Decontamination wet tissue composition with oily and water-based stain removal effect and preparation process of decontamination wet tissue composition

Abstract

The invention provides a decontamination wet tissue composition with an oily and water-based stain removal effect and a preparation process of the decontamination wet tissue composition, and belongs to the technical field of wet tissue preparation. The preparation process comprises the following steps: preparing cyclodextrin modified amylase; preparing a cyclodextrin modified amylase microcapsule; preparing the citrus terpene-polyglycerol ester composite sustained-release particles; and preparing the decontamination wet tissue composition. According to the invention, the cyclodextrin modified amylase microcapsules and the citrus terpene-polyglycerol ester composite slow-release particles are added into the decontamination wet tissue composition, so that the decontamination wet tissue can more effectively remove various oily and water-based stains.

Description

Technical Field

[0001] The present invention relates to the technical field of wet wipe preparation, and particularly relates to a decontamination wet wipe composition having oil-based and water-based stain removal effects and a preparation process thereof. Background Art

[0002] Oil stains, engine oil stains, etc., due to their hydrophobicity, are difficult to be effectively removed by ordinary water-based cleaners. And water-based stains, such as fruit juice stains, tea stains, etc., although can be wetted by water to a certain extent, will also leave traces that are difficult to eliminate on some material surfaces.

[0003] Traditional cleaning methods, such as using detergents like washing powder and dishwashing liquid to deal with stains, have many inconveniences. Washing powder requires a large amount of water for dissolution and rinsing, and the targeted treatment effect for local stains is not good; when using dishwashing liquid to clean large-area stains, the operation is cumbersome, and it is difficult to ensure thorough cleaning. The residual dishwashing liquid may pose potential hazards to human health and the environment. In addition, for some scenarios where immediate cleaning is required, such as when clothes are stained during dining out, traditional cleaning products cannot meet the requirements of convenient and efficient cleaning.

[0004] With the acceleration of people's life rhythm and the increasing requirement for cleaning convenience, developing a cleaning product that can effectively remove both oil-based and water-based stains, is easy to use and environmentally friendly has become an urgent task. As a portable and easy-to-use cleaning product, if the decontamination wet wipe can have the dual stain removal effects on oil-based and water-based stains, it will greatly meet the cleaning needs of consumers in different scenarios and has a broad market prospect. However, most of the decontamination wet wipes on the market at present can only target a single type of stain and are difficult to take into account the efficient removal of both oil-based and water-based stains. Therefore, researching a decontamination wet wipe composition having oil-based and water-based stain removal effects and a preparation process thereof has important practical significance. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a decontamination wet wipe composition having oil-based and water-based stain removal effects and a preparation process thereof.

[0006] A preparation process of a decontamination wet wipe composition having oil-based and water-based stain removal effects includes the following steps:

[0007] S1: Preparation of cyclodextrin-modified amylase

[0008] Activating cyclodextrin with EDC and NHS, and then mixing amylase with the activated cyclodextrin and adding glycine, reacting to prepare cyclodextrin-modified amylase;

[0009] S2: Preparation of cyclodextrin-modified amylase microcapsules

[0010] Sodium alginate and chitosan are used to double - coat the cyclodextrin - modified amylase;

[0011] S3: Preparation of citrus terpene - polyglycerol ester composite sustained - release particles

[0012] The citrus terpene extract and polyglycerol ester are mixed to prepare a self - assembled micelle solution, and then ultrasonically mixed with the mesoporous silica nanosphere dispersion liquid to prepare citrus terpene - polyglycerol ester composite sustained - release particles;

[0013] S4: Preparation of the decontamination wet wipe composition

[0014] Sodium cocoyl glutamate, polyglycerol fatty acid ester and alkyl glycoside are mixed, and then cyclodextrin - modified amylase microcapsules, citrus terpene - polyglycerol ester composite sustained - release particles, citric acid, sodium citrate, bactericide, defoaming and anti - wrinkle agent are added. After mixing, the non - woven fabric is impregnated to obtain the decontamination wet wipe composition.

[0015] Furthermore, the preparation of the cyclodextrin - modified amylase in step S1 specifically includes the following steps:

[0016] S1.1: Dissolve 10 - 12 parts by weight of cyclodextrin in 100 - 120 parts by weight of phosphate buffer solution with a pH of 7, magnetically stir and mix at 30 - 33 °C and 300 - 400 r / min for 20 - 30 min. Then add 0.5 - 0.8 parts by weight of EDC and 0.2 - 0.3 parts by weight of NHS, and activate at room temperature for 20 - 30 min to obtain an activated cyclodextrin solution;

[0017] S1.2: Under a nitrogen atmosphere, add 5 - 8 parts by weight of amylase to the activated cyclodextrin solution, and then magnetically stir and mix at 23 - 27 °C and 200 - 300 r / min for 5 - 6 h. During stirring, maintain the pH at neutral. After the reaction is completed, add 10 - 12 parts by weight of 0.1 M glycine solution and stir for 15 - 20 min to obtain a reaction solution;

[0018] S1.3: Transfer the reaction solution to a dialysis bag, dialyze with ultrapure water at 4 - 5 °C for 48 - 50 h, change the water every 6 - 7 h, and the dialyzed solution is freeze - dried to obtain the cyclodextrin - modified amylase.

