CN116549337A - Degradable sanitary wet towel and preparation process thereof - Google Patents
Degradable sanitary wet towel and preparation process thereof Download PDFInfo
- Publication number
- CN116549337A CN116549337A CN202310574619.2A CN202310574619A CN116549337A CN 116549337 A CN116549337 A CN 116549337A CN 202310574619 A CN202310574619 A CN 202310574619A CN 116549337 A CN116549337 A CN 116549337A
- Authority
- CN
- China
- Prior art keywords
- liquid medicine
- wet towel
- bamboo fiber
- polyhexamethylene biguanide
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
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Abstract
The invention provides a degradable sanitary wet towel, which comprises a liquid medicine and bamboo fiber non-woven fabrics for carrying the liquid medicine, wherein the liquid medicine comprises RO pure water, a humectant, a preservative, an emollient, an anti-allergic agent, a bactericide and a metal ion chelating agent; the bactericide comprises tea tree essential oil and polyhexamethylene biguanide, wherein the mass percentage of the polyhexamethylene biguanide is 0.1-0.5%; the metal ion chelating agent is used for chelating the metal ion polymer in the water phase so as to reduce nutrient intake sources of microorganisms and assist in improving the sterilization effect of the polyhexamethylene biguanide. According to the invention, the tea tree essential oil and the polyhexamethylene biguanide are used as main bactericides instead of alcohol, on the premise of ensuring the sterilizing effect, no alcohol irritation is generated, the tea tree essential oil and polyhexamethylene biguanide are mild to skin, are suitable for alcohol allergic people, do not contain alcohol in the liquid medicine, do not generate risk of burning or explosion, and are safe to store and transport.
Description
Technical Field
The invention relates to the technical field of wet towel production, in particular to a degradable sanitary wet towel and a preparation process thereof.
Background
Wet tissues are moist tissues used to wipe the skin. Wet tissues on the market can be broadly divided into two categories: one type is that the skin care product is sterilized but cannot be sterilized, and skin care components are contained in the skin care product, so that the skin care product can only be used for moistening and maintaining the skin. The other type is sterilized wet tissue which is sterilized not only by itself but also to other articles, and can be used for sterilization or disinfection of skin abrasion, scratch and the like.
With the remarkable public health safety problem in recent years, the market of disinfection products is rapidly catalyzed, various sanitary products for disinfection and epidemic prevention are widely focused by people, but most skin surface disinfection wet tissues on the market are limited to a formula of 75% alcohol. The bactericidal effect of 75% alcohol is widely accepted, but the safety and risk of existence is not so small: 1. alcohol is a flammable and explosive chemical, which has high storage and transportation conditions and can cause combustion or explosion when encountering open fire in high-temperature environments; 2. the mechanism of alcohol disinfection is that strong penetrating power is utilized to quickly infiltrate into the interior of pathogenic microorganism, so that protein in the interior of the pathogenic microorganism is dehydrated, denatured and coagulated, and the pathogenic microorganism is finally killed, so that cells on the surface of the skin can also quickly lose water under the principle, and the skin is itchy and chapped. 3. Alcohol may cause skin allergy, and alcohol allergy sufferers are prohibited from using.
Therefore, it is needed to provide a wet towel product which has good sterilizing and disinfecting effects, is safe to store and transport, has little skin irritation, and is suitable for alcohol allergy sufferers.
Disclosure of Invention
The invention aims to provide a degradable sanitary wet towel which has the advantages of safe storage and transportation, small skin irritation and suitability for alcohol allergy patients under the good sterilization and disinfection effects.
