Infant wet tissue and preparation method thereof
By using natural ingredients such as glycerin and a segmented mixing process, combined with a specific fiber cloth design, the problem of preservatives in existing wet wipes to infant safety risks is solved, and a safe, non-irritating and effective wet wipe products are achieved.
Patent Information
- Application Number
- CN202411453123.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-01-10
AI Technical Summary
The added preservatives in existing wipes are at risk for the safety of babies, and alternatives to traditional preservatives such as silver ions are not completely harmless, requiring a safe and non-irritating wipe solution based on natural raw materials. .
Using natural ingredients such as glycerin, fir extract, oat extract, grapefruit seed extract, rosemary extract, lactic acid, vitamin E, panthenol and dipotassium glycyrrhizate, etc., ensure uniform dispersion and stability of the ingredients through a segmented mixing process. In combination with the design of the three-layer fiber cloth, wet wipes for babies are obtained through hydrospinning process and hydrophilic finishing.
It achieves non-irritation and safety, ensuring the safety and gentleness of wet wipes when cleaning baby's skin, while avoiding the use of chemical preservatives through natural antiseptic effects, ensuring the long-term effectiveness of wet wipes.
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wet wipes, and more particularly to a wet wipe for babies and a preparation method thereof. Background Art
[0002] Wet wipes are moist paper towels used to wipe the skin. They are made of non-woven fabrics, dust-free paper or other porous or absorbent materials as carriers, purified water as production water, and appropriate amounts of moisturizers, flavors, preservatives and other auxiliary materials. They are products that have a cleansing effect on the surface of the human body or objects.
[0003] Wet wipes have two parts, one is the base fabric as the substrate, and the other is the wet wipes liquid after the base fabric is soaked. The composition of the wet wipes liquid determines the nature of the wet wipes. Currently, most wet wipes liquids on the market will add preservatives to increase their shelf life. Even if the content of preservatives is controlled within the standard, long-term use will pose risks to babies.
[0004] At present, the use of natural raw materials to mix production to replace the addition of traditional preservatives is the reverse of current research and development of enterprises. For example, a trace amount of silver ions is used as a seasoning as an additive, but silver ions are not safe and harmless substances. In summary, new materials based on natural raw materials are needed for wet wipes. Summary of the invention
[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a wet wipe which is reasonably simple, highly practical, safe and non-irritating and suitable for use by babies, and a preparation method thereof.
[0006] To achieve the above object, the present invention provides the following technical solutions: A baby wet wipe, comprising a fiber cloth and a liquid absorbed by the fiber cloth, wherein the liquid can seep out when the fiber cloth is squeezed, and the liquid comprises 1-2 parts of glycerin; 0.5-1 parts of fir extract; 0.2-0.5 parts of oat extract; 0.1-0.2 parts of grapefruit seed extract; 0.1-0.3 parts of rosemary extract; 0.05-0.1 parts of lactic acid; 0.05-0.1 parts of vitamin E; 0.1-0.5 parts of panthenol; 0.05-0.2 parts of dipotassium glycyrrhizinate; and the rest is pure water; The fiber cloth comprises an upper layer of bamboo fiber, a middle layer of super absorbent resin fiber, and a lower layer of organic cotton fiber. The fiber cloth is obtained by combing three layers of fiber raw materials into a web and compounding them, and then performing a spunlace process and a hydrophilic finishing.
[0007] A method for preparing wet wipes for babies, wherein the preparation of the liquid comprises the following steps: S1. First stage mixing - preparation of base solution Choose ultrapure water; Glycerol dissolution: Add 1-2 parts of glycerol into the treated pure water, stir at 300-500rpm, control the temperature at 20-25℃, stir for 5-10 minutes to ensure that the glycerol is completely dissolved to form a uniform basic solution; Lactic acid addition: slowly add 0.05-0.1 parts of lactic acid to the base solution, continue stirring for 5 minutes, and adjust the pH value of the solution to between 4.5-5.5. S2, second stage mixing - addition of active ingredients 0.5-1 part of fir extract, 0.2-0.5 part of oat extract, 0.1-0.2 part of grapefruit seed extract and 0.1-0.3 part of rosemary extract were gradually added to the base solution. Stir for 5-10 minutes after adding each ingredient. The stirring speed was maintained at 300-400rpm to ensure that each extract was evenly dispersed in the solution. During this period, the solution temperature should be maintained at 20-25℃. S3, the third stage of mixing - the addition of stabilizing ingredients Addition of panthenol: Add 0.1-0.5 parts of panthenol to the above solution and continue stirring for 5-10 minutes at room temperature (20-25°C); Addition of dipotassium glycyrrhizinate: Add 0.05-0.2 parts of dipotassium glycyrrhizinate and continue stirring for 5 minutes. S4, the fourth stage of mixing - the addition of sensitive ingredients Addition of vitamin E: Add 0.05-0.1 parts of vitamin E, stirring at 200-300 rpm for 5-10 minutes. S5. Final mixing and processing Mix well: Stir all added ingredients at low temperature (15-20℃) for 30 minutes to ensure the uniformity and stability of the solution; Sterile filtration: Filter the final mixed solution through a sterile filter membrane to remove possible microorganisms and particulate matter; Sterilization and cooling: The filtered wet wipes liquid is pasteurized and heated at 60-70°C for 30 minutes. The sterilized mixed liquid is quickly cooled to room temperature (20-25°C) to obtain a liquid.
