Production process of skin-care and antibacterial white tea paper diaper

Abstract

The invention relates to the field of hygienic products, provides a production process of a skin-care and antibacterial white tea paper diaper, and solves the problems that a surface layer of an existing paper diaper does not have an antibacterial function or an antibacterial substance is directly contacted with skin to possibly cause skin irritation and anaphylaxis, and the surface layer is poor in one-way moisture guiding effect and easy to permeate back. Comprising the steps that a surface layer is prepared, an absorption body is prepared, a liquid-tight bottom layer is prepared, the surface layer, the absorption body and the liquid-tight bottom layer are compounded into a whole, the surface layer is of a double-layer structure, the upper layer is a super-imitation cotton composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer; the surface layer is obtained by the following steps: (1) dipping in a skin-care antibacterial liquid: dipping the bamboo pulp fiber layer in the skin-care antibacterial liquid, rolling and drying for later use; and (2) compounding a double-layer surface layer: laminating the super-imitation cotton composite polylactic acid fiber layer and the bamboo pulp fiber layer prepared in the step (1), bonding the periphery, and not treating the middle to obtain the surface layer.

Description

Technical Field

[0001] The invention relates to the field of sanitary products, and in particular to a production process of skin-care and antibacterial white tea diapers. Background Art

[0002] Diapers are an indispensable hygiene product in daily life, and their performance is directly related to the comfort and health of users. The surface layer of traditional diapers generally does not have antibacterial function. A small number of antibacterial products usually add antibacterial emulsions, such as tertiary amine or silver salt compounds, to the surface layer of non-woven materials. However, from a medical point of view, it is not recommended to use these chemicals for skin contact. Baby skin is delicate, the stratum corneum is not fully developed, the skin barrier function is weak, and it is more sensitive to external stimuli. The skin of people with sensitive skin is also easily affected by the external environment, causing skin problems such as red buttocks, itching, and allergies.

[0003] Chinese patent application number CN202110817966.4 discloses an anti-red buttocks diaper and its production process, including a diaper body, which includes a surface layer, a guide layer, an absorbent core and a waterproof bottom layer from the inside to the outside, and an antibacterial anti-red buttocks layer is provided on the upper surface of the surface layer near the baby's buttocks. The antibacterial anti-red buttocks layer, the tea polyphenols in the antibacterial anti-red buttocks layer are water-soluble substances, and are also weakly acidic substances, which can neutralize the corrosiveness of uric acid on the baby's delicate buttocks and balance the pH value. At the same time, tea polyphenols also have antibacterial and anti-inflammatory effects, honeysuckle clears heat and detoxifies, has antibacterial and anti-inflammatory effects, wormwood has mild cold dispersing, dehumidification and antipruritic, anti-inflammatory effects, and chamomile motor oil has antibacterial and anti-inflammatory effects, so as to effectively inhibit the growth of bacteria, protect the buttocks, and adjust the pH value. However, the antibacterial substance of the diaper is in direct contact with the skin, which may cause skin irritation and allergic reactions for infants or allergic people, destroy the balance of skin microecology, and there is also a hidden danger of cytotoxicity.

[0004] Chinese patent application number CN202311849338.X discloses an antibacterial agent and an antibacterial diaper and a preparation method thereof. The antibacterial agent is a CuO / Zn-MOF composite material. The Zn-MOF material has good dispersion performance and antibacterial effect, and has a certain specific surface area to absorb urine and keep the surface of the diaper dry. The CuO loaded on the MOF surface can be more dispersed in the antibacterial layer and can be sustained to ensure long-term antibacterial. The synergistic bactericidal effect of the two can reduce the growth of bacteria in a humid environment, and the antibacterial effect is significant, which further ensures the long-term antibacterial of the diaper. While performing efficient and lasting sterilization, it achieves good air permeability and ensures a good user experience. However, the surface layer of the diaper does not have good unidirectional moisture conduction performance, and urine cannot be quickly transferred from the surface layer to the absorbent core, which is prone to produce a damp and stuffy discomfort. Summary of the invention