The invention aims at realizing the following technical scheme: a degradable sanitary wet towel comprises a liquid medicine and bamboo fiber non-woven fabrics for carrying the liquid medicine, wherein the liquid medicine comprises RO pure water, a humectant, a preservative, an emollient, an anti-allergic agent, a bactericide and a metal ion chelating agent;
the bactericide comprises tea tree essential oil and polyhexamethylene biguanide, wherein the mass percentage of the polyhexamethylene biguanide is 0.1-0.5%;
the metal ion chelating agent is used for chelating the metal ion polymer in the water phase so as to reduce nutrient intake sources of microorganisms and assist in improving the sterilization effect of the polyhexamethylene biguanide.
Preferably, the mass ratio of the bamboo fiber non-woven fabric to the liquid medicine carried on the bamboo fiber non-woven fabric is 1:2-1:4, and the PH value of the liquid medicine is 5.5-8.0.
Preferably, the preservative is any one or more of phenoxyethanol, potassium sorbate, sodium benzoate, ethylhexyl glycerol, benzyl alcohol and octyl glycol.
Preferably, the humectant is a polyhydric alcohol humectant, or a mixture of one or more of collagen, hyaluronic acid, panthenol and trehalose; the polyalcohol humectant is one or more of glycerol, propylene glycol and butanediol.
Preferably, the emollient is an oil-soluble emollient or a water-soluble emollient; the oil-soluble emollient is one or more of vitamin E acetate, shea butter, tea tree essential oil, lanolin, and caprylic/capric triglyceride; the water-soluble emollient is one or more of aloe extract, peach leaf extract, flos Matricariae Chamomillae extract and Hamamelis mollis extract.
Preferably, the antiallergic agent is any one or mixture of more than one of allantoin, beta-glucan, purslane extract, centella asiatica extract and chamomile extract.
Preferably, the metal ion chelating agent disodium ethylenediamine tetraacetate is 0.01% -0.1% by mass of disodium ethylenediamine tetraacetate.
Preferably, the composition further comprises a surfactant, wherein the surfactant is any one or a mixture of more of polysorbate-20, polysorbate-80, decyl glucoside, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine and disodium cocoyl amphodiacetate.
A preparation process of a degradable sanitary wet tissue comprises the following specific steps:
step 1), raw material weighing: weighing the raw materials of the wet tissue liquid medicine; for raw materials which are not easy to dissolve, pre-dissolving or pre-dispersing is carried out in advance;
step 2), liquid preparation dilution: adding part of RO pure water into a stirring tank according to the proportion, sequentially stirring the weighed or pre-dissolved or pre-dispersed raw materials into the stirring tank in a stirring state, and then adding the rest RO pure water; stirring at stirring speed of 30 rpm for 15-20 min to ensure the material to be dissolved completely and complete the preparation of the medicine liquid;
step 3), sampling and detecting the prepared liquid medicine, and respectively sampling the upper layer and the bottom layer of the liquid medicine to detect the PH value and the effective content of the polyhexamethylene biguanide of the upper layer sample and the lower layer sample; if the detected data reach the standard, carrying out the next step, otherwise, carrying out the reformulation of the liquid medicine;
step 4), the wet towel production line folds the bamboo fiber non-woven fabric according to a preset folding mode and folding size, and the folded bamboo fiber non-woven fabric is conveyed to a liquid adding station by a conveying traction roller;
step 5), adding the prepared liquid medicine into a liquid medicine storage tank, wherein a plurality of spraying pipes are arranged on a liquid adding station and are connected with the liquid medicine storage tank through a liquid conveying pipeline; the liquid medicine is sprayed out from a spraying opening at the lower side of the spraying pipe; the bamboo fiber non-woven fabric passes through the lower part of the spray pipe, and the liquid medicine is sprayed onto the bamboo fiber non-woven fabric through the spray pipe; the mass ratio of the liquid medicine adsorbed on the bamboo fiber non-woven fabric to the bamboo fiber non-woven fabric is controlled between 1:2 and 1:4 by adjusting the liquid spraying speed of the spraying pipe;
step 6), cutting the liquid-added bamboo fiber non-woven fabric according to a set size to obtain wet tissue blocks, stacking the wet tissue blocks, and stacking a fixed number of wet tissue blocks to form a wet tissue stack;
step 7), weighing and detecting each wet towel stack, detecting metal ions, and conveying the wet towel stacks to a packaging station after the wet towel stacks are qualified;
step 8), after the wet towel stack enters a packaging station, covering a packaging film outside the wet towel stack, and labeling the packaging film to obtain a wet towel product;
step 9), sampling and detecting the offline wet tissue product batch, detecting indexes such as appearance, net content, PH value and microorganism number of the wet tissue, and warehousing after the detection is qualified.