[0008] The present invention is further configured as follows: the preparation steps of the Abies fir extract are as follows: S11, washing the collected fir needles with clean water, drying them after washing, and crushing them with a grinder to obtain raw material particles with a water content of 5-10%; S12, placing the raw material particles and the ethanol solution in a leaching tank in a mass ratio of 1:10 for mixing, raising the temperature in the leaching tank to 60-80° C., stirring the raw material and the solution during the immersion process, and the immersion time is 4-6 hours; S13. After the impregnation is completed, the heating system is turned off, the extract in the extraction tank is cooled to room temperature, the extract is further filtered using a vacuum filter, and the filtered extract is collected in a vacuum concentrator to obtain a fir extract under reduced pressure conditions.
[0009] The present invention is further configured as follows: the steps of mixing the fiber cloth and the liquid are as follows: S01. Place the three-layer composite fiber cloth into a pre-wetting device and pre-wet the fiber cloth to 10-20% of the weight of the fiber cloth by spraying. During the pre-wetting process, the temperature is controlled at 30-40°C. S02, using liquid to impregnate the pre-wetted fiber cloth. During the impregnation process, the liquid temperature is controlled at 20-30°C and the impregnation pressure is controlled at 1-5 MPa; The present invention is further configured as follows: Step S22 specifically includes the following: S02.1. Initial impregnation: Place the pre-wetted fiber cloth into the impregnation tank. During the impregnation process, control the liquid temperature at 20-30°C, and gradually cool it down from 30°C to 20°C. The impregnation time is 5-10 minutes. S02.2, first stage extrusion: after the initial impregnation, the fiber cloth is sent to the first stage extrusion device to initially remove excess liquid. The extrusion pressure is controlled at 0.3-0.6 kg / cm² and the extrusion time is 1-2 minutes; S02.3. After the first extrusion, let the fiber cloth stand for 3-5 minutes; S02.4, secondary impregnation: the fiber cloth is sent to the impregnation tank again for secondary impregnation, the liquid temperature is controlled at 20-25°C, and the impregnation time is 5-10 minutes; S02.5, the fiber cloth is again extruded through the extrusion device, the extrusion pressure is controlled at 0.5-1.0 kg / cm², and the extrusion time is 2-3 minutes; S02.6. After the second extrusion, let the fiber cloth stand for 5-10 minutes; S02.7. Use the cold air system to cool and shape the fiber cloth. The cold air temperature is controlled at 15-20℃. The cooling time is 5-10 minutes.
[0010] The present invention is further configured as follows: the detailed steps of step S2 are as follows: S2.1. Addition and stirring of fir extract: S2.1.1. First, add 0.5-1 part of Abies extract to the base solution, start the stirrer, set the initial stirring speed to 200-300 rpm, and stir for 5-10 minutes, during which the solution temperature is controlled at 20-22°C; S2.1.2. After stirring, place the solution in a dark environment for 3-5 minutes to allow the fir extract to fully blend into the base solution. S2.2. Addition and stirring of rosemary extract: S2.2.1, add 0.1-0.3 parts of rosemary extract, adjust the stirring speed to 250-350 rpm, the stirring time is 7-10 minutes, and the solution temperature is maintained at 21-23 ° C; S2.2.2. After stirring, let it stand for 5 minutes. S2.3. Addition and stirring of grapefruit seed extract: S2.3.1. Add 0.1-0.2 parts of grapefruit seed extract, increase the stirring speed to 300-400 rpm, stir for 5-7 minutes, and increase the temperature to 22-25°C; S2.3.2 After stirring, let it stand for 3-5 minutes. S2.4. Addition and stirring of oat extract: S2.4.1. Add 0.2-0.5 parts of oat extract, reduce the stirring speed to 150-250 rpm, stir for 10 minutes and stabilize the solution temperature at 20-22°C; S2.4.2 After stirring, let the solution stand for 10 minutes. S2.5, Final mixing and standing: S2.5.1. When all active ingredients have been added and evenly dispersed, gently stir for an additional 5 minutes at a speed of 150-200 rpm to ensure the uniformity and stability of the final solution; S2.5.2. After stirring, let the solution stand for 30 minutes to 1 hour in a cool, dark and constant temperature environment (20-22°C).
[0011] The present invention is further configured as follows: in the fiber cloth: the fiber diameter of the bamboo fiber is 10-30 microns and the length is 10-20 millimeters; the fiber diameter of the super absorbent resin fiber is 5-20 microns and the length is 5-15 millimeters; Organic cotton fibers have a fiber diameter of 15-35 microns, a length of 15-25 mm, and are treated with emulsified wax.