[0005] Therefore, in view of the above problems, the present invention provides a production process for a skin-care and antibacterial white tea diaper, which solves the problems that the surface layer of the existing diaper does not have antibacterial function, or the antibacterial substance directly contacts the skin, which may cause skin irritation, allergic reactions, and damage the skin microecological balance, and the one-way moisture conduction effect of the surface layer is not good and it is easy to re-permeate.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A production process for a skin-care and antibacterial white tea diaper includes preparing a surface layer, preparing an absorption body, preparing a liquid-impermeable bottom layer, and laminating the surface layer, the absorption body, and the liquid-impermeable bottom layer into one body. The surface layer is a double-layer structure, the upper layer is a super imitation cotton composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer. The surface layer is obtained through the following steps: S1. Impregnating the skin-care antibacterial liquid: impregnating the bamboo pulp fiber layer in the skin-care antibacterial liquid, rolling and drying it for later use; S2. Composing the double-layer surface layer: laminating the super imitation cotton composite polylactic acid fiber layer and the bamboo pulp fiber layer obtained in step S1, bonding the four sides, and not treating the middle part to obtain the surface layer; Among them, the preparation process of the skin-care antibacterial liquid is as follows: I. Preparation of the skin-care antibacterial core material: dissolving 5 parts by weight - 10 parts by weight of perfume lemon essential oil in 100 parts by weight - 120 parts by weight of absolute ethanol, adding 10 parts by weight - 20 parts by weight of white tea antibacterial liquid, and performing ultrasonic treatment in an ultrasonic cell disruptor to obtain the skin-care antibacterial core material; II. Preparation of the skin-care antibacterial wall material: weighing 0.2 parts by weight - 1 part by weight of dopamine and dissolving it in 100 parts by weight - 120 parts by weight of HCl buffer solution, fully stirring and dissolving to form a polydopamine deposition solution, and then adding 0.2 parts by weight - 1 part by weight of polyethyleneimine. After the reaction is completed, the skin-care antibacterial wall material is obtained; III. Dropwise adding the skin-care antibacterial core material obtained in step I to the skin-care antibacterial wall material obtained in step II, stirring while adding, and dispersing evenly to obtain the skin-care antibacterial liquid.

[0007] Among them, the principle of polyethyleneimine (PEI) modifying polydopamine (PDA) is that dopamine (DOPA) undergoes self-polymerization reaction to form polydopamine (PDA), and PEI reacts with PDA through Michael addition or Schiff addition. The reaction process is as Figure 1 shown.

[0008] Furthermore, the content of the skin-care antibacterial liquid in the bamboo pulp fiber layer is 0.4 g / m 2 -0.5 g / m 2 .

[0009] Further, the super imitation cotton composite polylactic acid fiber layer is obtained by carding the super imitation cotton fiber and the polylactic acid fiber into webs respectively to obtain a super imitation cotton fiber web and a polylactic acid fiber web, then placing the polylactic acid fiber web on the upper layer and the super imitation cotton fiber web on the lower layer, and compounding and reinforcing the two layers of fibers by hydrospinning. The mass ratio of the super imitation cotton fiber to the polylactic acid fiber is (6 - 9):(1 - 4).

[0010] Among them, the super imitation cotton fiber is prepared by copolymer modification of polyester fiber and grafting hydrophilic groups in the polymer chain. The moisture regain increases from 0.4% to about 1.0%, enhancing the moisture absorption and quick-drying function of the polyester fiber itself. The super imitation cotton fiber has a soft hand feeling and is very similar to cotton fiber, and its comfort is better than that of other synthetic fibers; it has moisture absorption and quick-drying properties, has a capillary effect, absorbs moisture quickly, has a fast moisture dissipation speed, and is easy to dry.

[0011] The longitudinal surface of the polylactic acid fiber has fine grooves, which endow the fiber with better moisture reverse and moisture absorption properties, can produce a wicking effect, and can show good moisture conduction and quick-drying functions when applied to the surface layer; in addition, the polylactic acid fiber is extracted from natural plants and can be degraded under natural conditions, and is not easy to cause irritation and damage to the skin.