[0019] Furthermore, the preparation of the cyclodextrin - modified amylase microcapsules in step S2 specifically includes the following steps:

[0020] S2.1: Dissolve sodium alginate in 100 - 120 parts by weight of ultrapure water, and then stir and mix at 40 - 50 °C for 1 - 2 h to prepare a 2 - 3 wt% sodium alginate solution. Then add 1 - 2 parts by weight of cyclodextrin - modified amylase and continuously stir for 30 - 50 min to form a mixed solution;

[0021] S2.2: Add chitosan into 100 - 120 parts by weight of glacial acetic acid solution with a mass fraction of 1 - 2%, stir and mix to obtain a chitosan acetic acid solution with a concentration of 0.6 - 0.8 wt%. Then add 1.5 - 2 parts by weight of calcium chloride, stir and mix in a magnetic stirrer for 20 - 30 min. Then adjust the pH to 5.3 - 5.4 with a sodium hydroxide solution with a concentration of 10 - 12%, and stir at room temperature for 20 - 30 min to obtain a mixed system;

[0022] S2.3: Slowly drip the mixed solution into the stirred mixed system with a 5 mL syringe, then continue to stir and mix for 20 - 30 min, then place it in a refrigerator at 4 - 5 °C for curing. Subsequently, wash it repeatedly with ultrapure water for 2 - 3 times, and finally pre-freeze it in a refrigerator at -20 - -22 °C for 20 - 22 h, and finally perform freeze-drying for 24 - 28 h to obtain cyclodextrin-modified amylase microcapsules.

[0023] Further, the preparation of the citrus terpene-polyglycerol ester composite sustained-release particles in step S3 specifically includes the following steps:

[0024] S3.1: Select fresh citrus peels, remove the residual pulp, chop and grind them into powder particles with a particle size of 2 - 3 mm. Place the powder particles in a distillation device, add deionized water, control the temperature at 100 - 105 °C, and perform steam distillation for 2 - 4 h to collect the distillate;

[0025] S3.2: Extract the distillate 3 - 5 times with an equal volume of ethyl acetate, then combine the organic phases, add an equal weight of anhydrous sodium sulfate to the organic phases for drying, then filter and perform vacuum distillation to obtain a citrus terpene extract;

[0026] S3.3: After mixing the citrus terpene extract with polyglycerol ester, add 3 - 5 parts by weight of the mixture to 21 - 27 parts by weight of an 80 wt% ethanol aqueous solution, stir at 40 - 50 °C and 500 - 600 r / min for 2 - 3 h to form a self-assembled micelle solution. Then disperse 15 - 18 parts by weight of mesoporous silica nanospheres with a pore size of 10 - 15 nm in 30 - 35 parts by weight of ethanol to obtain a mesoporous silica nanosphere dispersion;

[0027] S3.4: Add 4 - 5 parts by weight of the mesoporous silica nanosphere dispersion to 7 - 8 parts by weight of the self-assembled micelle solution, ultrasonically mix for 30 - 40 min, then perform ultrafiltration, then wash it 2 - 3 times with deionized water and ethanol, and finally perform vacuum drying to obtain citrus terpene-polyglycerol ester composite sustained-release particles.

[0028] Further, the preparation of the decontamination wet wipe composition in step S4 specifically includes the following steps:

[0029] S4.1: Add 4 - 5 parts by weight of sodium cocoyl glutamate, 2 - 4 parts by weight of polyglycerol fatty acid ester, and 3 - 7 parts by weight of alkyl glycoside to 100 - 120 parts by weight of deionized water at 50 - 60 °C and stir for 20 - 30 min to obtain a composite solution;

[0030] S4.2: Cool the composite solution to 23 - 25 °C, then add 1 - 2 parts by weight of cyclodextrin - modified amylase microcapsules and 2 - 3 parts by weight of citrus terpene - polyglycerol ester composite sustained - release particles, add 0.3 - 0.5 parts by weight of citric acid and 0.5 - 0.8 parts by weight of sodium citrate, stir, and then add 0.2 - 0.3 parts by weight of a bactericide and 0.3 - 0.5 parts by weight of an antifoaming and anti - wrinkle agent, and stir and mix for 20 - 30 min to obtain a solution composition;

[0031] S4.3: Immerse the solution composition in non - woven fabric and seal - pack it to obtain a decontamination wet - wipe composition.