[0012] The present invention is further configured as follows: the filter membrane used in the sterile filtration process in S5 is a hydrophilic polytetrafluoroethylene (PTFE) filter membrane with a filtration pore size of 0.22 microns.
[0013] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are: The selected ingredients include glycerin, fir extract, oat extract, grapefruit seed extract, rosemary extract, lactic acid, vitamin E, panthenol and dipotassium glycyrrhizinate, all of which have good moisturizing, antibacterial, soothing and antioxidant effects, and do not contain any irritating or harmful chemicals, thus ensuring the safety and gentleness of the wipes when cleaning baby skin.
[0014] The segmented mixing process ensures the uniform dispersion and stability of each active ingredient. Through the precise control of the stirring speed, temperature and standing time, the activity of each ingredient can be preserved to the maximum extent, avoiding the degradation or failure of ingredients caused by uneven mixing or excessive temperature, thus ensuring the long-term effectiveness of the wipes.
[0015] The natural preservatives of rosemary extract and fir extract are mixed to achieve the effect of eliminating chemical preservatives. DETAILED DESCRIPTION
[0016] It includes a fiber cloth and a liquid absorbed by the fiber cloth, and the liquid can seep out when the fiber cloth is squeezed.
[0017] Embodiment 1: The preparation of liquid comprises the following steps: Preparation of the first mixed base solution: Select ultrapure water, add 1 part of glycerol to the treated pure water, stir at 300rpm, control the temperature at 20℃, stir for 5 minutes, ensure that the glycerol is completely dissolved, and form a uniform base solution, slowly add 0.05 parts of lactic acid to the base solution, continue stirring for 5 minutes, and adjust the pH value of the solution to 4.5. The second stage of mixing - addition of active ingredients: First, add 0.5 parts of fir extract to the basic solution, start the agitator, set the initial stirring speed to 200 rpm, and stir for 5 minutes, during which the solution temperature is controlled at 20°C; after stirring, let the solution stand in a light-proof environment for 3 minutes to allow the fir extract to fully blend into the basic solution.
[0018] Add 0.1 parts of rosemary extract, adjust the stirring speed to 250 rpm, stir for 7 minutes, keep the solution temperature at 21°C, and let it stand for 5 minutes after stirring. Add 0.1 parts of grapefruit seed extract, increase the stirring speed to 300 rpm, stir for 5 minutes, increase the temperature to 22°C, let stand for 3 minutes after stirring, add 0.2 parts of oat extract, reduce the stirring speed to 150 rpm, stir for 10 minutes to stabilize the solution temperature at 20°C, and let the solution stand for 10 minutes after stirring.
[0019] When all active ingredients have been added and evenly dispersed, gently stir for an additional 5 minutes at 150 rpm to ensure the uniformity and stability of the final solution. After stirring, let the solution stand for 30 minutes to 1 hour in a cool, dark and constant temperature environment (20-22°C).
[0020] The preparation steps of the fir extract are as follows: the collected fir needles are washed with clean water, dried after washing, and the water content is 5-10%, and crushed with a crusher to obtain raw material particles; The raw material particles and the ethanol solution are placed in a leaching tank at a mass ratio of 1:10 and mixed. The temperature in the leaching tank is raised to 60-80°C. During the immersion process, the raw material and the solution are stirred. The immersion time is 4-6 hours. After the impregnation is completed, the heating system is turned off, the extract in the extraction tank is cooled to room temperature, the extract is further filtered using a vacuum filter, and the filtered extract is collected in a vacuum concentrator to obtain the fir extract under reduced pressure conditions.
[0021] The third stage of mixing - adding the stabilizing ingredients: add 0.1 parts of panthenol to the solution obtained in the second stage of mixing, continue stirring for 5 minutes at room temperature (20-25°C), add 0.05 parts of dipotassium glycyrrhizinate, continue stirring for 5 minutes, The fourth stage of mixing - adding sensitive ingredients: add 0.05 parts of vitamin E, keep the stirring speed at 200-300 rpm, stir for 5 minutes, Final mixing and processing: All added ingredients are stirred for 30 minutes at low temperature (15-20°C) to ensure the homogeneity and stability of the solution; The final mixed solution is filtered through a hydrophilic polytetrafluoroethylene (PTFE) filter membrane with a pore size of 0.22 microns to remove possible microorganisms and particulate matter; The filtered wet wipes liquid is pasteurized, maintained at 60-70°C for 30 minutes, and the sterilized mixed liquid is quickly cooled to room temperature (20-25°C) to obtain a liquid.
[0022] Fiber cloth: including an upper layer of bamboo fiber, a middle layer of super absorbent resin fiber, and a lower layer of organic cotton fiber. The fiber cloth is obtained by combing three layers of fiber raw materials into a web and compounding them, and then performing a spunlace process and a hydrophilic finishing. The bamboo fiber has a fiber diameter of 10-30 microns and a length of 10-20 mm; the super absorbent resin fiber has a fiber diameter of 5-20 microns and a length of 5-15 mm; the organic cotton fiber has a fiber diameter of 15-35 microns and a length of 15-25 mm, and is treated with emulsified wax.