[0012] Further, the grammage of the super imitation cotton composite polylactic acid fiber layer is 40 g / m 2 .

[0013] Further, the grammage of the bamboo pulp fiber layer is 50 g / m 2 .

[0014] Further, the preparation process of the white tea antibacterial liquid is as follows: crush, grind, and sieve the dry white tea, mix it evenly according to the weight ratio of white tea to ethanol solution with a concentration of 50% being 1:10 - 50, raise the temperature to 60°C - 80°C, start reflux extraction, collect the filtrate, centrifuge and concentrate to obtain the white tea antibacterial liquid.

[0015] Further, the preparation process of the perfume lemon essential oil is as follows: take 100 - 120 parts by weight of fresh perfume lemon peel, after crushing, add distilled water according to the weight ratio of perfume lemon peel to distilled water being 1:10 - 15, mix evenly, extract at 100°C - 120°C for 2 - 4 hours, collect the extract, remove water with anhydrous sodium sulfate, and filter with an organic filter membrane to obtain the perfume lemon essential oil.

[0016] By adopting the foregoing technical solutions, the beneficial effects of the present invention are as follows: (1) The surface layer adopts a double-layer structure, with the upper layer being an ultra-cotton composite polylactic acid fiber layer and the lower layer being a bamboo pulp fiber layer. The pH value of the polylactic acid fiber in the upper layer is close to that of human skin. As the upper layer of the diaper surface layer, it will not irritate or damage the skin when in direct contact with the skin. It has a soft and smooth touch, low friction, absorbs moisture quickly, does not easily store moisture, and exhibits high hydrophobicity. The lower bamboo pulp fiber layer has excellent hydrophilicity and mainly serves the function of attracting moisture to infiltrate rapidly. The upper layer has high hydrophobicity and the lower layer has high hydrophilicity. The surface layer of this structure has a wetting gradient, which can drive the unidirectional transmission of urine. Urine is quickly transmitted from the surface layer to the absorption body. Even under a certain pressure, it is difficult for the liquid to seep back to the surface. The anti-seepage performance is good; (2) The lower layer of the surface layer is impregnated with a skin care antibacterial liquid, so that the antibacterial substance does not directly contact the human skin, reducing the risk of allergies, preventing skin irritation and damage, and making it safer for consumers to use; the skin care antibacterial liquid is not impregnated with the upper layer of the surface layer to avoid affecting the softness and skin-friendly feel of the upper layer; (3) After being immersed in skin care antibacterial liquid and dried, microcapsules are formed. The wall material is a hydrophilic substance modified with dopamine (PDA) by polyethyleneimine (PEI). When exposed to urine, the wall material dissolves and the core material (antibacterial component) is released, which can reduce the contact time between the antibacterial liquid and the skin and reduce cytotoxicity. PDA has abundant hydroxyl and amino groups, which can enhance the hydrophilicity of the underlying surface layer. The catechol functional groups in the PDA structure form hydrogen bonds with the hydroxyl groups on the surface of the underlying surface layer. Without the introduction of other adhesives, the microcapsules and the underlying surface layer can be firmly bonded. After PDA is deposited, a large number of polymers will be formed. The micron-sized polymers will block the surface layer. Therefore, PEI is used to modify PDA to inhibit the growth of PDA aggregates. The hydrophilicity and acid and alkali resistance of PDA are limited. PEI has a large number of hydrophilic groups. After modifying PDA, its hydrophilicity and stability are further improved; (4) The core materials of the microcapsules are lemon essential oil and white tea antibacterial liquid. Lemon essential oil (mainly composed of terpenes) not only has a pleasant fragrance, but also has antioxidant, anti-inflammatory and antibacterial activities. However, lemon essential oil has low water solubility. Lemon essential oil and white tea antibacterial liquid can self-assemble to form a colloidal dispersion, which improves the dispersion of lemon essential oil in the aqueous phase through hydrophobic interaction and hydrogen bonding without any carrier or surfactant. Moreover, the combination of lemon essential oil and white tea antibacterial liquid can show a synergistic antibacterial effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a reaction process diagram of polyethyleneimine modifying polydopamine according to the present invention; Figure 2 This is a schematic diagram of the principle of unidirectional moisture conduction of the surface layer in an embodiment of the present invention; Explanation of the numbers in the figure: 1-surface layer, 2-absorbent body, 11-upper layer, 12-lower layer. DETAILED DESCRIPTION

