阅读说明：本技术 一种使用后皮肤上无抗菌剂残留的湿巾的制备方法 (Preparation method of wet tissue without antibacterial agent residue on skin after use ) 是由 葛宏伟 侯冬梅 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种使用后皮肤上无抗菌剂残留的湿巾的制备方法,通过将无纺布浸入纳米金属化合物的混合分散溶液中,烘干、清洗、烘干后得到无抗菌剂析出的水刺无纺布,再与乳液配合,将制备好的无纺布加乳液折叠入袋,得到一种使用后皮肤上无抗菌剂残留的湿巾。解决了对敏感肌肤、婴幼儿肌肤均会有不同程度的不适感的问题,因此,提高了湿巾的温和性、安全性,满足市场需求,解决了敏感人群和婴幼儿人群可方便使用湿巾的问题。(The invention discloses a preparation method of a wet tissue without residual antibacterial agent on skin after use, which comprises the steps of immersing non-woven fabrics into mixed dispersion solution of nano metal compounds, drying, cleaning and drying to obtain spunlace non-woven fabrics without antibacterial agent precipitation, matching with emulsion, adding the emulsion into the prepared non-woven fabrics, folding into a bag, and obtaining the wet tissue without residual antibacterial agent on skin after use. The problem that the sensitive skin and the skin of the infants have different degrees of discomfort is solved, so that the mildness and the safety of the wet tissue are improved, the market demand is met, and the problem that the sensitive people and the infants can conveniently use the wet tissue is solved.)

1. A method for preparing wet tissue without residual antibacterial agent on skin after use is characterized in that: the preparation method comprises the following preparation steps:

firstly, immersing spunlace nonwoven fabric into a mixed dispersion solution containing an antibacterial agent;

secondly, taking out the soaked spunlace non-woven fabric for rolling, and then drying for the first time;

thirdly, cleaning the spunlace nonwoven after the first drying;

fourthly, rolling the washed spunlace non-woven fabric through a roller;

fifthly, drying the rolled spunlace nonwoven fabric for the second time;

sixthly, adding the emulsion into the spunlace non-woven fabric dried for the second time, and cutting and packaging;

seventh, the emulsion in the sixth step is sterilized.

2. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the mixed dispersion solution comprises an antibacterial agent, cyclodextrin, glycerol, acetic acid, triethanolamine, organic silicon resin and deionized water.

3. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 2, wherein the method comprises the following steps: the antibacterial agent is one or more of a nano metal zinc compound, a nano metal calcium compound, a nano metal titanium compound and a nano metal zirconium compound.

4. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 2, wherein the method comprises the following steps: under the conditions of 70-95 ℃ and 50-95KHZ ultrasonic frequency, carrying out ultrasonic mixing and dispersion on the other components except the deionized water in the mixed dispersion solution for 90-120 minutes, adding the deionized water into the mixture after ultrasonic mixing and dispersion for fully mixing to obtain a mixed dispersion solution, wherein the weight ratio of the antibacterial agent in the mixed dispersion solution is 5-10%.

5. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the first drying and the second drying are both carried out by adopting a dryer, the temperature range of the first drying is 145-175 ℃, and the temperature range of the second drying is 145-165 ℃.

6. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the cleaning in the third step is a full rinsing treatment with clear water.

7. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the sterilization treatment of the emulsion comprises introducing ozone into the prepared emulsion, keeping the concentration of the ozone at 0.1-0.8mg/L, and sealing and storing for 5-30 min.

8. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the sterilization treatment of the emulsion can also be that the prepared emulsion is put into high-temperature high-pressure steam for sterilization and disinfection.

9. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the process for cutting and packaging in the sixth step comprises a middle-package wet tissue preparation process, a mini-package/single-piece-package wet tissue preparation process and a big-package wet tissue preparation process.

10. The method for preparing a wet wipe without residual antimicrobial agent on skin after use according to claim 1, wherein the method comprises the following steps: the emulsion comprises pure water emulsion, infant hand and mouth emulsion, breast cleaning emulsion, tooth cleaning emulsion, cleaning emulsion and no-clean makeup removing emulsion.

Technical Field

The invention relates to the field of sanitary products, in particular to a wet tissue, and particularly relates to a preparation method of a composite wet tissue without antibacterial agent residue on skin after use.