[0023] The steps for mixing the fiber cloth and the liquid are as follows: Place the fiber cloth in the pre-wetting equipment and use spraying to pre-wet the fiber cloth to 10-20% of its weight. During the pre-wetting process, the temperature is controlled at 30°C. Initial impregnation: put the pre-wetted fiber cloth into the impregnation tank. During the impregnation process, the temperature gradually decreases from 30°C to 20°C. The impregnation time is 5 minutes. First stage extrusion: After the initial impregnation, the fiber cloth is sent to the first stage extrusion device to initially remove excess liquid. The extrusion pressure is controlled at 0.3 kg / cm² and the extrusion time is 1 minute. After the first stage extrusion, the fiber cloth is left to stand for 3-5 minutes; The fiber cloth is sent to the impregnation tank for secondary impregnation again. The liquid temperature is controlled at 25℃ and gradually cooled to 20℃. The impregnation time is 5 minutes. The fiber cloth is extruded again through the extrusion device. The extrusion pressure is controlled at 0.5, kg / cm², and the extrusion time is 2 minutes. The fiber cloth is cooled and shaped by the cold air system. The cold air temperature is controlled at 15℃ and the cooling time is 5 minutes.
[0024] Embodiment 2: The preparation of liquid comprises the following steps: Select ultrapure water, add 2 parts of glycerol to the treated pure water, stir at 500rpm, control the temperature at 25℃, stir for 10 minutes to ensure that the glycerol is completely dissolved to form a uniform basic solution, slowly add 0.1 parts of lactic acid to the basic solution, continue stirring for 5 minutes, and adjust the pH value of the solution to 5.5. First, add 1 part of fir extract to the basic solution, start the agitator, set the initial stirring speed to 300 rpm, and stir for 10 minutes, during which the solution temperature is controlled at 22°C; after stirring, let the solution stand in a light-proof environment for 5 minutes to allow the fir extract to fully blend into the basic solution, add 0.3 parts of rosemary extract, adjust the stirring speed to 350 rpm, stir for 10 minutes, keep the solution temperature at 23°C, and let it stand for 5 minutes after stirring; add 0.2 parts of grapefruit seed extract, increase the stirring speed to 400 rpm, stir for 7 minutes, increase the temperature to 25°C, and let it stand for 5 minutes after stirring, add 0.5 parts of oat extract, reduce the stirring speed to 250 rpm, stir for 10 minutes to stabilize the solution temperature at 22°C, and let the solution stand for 10 minutes after stirring.
[0025] When all active ingredients have been added and evenly dispersed, gently stir for an additional 5 minutes at a speed of 200 rpm to ensure the uniformity and stability of the final solution. After stirring, let the solution stand for 30 minutes to 1 hour in a cool, dark and constant temperature environment (20-22°C). Add 0.5 parts of panthenol to the above solution and continue stirring for 10 minutes at room temperature (20-25°C), then add 0.2 parts of dipotassium glycyrrhizinate and continue stirring for 5 minutes; add 0.1 parts of vitamin E and keep stirring at 300 rpm for 10 minutes. Continue stirring all added ingredients at low temperature (15-20°C) for 30 minutes, filter the final mixture through the filter membrane used, pasteurize the filtered wet wipes liquid, maintain heating at 60-70°C for 30 minutes, and quickly cool the sterilized mixture to room temperature (20-25°C) to obtain a liquid.
[0026] The steps for mixing the fiber cloth and the liquid are as follows: Put the fiber cloth into the pre-wetting equipment and use spraying to pre-wet the fiber cloth to 10-20% of the weight of the fiber cloth. During the pre-wetting process, the temperature is controlled at 30-40℃. Initial impregnation: put the pre-wetted fiber cloth into the impregnation tank. During the impregnation process, the temperature gradually decreases from 30°C to 20°C. The impregnation time is 10 minutes. First stage extrusion: After the initial impregnation, the fiber cloth is sent to the first stage extrusion device to initially remove excess liquid. The extrusion pressure is controlled at 0.6 kg / cm² and the extrusion time is 2 minutes. After the first stage extrusion, the fiber cloth is left to stand for 5 minutes; The fiber cloth is sent to the dipping tank for secondary dipping. During the dipping process, the temperature gradually decreases from 25°C to 20°C, and the dipping time is 10 minutes. The fiber cloth is extruded again through an extrusion device, the extrusion pressure is controlled at 1.0 kg / cm², the extrusion time is 3 minutes, and the fiber cloth is cooled and shaped using a cold air system, the cold air temperature is controlled at 20°C, and the cooling time is 10 minutes.