[0032] Further, in step S3.1, the mass ratio of citrus peel to deionized water is 1:4 - 5.

[0033] Further, in step S3.3, the citrus terpene extract and polyglycerol ester are mixed at a mass ratio of 1:5 - 8.

[0034] Further, in step S4.2, the bactericide is didecyldimethylammonium chloride.

[0035] Further, in step S4.2, the antifoaming and anti - wrinkle agent is quaternary carbon polydimethylsiloxane.

[0036] A decontamination wet - wipe composition having the efficacy of removing oily and aqueous stains, which is prepared by the preparation process of a decontamination wet - wipe composition having the efficacy of removing oily and aqueous stains described in any one of the above.

[0037] Compared with the prior art, the present invention has at least the following beneficial effects:

[0038] 1. The present invention forms a stable covalent bond between cyclodextrin molecules and amylase through EDC / NHS cross-linking technology to construct a "molecular armor" structure, thereby improving the thermal stability of the enzyme. The sodium alginate-chitosan polyelectrolyte microcapsules form a physical barrier to prevent enzyme inactivation. Cyclodextrin has a unique ring structure with a hydrophobic cavity inside that can include oily substances. The cyclodextrin-modified amylase microcapsules can utilize this property of cyclodextrin to include and adsorb oily stains, and then combine with the hydrolysis of amylase to decompose the oily stains into small molecules, thereby being more effective. The invention can effectively remove oily stains, such as grease, cooking oil stains, etc. Amylase itself has a good decomposition effect on water-based stains such as starch. When cyclodextrin-modified amylase microcapsules come into contact with water-based stains, amylase can quickly act on the starch components in the stains and hydrolyze them into soluble small-molecule sugars, making it easier for the stains to be detached from the surface of the object, thereby achieving the purpose of removing water-based stains, such as removing starch stains in food residues. Therefore, cyclodextrin-modified amylase microcapsules are added to the decontamination wipes composition, so that the decontamination wipes can more effectively remove various oily and water-based stains.

[0039] 2. The citrus terpene in the present invention is a natural organic solvent, which has good solubility for oily substances such as grease, and can penetrate into the oily stains to dissolve and disperse them. Polyglycerol esters have excellent emulsifying properties and can emulsify the mixed system formed by citrus terpenes and oily stains in water to form a stable emulsion, so that the oily stains can be washed away by water, achieving the effect of removing oily stains. The combination of the two enhances the solubility and emulsification ability of oily stains. Compared with the use of citrus terpenes or polyglycerol esters alone, it can more effectively remove oily stains. The composite slow-release particles can load citrus terpenes and polyglycerol esters therein to achieve slow release, which can not only prolong the contact time between the active ingredients and the oily stains and improve the decontamination effect, but also reduce the volatilization loss of volatile components such as citrus terpenes during storage and use, so that the decontamination wipes can maintain the ability to remove oily stains for a longer period of time. In addition, polyglycerol esters have certain hydrophilicity and surface activity. When removing water-based stains, it can reduce the surface tension of water, make water more easily penetrate into the stains, help dissolve and disperse the water-soluble components in the water-based stains, such as salts, sugars, etc., thereby assisting in the removal of water-based stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0041] Figure 1 The present invention is a flow chart of the preparation process of a decontamination wet wipe composition with oily and aqueous stain removal effects used in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The preparation process of a decontamination wet wipe composition with oil-based and water-based stain removal effects provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0043] Example 1

[0044] The preparation process of a decontamination wet wipe composition with oil-based and water-based stain removal effects is as Figure 1 shown, and includes the following steps:

[0045] S1: Preparation of cyclodextrin-modified amylase

[0046] S1.1: Dissolve 10 parts by weight of cyclodextrin in 100 parts by weight of phosphate buffer solution with a pH of 7, magnetically stir and mix at 30 °C and 300 r / min for 20 min, then add 0.5 part by weight of EDC and 0.2 part by weight of NHS, and activate at room temperature for 20 min to obtain an activated cyclodextrin solution;

[0047] S1.2: Under a nitrogen atmosphere, add 5 parts by weight of amylase to the activated cyclodextrin solution, then magnetically stir and mix at 23 °C and 200 r / min for 5 h, maintain the pH at neutral during stirring, after the reaction is completed, add 10 parts by weight of 0.1 M glycine solution and stir for 15 min to obtain a reaction solution;