Background

The wet tissue is a tissue for wiping skin to moisten the skin, and is generally made of non-woven fabrics. In the market, wet tissues used by people generally refer to the technical specifications of cosmetics, one or more preservatives or antibacterial agents or bactericides are added into the wet tissues, and the wet tissues with better antibacterial effect can be additionally added with more antibacterial agents or bactericides in order to achieve higher antibacterial rate or bactericidal rate. When the wet tissue is used, the antibacterial agent or the bactericide is remained on the skin, and particularly, the skin of sensitive skin or the skin of infants has discomfort of different degrees, so that higher requirements on the mildness and the safety of the wet tissue are also provided for consumers.

Therefore, the inventor of the invention aims to invent a preparation method of a wet tissue without antibacterial agent residue on the skin after use and meet market requirements, develops the wet tissue without antibacterial agent residue on the skin during use and solves the problem that the wet tissue can be conveniently used by sensitive people and infant people.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide a method for preparing a wet tissue without antibacterial agent residue on the skin after use.

In order to achieve the above purposes, the invention adopts the technical scheme that: a method for preparing wet tissue without residual antibacterial agent on skin after use,

firstly, immersing spunlace nonwoven fabric into a mixed dispersion solution containing an antibacterial agent;

secondly, taking out the soaked spunlace non-woven fabric for rolling, and drying for the first time;

thirdly, cleaning the spunlace nonwoven after the first drying;

fourthly, rolling the washed spunlace non-woven fabric through a roller;

fifthly, drying the rolled spunlace nonwoven fabric for the second time;

sixthly, adding the emulsion into the spunlace non-woven fabric dried for the second time, mixing, cutting and packaging;

seventh, the emulsion in the sixth step is sterilized.

Preferably, the mixed dispersion solution comprises an antibacterial agent, cyclodextrin, glycerol, acetic acid, triethanolamine, a silicone resin and deionized water. The components except the antibacterial agent can improve the combination of the antibacterial agent and the spunlace non-woven fabric, and simultaneously ensure that the antibacterial agent can be combined on the spunlace non-woven fabric for a long time, thereby achieving and ensuring a long-term good antibacterial effect.

Preferably, the antibacterial agent is one or more of a nano metal zinc compound, a nano metal calcium compound, a nano metal titanium compound and a nano metal zirconium compound. Although a single type of antibacterial agent can also achieve the antibacterial effect, the mixture of multiple antibacterial agents has better antibacterial effect and stronger pertinence to different types of bacteria, for example, because of the difference between gram-negative bacteria and gram-positive bacteria, a single type of antibacterial agent lacks pertinence, and may have better effect on a certain type of bacteria but has poorer effect on another type of bacteria.

Preferably, under the conditions of 70-95 ℃ and 50-95KHZ ultrasonic frequency, the other components except the deionized water in the mixed dispersion solution are subjected to ultrasonic mixing and dispersion for 90-120 minutes, the deionized water is added into the mixture after the ultrasonic mixing and dispersion for full mixing, the obtained solution is the mixed dispersion solution, and the weight ratio of the antibacterial agent in the mixed dispersion solution is 5-10%. And the average grain diameter of the mixture before adding the deionized water is 1-8nm, thus ensuring good antibacterial effect.

Preferably, the first drying and the second drying are both performed by using a dryer, and the temperature range of the first drying is 145-175 ℃, and the temperature range of the second drying is 145-165 ℃.

Preferably, the washing in the third step is a sufficient rinsing treatment with clean water.

Preferably, the sterilization treatment of the emulsion is to introduce ozone into the prepared emulsion, keep the concentration of the ozone at 0.1-0.8mg/L, and store the emulsion for 5-30 minutes in a sealing way.

Preferably, the sterilization treatment of the emulsion can also be to place the finished emulsion product in high-temperature high-pressure steam for sterilization.

Preferably, the process of cutting and packaging in the sixth step includes a middle-package wet tissue preparation process, a mini-package/single-piece-package wet tissue preparation process and a big-package wet tissue preparation process. According to different requirements, different types of cutting and packaging are carried out, and different requirements of the market are met.

Preferably, the lotion comprises pure water lotion, infant hand and mouth lotion, breast cleansing lotion, tooth cleaning lotion, cleansing lotion, leave-on makeup removing lotion, and the like. Different kinds of emulsion are matched with the spunlace non-woven fabric after the second drying, and wet tissues with different kinds and different purposes can be obtained.