[0018] Example 1 refer to Figures 1 to 2 A production process of skin care and antibacterial white tea diapers, comprising preparing a surface layer, preparing an absorbent body, preparing a liquid-impermeable bottom layer, and compounding the surface layer, the absorbent body and the liquid-impermeable bottom layer into one, wherein the surface layer is a double-layer structure, the upper layer is an ultra-imitation cotton composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer, and the surface layer is obtained by the following steps: (1) Preparation of super-cotton-like composite polylactic acid fiber layer: The super-imitation cotton fiber and the polylactic acid fiber are respectively combed into a web to obtain a super-imitation cotton fiber web and a polylactic acid fiber web, and then the polylactic acid fiber web is placed on the upper layer, and the super-imitation cotton fiber web is placed on the lower layer, and the two layers of fibers are compositely reinforced by hydroentanglement to obtain the super-imitation cotton composite polylactic acid fiber layer, the mass ratio of the super-imitation cotton fiber and the polylactic acid fiber is 9:1, and the gram weight of the super-imitation cotton composite polylactic acid fiber layer is 40g / m 2 ; (2) Preparation of skin care antibacterial solution: (2-1) Preparation of skin care antibacterial core material: dissolving 5 parts by weight of perfume lemon essential oil in 100 parts by weight of anhydrous ethanol, adding 10 parts by weight of white tea antibacterial liquid, and ultrasonically treating the mixture in an ultrasonic cell disruptor to obtain the skin care antibacterial core material; The preparation process of the white tea antibacterial liquid is as follows: crushing, grinding and sieving the dried white tea, mixing the white tea and the 50% ethanol solution in a weight ratio of 1:10, raising the temperature to 60°C, starting reflux extraction, collecting the filtrate, centrifuging and concentrating, and obtaining the white tea antibacterial liquid; The preparation process of the perfume lemon essential oil is as follows: taking 100 parts by weight of fresh perfume lemon peel, crushing it, adding distilled water in a weight ratio of 1:10, mixing evenly, extracting at 100° C. for 2 hours, collecting the extract, removing water with anhydrous sodium sulfate, filtering with an organic filter membrane, and obtaining the perfume lemon essential oil; (2-2) Preparation of skin-protection antibacterial wall material: 0.2 parts by weight of dopamine was weighed and dissolved in 100 parts by weight of HCl buffer solution, and the mixture was fully stirred and dissolved to form a polydopamine deposition liquid, and then 0.2 parts by weight of polyethyleneimine was added. After the reaction was completed, the skin-protection antibacterial wall material was obtained; (2-3) adding the skin care antibacterial core material prepared in step I to the skin care antibacterial wall material obtained in step II, stirring evenly while adding, to obtain the skin care antibacterial liquid; (3) Impregnation of bamboo pulp fiber layer: Select bamboo pulp fiber spunlace nonwoven material with a grammage of 50 g / m 2 as the bamboo pulp fiber layer, immerse the bamboo pulp fiber layer in a skin care and antibacterial liquid, and the content of the skin care and antibacterial liquid in the bamboo pulp fiber layer is 0.4 g / m 2 , roll press and then dry for standby; (4) Composite double-layer surface layer: Stack the super cotton-like composite polylactic acid fiber layer obtained by step (1) and the bamboo pulp fiber layer obtained by step (3), bond the four sides, and do not process the middle part to obtain the surface layer.