[0048] S1.3: Transfer the reaction solution to a dialysis bag, dialyze with ultrapure water at 4 °C for 48 h, change the water every 6 h, and freeze-dry the dialyzed solution to obtain cyclodextrin-modified amylase;

[0049] S2: Preparation of cyclodextrin-modified amylase microcapsules

[0050] S2.1: Dissolve sodium alginate in 100 parts by weight of ultrapure water, then stir and mix at 40 °C for 1 h to prepare a 2 wt% sodium alginate solution, then add 1 part by weight of cyclodextrin-modified amylase and continuously stir for 30 min to form a mixed solution;

[0051] S2.2: Add chitosan to 100 parts by weight of a 1% acetic acid solution by mass, stir and mix to obtain a 0.6 wt% chitosan acetic acid solution, then add 1.5 parts by weight of calcium chloride, stir and mix in a magnetic stirrer for 20 min, then adjust the pH to 5.3 with a 10% sodium hydroxide solution and stir at room temperature for 20 min to obtain a mixed system;

[0052] S2.3: Use a 5 mL syringe to slowly and evenly drip the mixed solution into the stirred mixed system. Then continue to stir and mix for 20 min, and then place it in a 4 °C refrigerator for curing. Subsequently, wash it repeatedly with ultrapure water twice, and finally pre-freeze it in a -20 °C refrigerator for 20 h. Finally, perform freeze-drying for 24 h to obtain cyclodextrin-modified amylase microcapsules;

[0053] S3: Preparation of citrus terpene-polyglycerol ester composite sustained-release particles

[0054] S3.1: Select fresh citrus peels, remove the remaining pulp, chop and grind them into powder particles with a particle size of 2 mm. Place the powder particles in a distillation device, add deionized water, and the mass ratio of citrus peel to deionized water is 1:4. Control the temperature at 100 °C and perform steam distillation for 2 h to collect the distillate;

[0055] S3.2: Extract the distillate 3 times with an equal volume of ethyl acetate. Then combine the organic phases, add an equal weight portion of anhydrous sodium sulfate to the organic phases for drying, and then filter and perform vacuum distillation to obtain citrus terpene extract;

[0056] S3.3: After mixing the citrus terpene extract and polyglycerol ester in a mass ratio of 1:5, add 3 parts by weight of the mixture to 21 parts by weight of an 80 wt% ethanol aqueous solution, and stir at 40 °C and 500 r / min for 2 h to form a self-assembled micelle solution. Then disperse 15 parts by weight of mesoporous silica nanospheres with a pore size of 10 nm in 30 parts by weight of ethanol to obtain a mesoporous silica nanosphere dispersion;

[0057] S3.4: Add 4 parts by weight of the mesoporous silica nanosphere dispersion to 7 parts by weight of the self-assembled micelle solution, ultrasonically mix for 30 min, then perform ultrafiltration, and then wash it twice with deionized water and ethanol. Finally, perform vacuum drying to obtain citrus terpene-polyglycerol ester composite sustained-release particles;

[0058] S4: Preparation of a decontamination wet wipe composition

[0059] S4.1: Add 4 parts by weight of sodium cocoyl glutamate, 2 parts by weight of polyglycerol fatty acid ester, and 3 parts by weight of alkyl glycoside to 100 parts by weight of deionized water at 50 °C and stir for 20 min to obtain a composite solution;

[0060] S4.2: Cool the composite solution to 23 °C, and then add 1 part by weight of cyclodextrin-modified amylase microcapsules and 2 parts by weight of citrus terpene-polyglycerol ester composite sustained-release particles. Add 0.3 part by weight of citric acid and 0.5 part by weight of sodium citrate, and after stirring, add 0.2 part by weight of a bactericide and 0.3 part by weight of an antifoaming and anti-wrinkle agent, and stir and mix for 20 min to obtain a solution composition;

[0061] S4.3: Immerse the solution composition in non-woven fabric, seal and package to obtain the decontamination wet wipe composition.

