

6. The depth-enhancing garment protection sheet according to claim 5, characterized in that: The perfume carrier is kaolin or clay.

7. The depth-enhancing garment protection sheet according to claim 5, characterized in that: The base material comprises 0.1 to 50 parts of fragrance and 5 to 30 parts of fragrance carrier by weight.

8. The method for preparing the depth-enhancing garment protection sheet according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: taking a darkening agent, heating it to make it melt; adding a quaternary ammonium salt surfactant to the melted darkening agent, stirring and mixing; then adding a fragrance carrier, stirring and mixing; adjusting the material body temperature to 50-70°C, adding fragrance, stirring evenly, and obtaining a molten base material; dipping a cut carrier sheet into the molten base material for 10-30 seconds, pulling it out, flattening it with a 10-70 mesh roller, cooling and forming it, and obtaining a darkening clothing protection sheet.

9. A method for using a garment-depth enhancing sheet, characterized in that: The darkening clothing protecting sheet is the darkening clothing protecting sheet as described in any one of claims 1 to 7, and the method of use is to add the darkening clothing protecting sheet in a clothes drying process to make the clothes bright in color.

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