The preparation method of the wet tissue without antibacterial agent residue on the skin after use has the advantages that the problem that the skin of sensitive skin and the skin of infants have different degrees of discomfort is solved, so that the mildness and the safety of the wet tissue are improved, the market demand is met, and the problem that the wet tissue can be conveniently used by sensitive people and infant people is solved.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.

In the embodiment, the preparation method of the wet tissue without antibacterial agent residue on the skin after use,

firstly, immersing spunlace nonwoven fabric into a mixed dispersion solution containing an antibacterial agent;

secondly, taking out the soaked spunlace non-woven fabric for rolling, and drying for the first time;

thirdly, cleaning the spunlace nonwoven after the first drying;

fourthly, rolling the washed spunlace non-woven fabric through a roller;

fifthly, drying the rolled spunlace nonwoven fabric for the second time;

sixthly, adding the emulsion into the spunlace non-woven fabric dried for the second time, mixing, cutting and packaging;

seventh, the emulsion in the sixth step is sterilized.

Components of the mixed dispersion solution: comprises an antibacterial agent, cyclodextrin, glycerol, acetic acid, triethanolamine, organic silicon resin and deionized water. The components except the antibacterial agent can improve the combination of the antibacterial agent and the spunlace non-woven fabric, and simultaneously ensure that the antibacterial agent can be remained on the spunlace non-woven fabric for a long time, thereby achieving and ensuring a long-term good antibacterial effect. The antibacterial agent is one or more of a nano metal zinc compound, a nano metal calcium compound, a nano metal titanium compound and a nano metal zirconium compound. Although a single type of antibacterial agent can also achieve the antibacterial effect, the mixture of multiple antibacterial agents has better antibacterial effect and stronger pertinence to different types of bacteria, for example, because of the difference between gram-negative bacteria and gram-positive bacteria, a single type of antibacterial agent lacks pertinence, and may have better effect on a certain type of bacteria but has poorer effect on another type of bacteria. The antibacterial agent or the bactericide or the bacteriostatic agent are different names of the same substance, and the antibacterial agent can also play a role in corrosion prevention, kill microorganisms or inhibit the growth of the microorganisms, thereby achieving the purposes of corrosion prevention and long-term storage.

The preparation method of the mixed dispersion solution comprises the following steps: under the conditions of 70-95 ℃ and 50-95KHZ ultrasonic frequency, carrying out ultrasonic mixing and dispersion on the other components except the deionized water in the mixed dispersion solution for 90-120 minutes, adding the deionized water into the mixture after ultrasonic mixing and dispersion for fully mixing to obtain a mixed dispersion solution, wherein the weight ratio of the antibacterial agent in the mixed dispersion solution is 5-10%. And the average grain diameter of the mixture before adding the deionized water is 1-8nm, thus ensuring good antibacterial effect.

The preparation process comprises two times of rolling, wherein the rolling residual rate of the first rolling is 150-. The calculation formula of the rolling residual rate is as follows:

parameters of the two drying processes: the first drying and the second drying are both carried out by adopting a dryer, the temperature range of the first drying is 145-175 ℃, and the temperature range of the second drying is 145-165 ℃.

Attention points of cleaning: the cleaning in the third step is a full rinsing treatment with clear water.

And (3) sterilizing the emulsion: introducing ozone into the prepared emulsion, keeping the concentration of the ozone at 0.1-0.8mg/L, and sealing and storing for 5-30 min; the sterilization treatment of the emulsion can also be to place the processed finished emulsion in high-temperature high-pressure steam for sterilization and disinfection.

The wet tissue prepared by the method is subjected to performance test:

testing the microorganisms of the wet tissue according to GB 15979-:

and (II) verifying the metal ion precipitation condition of the antibacterial agent on the spunlace nonwoven fabric treated in the fifth step by adopting an ICP-OES test method according to GB/T17593.2-2007 standard:

therefore, the wet tissue has no metal ions separated out.