The beneficial effects of the invention are as follows:
1. according to the invention, the tea tree essential oil and the polyhexamethylene biguanide are used as main bactericides instead of alcohol, on the premise of ensuring the sterilizing effect, no alcohol irritation is generated, the tea tree essential oil and polyhexamethylene biguanide are mild to skin, are suitable for alcohol allergic people, do not contain alcohol in the liquid medicine, do not generate risk of burning or explosion, and are safe to store and transport.
2. According to the invention, the bamboo fiber non-woven fabric is used as a supporting body of the liquid medicine, and the raw material of the bamboo fiber non-woven fabric is derived from natural bamboo, so that the material is environment-friendly and degradable, and accords with the sustainable development concept; and the material is soft and comfortable, and the water absorption and the air permeability are good.
3. The liquid medicine is added with the metal ion chelating agent, and the metal ion chelating agent is compatible with the polyhexamethylene biguanide, so that the metal ion chelating agent is used for chelating metal ion polymers in the water phase, thereby reducing nutrient intake sources of microorganisms, and greatly enhancing the sterilization effect under the action of the polyhexamethylene biguanide; therefore, the metal ion chelating agent and the polyhexamethylene biguanide are compatible, so that the auxiliary enhancement effect on the sterilization effect of the polyhexamethylene biguanide is achieved, and the dosage of the bactericide (polyhexamethylene biguanide) can be reduced on the premise of ensuring the sterilization effect; the metal ion chelating agent can chelate metal ions in the liquid medicine, and prevent the discoloration and deterioration of the liquid medicine caused by the metal ions.
Drawings
FIG. 1 is a schematic flow chart of a process for preparing a degradable sanitary wet towel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
A degradable sanitary wet towel comprises a degradable sanitary wet towel, wherein the degradable sanitary wet towel comprises liquid medicine and bamboo fiber non-woven fabrics for bearing the liquid medicine, and the liquid medicine is adsorbed on the bamboo fiber non-woven fabrics.
The bamboo fiber non-woven fabric used in the invention is made of natural bamboo fibers, and has the advantages of natural environment protection and degradability. The bamboo fiber non-woven fabric is soft and smooth and has strong water absorption. The bamboo fiber in the bamboo fiber non-woven fabric is distributed with a plurality of sections of clear transverse sections and vertical lines from the longitudinal section, the bamboo fiber non-woven fabric is not in a standard round shape from the transverse section, but is in various irregular elliptic shapes, a plurality of annular gaps are formed in the middle of the bamboo fiber non-woven fabric, a plurality of gaps with different sizes are formed in the section, cracks are formed in the vicinity of the edges of the bamboo fiber non-woven fabric, the gaps and the cracks are the key of good air permeability and water absorbability of the bamboo fiber fabric, meanwhile, the bamboo fiber fabric has certain antibacterial performance, and the use amount of preservative and bactericide in the liquid medicine can be reduced due to the antibacterial performance of the bamboo fiber fabric. In the traditional wet towel, the non-woven fabric which is prepared by water-jet consolidation of the mixed fiber of viscose/polyester fiber is used as a carrier of the liquid medicine, the existing non-woven fabric is a chemical fiber product, the water absorption is poor, the polyester fiber is used as a high polymer compound, petroleum is used as a raw material, certain pollution is easily caused to the environment in the production link, the environmental protection performance is poor, and the degradation is not easy to occur.