[0027] Embodiment 3: The preparation of liquid comprises the following steps: Select ultrapure water, add 1.5 parts of glycerol to the treated pure water, stir at 400rpm, control the temperature at 23℃, stir for 8 minutes to ensure that the glycerol is completely dissolved to form a uniform basic solution, slowly add 0.08 parts of lactic acid to the basic solution, continue stirring for 5 minutes, and adjust the pH value of the solution to 5.3. First, add 0.8 parts of fir extract to the basic solution, start the agitator, set the initial stirring speed to 280 rpm, and stir for 8 minutes, during which the solution temperature is controlled at 21°C; after stirring, let the solution stand in a light-proof environment for 4 minutes to allow the fir extract to fully blend into the basic solution; add 0.2 parts of rosemary extract, adjust the stirring speed to 300 rpm, stir for 9 minutes, keep the solution temperature at 22°C, and let it stand for 5 minutes after stirring; add 0.15 parts of grapefruit seed extract, increase the stirring speed to 380 rpm, stir for 6 minutes, increase the temperature to 24°C, and let it stand for 4 minutes after stirring; add 0.4 parts of oat extract, reduce the stirring speed to 200 rpm, stir for 10 minutes to stabilize the solution temperature at 22°C, and let the solution stand for 10 minutes after stirring.
[0028] When all active ingredients have been added and evenly dispersed, stir gently for an additional 5 minutes at a speed of 180 rpm to ensure the uniformity and stability of the final solution. After stirring, let the solution stand for 30 minutes to 1 hour in a cool, dark and constant temperature environment (20-22°C). Add 0.3 parts of panthenol to the above solution and continue stirring for 8 minutes at room temperature (20-25°C), then add 0.1 parts of dipotassium glycyrrhizinate and continue stirring for 5 minutes; add 0.08 parts of vitamin E and keep stirring at 255 rpm for 8 minutes. Stir all the added ingredients at low temperature (15-20°C) for 30 minutes, filter the final mixture through the filter membrane used, pasteurize the filtered wet wipes liquid, maintain heating at 60-70°C for 30 minutes, and quickly cool the sterilized mixture to room temperature (20-25°C) to obtain a liquid.
[0029] The steps for mixing the fiber cloth and the liquid are as follows: Put the fiber cloth into the pre-wetting equipment and use spraying to pre-wet the fiber cloth to 10-20% of the weight of the fiber cloth. During the pre-wetting process, the temperature is controlled at 30-40℃. Initial impregnation: put the pre-wetted fiber cloth into the impregnation tank. During the impregnation process, the temperature gradually decreases from 30°C to 20°C. The impregnation time is 8 minutes. After the initial impregnation, the fiber cloth is sent to the first extrusion device to preliminarily remove excess liquid. The extrusion pressure is controlled at 0.45 kg / cm² and the extrusion time is 2 minutes. After the first extrusion, the fiber cloth is left to stand for 4 minutes. The fiber cloth is sent to the impregnation tank again for secondary impregnation. During the impregnation process, the temperature gradually decreases from 25°C to 20°C. The impregnation time is 8 minutes. The fiber cloth is again extruded through the extrusion device for secondary extrusion. The extrusion pressure is controlled at 0.8 kg / cm² and the extrusion time is 2.5 minutes. The cold air system is used to cool and shape the fiber cloth. The cold air temperature is controlled at 18°C and the cooling time is 9 minutes.
[0030] Comparative Example 1: Based on the liquid obtained in Example 1, the steps of mixing it with the fiber cloth are as follows: Put the fiber cloth into the pre-wetting equipment and use spraying to pre-wet the fiber cloth to 10-20% of the weight of the fiber cloth. Control the temperature at 30-40°C during the pre-wetting process. Then send the fiber cloth into the impregnation tank for impregnation. During the impregnation process, the temperature gradually decreases from 30°C to 20°C. The impregnation time is 30 minutes to obtain the finished product.
[0031] Comparative Example 2: In the second stage of mixing - adding active ingredients in Example 1, 0.5 parts of fir, 0.2 parts of oat extract, 0.1 parts of grapefruit seed extract and 0.1 parts of rosemary extract are directly added to the base solution step by step to ensure that each extract is evenly dispersed in the solution. During this period, the solution temperature should be maintained at 20-25°C. After obtaining the solution, 0.1 parts of panthenol are added, and stirring is continued for 5 minutes at room temperature (20-25°C). 0.05 parts of dipotassium glycyrrhizinate are added, and stirring is continued for 5 minutes. 0.05 parts of vitamin E are added, and the stirring speed is maintained at 200- 300rpm, stir for 5 minutes, and continue to stir all the added ingredients at low temperature (15-20℃) for 30 minutes to ensure the uniformity and stability of the solution; the final mixed solution is filtered through a hydrophilic polytetrafluoroethylene (PTFE) filter membrane with a pore size of 0.22 microns to remove possible microorganisms and particulate matter; the filtered wet wipes liquid is pasteurized and heated at 60-70℃ for 30 minutes, and the sterilized mixed solution is quickly cooled to room temperature (20-25℃) to obtain a liquid, and then the liquid and fiber cloth are mixed to obtain a finished product.
[0032] The following is a detailed description of the test steps and methods for each test item: pH test steps: 1. Measure the pH of the wipes solution using a calibrated pH meter.
