Smooth water transfer paper structure

By designing a special structure for the base film, base paper, release layer, and graphic layer, the problem of deformation or friction damage to water transfer paper during removal is solved, achieving pattern integrity and abrasion resistance, and enhancing the performance of water transfer paper.

CN223934418UActive Publication Date: 2026-02-24WEIHAI GUANYE NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520716837.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-02-24
Estimated Expiration
2035-04-16

AI Technical Summary

Technical Problem

Water transfer printing paper is prone to deformation or friction during removal, which can damage the pattern and is difficult to solve effectively with existing technology.

Method used

It adopts a special structural design of bottom film, bottom paper, release layer and graphic layer. The bottom paper and release layer are respectively stuck in the slot, and the graphic layer is located on the upper surface of the bottom film. The bottom paper and graphic layer are lifted by the two ends of the bottom film to avoid deformation or friction damage when they are removed.

Benefits of technology

It effectively prevents the water transfer paper from deforming or being damaged by friction during the removal process, maintaining the integrity and gloss of the pattern, and enhancing its abrasion resistance and adhesion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cambered surface transfer paper, in particular to a smooth type water transfer paper structure which comprises a base material layer, the base material layer comprises a bottom film and bottom paper, first clamping grooves are formed in the two sides of the interior of the bottom film, second clamping grooves are formed in the two sides of the interior of the bottom film, the first clamping grooves are formed over the second clamping grooves, and the bottom paper is fixedly connected into the second clamping grooves. The lower surface of the bottom paper is fixedly connected with the inner wall of the bottom film, a release layer is fixedly connected to the interior of the first clamping groove, and an image-text layer is fixedly connected to the upper surface of the release layer. According to the water transfer printing paper, the bottom film is connected with the bottom paper, the release layer and the image-text layer, the bottom paper and the release layer are respectively clamped in the clamping groove I and the clamping groove II, the image-text layer is positioned on the upper surface of the bottom film, after the water transfer printing paper enters water, the release layer is dissolved, the bottom paper is separated from the image-text layer, and the bottom paper and the image-text layer are lifted by using two ends of the bottom film to avoid deformation or friction damage to patterns when taken out.
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Description

Technical Field

[0001] This utility model relates to the field of curved surface transfer paper technology, and in particular to a smooth water transfer paper structure. Background Technology

[0002] Water transfer paper is a special printing material used to transfer images to the surface of various objects using a water transfer printing process. The image is separated from the paper by immersion in water, then laid flat and adhered to the target object's surface, and finally cured by drying or heating. It is widely used in product decoration, personalized customization, industrial production, and artistic creation.

[0003] In the prior art, water transfer printing paper usually includes a substrate layer, which supports the graphic layer and release layer. During use, the release layer dissolves in water, causing the graphic layer to separate from the base paper. After separation, the water transfer printing paper needs to be removed from the water. During the removal process, the base paper and graphic layer are easily deformed or rubbed, resulting in damage to the graphic. Therefore, in this utility model, a water transfer printing paper structure is designed to facilitate the removal of the water transfer paper from the water and keep the water transfer paper from deformation, reducing damage to the graphic caused by friction. Summary of the Invention

[0004] In view of this, the present invention provides a smooth water transfer paper structure. The main technical problem to be solved is to facilitate the removal of the water transfer paper from the water and keep the water transfer paper from deformation, thereby reducing the damage to the pattern caused by friction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a smooth water transfer printing paper structure, comprising a substrate layer, the substrate layer comprising a bottom film and a bottom paper, a first slot is formed on both sides of the inside of the bottom film, a second slot is formed on both sides of the inside of the bottom film, the first slot is positioned directly above the second slot, the bottom paper is fixedly connected inside the second slot, the lower surface of the bottom paper is fixedly connected to the inner wall of the bottom film, a release layer is fixedly connected inside the first slot, and a graphic layer is fixedly connected to the upper surface of the release layer.

[0006] By adopting the above technical solution, the base film is used to connect the base paper, release layer, and graphic layer. The two ends of the base paper are stuck inside the second slot, and the two ends of the release layer are stuck inside the first slot. The graphic layer is placed on the upper surface of the base film and connected to the release layer. After the water transfer paper is placed in water, the base paper separates from the graphic layer after the release layer dissolves. At this time, removing the paper can easily cause deformation or friction between the base paper and the graphic layer, resulting in damage to the pattern. However, by directly lifting the base paper and graphic layer through the two ends of the base film, deformation or excessive friction during the removal process can be prevented, thus avoiding damage to the pattern.

[0007] As a further description of the above technical solution: the release layer includes an adhesive film layer and a cover oil layer. The two ends of the adhesive film layer are fixedly connected to the inside of the card slot one. The lower surface of the adhesive film layer is fixedly connected to the upper surface of the backing paper. The lower surface of the cover oil layer is fixedly connected to the upper surface of the adhesive film layer. The two ends of the cover oil layer are fixedly connected to the inside of the card slot one.

