阅读说明：本技术 离型纸制备方法及离型纸 (Release paper preparation method and release paper ) 是由 曾冲林 张锋 蔡安清 于 2020-03-27 设计创作，主要内容包括：本发明适用于离型纸生产工艺领域,公开了一种离型纸制备方法及离型纸,包括以下步骤：提供淋膜料、原纸和压花设备,压花设备包括幻彩辊；将淋膜料淋到所述幻彩辊；将原纸覆到所述幻彩辊,压花设备对原纸和幻彩辊施加压力以使幻彩辊上的幻彩纹压制到原纸,形成幻彩纹层,得到幻彩离型纸；对所述幻彩离型纸进行压花处理,形成花纹层,得到具有幻彩纹层和花纹层的离型纸；该离型纸制备方法制备能够制备出具有幻彩纹和花纹的离型纸,幻彩纹的存在使得离型纸具有彩色效果,在不同强度的光线下产生的视觉效果不一样,花纹的存在又进一步丰富了离型纸产品的视觉效果,使离型纸产品变得更加丰富多彩,还扩大了离型纸产品的应用范围。(The invention is suitable for the field of release paper production process, and discloses a release paper preparation method and release paper, which comprise the following steps: providing a laminating material, base paper and embossing equipment, wherein the embossing equipment comprises a multicolor roller; spraying the laminating material to the multicolor roller; covering the base paper on the magic color roller, and applying pressure to the base paper and the magic color roller by embossing equipment to press the magic color patterns on the magic color roller to the base paper to form a magic color pattern layer to obtain the magic color release paper; embossing the colorful release paper to form a pattern layer to obtain release paper with a colorful pattern layer and a pattern layer; the release paper with the colorful patterns and the patterns can be prepared by the preparation method of the release paper, the existence of the colorful patterns enables the release paper to have a colorful effect, visual effects generated under light rays with different intensities are different, the existence of the patterns further enriches the visual effects of the release paper product, the release paper product becomes more colorful, and the application range of the release paper product is enlarged.)

1. The preparation method of the release paper is characterized by comprising the following steps:

providing a laminating material, base paper and embossing equipment, wherein the embossing equipment comprises a multicolor roller;

spraying the film spraying material to the multicolor roller;

covering the base paper on the magic color roller, and pressing the base paper and the magic color roller by the embossing equipment to press the magic color patterns on the magic color roller to the base paper to form a magic color pattern layer to obtain the magic color release paper;

and embossing the colorful release paper to form a pattern layer, so as to obtain the release paper with the colorful pattern layer and the pattern layer.

2. The method for preparing release paper according to claim 1, wherein the step of spraying the coating material onto the magic color roller further comprises the following steps: and heating the magic color roller to enable the surface temperature of the magic color roller to reach 20-40 ℃.

3. The method for preparing the release paper, according to claim 2, characterized in that the heating of the magic color roller is implemented by: and injecting hot water into the multicolor roller, wherein the temperature of the hot water is 30-50 ℃.

4. The method for preparing the release paper according to claim 1, wherein the laminating material is prepared by taking 85% of polypropylene and 15% of polyethylene as raw materials.

5. The method for preparing the release paper according to claim 1, wherein the step of pouring the film material onto the magic color roller is implemented as follows: providing a film coating machine, feeding the film coating material into the film coating machine, and extruding the film coating material from the film coating machine to the multicolor roller.

6. The method for preparing the release paper according to claim 5, wherein the extrusion temperature of the laminating material is 260 to 290 ℃.

7. The method for preparing release paper according to claim 1, wherein the multicolor roll comprises a roll body and a multicolor nickel sheet wrapping the roll body.

8. The method for preparing the release paper as claimed in claim 1, wherein the embossing treatment on the fantasy-colored release paper finished product is implemented by the following steps:

providing a patterned roller, mounting the patterned roller to the embossing apparatus;

heating the pattern roller, wherein the surface temperature of the pattern roller reaches 120-130 ℃ so that the laminating material on the multicolor release paper is in a semi-molten state;

and applying pressure to the pattern roller to press the patterns on the pattern roller to the colorful release paper to form the pattern layer.

9. A release paper is characterized in that: the release paper is prepared by the preparation method of any one of claims 1 to 8, and comprises base paper, a magic color pattern layer arranged on the base paper and a pattern layer arranged on the magic color pattern layer.

Technical Field

The invention relates to the technical field of release paper production processes, in particular to a release paper preparation method and release paper.

Background

The release paper is also called as isolation paper, release paper and silicone oil paper. The release paper is anti-sticking paper which can prevent the adhesion of the prepreg and can also protect the prepreg from being polluted. The release paper prepared by the existing preparation method of the release paper has only one color, and the generated visual effect is single.

Disclosure of Invention

The first purpose of the invention is to provide a method for preparing release paper, which aims to solve the technical problem that the release paper prepared by the existing method for preparing release paper has only one color.

In order to achieve the purpose, the invention provides the following scheme:

a preparation method of release paper comprises the following steps:

providing a laminating material, base paper and embossing equipment, wherein the embossing equipment comprises a multicolor roller;

spraying the film spraying material to the multicolor roller;

covering the base paper on the magic color roller, and pressing the base paper and the magic color roller by the embossing equipment to press the magic color patterns on the magic color roller to the base paper to form a magic color pattern layer to obtain the magic color release paper;

and embossing the colorful release paper to form a pattern layer, so as to obtain the release paper with the colorful pattern layer and the pattern layer.

As an improvement, before the coating material is coated on the magic color roller, the following procedures are further included: and heating the magic color roller to enable the surface temperature of the magic color roller to reach 20-40 ℃.