[0019] Example 2 Reference Figures 1 to 2 , a production process of a skin care and antibacterial white tea diaper, including preparing a surface layer, preparing an absorption body, preparing a liquid-impermeable bottom layer, and laminating the surface layer, the absorption body and the liquid-impermeable bottom layer into one body. The surface layer is a double-layer structure, the upper layer is a super cotton-like composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer. The surface layer is obtained through the following steps: (1) Preparation of super cotton-like composite polylactic acid fiber layer: Card the super cotton-like fiber and the polylactic acid fiber into webs respectively to obtain a super cotton-like fiber web and a polylactic acid fiber web. Then place the polylactic acid fiber web on the upper layer and the super cotton-like fiber web on the lower layer, and composite and reinforce the two layers of fibers through hydroentangling to obtain the super cotton-like composite polylactic acid fiber layer. The mass ratio of the super cotton-like fiber to the polylactic acid fiber is 3:2, and the grammage of the super cotton-like composite polylactic acid fiber layer is 40 g / m 2 ; (2) Preparation of skin care and antibacterial liquid: (2-1) Preparation of skin care and antibacterial core material: Dissolve 8 parts by weight of perfume lemon essential oil in 110 parts by weight of anhydrous ethanol, add 15 parts by weight of white tea antibacterial liquid, and perform ultrasonic treatment in an ultrasonic cell disruptor to obtain the skin care and antibacterial core material; Among them, the preparation process of the white tea antibacterial liquid is as follows: Crush, grind, and sieve the dry white tea, mix it evenly according to the weight ratio of white tea to ethanol solution with a concentration of 50% of 1:30, raise the temperature to 70 °C, start reflux extraction, collect the filtrate, centrifuge and concentrate to obtain the white tea antibacterial liquid; The preparation process of the perfume lemon essential oil is as follows: Take 110 parts by weight of fresh perfume lemon peel, after crushing treatment, add distilled water according to the weight ratio of perfume lemon peel to distilled water of 1:12, mix evenly, extract at 110 °C for 3 h, collect the extract, remove water with anhydrous sodium sulfate, and filter with an organic filter membrane to obtain the perfume lemon essential oil; (2-2) Preparation of skin-protection antibacterial wall material: 0.5 parts by weight of dopamine was weighed and dissolved in 110 parts by weight of HCl buffer solution, and the mixture was fully stirred and dissolved to form a polydopamine deposition liquid, and then 0.5 parts by weight of polyethyleneimine was added. After the reaction was completed, the skin-protection antibacterial wall material was obtained; (2-3) adding the skin care antibacterial core material prepared in step I to the skin care antibacterial wall material obtained in step II, stirring evenly while adding, to obtain the skin care antibacterial liquid; (3) Impregnation of bamboo pulp fiber layer: Select a weight of 50g / m 2 The bamboo pulp fiber spunlace nonwoven material is used as the bamboo pulp fiber layer, and the bamboo pulp fiber layer is immersed in a skin care antibacterial liquid, and the content of the skin care antibacterial liquid in the bamboo pulp fiber layer is 0.45 g / m 2 , after roller pressing, drying and set aside; (4) Composite double-face layer: The super-cotton-like composite polylactic acid fiber layer prepared in step (1) and the bamboo pulp fiber layer prepared in step (3) are stacked, bonded on all sides, and the middle is not treated to obtain the surface layer.