[0033] 2. Take a certain amount of wet wipes liquid (usually 10 ml) and put it into a clean beaker.
[0034] 3. Immerse the probe of the pH meter into the liquid, stir it evenly, and read the stable pH value.
[0035] 4. Before each measurement, the pH meter probe must be cleaned with distilled water and calibrated with standard buffer.
[0036] Test criteria: pH value should be between 4.5-5.5, suitable for the natural pH of baby skin.
[0037] Microbial content test steps: 1. Sampling: Take a certain amount of wet wipes liquid (such as 1 ml) using aseptic operation method and dilute to an appropriate concentration.
[0038] 2. Inoculation: Inoculate the diluted sample onto the nutrient agar plate and distribute it evenly.
[0039] 3. Cultivate: Place the inoculated plate in a constant temperature incubator at 37°C for 24-48 hours.
[0040] 4. Counting: After the incubation period, count the number of colonies on the plate using a colony counter or visually.
[0041] Test standards: The total colony count should comply with national or industry standards, and specific pathogens (such as Escherichia coli and Staphylococcus aureus) should be "not detected".
[0042] Active ingredient content test steps: 1. Sample preparation: Take a certain amount of wet wipes liquid sample and prepare the analytical sample through appropriate pre-treatment methods (such as filtration or concentration).
[0043] 2. Analytical instruments: Use high performance liquid chromatography (HPLC) or gas chromatography (GC) for analysis.
[0044] 3. Standard curve: A standard curve is prepared using standards of known concentrations to calculate the amount of active ingredient in the sample.
[0045] 4. Determination: Inject the sample into HPLC or GC, record the retention time and peak area of each component, and calculate the concentration based on the standard curve.
[0046] Test standard: The content of each active ingredient should reach the concentration range specified in the formula.
[0047] Antibacterial performance test steps: 1. Prepare bacterial suspension: Use target bacteria (such as Escherichia coli, Staphylococcus aureus) to prepare bacterial suspension of appropriate concentration.
[0048] 2. Sample processing: Mix the wet wipes liquid sample with the bacterial suspension and dilute them in a certain ratio.
[0049] 3. Cultivation: Inoculate the mixture on nutrient agar plates and incubate at 37°C for 24 hours.
[0050] 4. Calculation of the inhibition rate: After the incubation period, count the colonies in the sample treatment group and the plate control group, and calculate the inhibition rate according to the formula.
[0051] Test standard: The antibacterial rate should be ≥99%, indicating that the wipes have significant antibacterial effects.
[0052] Skin irritation test steps: 1. Selection of subjects: Use volunteers or experimental animals as subjects.
[0053] 2. Sample treatment: Apply the wipes liquid to the subject's skin (such as the inner forearm) and cover it with a patch for a certain period of time (such as 24 hours).
[0054] 3. Observe the reaction: Within the specified time, observe whether the skin has redness, swelling, itching or other allergic reactions.
[0055] 4. Record results: Record and evaluate the response.
[0056] Test standard: There should be no obvious irritation reaction, and no adverse reactions such as skin redness, swelling, and itching were found during the test.
[0057] Liquid absorption test steps: 1. Sampling: Take a certain amount of fiber cloth sample, weigh it and record its dry weight.
[0058] 2. Soak: Soak the fiber cloth sample completely in the wet wipes solution for 3-5 minutes to ensure full absorption of the solution.
[0059] 3. Squeeze: Take out the fiber cloth and gently squeeze to remove excess liquid on the surface.
[0060] 4. Weighing: Weigh again, calculate the weight difference after liquid absorption, and determine the amount of liquid absorbed.
[0061] Test standard: The liquid absorption should reach 200-300% of the dry weight of the fiber cloth.
[0062] Liquid release test steps: 1. Sampling: Take a wet wipe sample, fold it and place it under a standard pressure device (such as 1 kg / cm²).
[0063] 2. Squeeze: Apply standard pressure and hold for 1 minute to collect the released liquid.
[0064] 3. Measure: Use a graduated cylinder or a balance to measure the volume or weight of the released liquid.
[0065] 4. Calculation: Evaluate the liquid release of the wipes based on the amount of liquid released.
[0066] Test criteria: Liquid release should be adequate to ensure cleaning without causing excessive wetting.
[0067] Moisturizing performance test steps: 1. Baseline measurement: Using a skin moisture tester, measure the initial moisture level of your skin before applying the wipes.
[0068] 2. Use wet wipes: Wipe your skin with wet wipes and wait for a certain period of time (such as 15-30 minutes).
[0069] 3. Measure again: Use the same skin moisture tester to measure the moisture content of the skin after wiping again.
[0070] 4. Record: Compare the changes in moisture content before and after wiping to evaluate the moisturizing effect.
[0071] Test standard: After using the wipes, the moisture content of the skin should increase significantly and the moisturizing effect should be good.
[0072] Fiber cloth strength test steps: 1. Sampling: Cut a standard size wet wipes fabric sample.
[0073] 2. Test: Use a tensile testing machine to perform tensile tests on the samples to measure the tensile strength and tear strength of the fiber cloth.
