Environment-friendly water-soluble paper film, toilet seat cushion and strong-acid-resistant and strong-alkali-resistant package

Abstract

The utility model provides an environment-friendly water-soluble paper film, a toilet seat and a strong-acid-resistant and strong-alkali-resistant package, the environment-friendly water-soluble paper film comprises a water-soluble polymer layer and at least one isolation layer arranged on the water-soluble polymer layer, the water-soluble polymer layer is made of polyvinyl alcohol, the isolation layers are made of paper, and by arranging the at least one isolation layer on the water-soluble polymer layer, the water-soluble polymer layer and the isolation layers are made of paper. On one hand, after the isolation layer and the single-layer water-soluble polymer layer are matched, the mechanical strength is remarkably improved, the applicability is remarkably improved, the packaging requirements of heavy objects and corrosive substances can be met at the same time, on the other hand, the isolation layer is made of paper, the water solubility of the composite material can be effectively guaranteed, and the composite material can still be rapidly dissolved in water in the actual use process; the degradable composite base material meets the degradation requirement of the composite base material, ensures the use experience, and has the advantages of simple structure, simple production process, low manufacturing cost, complete biodegradation and convenience in popularization and implementation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of composite materials, and particularly relates to an environmentally-friendly water-soluble paper film, a toilet seat cushion and strong-acid-resistant and strong-alkali-resistant packaging. BACKGROUND

[0002] In the prior art, the environmentally-friendly water-soluble composite material refers to a material that can be hydrolyzed when contacting water. The material is usually made of renewable resources or bio-based polymers and is intended to replace traditional non-degradable plastic materials to reduce the impact on the environment. The material can be quickly dissolved into harmless substances when contacting water or is decomposed by microorganisms in the natural environment, and is widely used in the fields of livelihood, agriculture and packaging materials.

[0003] In the prior art, the water-soluble high molecular material is usually made of bio-based polymers. In actual use, the water-soluble high molecular material is made into a single-layer water-soluble film and directly used. On the one hand, the single-layer water-soluble film has low strength, and the application range of the film as a packaging material is small, which cannot meet the packaging requirements of heavy objects and corrosive substances. On the other hand, when the water-soluble film is used in combination with a non-water-soluble base material, the overall strength is significantly improved, but the water-solubility is significantly reduced. In addition, the existing bio-based water-soluble film has low bonding strength and needs to be used in combination with an adhesive, which has high manufacturing cost. Moreover, the adhesive cannot be degraded, cannot achieve 100% degradation, and still has a negative impact on the environment. Therefore, there is an urgent need to make improvements. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the technical problem that the water-soluble high molecular material is usually made of bio-based polymers in the prior art, the mechanical strength of the single-layer film product is low, the packaging requirements of heavy objects and corrosive substances cannot be met, the water-solubility of the multi-layer film product is reduced, the manufacturing cost is high, and the user experience is affected, the application provides an environmentally-friendly water-soluble paper film.

[0005] In order to solve the technical problem of the application, the application also provides a toilet seat cushion prepared from the environmentally-friendly water-soluble paper film.

[0006] In order to solve the technical problem of the application, the application also provides a strong-acid-resistant and strong-alkali-resistant packaging prepared from the environmentally-friendly water-soluble paper film.

[0007] The application adopts the following scheme: an environmentally-friendly water-soluble paper film, comprising a water-soluble high molecular layer and at least one isolation layer arranged on the water-soluble high molecular layer, the material of the water-soluble high molecular layer is polyvinyl alcohol, the material of the isolation layer is paper, and the thickness of the water-soluble high molecular layer is greater than that of the isolation layer.

[0008] In one of the embodiments, the thickness of the water-soluble high molecular layer is 25-100 mu m, and the thickness of the isolation layer is 12-140 mu m.

[0009] In one of the embodiments, the water-soluble polymer layer is prepared by a casting process or a film blowing process.

[0010] In one of the embodiments, the tensile strength of the water-soluble polymer layer is 25Mpa-50Mpa.

[0011] In one of the embodiments, the tensile strength of the water-soluble polymer layer is 25Mpa-50Mpa.

[0012] In one of the embodiments, the tear strength of the isolation layer is 55N-75N.

[0013] In one of the embodiments, the material of the isolation layer is any one of toilet paper, kraft paper and dust-free paper.