[0062] Example 2

[0063] A preparation process of a decontamination wet wipe composition with oil-based and water-based stain removal effects is as Figure 1 shown, including the following steps:

[0064] S1: Preparation of cyclodextrin-modified amylase

[0065] S1.1: Dissolve 10 parts by weight of cyclodextrin in 100 parts by weight of phosphate buffer solution with a pH of 7, magnetically stir and mix at 33 °C and 400 r / min for 30 min, then add 0.5 parts by weight of EDC and 0.2 parts by weight of NHS, and activate at room temperature for 30 min to obtain an activated cyclodextrin solution;

[0066] S1.2: Under a nitrogen atmosphere, add 5 parts by weight of amylase to the activated cyclodextrin solution, then magnetically stir and mix at 27 °C and 300 r / min for 6 h, maintain the pH at neutral during stirring, after the reaction is completed, add 10 parts by weight of 0.1 M glycine solution and stir for 20 min to obtain a reaction solution;

[0067] S1.3: Transfer the reaction solution to a dialysis bag, dialyze with ultrapure water at 5 °C for 50 h, change the water every 7 h, and after dialysis, the solution is freeze-dried to obtain cyclodextrin-modified amylase;

[0068] S2: Preparation of cyclodextrin-modified amylase microcapsules

[0069] S2.1: Dissolve sodium alginate in 100 parts by weight of ultrapure water, then stir and mix at 50 °C for 2 h to prepare a 2 wt% sodium alginate solution, then add 1 part by weight of cyclodextrin-modified amylase and continuously stir for 50 min to form a mixed solution;

[0070] S2.2: Add chitosan to 100 parts by weight of a 1% acetic acid solution by mass, stir and mix to obtain a 0.6 wt% chitosan acetic acid solution, then add 1.5 parts by weight of calcium chloride, stir and mix in a magnetic stirrer for 30 min, then adjust the pH to 5.3 with a 10% sodium hydroxide solution, and stir at room temperature for 30 min to obtain a mixed system;

[0071] S2.3: Slowly drip the mixed solution into the stirred mixed system with a 5 mL syringe, then continue to stir and mix for 30 min, then place it in a 5 °C refrigerator for curing, then wash it repeatedly with ultrapure water 3 times, finally pre-freeze it in a -22 °C refrigerator for 22 h, and finally freeze-dry it for 28 h to obtain cyclodextrin-modified amylase microcapsules;

[0072] S3: Preparation of Citrus Terpene-Polyglycerol Ester Composite Sustained Release Granules

[0073] S3.1: Select fresh citrus peels, remove the remaining pulp, chop and grind them into powder particles with a particle size of 2 mm. Place the powder particles in a distillation device, add deionized water, and the mass ratio of citrus peel to deionized water is 1:4. Control the temperature at 105 °C and carry out steam distillation for 4 h to collect the distillate;

[0074] S3.2: Extract the distillate 5 times with an equal volume of ethyl acetate. Then combine the organic phases, add an equal weight portion of anhydrous sodium sulfate to the organic phases for drying, then filter and carry out vacuum distillation to obtain the citrus terpene extract;

[0075] S3.3: After mixing the citrus terpene extract and polyglycerol ester in a mass ratio of 1:5, add 3 parts by weight of the mixture to 21 parts by weight of an 80 wt% ethanol aqueous solution, stir at 50 °C and 600 r / min for 3 h to form a self-assembled micelle solution. Then disperse 15 parts by weight of mesoporous silica nanospheres with a pore size of 10 nm in 30 parts by weight of ethanol to obtain a mesoporous silica nanosphere dispersion;

[0076] S3.4: Add 4 parts by weight of the mesoporous silica nanosphere dispersion to 7 parts by weight of the self-assembled micelle solution, ultrasonically mix for 40 min, then carry out ultrafiltration, and then wash 3 times with deionized water and ethanol. Finally, carry out vacuum drying to obtain the citrus terpene-polyglycerol ester composite sustained release granules;

[0077] S4: Preparation of the Decontamination Wet Wipe Composition

[0078] S4.1: Add 4 parts by weight of sodium cocoyl glutamate, 2 parts by weight of polyglycerol fatty acid ester, and 3 parts by weight of alkyl glycoside to 100 parts by weight of deionized water at 60 °C and stir for 30 min to obtain a composite solution;

[0079] S4.2: Cool the composite solution to 25 °C, then add 1 part by weight of cyclodextrin-modified amylase microcapsules and 2 parts by weight of citrus terpene-polyglycerol ester composite sustained release granules, add 0.3 part by weight of citric acid and 0.5 part by weight of sodium citrate, stir and then add 0.2 part by weight of a bactericide and 0.3 part by weight of an antifoaming and anti-wrinkle agent, and stir and mix for 30 min to obtain a solution composition;

[0080] S4.3: Immerse the solution composition in non-woven fabric and seal and package it to obtain the decontamination wet wipe composition.

