Pure water wet tissue for babies and preparation method of pure water wet tissue

Abstract

The invention relates to the technical field of wet tissue products and production thereof, in particular to pure water wet tissue for babies and a preparation method of the pure water wet tissue, and solves the problem that secondary pollution is prone to occurring in production of existing wet tissue products. One surface, in contact with the wet tissue body, of the outer packing piece is defined as an inner surface, one surface, far away from the wet tissue body, of the outer packing piece is defined as an outer surface, the outer packing piece sequentially comprises a heat sealing layer, a barrier layer and a printing layer from inside to outside, and the water vapor permeation amount of the outer packing piece is smaller than or equal to 1.0 g / (m < 2 >. 24h), and the oxygen permeation amount of the outer packing piece is smaller than or equal to 1cm < 3 > / (m < 2 >. 24h. 0.1 MPa).

Description

Technical Field

[0001] The invention relates to the technical field of wet wipes products and production thereof, and in particular to a baby pure water wet wipe and a preparation method thereof. Background Art

[0002] In recent years, the market size of baby wipes has continued to grow. The main driving factors include the improvement of consumers' health awareness and the improvement of quality requirements for baby products, especially the increasing safety requirements for baby wipes. Currently, many baby wipes on the market claim to be pure water and additive-free. Most of them only target ingredients such as alcohol, flavors, and fluorescent agents. However, because wet wipes contain liquids, chemical materials are often added, and the safety of the product cannot be fully guaranteed.

[0003] The applicant found in the market research that there is a main type of baby saline wet wipes on the market, which claims to be preservative-free. It uses high-temperature and high-pressure steam sterilization technology to kill the microorganisms inside the wet wipes, thereby ensuring the internal hygiene and safety of the product. However, due to the conditions of 120℃ high-temperature and high-pressure steam, the wet wipes themselves have been damaged to a certain extent, and there is an odor when the product is used;

[0004] In addition, the existing wet wipes products need to be fully dried after sterilization, otherwise new microorganisms will breed, which is easy to cause secondary pollution; but because they need to go through another packaging process, secondary pollution is more likely to occur in this production link;

[0005] At the same time, on this basis, most of its packaging needs to use materials with high barrier properties and structures such as aluminum foil, which causes material waste and environmental impact. Summary of the invention

[0006] Therefore, the present invention provides a baby pure water wet wipe and a preparation method thereof, which solves the problem of secondary pollution that is easy to occur in the production of existing wet wipe products. The wet wipe additive liquid used is EDI pure water, which is a baby pure water wet wipe without adding chemical components. After wiping the baby's hands, mouth, buttocks and other parts, it can achieve a cleaning effect, and at the same time, no chemical components will remain on the skin surface, avoiding adverse effects on the baby's health.

[0007] To achieve the above object, the present invention is achieved through the following technical solutions:

[0008] A baby pure water wet wipe, comprising a wet wipe body and an outer packaging member covering the outer surface of the wet wipe body, wherein the side of the outer packaging member contacting the wet wipe body is defined as the inner surface, and the side away from the wet wipe body is defined as the outer surface, wherein the outer packaging member comprises a heat sealing layer, a barrier layer and a printing layer from the inside to the outside, and the water vapor permeability of the outer packaging member is ≤1.0g / (m 2 ·24h), oxygen permeability ≤1cm 3 / (m 2 ·24h·0.1MPa).

[0009] Preferably, the heat sealing layer is a PE film, the barrier layer is a PET aluminized film, and the printing layer is a BOPP film or a PET film.

[0010] Preferably, the thickness of the heat-sealing layer is any value between 40-50 μm.

[0011] Preferably, the thickness of the heat-sealing layer is 45 μm.

[0012] Preferably, the thickness of the barrier layer is not less than 10 μm.

[0013] Preferably, the thickness of the barrier layer is 12 μm.

[0014] Preferably, the thickness of the printing layer is any value between 19-25 μm.

[0015] Preferably, the printing layer has a thickness of 25 μm.

[0016] A method for preparing baby pure water wet wipes comprises the following steps:

[0017] S1. preparing wet wipes body;

[0018] S2, packaging the wet wipes obtained in step S1 with the outer packaging member to form a single complete wet wipes product or a plurality of continuous complete connected or stacked wet wipes products;

[0019] S3. Sterilize the wet wipes product obtained in step S2: place the product in a closed operating box environment at a temperature of 70-80°C, and after at least 24 hours of treatment, allow the product to cool naturally to room temperature to obtain the baby pure water wet wipes.

[0020] Preferably, the processing temperature of the above step S3 is 72° C. and the processing time is 24 hours.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are:

[0022] This technical solution adopts an outer packaging made of special materials, which has high water and oxygen barrier properties, simple structure, low cost, and certain aesthetics. During production, the wet wipes base cloth is soaked in the additive liquid and then the packaging process is carried out, followed by the corresponding sterilization treatment. A dry heat sterilization method with a packaging structure is used to kill bacteria and bacterial spores in the product at high temperature in a dry environment. The sterilized product is protected by the packaging material and the hygiene indicators can be maintained in a safe state for more than two years. Compared with existing market product technologies, the product does not need to be dried after the sterilization treatment, otherwise new microorganisms will breed, causing secondary pollution, thereby improving mass production efficiency. Different from the traditional wet wipes in production process, this technical solution adopts the form of pre-packaging and then sterilizing together with the outer packaging structure, which can avoid the secondary pollution caused by packaging after the wet wipes are sterilized from the production source. As for the improvement of this related process, for the sterilization process, under the premise of ensuring product safety, a relatively low temperature treatment environment can be used during sterilization, ensuring that the wet wipes themselves will not be damaged by high temperature, and it is less likely to cause odor on the product due to sterilization; the selected material is different from the traditional high-barrier aluminum foil, which can greatly reduce material costs, reduce waste, and save energy and protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the hierarchical structure of the outer packaging of an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the production process of an embodiment of the present invention.