[0008] By adopting the above technical solution, the release layer connects the substrate layer and the graphic layer, and the adhesive film layer can be easily separated from the substrate layer and the graphic layer after it dissolves in water.

[0009] As a further description of the above technical solution: the graphic layer includes pattern paper, the lower surface of the pattern paper is fixedly connected to the upper surface of the cover oil layer, both ends of the pattern paper are fixedly connected to the upper surface of the base film, a water-soluble adhesive is fixedly connected to the upper surface of the pattern paper, and a protective film is fixedly connected to the upper surface of the water-soluble adhesive.

[0010] By adopting the above technical solution, pattern paper is used to carry and transfer patterns, water-soluble adhesive is activated by water, making it easy for the pattern to adhere to the surface of the object, and protective film protects the pattern and enhances its durability.

[0011] As a further description of the above technical solution: the bottom film is a polyester film material, and the backing paper is a polypropylene material.

[0012] By adopting the above technical solutions, polyester film materials have the characteristics of good moisture resistance and non-deformation, while polypropylene materials have the characteristics of water resistance, temperature resistance, tear resistance and non-deformation.

[0013] As a further description of the above technical solution: the adhesive film layer is made of polyvinyl alcohol, and the cover oil layer is an aqueous cover oil.

[0014] By adopting the above technical solutions, polyvinyl alcohol materials have good film-forming and adhesion properties, and water-based cover oil has the characteristics of being environmentally friendly and safe.

[0015] As a further description of the above technical solution: the pattern paper is a water transfer printing ink material, and the protective film is a polyethylene material.

[0016] By adopting the above technical solutions, the water transfer printing ink material has good adhesion, and the polyethylene material has good transparency, adhesion and weather resistance.

[0017] By employing the above technical solution, the smooth water transfer printing paper structure of this utility model has at least the following beneficial effects:

[0018] 1. Compared with the prior art, this smooth water transfer paper structure has a base film that connects the base paper, release layer and graphic layer. The base paper and release layer are respectively stuck in slot one and slot two. The graphic layer is located on the upper surface of the base film. After the water transfer paper is immersed in water, the release layer dissolves and the base paper separates from the graphic layer. The base paper and graphic layer are lifted by using both ends of the base film to avoid deformation or friction damage to the pattern when removing it.

[0019] 2. Compared with the existing technology, this smooth water transfer paper structure, through the use of specific materials in the release layer and the graphic layer, enables the water transfer paper to have good water resistance, maintain the integrity of the pattern after immersion in water, enhance the wear resistance and gloss of the pattern, and also have good film-forming and adhesion properties, ensuring that the pattern remains smooth and is not easily deformed during the transfer process. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a smooth water transfer paper structure proposed in this utility model;

[0021] Figure 2 This is a cross-sectional view of a smooth water transfer paper structure proposed in this utility model;

[0022] Figure 3 This is an exploded view of a smooth water transfer paper structure proposed in this utility model;

[0023] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0024] Legend:

[0025] 1. Substrate layer; 101. Bottom film; 102. Backing paper; 103. Card slot one; 104. Card slot two; 2. Release layer; 201. Adhesive film layer; 202. Cover oil layer; 3. Graphic layer; 301. Pattern paper; 302. Water-soluble adhesive; 303. Protective film. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] Reference Figure 1-4 The present invention provides a smooth water transfer paper structure, including a substrate layer 1, which provides support and stability. The substrate layer 1 includes a bottom film 101 and a bottom paper 102. The bottom film 101 has a first slot 103 on both sides of its interior and a second slot 104 on both sides of its interior. The first slot 103 is located directly above the second slot 104.

[0028] In the process of making the base film 101, high-quality polyester (PET) resin is first selected as the raw material. The PET resin granules are heated to a molten state (about 280°C). The molten PET resin is extruded into a thick sheet through an extruder, which becomes the initial shape of the base mold 101. The inside of the base film 101 is cut into slot 101 and slot 2 104 by cutting. Then, it is rolled into a thin sheet by a casting roller. The two ends of the base film 101 are cut into L-shapes so that the two ends of the base film 101 can be easily extracted during use. The bottom paper 102 is then fixedly connected to the inside of slot 2 104. The lower surface of the bottom paper 102 is fixedly connected to the inner wall of the base film 101. The bottom paper 102 is placed between slots 2 104, and the base film 101 supports and protects the bottom of the bottom paper 102 to prevent the bottom paper 102 from deforming during extraction.

[0029] A release layer 2 is fixedly connected inside the card slot 103. Release layer 2 dissolves in water, separating the graphic layer 3 from the base paper 102. The graphic layer 3 is fixedly connected to the upper surface of release layer 2, and is used to support the transferred pattern. Release layer 2 includes an adhesive film layer 201 and a cover oil layer 202. Both ends of the adhesive film layer 201 are fixedly connected inside the card slot 103, and the lower surface of the adhesive film layer 201 is fixedly connected to the upper surface of the base paper 102. The lower surface of the cover oil layer 202 is fixedly connected to the upper surface of the adhesive film layer 201, and both ends of the cover oil layer 202 are fixedly connected inside the card slot 103.