(III) according to the results of the dissolution test of the antibacterial substance used by the antibacterial non-woven fabric after 1 washing of the antibacterial knitted fabric according to the standardized washing conditions and procedures of the appendix C.3 of FZ/T73023 and 2006:

the following table shows the judgment criteria for the dissolution of the antibacterial substance

Zone width D (mm)	Dissolution of antibacterial substance
		≤1	Non-dissolving out property
Greater than 1 and less than or equal to 5	Micro-dissolution property
		Greater than 5 and less than or equal to 10	Moderate dissolution
＞10	High dissolution property

Therefore, in this test, the antibacterial agent was judged to be non-eluting because the width of the zone of inhibition was less than 1mm, rather than completely eluting (although the zone of inhibition width was 0, it cannot be said that the zone of inhibition was completely absent, and may be less than 1mm, and is not included).

And (IV) testing the antibacterial (bacteriostasis) rate of the spunlace nonwoven fabric by adopting a non-dissolution test standard GB/T20944.3-2008 oscillation method:

therefore, the bacteriostatic rate of the wet tissue meets the standard.

Through the analysis of the four test data, it can be seen that: the wet tissue has high safety performance and can play a role in resisting bacteria, killing bacteria or inhibiting bacteria.

The process for cutting and packaging in the sixth step comprises a middle-package wet tissue preparation process, a mini-package/single-piece-package wet tissue preparation process and a big-package wet tissue preparation process. According to different requirements, different types of cutting and packaging are carried out, and different requirements of the market are met.

1) The preparation process of the tundish wet tissue comprises the following steps: immersing non-woven fabrics into emulsion, automatically folding, extruding and shearing, automatically stacking, bagging, thermally sealing and covering, and boxing.

2) The preparation process of the mini-packaged/single-piece-packaged wet tissue comprises the following steps: automatic folding non-woven fabrics, spraying emulsion, refolding, extruding and shearing, automatic lamination, bagging, heat sealing and capping, and boxing.

3) The preparation process of the large-package wet tissue comprises the following steps: automatically folding non-woven fabrics, stacking into required pieces, adding emulsion into a spray head, shearing and extruding, bagging, thermally sealing and covering, and boxing.

The emulsion comprises pure water emulsion, infant hand and mouth emulsion, breast cleaning emulsion, tooth cleaning emulsion, no-clean makeup removing emulsion and the like. Different kinds of emulsion are matched with the spunlace non-woven fabric after the second drying, and wet tissues with different kinds and different purposes can be obtained.

1. Formula of pure water emulsion and using method thereof

Directly adding deionized water into spunlace nonwoven fabric, cutting and packaging, and sterilizing the packaged wet tissue in high-temperature high-pressure steam to obtain the finished wet tissue. Only deionized water is added, so that the emulsion is safe and environment-friendly, does not cause allergic events, is harmless to human bodies, but possibly lacks pertinence, and therefore, the application range of the pure water emulsion is small.

2. Formula of infant hand and mouth lotion and using method thereof

Serial number	Component name	Percentage content%	Function of
				1	Deionized water	To 100	Solvent(s)
2	Glycerol	5	Moisture-retaining agent
				3	Sucralose	0.01	Taste modifier
4	Citric acid	Proper amount of	pH regulator
				5	Citric acid sodium salt	Proper amount of	pH regulator

1) Respectively preparing 10% solution of citric acid and sodium citrate.

2) Adding glycerol and sucralose into deionized water, and stirring until the glycerol and the sucralose are completely dissolved.

3) Adjusting the pH value to be within the range of 5.0-6.5 by using citric acid and sodium citrate.

4) Introducing 0.3mg/L ozone into the emulsion, sealing and maintaining for 10min to obtain the emulsion.

5) Adding the emulsion directly into wet tissue production equipment to obtain the finished wet tissue.

Wherein, the content of the deionized water is To 100, which means that the rest part is complemented with the deionized water after the calculation of other substances is finished.

3. Formulation of breast cleansing lotion and method of use

Serial number	Component name	Percentage content%	Function of
				1	Deionized water	To 100	Solvent(s)
2	Glycerol	5	Moisture-retaining agent
				3	Honeysuckle flower extract	0.12	Skin conditioning agent
4	Dipropylene glycol	0.5	Moisture-retaining agent
				5	Citric acid	Proper amount of	pH regulator
6	Citric acid sodium salt	Proper amount of	pH regulator

1) Respectively preparing 10% solution of citric acid and sodium citrate.

2) Adding glycerol, flos Lonicerae extract, and dipropylene glycol into deionized water, and stirring.