[0081] Example 3

[0082] A preparation process of a decontamination wet wipe composition with the efficacy of removing oily and aqueous stains, as Figure 1 shown, includes the following steps:

[0083] S1: Preparation of Cyclodextrin-Modified Amylase

[0084] S1.1: Dissolve 12 parts by weight of cyclodextrin in 120 parts by weight of phosphate buffer solution with a pH of 7. Magnetically stir and mix at 30 °C and 300 r / min for 20 min. Then add 0.8 parts by weight of EDC and 0.3 parts by weight of NHS, and activate at room temperature for 20 min to obtain an activated cyclodextrin solution;

[0085] S1.2: Under a nitrogen atmosphere, add 8 parts by weight of amylase to the activated cyclodextrin solution. Then magnetically stir and mix at 23 °C and 200 r / min for 5 h, maintaining the pH at neutral during stirring. After the reaction is completed, add 12 parts by weight of 0.1 M glycine solution and stir for 15 min to obtain a reaction solution;

[0086] S1.3: Transfer the reaction solution to a dialysis bag and dialyze with ultrapure water at 4 °C for 48 h, changing the water every 6 h. After dialysis, the solution is freeze-dried to obtain cyclodextrin-modified amylase;

[0087] S2: Preparation of Cyclodextrin-Modified Amylase Microcapsules

[0088] S2.1: Dissolve sodium alginate in 120 parts by weight of ultrapure water, and then stir and mix at 40 °C for 1 h to prepare a 3 wt% sodium alginate solution. Then add 2 parts by weight of cyclodextrin-modified amylase and continuously stir for 30 min to form a mixed solution;

[0089] S2.2: Add chitosan to 120 parts by weight of 2% glacial acetic acid solution, stir and mix to obtain a 0.8 wt% chitosan acetic acid solution. Then add 2 parts by weight of calcium chloride, stir and mix in a magnetic stirrer for 20 min, and then adjust the pH to 5.4 with 12% sodium hydroxide solution and stir at room temperature for 20 min to obtain a mixed system;

[0090] S2.3: Slowly drip the mixed solution into the stirring mixed system with a 5 mL syringe, then continue to stir and mix for 20 min, then place it in a 4 °C refrigerator for curing, then wash it repeatedly with ultrapure water 2 times, finally pre-freeze it in a -20 °C refrigerator for 20 h, and finally freeze-dry it for 24 h to obtain cyclodextrin-modified amylase microcapsules;

[0091] S3: Preparation of Citrus Terpene-Polyglycerol Ester Composite Sustained-Release Particles

[0092] S3.1: Select fresh citrus peels, remove the remaining pulp, chop and grind them into powder particles with a particle size of 3 mm. Place the powder particles in a distillation device, add deionized water, with the mass ratio of citrus peels to deionized water being 1:5. Control the temperature at 100 °C and carry out steam distillation for 2 h, then collect the distillate;

[0093] S3.2: Extract the distillate 3 times with an equal volume of ethyl acetate. Then combine the organic phases, add an equal weight portion of anhydrous sodium sulfate to the organic phases for drying, then filter and carry out vacuum distillation to obtain citrus terpene extract;

[0094] S3.3: After mixing the citrus terpene extract and polyglycerol ester in a mass ratio of 1:8, add 5 parts by weight of the mixture to 27 parts by weight of an 80 wt% ethanol aqueous solution. Stir at 40 °C and 500 r / min for 2 h to form a self-assembled micelle solution. Then disperse 18 parts by weight of mesoporous silica nanospheres with a pore size of 15 nm in 35 parts by weight of ethanol to obtain a mesoporous silica nanosphere dispersion;

[0095] S3.4: Add 5 parts by weight of the mesoporous silica nanosphere dispersion to 8 parts by weight of the self-assembled micelle solution, ultrasonically mix for 30 min, then carry out ultrafiltration, and then wash 2 times with deionized water and ethanol. Finally, carry out vacuum drying to obtain citrus terpene-polyglycerol ester composite sustained-release particles;

[0096] S4: Preparation of the decontamination wet wipe composition

[0097] S4.1: Add 5 parts by weight of sodium cocoyl glutamate, 4 parts by weight of polyglycerol fatty acid ester, and 7 parts by weight of alkyl glycoside to 120 parts by weight of deionized water at 50 °C and stir for 20 min to obtain a composite solution;

[0098] S4.2: Cool the composite solution to 23 °C, then add 2 parts by weight of cyclodextrin-modified amylase microcapsules and 3 parts by weight of citrus terpene-polyglycerol ester composite sustained-release particles, add 0.5 part by weight of citric acid and 0.8 part by weight of sodium citrate, stir and then add 0.3 part by weight of a bactericide and 0.5 part by weight of an antifoaming and anti-wrinkle agent, and stir and mix for 20 min to obtain a solution composition;

[0099] S4.3: Immerse the solution composition in non-woven fabric and seal and package it to obtain the decontamination wet wipe composition.