The medicinal liquid comprises RO pure water, antiseptic, humectant, emollient, antiallergic agent, bactericide, metal ion chelating agent, and surfactant.
The preservative is used for inhibiting microbial activity, and has continuous inhibition effect on growth of microorganisms using putrefying substances as metabolic substrates, and can prevent putrefying of components in wet tissues. Wherein the preservative is any one or more of phenoxyethanol, potassium sorbate, sodium benzoate, ethylhexyl glycerol, benzyl alcohol and octyl glycol.
The humectant can absorb moisture from air and prevent the loss of epidermis cutin moisture, so as to moisturize the skin and the product. Wherein the humectant is a polyalcohol humectant, or one or more of collagen, hyaluronic acid, panthenol and trehalose; the polyalcohol humectant is one or more of glycerol, propylene glycol and butanediol.
Emollients are used to soften and lubricate the skin and enhance the use experience of wet wipes. Emollients can fill the interstices between the exfoliated keratinocytes and flatten the curled edges of the keratinocytes to smooth the skin surface, making it smoother. In the invention, the emollient is oil-soluble emollient or water-soluble emollient; wherein the oil-soluble emollient is one or more of vitamin E acetate, shea butter, tea tree essential oil, lanolin, and caprylic/capric triglyceride; the water-soluble emollient is one or more of aloe extract, peach leaf extract, flos Matricariae Chamomillae extract and Hamamelis mollis extract. The oil-soluble emollient can also form a closed coating on the surface of the skin to prevent the evaporation of water and play a role in locking the skin.
The anti-allergic agent is used for reducing skin irritation causing tightness, redness and itching, enhancing skin barrier and reducing skin sensitivity. The antiallergic agent is selected from one or more of allantoin, beta-glucan, herba Portulacae extract, herba Centellae extract, and flos Matricariae Chamomillae extract.
The surfactant has the functions of reducing the surface tension of the skin to generate the functions of wetting, penetrating, emulsifying, dispersing and solubilizing, so that dirt attached to the surface of the skin is easy to fall off, and therefore, when the wet tissue is used for wiping the surface of the skin, the dirt on the surface of the skin can be wiped off, and the cleaning effect of the wet tissue on the skin is enhanced. In the invention, the surfactant is any one or a mixture of more than one of polysorbate-20, polysorbate-80, decyl glucoside, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine and disodium cocoyl amphodiacetate.
The bactericide plays a main role in sterilization, and comprises tea tree essential oil and polyhexamethylene biguanide, wherein the mass percentage of the polyhexamethylene biguanide is 0.1-0.5%.
The tea tree essential oil has good spectrum antibacterial effect, is a natural plant component, is mild to skin, has small stimulation and small toxic and side effects, is a good emollient and can have skin moisturizing effect. The bactericidal effect of the tea tree essential oil on partial bacteria is shown in table 1, and table 1 is the drug sensitivity data of partial bacteria on the tea tree essential oil.
TABLE 1
From the data in table 1, the tea tree essential oil has good antibacterial effect on most strains in table 1.
In consideration of the weak effect of the independent tea tree essential oil on candida albicans, the polyhexamethylene biguanide is added, and meanwhile, the metal ion chelating agent is added, so that the overall sterilization effect of the bactericide is improved through compatibility of the metal ion chelating agent with the bactericide.