[0074] 3. Record: Record the force value when the sample breaks and calculate the strength index.
[0075] 4. Analysis: Compare and analyze the intensity data of different samples.
[0076] Test standard: The strength of the fiber cloth should comply with national or industry standards to ensure that it is not easily damaged during use.
[0077] Antioxidant performance test steps: 1. Sample preparation: Take a certain amount of wet wipes liquid sample for pretreatment.
[0078] 2. Test: Test the antioxidant capacity of the sample by DPPH free radical scavenging test or ABTS method.
[0079] 3. Measurement: Use a spectrophotometer to measure the absorbance change of the sample and calculate the antioxidant activity.
[0080] 4. Calculation: Calculate the antioxidant capacity of the sample based on the antioxidant activity standard curve.
[0081] Test Standard: Antioxidant capacity should meet the specified activity standards to maintain the freshness and effectiveness of the product.
[0082] Based on the above content, the following table 1 is shown: Test items Embodiment 1 Embodiment 2 Embodiment 3 Comparative Example 1 Comparative Example 2 pH 4.5 5.5 5.3 4.8 5.0 Microbial Content qualified qualified qualified Failure qualified Active ingredient content high high high middle Low Antimicrobial properties excellent excellent excellent generally Difference Skin irritation No stimulation No stimulation No stimulation Mild irritation No stimulation Liquid aspiration 250% 270% 260% 230% 240% Liquid release Moderate Moderate Moderate excessive Moderate Moisturizing properties excellent excellent excellent generally Difference Fiber cloth strength high high high generally generally Antioxidant properties excellent excellent excellent generally Difference The wet wipes prepared in the embodiment were subjected to a complete skin irritation test: the results showed that the wet wipes prepared had no irritation to the skin, which fully demonstrated the safety of the wet wipes product and met the requirements of the disinfection technical specifications. It can be seen from Table 1 that the wet wipes prepared in the present invention have good antiseptic stability. The antioxidant capacity is at the same level as the wet wipes product with added preservatives.
[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.
Claims
1. A wet wipe for babies, comprising a fiber cloth and a liquid absorbed by the fiber cloth, wherein the liquid can seep out when the fiber cloth is squeezed, and wherein: The liquid comprises the following: 1-2 parts of glycerin; 0.5-1 parts of fir extract; 0.2-0.5 parts of oat extract; 0.1-0.2 parts of grapefruit seed extract; 0.1-0.3 parts of rosemary extract; 0.05-0.1 parts of lactic acid; 0.05-0.1 parts of vitamin E; 0.1-0.5 parts of panthenol; 0.05-0.2 parts of dipotassium glycyrrhizinate; and the rest is pure water; The fiber cloth comprises an upper layer of bamboo fiber, a middle layer of super absorbent resin fiber, and a lower layer of organic cotton fiber. The fiber cloth is obtained by combing three layers of fiber raw materials into a web and compounding them, and then performing a spunlace process and a hydrophilic finishing.
2. A method for preparing wet wipes for babies, characterized in that: The preparation of the liquid includes the following steps: S1. First stage mixing - preparation of base solution Choose ultrapure water; Glycerol dissolution: Add 1-2 parts of glycerol into the treated pure water, stir at 300-500rpm, control the temperature at 20-25℃, stir for 5-10 minutes to ensure that the glycerol is completely dissolved to form a uniform basic solution; Lactic acid addition: slowly add 0.05-0.1 parts of lactic acid to the base solution, continue stirring for 5 minutes, and adjust the pH value of the solution to between 4.5-5.
5. S2, second stage mixing - addition of active ingredients 0.5-1 part of fir extract, 0.2-0.5 part of oat extract, 0.1-0.2 part of grapefruit seed extract and 0.1-0.3 part of rosemary extract were gradually added to the base solution in sequence, ensuring that each extract was evenly dispersed in the solution. The solution temperature should be maintained at 20-25°C during this period. S3, the third stage of mixing - the addition of stabilizing ingredients Addition of panthenol: Add 0.1-0.5 parts of panthenol to the above solution and continue stirring for 5-10 minutes at room temperature (20-25°C); Addition of dipotassium glycyrrhizinate: Add 0.05-0.2 parts of dipotassium glycyrrhizinate and continue stirring for 5 minutes. S4, the fourth stage of mixing - the addition of sensitive ingredients Addition of vitamin E: Add 0.05-0.1 parts of vitamin E, keep the stirring speed at 200-300rpm, stir for 5-10 minutes, S5. Final mixing and processing Mix well: Stir all added ingredients at low temperature (15-20℃) for 30 minutes to ensure the uniformity and stability of the solution; Sterile filtration: Filter the final mixed solution through a sterile filter membrane to remove possible microorganisms and particulate matter; Sterilization and cooling: The filtered wet wipes liquid is pasteurized and heated at 60-70°C for 30 minutes. The sterilized mixed liquid is quickly cooled to room temperature (20-25°C) to obtain a liquid.