[0030] The graphic layer 3 includes pattern paper 301. The lower surface of pattern paper 301 is fixedly connected to the upper surface of the cover oil layer 202, and both ends of pattern paper 301 are fixedly connected to the upper surface of the base film 101. A water-soluble adhesive 302 is fixedly connected to the upper surface of pattern paper 301. The water-soluble adhesive 302 is activated by water, which facilitates the adhesion of the pattern to the object surface. A protective film 303 is fixedly connected to the upper surface of the water-soluble adhesive 302. The base film 101 is made of polyester film material. Polyester film material has the characteristics of good moisture resistance and non-deformation, which can protect the base paper 102 from deformation during the removal process.

[0031] The base paper 102 is made of polypropylene, which is water-resistant, temperature-resistant, tear-resistant, and not easily deformed. The base paper 102 itself can also achieve the effect of not being easily deformed, which enhances the effect of preventing pattern deformation during the water transfer printing process. The adhesive film layer 201 is made of polyvinyl alcohol, which has good film-forming properties and adhesion, and can be dissolved in water, which promotes the separation of the base paper 102 and the pattern paper 301. The cover oil layer 202 is a water-based cover oil, and the pattern paper 301 is a water transfer printing ink material. The water transfer printing ink material has good adhesion, which makes it easy for the pattern to be adsorbed onto the surface of the object. The protective film 303 is made of polyethylene, which has good transparency, adhesion, and weather resistance.

[0032] Working principle: When in use, the water transfer paper is placed in water. At this time, the adhesive film layer 201 dissolves in the water, causing the base paper 102 and the image layer 3 to separate in the water. After separation, the base paper 102 and the image layer 3 need to be removed and taken out of the water. At this time, the base paper 102 and the image layer 3 can be pulled up by the two ends of the base film 101. During the removal process, the base film 101 protects the base paper 102 as a whole and prevents it from deforming. The material design of the base paper 102 itself can also enhance the anti-deformation effect, and the two ends of the base film 101 make it easy to quickly and conveniently separate the base paper 102 and the image layer 3. Remove it from the water to prevent direct contact between the backing paper 102 and the graphic layer 3, which could cause friction between the backing paper 102 and the graphic layer 3 or deformation due to direct contact. After removal, the hydrosol 302 is activated by water. At this time, the protective film 303, the hydrosol 302, and the pattern can be removed from the surface of the pattern paper 301. Align the pattern with the object surface so that the pattern adheres to the object surface, while the protective film 303 remains on the outside of the pattern. The protective film 303 is made of polyethylene material, which has good transparency, adhesion, and weather resistance, and can protect the pattern.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smooth water transfer printing paper structure, comprising a substrate layer (1), characterized in that: The substrate layer (1) includes a base film (101) and a backing paper (102). The base film (101) has a slot 1 (103) on both sides inside and a slot 2 (104) on both sides inside. The slot 1 (103) is located directly above the slot 2 (104). The backing paper (102) is fixedly connected inside the slot 2 (104). The lower surface of the backing paper (102) is fixedly connected to the inner wall of the base film (101). A release layer (2) is fixedly connected inside the slot 1 (103). A graphic layer (3) is fixedly connected to the upper surface of the release layer (2).

2. The smooth water transfer paper structure according to claim 1, characterized in that: The release layer (2) includes an adhesive film layer (201) and a cover oil layer (202). The two ends of the adhesive film layer (201) are fixedly connected to the inside of the card slot (103). The lower surface of the adhesive film layer (201) is fixedly connected to the upper surface of the backing paper (102). The lower surface of the cover oil layer (202) is fixedly connected to the upper surface of the adhesive film layer (201). The two ends of the cover oil layer (202) are fixedly connected to the inside of the card slot (103).

3. The smooth water transfer paper structure according to claim 1, characterized in that: The graphic layer (3) includes pattern paper (301), the lower surface of the pattern paper (301) is fixedly connected to the upper surface of the cover oil layer (202), the two ends of the pattern paper (301) are fixedly connected to the upper surface of the base film (101), the upper surface of the pattern paper (301) is fixedly connected to a hydrosol (302), and the upper surface of the hydrosol (302) is fixedly connected to a protective film (303).

4. The smooth water transfer paper structure according to claim 1, characterized in that: The base film (101) is a polyester film material, and the base paper (102) is a polypropylene material.

5. The smooth water transfer paper structure according to claim 2, characterized in that: The adhesive film layer (201) is made of polyvinyl alcohol, and the cover oil layer (202) is made of water-based cover oil.

6. The smooth water transfer paper structure according to claim 3, characterized in that: The pattern paper (301) is a water transfer printing ink material, and the protective film (303) is a polyethylene material.