The polyhexamethylene biguanide has broad spectrum, high-efficiency capability of killing microorganisms, and is nontoxic, non-corrosive and non-irritating; the polyhexamethylene biguanide is easy to dissolve in water, the aqueous solution is colorless and transparent, the polyhexamethylene biguanide has no etching effect on various materials, and the polyhexamethylene biguanide is degradable and has no pollution to the environment. The polyhexamethylene biguanide is in the liquid medicine, the mass percentage reaches 0.1% or more, so that the liquid medicine has a certain bitter taste, and when a user wipes the wet tissue to the lips, the user can feel obvious bitter taste, so that the user is reminded, the mistaken swallowing of the liquid medicine is reduced, and the liquid medicine has a good mistaken eating preventing effect especially for children. When the pH value of the liquid medicine is controlled within the range of 5.5-8.0, the bactericidal activity of the polyhexamethylene biguanide is better; when the pH is higher than 8.0, free base precipitation occurs. Therefore, in the invention, the PH value of the liquid medicine is 5.5-8.0 so as to ensure the sterilization effect.
In the invention, the metal ion chelating agent is disodium ethylenediamine tetraacetate, and the mass percentage of the disodium ethylenediamine tetraacetate is 0.01-0.1%. The metal ion chelating agent is used for chelating the metal ion polymer in the water phase so as to reduce nutrient intake sources of microorganisms, and the sterilization effect is greatly enhanced under the action of polyhexamethylene biguanide; therefore, the metal ion chelating agent and the polyhexamethylene biguanide are compatible, so that the auxiliary enhancement effect on the sterilization effect of the polyhexamethylene biguanide is achieved, and the dosage of the bactericide (polyhexamethylene biguanide) can be reduced on the premise of ensuring the sterilization effect. The metal ion chelating agent can chelate metal ions in the liquid medicine, and prevent the discoloration and deterioration of the liquid medicine caused by the metal ions.
The mass ratio of the bamboo fiber non-woven fabric to the liquid medicine carried on the bamboo fiber non-woven fabric is 1:2-1:4.
The following provides examples of formulation of the medical fluid:
example one:
propylene glycol 1%
Phenoxyethanol 1%
Polyhexamethylene biguanide 0.1%
Polysorbate-20.2%
Aloe extract 1%
Tea tree essential oil 0.1%
Chamomile extract 1%
Ethylene diamine tetraacetic acid disodium salt (EDTA-2 NA) 0.1%
The rest is RO pure water, and the pH value of the liquid medicine is 5.5.
Example two:
propylene glycol 0.5%
Sodium hyaluronate 0.05%
Phenoxyethanol 0.5%
Ethylhexyl glycerol 0.1%
Polyhexamethylene biguanide 0.5%
Polysorbate-20.2%
Vitamin E acetate 0.2%
Tea tree essential oil 0.1%
Chamomile extract 1%
Ethylene diamine tetraacetic acid disodium salt (EDTA-2 NA) 0.01%
The rest is RO pure water, and the pH value of the liquid medicine is 8.0.
Example three:
glycerol 1%
Sodium hyaluronate 0.1%
Phenoxyethanol 0.5%
Ethylhexyl glycerol 0.1%
Polyhexamethylene biguanide 0.25%
Polysorbate-20.2%
Vitamin E acetate 0.2%
Tea tree essential oil 0.1%
Chamomile extract 1%
Ethylene diamine tetraacetic acid disodium salt (EDTA-2 NA) 0.05%
The rest is RO pure water, and the pH value of the liquid medicine is 7.5.
The percentages of the components in the formula are mass percentages.
The wet wipe products of three different formulations were tested as follows
Table 2 shows:
TABLE 2
In the test, three liquid medicines with different formulas are selected to obtain the following test results:
formula 1 was used as a control test group, wherein polysorbate-20 was used as a nonionic surfactant, and the addition thereof improved the cleaning ability of the product, but the sterilization effect was less desirable because polyhexamethylene biguanide and a metal ion chelating agent were not added to formula 1.