[0014] To solve the technical problems provided in the present application, the present application further provides a toilet cushion, comprising an environmentally friendly water-soluble paper film as described above.

[0015] To solve the technical problems provided in the present application, the present application further provides a strong acid and alkali resistant packaging, comprising an environmentally friendly water-soluble paper film as described above.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application provides an environmentally friendly water-soluble paper film, a toilet cushion and a strong acid and alkali resistant packaging, which comprises a water-soluble polymer layer and at least one isolation layer arranged on the water-soluble polymer layer, wherein the material of the water-soluble polymer layer is polyvinyl alcohol, and the material of the isolation layer is paper. By arranging at least one isolation layer on the water-soluble polymer layer, on the one hand, the mechanical strength of the isolation layer and the single-layer water-soluble polymer layer is significantly improved after cooperation, which significantly improves the applicability and can meet the packaging requirements of heavy objects and corrosive substances, on the other hand, the material of the isolation layer is paper, which can effectively ensure the water-solubility of the composite material, and the composite material can still be quickly water-soluble in actual use, meeting the degradation requirements of the composite substrate and ensuring the use experience. The present application has the advantages of simple structure, simple production process, low manufacturing cost, complete biodegradation and easy popularization and implementation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure diagram of an environmentally friendly water-soluble paper film of the present application when two isolation layers are arranged on the water-soluble polymer layer;

[0019] Figure 2 is a structure diagram of an environmentally friendly water-soluble paper film of the present application when one isolation layer is arranged on the water-soluble polymer layer. DETAILED DESCRIPTION

[0020] In combination Figures 1-2As shown in the content, further illustrate the technical solutions provided by the present application, an environmentally friendly water-soluble paper film, comprising a water-soluble polymer layer 1, and at least one isolation layer 2 provided on the water-soluble polymer layer 1, the material of the water-soluble polymer layer 1 is polyvinyl alcohol, the material of the isolation layer 2 is paper, the thickness of the water-soluble polymer layer 1 is greater than the isolation layer 2.

[0021] In actual implementation process, as shown in the content, two isolation layers are provided on the water-soluble polymer layer; as shown in the content, one isolation layer is provided on the water-soluble polymer layer. Figure 1 Figure 2

[0022] The present application provides an environmentally friendly water-soluble paper film, a toilet seat cushion and a strong acid and alkali resistant packaging, which comprises a water-soluble polymer layer and at least one isolation layer provided on the water-soluble polymer layer, wherein the material of the water-soluble polymer layer is polyvinyl alcohol, and the material of the isolation layer is paper. By providing at least one isolation layer on the water-soluble polymer layer, on the one hand, the mechanical strength of the isolation layer and the single-layer water-soluble polymer layer is significantly improved after cooperation, which significantly improves its applicability and can meet the packaging requirements of heavy objects and corrosive substances, on the other hand, the material of the isolation layer is paper, which can effectively ensure the water-soluble property of the composite material. In actual use process, it can still be quickly water-soluble, meet the degradation requirements of composite substrate, ensure the use experience, has the advantages of simple structure, simple production process, low manufacturing cost, complete biodegradation and easy popularization and implementation.

[0023] In the implementation process of the present embodiment, the thickness of the water-soluble polymer layer 1 is 25-100 μm, and the thickness of the isolation layer 2 is 12-140 μm.

[0024] In actual mass production process, the average thickness of the water-soluble polymer layer is 16.8 μm, and the average thickness of the isolation layer is 100 μm.

[0025] In the implementation process of the present embodiment, the water-soluble polymer layer 1 is prepared by flow casting process or blowing film process.

[0026] In the implementation process of the present embodiment, the tensile strength of the water-soluble polymer layer 1 is 25-50 Mpa.

[0027] In actual mass production process, the average tensile strength of the water-soluble polymer layer is 30 Mpa.

[0028] In the implementation process of the present embodiment, the tensile strength of the isolation layer 2 is 1.7-2.9 kN / m.

[0029] In actual mass production process, the average tensile strength of the isolation layer is 2.1 kN / m.

[0030] ​​In the implementation process of the embodiment, the tear strength of the isolation layer 2 is 55N-75N.

[0031] In the actual production process, the average tear strength of the isolation layer 2 is 66.8N.