[0025] Reference numerals: 1. heat sealing layer; 2. barrier layer; 3. printing layer. DETAILED DESCRIPTION

[0026] The following will describe the implementation methods of the present invention in detail in conjunction with specific embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] Example

[0028] refer to Figure 1 A baby pure water wet wipe, comprising a wet wipe body and an outer packaging member wrapped around the outer surface of the wet wipe body, wherein the side of the outer packaging member contacting the wet wipe body is defined as the inner surface, and the side away from the wet wipe body is defined as the outer surface. During production, the outer packaging member is a composite film or bag-shaped member, and the outer packaging member includes a heat sealing layer, a barrier layer and a printing layer from the inside to the outside in sequence. The water vapor permeability of the outer packaging member is a water vapor permeability of ≤1.0g / (m 2 ·24h), oxygen permeability ≤1cm 3 / (m 2·24h·0.1MPa). Under this necessary condition, dry heat sterilization is performed after the wet wipes are packaged, which can effectively sterilize the internal wet wipes without affecting the integrity of the packaging structure, making it possible to achieve the special process of packaging first and sterilizing later.

[0029] Among them, m 2 is square meter, h is hour, cm 3 It is square centimeters and MPa is the pressure unit megapascal.

[0030] In this embodiment, the outer packaging is selected in the following order: the heat sealing layer is a PE film, the barrier layer is a PET aluminized film, and the printing layer is a BOPP film or a PET film. Among them, PE film, PET aluminized film and PET film are common materials for sanitary products, and BOPP film refers to a biaxially oriented polypropylene film, which is generally a multi-layer co-extruded film, which is made by co-extruding polypropylene particles into a sheet and then stretching it in both the longitudinal and transverse directions.

[0031] Correspondingly, in order to ensure the sterilization process after packaging, the material and model of the outer packaging are extremely high: the heat-sealing layer is a PE film with a thickness of 45μm, the barrier layer is a PET aluminum-coated film with a thickness of 12μm, and the printing layer is a BOPP film with a thickness of 25μm; the above selection is preferred. It should be noted that after repeated experiments, the applicant has selected the thickness of the heat-sealing layer to be any value between 40-50μm; the barrier layer needs to be no less than 10μm to ensure production; the thickness of the printing layer is any value between 19-25μm.

[0032] In the specific production process, the following preparation method is adopted.

[0033] refer to Figure 2 , a method for preparing baby pure water wet wipes, comprising the following steps:

[0034] S1. Prepare the wet wipes body; wherein, the wet wipes body can refer to the content shown in the prior application CN 112760810A of the applicant, wherein the wet wipes additive liquid is limited to EDI pure water; and the base fabric preparation can also be off-line production, simplifying the process of the above technical solution;

[0035] S2, packaging the wet wipes obtained in step S1 through the outer packaging to form a single complete or multiple complete connected or stacked wet wipes product; wherein the outer packaging is cut after packaging, and can also be cut after packaging and sterilization to form a single complete product, or a plurality of single-pack wet wipes products after stacking;

[0036] S3, sterilizing the wet wipes obtained in step S2: placing the product in a closed operating box at a temperature of 70-80°C, and after at least 24 hours of treatment, allowing the product to cool naturally to room temperature to obtain the baby pure water wet wipes. In the applicant's experiment, the preferred treatment temperature of step S3 is 72°C and the treatment time is 24 hours, which can achieve the best effect.

[0037] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A baby pure water wet wipes, characterized by: The invention comprises a wet wipe body and an outer packaging member covering the outer surface of the wet wipe body, wherein the side of the outer packaging member contacting the wet wipe body is defined as the inner surface, and the side away from the wet wipe body is defined as the outer surface, and the outer packaging member comprises a heat sealing layer, a barrier layer and a printing layer from the inside to the outside in sequence, and the water vapor permeability of the outer packaging member is ≤1.0g / (m 2 ·24h), oxygen permeability ≤1cm 3 / (m 2 ·24h·0.1MPa).

2. A baby pure water wet wipe according to claim 1, characterized in that: The heat sealing layer is a PE film, the barrier layer is a PET aluminized film, and the printing layer is a BOPP film.

3. A baby pure water wet wipe according to claim 2, characterized in that: The thickness of the heat-sealing layer is any value between 40-50 μm.

4. A baby pure water wet wipe according to claim 3, characterized in that: The thickness of the heat-sealing layer is 45 μm.

5. A baby pure water wet wipe according to claim 2, characterized in that: The thickness of the barrier layer is not less than 10 μm.

6. A baby pure water wet wipe according to claim 5, characterized in that: The thickness of the barrier layer is 12 μm.

7. A baby pure water wet wipe according to claim 2, characterized in that: The thickness of the printing layer is any value between 19-25 μm.

8. The baby pure water wet wipes according to claim 2, characterized in that: The thickness of the printing layer is 25 μm.

9. A method for preparing the baby pure water wet wipes according to claim 1, characterized in that: The following steps are involved: S1. preparing wet wipes body; S2, packaging the wet wipes obtained in step S1 with the outer packaging member to form a single complete wet wipes product or a plurality of continuous complete connected or stacked wet wipes products; S3. Sterilize the wet wipes product obtained in step S2: place the product in a closed operating box environment at a temperature of 70-80°C, and after at least 24 hours of treatment, allow the product to cool naturally to room temperature to obtain the baby pure water wet wipes.

10. The method for preparing the baby pure water wet wipes according to claim 9, characterized in that: The processing temperature of the above step S3 is 72° C. and the processing time is 24 h.

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