The ethylhexyl glycerol is added in the formula 2 and serves as an important representative of the concept of no preservative, so that a smooth skin feel can be provided for the product, the moisturizing effect is obvious, in addition, the ethylhexyl glycerol can synergize the traditional preservative, the dosage of the substances in the formula is reduced, and the antibacterial effect and the safety of the product are improved. The metal ion chelating agent (disodium ethylenediamine tetraacetate) and the polyhexamethylene biguanide are added in the formula 2, so that compared with the formula 1, the sterilizing effect is remarkably improved. And the vitamin E acetate is added in the formula 2 to play a role in moisturizing and nourishing skin, so that the formula has strong oxidation resistance, increases skin barrier and prevents skin from being stimulated and damaged by the outside.
The moisturizing effect of the product can be improved in multiple aspects by adding glycerol and sodium hyaluronate into the formula 3. The glycerol has the function of absorbing water, and the moisturizing skin care product is often used for absorbing water molecules in the air so as to keep the skin cuticle covered by the moisturizing skin care product moist. The sodium hyaluronate aqueous solution has strong viscoelasticity and lubricity, can form a layer of moisturizing and breathable film when being coated on the surface of skin, keeps the skin moist and bright, and can permeate into the dermis layer to promote blood microcirculation, thereby being beneficial to the absorption of nutrients by the skin and achieving the purpose of deep water supplementing from inside to outside. The addition of the nonionic surfactant alkyl glycoside to formulation 3 increases the preservative partition coefficient, e.g., the solubility of ethylhexyl glycerol in water is poor, and the pre-dissolution of the nonionic surfactant to water increases the solubility in the aqueous phase. In addition, in the formula 3, as the metal ion chelating agent (disodium ethylenediamine tetraacetate) and the polyhexamethylene biguanide are added, compared with the formula 1, the sterilizing effect is obviously improved.
The above three formulations have no irritation to hand skin of the tester after patch test due to the addition of the antiallergic agent (flos Matricariae Chamomillae extract).
The invention also provides a preparation process of the degradable sanitary wet tissue, which comprises the following specific steps:
step 1), raw material weighing: weighing the raw materials of the wet tissue liquid medicine; for raw materials which are not easy to dissolve, pre-dissolving or pre-dispersing is carried out in advance;
step 2), liquid preparation dilution: adding part of RO pure water into a stirring tank according to the proportion, sequentially stirring the weighed or pre-dissolved or pre-dispersed raw materials into the stirring tank in a stirring state, and then adding the rest RO pure water; stirring at stirring speed of 30 rpm for 15-20 min to ensure the material to be dissolved completely and complete the preparation of the medicine liquid;
step 3), sampling and detecting the prepared liquid medicine, and respectively sampling the upper layer and the bottom layer of the liquid medicine to detect the PH value and the effective content of the polyhexamethylene biguanide of the upper layer sample and the lower layer sample; if the detected data reach the standard, carrying out the next step, otherwise, carrying out the reformulation of the liquid medicine; wherein, the effective content of polyhexamethylene biguanide is detected by ultraviolet spectrophotometry, and the detection mode is carried out according to the second method in annex B of GB/T26367-2020 "guanidine disinfectant health requirement".
Step 4), the wet towel production line folds the bamboo fiber non-woven fabric according to a preset folding mode and folding size, and the folded bamboo fiber non-woven fabric is conveyed to a liquid adding station by a conveying traction roller;
step 5), adding the prepared liquid medicine into a liquid medicine storage tank, wherein a plurality of spraying pipes are arranged on a liquid adding station and are connected with the liquid medicine storage tank through a liquid conveying pipeline; the liquid medicine is sprayed out from a spraying opening at the lower side of the spraying pipe; the bamboo fiber non-woven fabric passes through the lower part of the spray pipe, and the liquid medicine is sprayed onto the bamboo fiber non-woven fabric through the spray pipe; the mass ratio of the liquid medicine adsorbed on the bamboo fiber non-woven fabric to the bamboo fiber non-woven fabric is controlled between 1:2 and 1:4 by adjusting the liquid spraying speed of the spraying pipe;
step 6), cutting the liquid-added bamboo fiber non-woven fabric according to a set size to obtain wet tissue blocks, stacking the wet tissue blocks, and stacking a fixed number of wet tissue blocks to form a wet tissue stack;
step 7), weighing and detecting each wet towel stack, detecting metal ions, and conveying the wet towel stacks to a packaging station after the wet towel stacks are qualified;
step 8), after the wet towel stack enters a packaging station, covering a packaging film outside the wet towel stack, and labeling the packaging film to obtain a wet towel product;
the packaging film used in the step is made of OPP/PE material and is composed of a biaxially oriented polypropylene and high-pressure polyethylene composite film bag, so that the packaging film is very good in gas resistance and moisture resistance, resistant to corrosion of chemical raw materials, nontoxic, harmless, environment-friendly and recyclable;
step 9), sampling and detecting the offline wet tissue product batch, detecting indexes such as appearance, net content, PH value and microorganism number of the wet tissue, and warehousing after the detection is qualified.