3. The method for preparing a wet wipe for babies according to claim 2, characterized in that: The preparation steps of the fir extract are as follows: S11, washing the collected fir needles with clean water, drying them after washing, and crushing them with a grinder to obtain raw material particles with a water content of 5-10%; S12, placing the raw material particles and the ethanol solution in a leaching tank in a mass ratio of 1:10 for mixing, raising the temperature in the leaching tank to 60-80° C., stirring the raw material and the solution during the immersion process, and the immersion time is 4-6 hours; S13. After the impregnation is completed, the heating system is turned off, the extract in the extraction tank is cooled to room temperature, the extract is further filtered using a vacuum filter, and the filtered extract is collected in a vacuum concentrator to obtain a fir extract under reduced pressure conditions.
4. The method for preparing a wet wipe for babies according to claim 2, characterized in that: The steps for mixing the fiber cloth and the liquid are as follows: S01. Place the fiber cloth in a pre-wetting device and pre-wet the fiber cloth to 10-20% of its weight by spraying. During the pre-wetting process, the temperature is controlled at 30-40°C. S02. Use liquid to impregnate the pre-wetted fiber cloth. During the impregnation process, control the liquid temperature at 20-30°C and the impregnation pressure at 1-5 MPa.
5. The method for preparing a wet wipe for babies according to claim 2, characterized in that: The step S02 specifically includes the following: S02.
1. Initial impregnation: Place the pre-wetted fiber cloth into the impregnation tank. During the impregnation process, control the liquid temperature at 20-30°C, and gradually cool it down from 30°C to 20°C. The impregnation time is 5-10 minutes. S02.2, first stage extrusion: after the initial impregnation, the fiber cloth is sent to the first stage extrusion device to initially remove excess liquid. The extrusion pressure is controlled at 0.3-0.6 kg / cm² and the extrusion time is 1-2 minutes; S02.
3. After the first extrusion, let the fiber cloth stand for 3-5 minutes; S02.4, secondary impregnation: the fiber cloth is sent to the impregnation tank again for secondary impregnation, the liquid temperature is controlled at 20-25°C, and the impregnation time is 5-10 minutes; S02.5, the fiber cloth is again extruded through the extrusion device, the extrusion pressure is controlled at 0.5-1.0 kg / cm², and the extrusion time is 2-3 minutes; S02.
6. After the second extrusion, let the fiber cloth stand for 5-10 minutes; S02.
7. Use the cold air system to cool and shape the fiber cloth. The cold air temperature is controlled at 15-20℃. The cooling time is 5-10 minutes.
6. The method for preparing a wet wipe for babies according to claim 2, characterized in that: The detailed steps of step S2 are as follows: S2.
1. Addition and stirring of fir extract: S2.1.
1. First, add 0.5-1 part of Abies extract to the base solution, start the stirrer, set the initial stirring speed to 200-300 rpm, and stir for 5-10 minutes, during which the solution temperature is controlled at 20-22°C; S2.1.
2. After stirring, place the solution in a dark environment for 3-5 minutes to allow the fir extract to fully blend into the base solution. S2.
2. Addition and stirring of rosemary extract: S2.2.1, add 0.1-0.3 parts of rosemary extract, adjust the stirring speed to 250-350 rpm, the stirring time is 7-10 minutes, and the solution temperature is maintained at 21-23 ° C; S2.2.
2. After stirring, let it stand for 5 minutes. S2.
3. Addition and stirring of grapefruit seed extract: S2.3.
1. Add 0.1-0.2 parts of grapefruit seed extract, increase the stirring speed to 300-400 rpm, stir for 5-7 minutes, and increase the temperature to 22-25°C; S2.3.2 After stirring, let it stand for 3-5 minutes. S2.
4. Addition and stirring of oat extract: S2.4.
1. Add 0.2-0.5 parts of oat extract, reduce the stirring speed to 150-250 rpm, stir for 10 minutes and stabilize the solution temperature at 20-22°C; S2.4.2 After stirring, let the solution stand for 10 minutes. S2.5, Final mixing and standing: S2.5.
1. When all active ingredients have been added and evenly dispersed, gently stir for an additional 5 minutes at a speed of 150-200 rpm to ensure the uniformity and stability of the final solution; S2.5.
2. After stirring, let the solution stand for 30 minutes to 1 hour in a cool, dark and constant temperature environment (20-22°C).
7. The method for preparing a wet wipe for babies according to claim 2, characterized in that: In the fiber cloth: the fiber diameter of the bamboo fiber is 10-30 microns and the length is 10-20 millimeters; the fiber diameter of the super absorbent resin fiber is 5-20 microns and the length is 5-15 millimeters; Organic cotton fibers have a fiber diameter of 15-35 microns, a length of 15-25 mm, and are treated with emulsified wax.
8. The method for preparing a wet wipe for babies according to claim 2, characterized in that: The filter membrane used in the sterile filtration process in S5 is a hydrophilic polytetrafluoroethylene (PTFE) filter membrane with a filtration pore size of 0.22 μm.