[0032] In the actual implementation process, the water-soluble polymer layer is prepared from the following raw materials: polyvinyl alcohol 110 parts, glycerol 3 parts, talc 3 parts, Tween 80 14 parts, water 650 parts, and a backing material. The backing material is paper. First, the material body is prepared, and then the material body is coated on the backing, and after drying, a "paper-film" structured composite material is obtained.

[0033] In the implementation process of the embodiment, the material of the isolation layer 2 is any one of toilet paper, kraft paper, and dust-free paper.

[0034] To solve the technical problems proposed in the present application, the present application also provides a toilet seat cushion comprising an environmentally friendly water-soluble paper film as described above.

[0035] In the actual implementation process, as shown in Figure 1 and 2 , the material of the isolation layer of the environmentally friendly water-soluble paper film is toilet paper. After being made into a toilet seat cushion, it can provide customers with a better user experience, and at the same time, it improves the barrier property that ordinary toilet paper cannot achieve, which is more conducive to blocking bacteria. After use, it can be discarded into the toilet and flushed into the septic tank like ordinary toilet paper, without causing pollution to the environment. The product provides a better user experience and better protection effect without the need to change the user's usage habits.

[0036] To solve the technical problems proposed in the present application, the present application also provides a strong acid and strong base resistant packaging comprising an environmentally friendly water-soluble paper film as described above.

[0037] In the actual implementation process, as shown in Figure 1 , the environmentally friendly water-soluble paper film can be made into a strong acid and strong base resistant packaging. The material of the isolation layer is kraft paper. In the actual use process, kraft paper does not have the problem of not being resistant to acid and alkali or not being resistant to strong oxidizing agents. It has a great advantage for packaging strong oxidizing agents or strong acid and strong base packaging. After being put into water, the water-soluble material quickly dissolves, and water quickly penetrates the paper to achieve the use effect. After the strong acid and strong base are quantitatively packaged in it, direct feeding can be performed to avoid direct contact of the operator with the strong acid and strong base, ensuring the safety of the operation.

[0038] The application provides an environment-friendly water-soluble paper film, a toilet seat pad and a strong-acid-resistant and strong-base-resistant package, which comprises a water-soluble polymer layer and at least one isolation layer arranged on the water-soluble polymer layer, wherein the material of the water-soluble polymer layer is polyvinyl alcohol, and the material of the isolation layer is paper; by arranging the at least one isolation layer on the water-soluble polymer layer, on one hand, the mechanical strength of the isolation layer and the single-layer water-soluble polymer layer is significantly improved after cooperation, and the applicability is significantly improved, and the packaging requirements of heavy objects and corrosive substances can be met at the same time; on the other hand, the material of the isolation layer is paper, and the water solubility of the composite material can be effectively ensured; in the actual use process, the composite material can still be quickly water-soluble, the degradation requirement of the composite substrate can be met, the use experience can be ensured, and the advantages that the structure is simple, the production process is simple, the manufacturing cost is low, the composite material can be completely biodegradable, and the composite material is convenient to popularize and implement are achieved.

[0039] The above is only an embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An environmentally friendly water-soluble paper film, characterized in that, The water-soluble polymer layer (1) is made of polyvinyl alcohol, and the isolation layer (2) is made of paper. The water-soluble polymer layer has a thickness of 25 microns, and the average thickness of the isolation layer is 100 microns. The average tensile strength of the water-soluble polymer layer is 30 MPa. The average tensile strength of the isolation layer is 2.1 kN / m.

2. An environmentally friendly water-soluble paper film according to claim 1, characterized in that, The water-soluble polymer layer (1) is prepared by a casting process or a blowing film process.

3. An environmentally friendly water-soluble paper film according to claim 1, characterized in that, The tear strength of the isolation layer (2) is 55 N-75 N.

4. An environmentally friendly water-soluble paper film according to claim 1, characterized in that, The isolation layer (2) is made of any one of toilet paper, kraft paper, and dust-free paper.

5. A toilet seat, characterized by The environmentally friendly water-soluble paper film comprises the water-soluble paper film according to any one of claims 1-4.

6. A strong acid and strong base resistant package characterized in that, The environmentally friendly water-soluble paper film comprises the water-soluble paper film according to any one of claims 1-5.

Images