[0100] Comparative Example 1

[0101] Compared with Example 1, the difference in Comparative Example 1 is that in Comparative Example 1, the cyclodextrin-modified amylase microcapsules in Steps S1 - S2 and S4.2 are removed, and the remaining steps remain unchanged to prepare the decontamination wet wipe composition, denoted as Comparative Example 1.

[0102] Comparative Example 2

[0103] Compared with Example 1, the difference of Comparative Example 2 is that Comparative Example 2 removes steps S3.1-S3.3, replaces the self-assembled micelle solution in step S3.4 with a polyglycerol ester solution, and prepares a decontamination wet wipes composition without changing the other steps, which is recorded as Comparative Example 2.

[0104] Comparative Example 3

[0105] Compared with Example 1, the difference of Comparative Example 3 is that step S3.3 is removed in Comparative Example 3, and the self-assembled micelle solution in step S3.4 is replaced with citrus terpene extract solution, and the remaining steps remain unchanged to prepare the decontamination wet wipes composition, which is recorded as Comparative Example 3.

[0106] The decontamination wet wipe compositions prepared in Examples 1-3 and Comparative Examples 1-3 and commercially available decontamination wet wipes were tested for mixed stains (edible oil, chili oil and soy sauce), oily stains (edible oil) and water-based stains (soy sauce). The test results are shown in Table 1.

[0107] Table 1. Decontamination test results of Examples 1-3 and Comparative Examples 1-3

[0108]

[0109] It can be seen from the data in Table 1 that the decontamination wet wipes composition prepared by the present invention has dual removal effects of oily and aqueous stains, and can well remove mixed oily and aqueous stains. From the data in Comparative Example 1, it can be seen that the addition of cyclodextrin-modified amylase microcapsules in the present invention can make the decontamination wet wipes more effective in removing oily and aqueous stains; from the data in Comparative Examples 2 and 3, it can be seen that the combination of the two enhances the solubility and emulsification ability of oily stains, and can more effectively remove oily stains than using citrus terpenes or polyglycerol esters alone, and the added polyglycerol esters help dissolve and disperse the water-soluble components in aqueous stains, thereby assisting in removing aqueous stains.

[0110] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A process for preparing a decontamination wet wipe composition having the effect of removing oily and aqueous stains, characterized in that: The steps include: S1: Preparation of cyclodextrin-modified amylase Cyclodextrin is activated by using EDC and NHS, and then amylase and activated cyclodextrin are mixed and glycine is added to react to prepare cyclodextrin modified amylase; S2: Preparation of cyclodextrin modified amylase microcapsules Sodium alginate and chitosan were used to double encapsulate cyclodextrin-modified amylase; S3: Preparation of citrus terpene-polyglycerol ester composite sustained-release granules The citrus terpene extract and polyglycerol ester were mixed to prepare a self-assembled micelle solution, which was then ultrasonically mixed with a mesoporous silica nanosphere dispersion to prepare citrus terpene-polyglycerol ester composite sustained-release particles; S4: Preparation of Decontamination Wipes Composition Sodium cocoyl glutamate, polyglycerol fatty acid ester and alkyl polyglycoside are mixed, and then cyclodextrin modified amylase microcapsules, citrus terpene-polyglycerol ester composite sustained-release particles, citric acid, sodium citrate, bactericide and defoaming and anti-wrinkle agent are added and mixed, and then non-woven fabric is impregnated to obtain a decontamination wet wipes composition.

2. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 1, characterized in that: Step S1: Preparation of cyclodextrin-modified amylase, specifically comprising the following steps: S1.1: Dissolve 10-12 parts by weight of cyclodextrin in 100-120 parts by weight of phosphate buffer at pH 7, mix with magnetic stirring at 30-33°C and 300-400 r / min for 20-30 min, then add 0.5-0.8 parts by weight of EDC and 0.2-0.3 parts by weight of NHS, and activate at room temperature for 20-30 min to obtain an activated cyclodextrin solution; S1.2: Under a nitrogen atmosphere, 5-8 parts by weight of amylase is added to the activated cyclodextrin solution, and then magnetically stirred and mixed at 23-27°C and 200-300 r / min for 5-6 hours, and the pH is maintained at a neutral level during stirring. After the reaction is completed, 10-12 parts by weight of 0.1 M glycine solution is added and stirred for 15-20 minutes to obtain a reaction solution; S1.3: The reaction solution was transferred to a dialysis bag and dialyzed with ultrapure water at 4-5°C for 48-50 hours, with the water being changed every 6-7 hours. The dialyzed solution was freeze-dried to obtain cyclodextrin-modified amylase.

3. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 2, characterized in that: Step S2: Preparation of cyclodextrin-modified amylase microcapsules, specifically comprising the following steps: S2.1: Sodium alginate is dissolved in 100-120 parts by weight of ultrapure water, and then stirred and mixed at 40-50° C. for 1-2 hours to prepare a 2-3 wt % sodium alginate solution, and then 1-2 parts by weight of cyclodextrin-modified amylase is added, and the mixture is continuously stirred for 30-50 minutes to form a mixed solution; S2.2: Add chitosan to 100-120 parts by weight of a 1-2% glacial acetic acid solution, stir and mix to obtain a 0.6-0.8wt% chitosan acetic acid solution, then add 1.5-2 parts by weight of calcium chloride, stir and mix in a magnetic stirrer for 20-30 minutes, then adjust the pH to 5.3-5.4 with a 10-12% sodium hydroxide solution, stir at room temperature for 20-30 minutes, and obtain a mixed system; S2.3: Use a 5mL syringe to uniformly drip the mixed solution into the stirring mixed system, then continue stirring and mixing for 20-30 minutes, then place in a 4-5℃ refrigerator to solidify, then wash repeatedly with ultrapure water 2-3 times, finally pre-freeze in a -20--22℃ refrigerator for 20-22 hours, and finally freeze-dry for 24-28 hours to obtain cyclodextrin modified amylase microcapsules.

4. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 3, characterized in that: Step S3 is the preparation of citrus terpene-polyglycerol ester composite sustained-release particles, which specifically comprises the following steps: S3.1: Select fresh citrus peel, remove the pulp residue, chop and grind into powder particles with a particle size of 2-3 mm, place the powder particles in a distillation device, add deionized water, control the temperature at 100-105°C, perform steam distillation for 2-4 hours, and collect the distillate; S3.2: extracting the distillate 3-5 times with an equal volume of ethyl acetate, combining the organic phases, adding an equal weight portion of anhydrous sodium sulfate to the organic phases for drying, filtering, and distilling under reduced pressure to obtain a citrus terpene extract; S3.3: After mixing the citrus terpene extract and the polyglycerol ester, 3-5 parts by weight of the mixture are added to 21-27 parts by weight of an 80wt% ethanol aqueous solution, and stirred at 40-50°C and 500-600r / min for 2-3h to form a self-assembled micelle solution, and then 15-18 parts by weight of mesoporous silica nanospheres with a pore size of 10-15nm are dispersed in 30-35 parts by weight of ethanol to obtain a mesoporous silica nanosphere dispersion; S3.4: Add 4-5 parts by weight of mesoporous silica nanosphere dispersion to 7-8 parts by weight of self-assembled micelle solution, ultrasonically mix for 30-40 minutes, then ultrafilter, then wash with deionized water and ethanol 2-3 times, and finally vacuum dry to obtain citrus terpene-polyglycerol ester composite sustained-release particles.

5. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 4, characterized in that: Step S4 is the preparation of the decontamination wet wipes composition, which specifically comprises the following steps: S4.1: 4-5 parts by weight of sodium cocoyl glutamate, 2-4 parts by weight of polyglycerol fatty acid ester, and 3-7 parts by weight of alkyl polyglycoside are added to 100-120 parts by weight of deionized water at 50-60° C. and stirred for 20-30 minutes to obtain a composite solution; S4.2: Cool the composite solution to 23-25° C., then add 1-2 parts by weight of cyclodextrin modified amylase microcapsules and 2-3 parts by weight of citrus terpene-polyglycerol ester composite sustained-release particles, add 0.3-0.5 parts by weight of citric acid and 0.5-0.8 parts by weight of sodium citrate, stir, add 0.2-0.3 parts by weight of fungicide and 0.3-0.5 parts by weight of antifoaming and anti-wrinkle agent, stir and mix for 20-30 minutes to obtain a solution composition; S4.3: Impregnate the solution composition into non-woven fabric, seal and package, and obtain a decontamination wet wipes composition.

6. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 4, characterized in that: The mass ratio of citrus peel to deionized water in step S3.1 is 1:4-5.

7. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 4, characterized in that: The citrus terpene extract in step S3.3 is mixed with polyglycerol ester in a mass ratio of 1:5-8.

8. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 5, characterized in that: In step S4.2, the bactericide is didecyldimethylammonium chloride.

9. The preparation process of a decontamination wet wipe composition having oily and aqueous stain removal efficacy according to claim 5, characterized in that: In step S4.2, the defoaming and anti-wrinkle agent is quaternary carbon polydimethylsiloxane.

10. A decontamination wet wipe composition having the effect of removing oily and aqueous stains, characterized in that: The decontamination wet wipe composition is prepared by the preparation process of a decontamination wet wipe composition having oily and aqueous stain removal effects as described in any one of claims 1 to 9.

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