3) Adjusting the pH value to be within the range of 5.0-6.5 by using citric acid and sodium citrate.

4) Introducing 0.3mg/L ozone into the emulsion, sealing and maintaining for 10min to obtain the emulsion.

5) Directly adding into wet tissue production equipment to obtain the finished wet tissue.

4. Formula of tooth-cleaning wet tissue emulsion and using method thereof

1) Respectively preparing 10% solution of citric acid and sodium citrate.

2) Adding glycerol, xylitol, dipropylene glycol, folium Camelliae sinensis extract, and ethylhexyl glycerol into deionized water, and stirring.

3) Adjusting the pH value to be within the range of 5.0-6.5 by using citric acid and sodium citrate.

4) Introducing 0.3mg/L ozone into the emulsion, sealing and maintaining for 10min to obtain the emulsion.

5) Directly adding into wet tissue production equipment to obtain the finished wet tissue.

5. Formula of cleaning wet tissue emulsion and using method thereof

Serial number	Name (R)	Percentage content%	Function of
				1	Deionized water	To 100	Solvent(s)
2	Glycerol	2	Moisture-retaining agent
				3	Caprylic/capric acid glyceride polyglycerol-10 esters	0.2	Skin-moistening agent
4	Squalane	0.1	Skin-moistening agent
				5	Polyglycerol-10 stearate	0.2	Skin-moistening agent
6	1, 2-hexanediol	0.05	Moisture-retaining agent
				7	Dipropylene glycol	1	Moisture-retaining agent
8	Ethyl hexyl glycerol	0.1	Moisture-retaining agent
				9	Citric acid	Proper amount of	pH regulator
10	Citric acid sodium salt	Proper amount of	pH regulator
				11	EDTA-disodium salt	0.05	Chelating agents
12	Essence	0.05	Aromatic agent

1) Respectively preparing 10% solution of citric acid and sodium citrate.

2) Adding glycerol and EDTA-disodium (disodium ethylene diamine tetraacetate) into deionized water, and stirring to dissolve completely.

3) Mixing caprylic/capric glyceride polyglycerol-10 esters, squalane, 1, 2-hexanediol, dipropylene glycol, ethylhexyl glycerol and essence, and stirring to obtain transparent solution.

4) Adding the emulsion obtained in the step 3) into the emulsion obtained in the step 2), and stirring until the emulsion is uniform.

5) Adjusting the pH value to be within the range of 5.0-6.5 by using citric acid and sodium citrate.

6) Introducing 0.3mg/L ozone into the emulsion, sealing and maintaining for 10min to obtain the emulsion.

7) Directly adding into wet tissue production equipment to obtain the finished wet tissue.

6. Formula and using method of no-clean makeup removing emulsion

1) Preparing a 10% solution of citric acid for later use.

2) Adding glycerol, EDTA-disodium, dipropylene glycol, ethylhexyl glycerol and betaine into deionized water, and stirring to completely dissolve.

3) Mixing and stirring polyglycerol-6 caprylate, polyglycerol-3 cocoate, polyglycerol-4 caprate, polyglycerol-6 ricinoleate, caprylyl/capramidopropyl betaine, polyglycerol-4 caprate, polydimethylsiloxane, dimethiconol and essence to obtain a transparent solution.

4) Adding the emulsion obtained in the step 3) into the emulsion obtained in the step 2), and stirring until the emulsion is uniform.

5) Adjusting the pH value to be within the range of 5.0-6.5 by using citric acid.

6) Adding the polyquaternium-10 into the mixture of the step 4) and stirring the mixture evenly.

7) And (3) introducing 0.2mg/L ozone into the emulsion, and sealing for 15min to obtain the emulsion.

8) Directly adding into wet tissue production equipment to obtain the finished wet tissue.

The formula and the using method of the six different emulsions are combined with the spunlace nonwoven fabric which is dried for the second time, and then the wet tissues with different sizes such as the middle package, the mini package/single package, the big package and the like are obtained by cutting and packaging.

The preparation method of the wet tissue without antibacterial agent residue on the skin after use has the advantages that the problem that the skin of sensitive skin and the skin of infants have different degrees of discomfort is solved, so the mildness and the safety of the wet tissue are improved, the market demand is met, and the problem that the wet tissue can be conveniently used by sensitive people and infant people is solved.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.