The invention has the following beneficial effects:
1. according to the invention, the tea tree essential oil and the polyhexamethylene biguanide are used as main bactericides instead of alcohol, on the premise of ensuring the sterilizing effect, no alcohol irritation is generated, the tea tree essential oil and polyhexamethylene biguanide are mild to skin, are suitable for alcohol allergic people, do not contain alcohol in the liquid medicine, do not generate risk of burning or explosion, and are safe to store and transport.
2. According to the invention, the bamboo fiber non-woven fabric is used as a supporting body of the liquid medicine, and the raw material of the bamboo fiber non-woven fabric is derived from natural bamboo, so that the material is environment-friendly and degradable, and accords with the sustainable development concept; and the material is soft and comfortable, and the water absorption and the air permeability are good.
3. The liquid medicine is added with the metal ion chelating agent, and the metal ion chelating agent is compatible with the polyhexamethylene biguanide, so that the metal ion chelating agent is used for chelating metal ion polymers in the water phase, thereby reducing nutrient intake sources of microorganisms, and greatly enhancing the sterilization effect under the action of the polyhexamethylene biguanide; therefore, the metal ion chelating agent and the polyhexamethylene biguanide are compatible, so that the auxiliary enhancement effect on the sterilization effect of the polyhexamethylene biguanide is achieved, and the dosage of the bactericide (polyhexamethylene biguanide) can be reduced on the premise of ensuring the sterilization effect; the metal ion chelating agent can chelate metal ions in the liquid medicine, and prevent the discoloration and deterioration of the liquid medicine caused by the metal ions.
The present invention is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present invention, however, any change in shape or structure of the product is within the scope of the present invention, and all the products having the same or similar technical solutions as the present application are included.
Claims (9)
1. The degradable sanitary wet towel is characterized by comprising a liquid medicine and bamboo fiber non-woven fabrics for carrying the liquid medicine, wherein the liquid medicine comprises RO pure water, a humectant, a preservative, an emollient, an anti-allergic agent, a bactericide and a metal ion chelating agent;
the bactericide comprises tea tree essential oil and polyhexamethylene biguanide, wherein the mass percentage of the polyhexamethylene biguanide is 0.1-0.5%;
the metal ion chelating agent is used for chelating the metal ion polymer in the water phase so as to reduce nutrient intake sources of microorganisms and assist in improving the sterilization effect of the polyhexamethylene biguanide.
2. The degradable sanitary wet towel according to claim 1, wherein the mass ratio of the bamboo fiber nonwoven fabric to the liquid medicine carried on the bamboo fiber nonwoven fabric is between 1:2 and 1:4, and the pH value of the liquid medicine is 5.5-8.0.
3. The degradable sanitary wet towel according to claim 1, wherein the preservative is any one or more of phenoxyethanol, potassium sorbate, sodium benzoate, ethylhexyl glycerol, benzyl alcohol, and octyl glycol.