[0020] Example 3 refer to Figures 1 to 2 A production process of skin care and antibacterial white tea diapers, comprising preparing a surface layer, preparing an absorbent body, preparing a liquid-impermeable bottom layer, and compounding the surface layer, the absorbent body and the liquid-impermeable bottom layer into one, wherein the surface layer is a double-layer structure, the upper layer is an ultra-imitation cotton composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer, and the surface layer is obtained by the following steps: (1) Preparation of super-cotton-like composite polylactic acid fiber layer: The super-imitation cotton fiber and the polylactic acid fiber are respectively combed into a web to obtain a super-imitation cotton fiber web and a polylactic acid fiber web, and then the polylactic acid fiber web is placed on the upper layer, and the super-imitation cotton fiber web is placed on the lower layer, and the two layers of fibers are compositely reinforced by hydroentanglement to obtain the super-imitation cotton composite polylactic acid fiber layer, the mass ratio of the super-imitation cotton fiber to the polylactic acid fiber is 4:1, and the gram weight of the super-imitation cotton composite polylactic acid fiber layer is 40g / m 2 ; (2) Preparation of skin care antibacterial solution: (2-1) Preparation of skin care antibacterial core material: dissolving 10 parts by weight of perfume lemon essential oil in 120 parts by weight of anhydrous ethanol, adding 20 parts by weight of white tea antibacterial liquid, and ultrasonically treating in an ultrasonic cell disruptor to obtain the skin care antibacterial core material; Among them, the preparation process of the white tea bacteriostatic liquid is as follows: crush, grind, and sieve the dried white tea, mix it evenly according to the weight ratio of white tea to ethanol solution with a concentration of 50% being 1:50, raise the temperature to 80 °C, start reflux extraction, collect the filtrate, centrifuge and concentrate to obtain the white tea bacteriostatic liquid; The preparation process of the perfume lemon essential oil is as follows: take 120 parts by weight of fresh perfume lemon peel, after crushing, add distilled water according to the weight ratio of perfume lemon peel to distilled water being 1:15, mix evenly, extract at 120 °C for 4 h, collect the extract, remove water with anhydrous sodium sulfate, and filter with an organic filter membrane to obtain the perfume lemon essential oil; (2-2) Preparation of the skin care and bacteriostatic wall material: Weigh 1 part by weight of dopamine and dissolve it in 120 parts by weight of HCl buffer solution, stir and dissolve it fully to form a polydopamine deposition solution, then add 1 part by weight of polyethyleneimine, and after the reaction ends, obtain the skin care and bacteriostatic wall material; (2-3) Drop the skin care and bacteriostatic core material obtained in step I into the skin care and bacteriostatic wall material obtained in step II, and stir evenly while adding to obtain the skin care and bacteriostatic liquid; (3) Impregnation of the bamboo pulp fiber layer: Select bamboo pulp fiber spunlace nonwoven material with a gram weight of 50 g / m 2 as the bamboo pulp fiber layer, immerse the bamboo pulp fiber layer in the skin care and bacteriostatic liquid, the content of the skin care and bacteriostatic liquid in the bamboo pulp fiber layer is 0.5 g / m 2 , roll and dry, and set aside; (4) Composite double-layer surface layer: Stack the super imitation cotton composite polylactic acid fiber layer obtained in step (1) and the bamboo pulp fiber layer obtained in step (3), bond the four sides, and do not process the middle part to obtain the surface layer.

[0021] Comparative Example 1 The difference from Example 1 is that the surface layer is a single-layer structure, which is a commercially available and well-known viscose surface layer. Other technical solutions are the same as those in Example 1.

[0022] Comparative Example 2 The difference from Example 2 is that the bamboo pulp fiber layer is not immersed in the skin care and bacteriostatic liquid. Other technical solutions are the same as those in Example 2.

[0023] The experimental test data of the surface layers of Example 1, Example 2, Example 3, Comparative Example 1, and Comparative Example 2 are shown in Table 1.

[0024] Table 1

[0025] In Table 1, the data of Example 1 and Comparative Example 1 show that the double-layer surface layer of the present technical solution has excellent anti-backflow performance; the data of Example 2 and Comparative Example 2 show that the skin care and bacteriostatic liquid of the present technical solution has excellent bacteriostatic effect, and the bacteriostatic zones all exceed 15 mm.

[0026] The test scheme for the backflow volume refers to GB / T 28004.1-2021 "Disposable Diapers - Part 1: Baby Diapers".

[0027] The test scheme for the bacteriostatic effect refers to GB 15979-2002 "Hygienic Standards for Disposable Sanitary Products" and GB / T 39101-2020 "Determination of Polypeptide Antibacterial Activity - Agar Diffusion Method". The agar diffusion method is used, and Staphylococcus aureus etc. are used as pathogenic bacteria indicator strains for the determination of inhibitory activity.

[0028] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them fall within the protection scope of the present invention.

Claims

1. A production process of a skin-care and bacteriostatic white tea diaper, comprising preparing a surface layer, preparing an absorption body, preparing a liquid-impermeable bottom layer, and laminating the surface layer, the absorption body and the liquid-impermeable bottom layer into one body, characterized in that, The surface layer is a double-layer structure, the upper layer is a super-cotton composite polylactic acid fiber layer, and the lower layer is a bamboo pulp fiber layer. The surface layer is obtained by the following steps: S1, dipping in skin care antibacterial liquid: dipping the bamboo pulp fiber layer in the skin care antibacterial liquid, rolling and drying, and setting aside; S2, composite double-layer surface: the super-cotton-like composite polylactic acid fiber layer is laminated with the bamboo pulp fiber layer obtained in step S1, and the four sides are bonded, and the middle is not treated to obtain the surface layer; Wherein, the preparation process of the skin care antibacterial liquid is: Preparation of skin care antibacterial core material: dissolve 5-10 parts by weight of perfume lemon essential oil in 100-120 parts by weight of anhydrous ethanol, add 10-20 parts by weight of white tea antibacterial liquid, and perform ultrasonic treatment in an ultrasonic cell disruptor to obtain the skin care antibacterial core material; Preparation of skin-protecting antibacterial wall material: 0.2-1 parts by weight of dopamine is weighed and dissolved in 100-120 parts by weight of HCl buffer solution, and the solution is fully stirred and dissolved to form a polydopamine deposition liquid, and then 0.2-1 parts by weight of polyethyleneimine is added. After the reaction is completed, the skin-protecting antibacterial wall material is obtained; The skin care antibacterial core material prepared in step I is added dropwise to the skin care antibacterial wall material obtained in step II, and stirred while adding to evenly disperse the core material to obtain the skin care antibacterial liquid.

2. The production process of a skin-care and bacteriostatic white tea diaper according to claim 1, characterized in that: The content of the skin care and bacteriostatic liquid in the bamboo pulp fiber layer is 0.4 g / m 2 -0.5 g / m 2 .

3. The production process of a skin-care and bacteriostatic white tea diaper according to claim 1, characterized in that: The super-imitation cotton composite polylactic acid fiber layer is obtained by combing super-imitation cotton fibers and polylactic acid fibers into webs respectively to obtain super-imitation cotton fiber webs and polylactic acid fiber webs, and then placing the polylactic acid fiber webs on the upper layer and the super-imitation cotton fiber webs on the lower layer, and then hydroentangling the two layers of fibers to composite and reinforce them. The mass ratio of the super-imitation cotton fibers and the polylactic acid fibers is (6-9):(1-4).

4. The production process of a skin-care and antibacterial white tea diaper according to claim 1, characterized in that: The grammage of the super-cotton-like composite polylactic acid fiber layer is 40 g / m 2 .

5. The production process of a skin-care and bacteriostatic white tea diaper according to claim 1, characterized in that: The grammage of the bamboo pulp fiber layer is 50 g / m 2 .

6. The production process of a skin-care and bacteriostatic white tea diaper according to claim 1, characterized in that, The preparation process of the white tea antibacterial liquid is as follows: crushing, grinding and sieving the dried white tea, mixing the white tea and 50% ethanol solution in a weight ratio of 1:10-50, raising the temperature to 60°C-80°C, starting reflux extraction, collecting the filtrate, centrifuging and concentrating to obtain the white tea antibacterial liquid.

7. The production process of a skin-care and bacteriostatic white tea diaper according to claim 1, characterized in that, The preparation process of the perfume lemon essential oil is as follows: 100-120 parts by weight of fresh perfume lemon peel is taken, crushed, and then distilled water is added in a weight ratio of 1:10-15 between the perfume lemon peel and distilled water, mixed evenly, extracted at 100-120° C. for 2-4 hours, the extract is collected, dehydrated with anhydrous sodium sulfate, filtered with an organic filter membrane, and the perfume lemon essential oil is obtained.

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