4. The degradable sanitary wet towel according to claim 1, wherein the humectant is a polyhydric alcohol humectant or a mixture of one or more of collagen, hyaluronic acid, panthenol, trehalose; the polyalcohol humectant is one or more of glycerol, propylene glycol and butanediol.
5. A degradable sanitary wet napkin as claimed in claim 1, wherein said emollient is an oil-soluble emollient or a water-soluble emollient; the oil-soluble emollient is one or more of vitamin E acetate, shea butter, tea tree essential oil, lanolin, and caprylic/capric triglyceride; the water-soluble emollient is one or more of aloe extract, peach leaf extract, flos Matricariae Chamomillae extract and Hamamelis mollis extract.
6. The degradable sanitary wet towel according to claim 1, wherein the anti-sensitization agent is any one or a mixture of several of allantoin, beta-glucan, purslane extract, centella asiatica extract and chamomile extract.
7. The degradable sanitary wet towel according to claim 1, wherein the metal ion chelating agent disodium edetate is 0.01% -0.1% by mass.
8. The degradable sanitary wet napkin as claimed in claim 1, further comprising a surfactant, wherein the surfactant is any one or a mixture of several of polysorbate-20, polysorbate-80, decyl glucoside, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine, and disodium cocoyl amphodiacetate.
9. A process for preparing a degradable sanitary wet towel, based on the degradable sanitary wet towel according to any one of claims 1-8, characterized by comprising the following specific steps:
step 1), raw material weighing: weighing the raw materials of the wet tissue liquid medicine; for raw materials which are not easy to dissolve, pre-dissolving or pre-dispersing is carried out in advance;
step 2), liquid preparation dilution: adding part of RO pure water into a stirring tank according to the proportion, sequentially stirring the weighed or pre-dissolved or pre-dispersed raw materials into the stirring tank in a stirring state, and then adding the rest RO pure water; stirring at stirring speed of 30 rpm for 15-20 min to ensure the material to be dissolved completely and complete the preparation of the medicine liquid;
step 3), sampling and detecting the prepared liquid medicine, and respectively sampling the upper layer and the bottom layer of the liquid medicine to detect the PH value and the effective content of the polyhexamethylene biguanide of the upper layer sample and the lower layer sample; if the detected data reach the standard, carrying out the next step, otherwise, carrying out the reformulation of the liquid medicine;
step 4), the wet towel production line folds the bamboo fiber non-woven fabric according to a preset folding mode and folding size, and the folded bamboo fiber non-woven fabric is conveyed to a liquid adding station by a conveying traction roller;
step 5), adding the prepared liquid medicine into a liquid medicine storage tank, wherein a plurality of spraying pipes are arranged on a liquid adding station and are connected with the liquid medicine storage tank through a liquid conveying pipeline; the liquid medicine is sprayed out from a spraying opening at the lower side of the spraying pipe; the bamboo fiber non-woven fabric passes through the lower part of the spray pipe, and the liquid medicine is sprayed onto the bamboo fiber non-woven fabric through the spray pipe; the mass ratio of the liquid medicine adsorbed on the bamboo fiber non-woven fabric to the bamboo fiber non-woven fabric is controlled between 1:2 and 1:4 by adjusting the liquid spraying speed of the spraying pipe;
step 6), cutting the liquid-added bamboo fiber non-woven fabric according to a set size to obtain wet tissue blocks, stacking the wet tissue blocks, and stacking a fixed number of wet tissue blocks to form a wet tissue stack;
step 7), weighing and detecting each wet towel stack, detecting metal ions, and conveying the wet towel stacks to a packaging station after the wet towel stacks are qualified;
step 8), after the wet towel stack enters a packaging station, covering a packaging film outside the wet towel stack, and labeling the packaging film to obtain a wet towel product;
step 9), sampling and detecting the offline wet tissue product batch, detecting indexes such as appearance, net content, PH value and microorganism number of the wet tissue, and warehousing after the detection is qualified.
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