As an improvement, the heating of the magic color roller is implemented by: and injecting hot water into the multicolor roller, wherein the temperature of the hot water is 30-50 ℃.

As an improvement mode, the laminating material is prepared by taking 85% of polypropylene and 15% of polyethylene as raw materials.

As an improvement, the embodiment of spraying the coating material to the magic color roller is as follows: providing a film coating machine, feeding the film coating material into the film coating machine, and extruding the film coating material from the film coating machine to the multicolor roller.

As an improvement mode, the extrusion temperature of the laminating material is 260-290 ℃.

As an improvement, the multicolor roller comprises a roller body and a multicolor nickel sheet wrapping the roller body.

As an improvement, the embodiment of embossing the multicolor release paper finished product is as follows:

providing a patterned roller, mounting the patterned roller to the embossing apparatus;

heating the pattern roller, wherein the surface temperature of the pattern roller reaches 120-130 ℃ so that the laminating material on the multicolor release paper is in a semi-molten state;

and applying pressure to the pattern roller to press the patterns on the pattern roller to the colorful release paper to form the pattern layer.

The second purpose of the invention is to provide a release paper, which is prepared by the preparation method, and the release paper comprises base paper, a magic color pattern layer arranged on the base paper and a pattern layer arranged on the magic color pattern layer.

The release paper with the colorful patterns and the patterns prepared by the preparation method of the release paper provided by the invention has the advantages that the release paper with the colorful patterns and the patterns has colorful effects, the visual effects generated under different intensities of light are different, the visual effects of the release paper product are further enriched due to the existence of the patterns, the release paper product is more colorful, and the application range of the release paper product is expanded.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a flow chart of a method for preparing release paper according to an embodiment of the present invention;

FIG. 2 is a flow chart of embossing treatment for the multicolor release paper provided by the embodiment of the invention;

fig. 3 is a side view of a release paper provided in an embodiment of the present invention.

The reference numbers illustrate:

100. release paper; 11. base paper; 12. a magic color pattern layer; 13. a pattern layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to fig. 3, a method for preparing release paper according to an embodiment of the present invention includes the following steps:

s10, providing a laminating material, a base paper 11 and an embossing device, wherein the embossing device comprises a multicolor roller, the multicolor roller comprises a roller body and a multicolor nickel sheet wrapping the roller body, the laminating material is prepared from 85% of polypropylene and 15% of polyethylene, the hardness of the laminating material is suitable for pressing multicolor grains of the multicolor nickel sheet, and the multicolor grains of the multicolor roller can be better pressed on the base paper 11.

S20, heating the magic color roller to enable the surface temperature of the magic color roller to reach 20-40 ℃, preferably 25 ℃, wherein the heating mode is as follows: hot water is injected into the interior of the magic color roller, the temperature of the hot water is 30-50 ℃, preferably 35 ℃, and the heating of the magic color roller is realized because the magic color roller can keep the magic color stripes on the magic color roller from weakening only at a certain temperature, so that the quality and the effect of the magic color stripes pressed on the base paper 11 are higher.

S30, spraying the film coating material onto a magic color roller, wherein the implementation mode is as follows: and providing a film coating machine, feeding the film coating material into the film coating machine, extruding the film coating material into the multicolor roll by the film coating machine, wherein the extrusion temperature of the film coating material is 260-290 ℃, preferably 260 ℃, and under the temperature state, the effect of the multicolor grains pressed on the base paper 11 is basically consistent with that of the multicolor grains of the multicolor roll, and the product quality is higher.

S40, covering the base paper 11 on a magic color roller, and pressing the base paper 11 and the magic color roller by embossing equipment to press the magic color patterns on the magic color roller to the base paper 11 to form a magic color pattern layer 12, thus obtaining the magic color release paper. The embossing equipment generally applies less pressure to the base paper 11 and the magic color roll than to press ordinary patterns, and the magic color roll is generally subjected to a plane pressure of 1N-3N. The release paper with the colorful grain layer 12 has a colorful effect, visual effects generated under light with different intensities are different, the visual effect of the release paper product is greatly enriched, the release paper product becomes more colorful, and the application range of the release paper product is also expanded.

S50, embossing the colorful release paper to form a pattern layer 13 to obtain the release paper 100 with the colorful layer 12 and the pattern layer 13, wherein the embossing process is implemented as follows:

s51, providing a pattern roller, installing the pattern roller to an embossing device, wherein the pattern roller comprises a roller body and patterns arranged on the roller body, the pattern roller and a colorful roller are used in a replacement mode, when release paper with a colorful layer 12 needs to be prepared, the colorful roller can be installed on the embossing device, when release paper with a pattern layer 13 needs to be prepared, the colorful roller can be installed on the embossing device, at the moment, parameters of the embossing device need to be adjusted, for example, the pressure output to the pattern roller and the speed of the embossing device are adjusted. Of course, two sets of embossing equipment can be designed, one set of the embossing equipment is specially used for preparing the release paper with the multicolor layer 12, and the other set of the embossing equipment is specially used for preparing the release paper with the pattern layer 13.

S52, heating the pattern roller, wherein the surface temperature of the pattern roller reaches 120-130 ℃ to make the laminating material on the colorful release paper in a semi-molten state, and the pattern roller is heated in the following mode: and injecting heat conducting oil into the multicolor roller, wherein the temperature of the heat conducting oil is 150-160 ℃.

S53, applying pressure to the pattern roller to press the patterns on the pattern roller onto the colorful release paper to form the pattern layer 13.

In practical application, the pattern layer 13 can be further pressed on the base paper 11 pressed with the colorful pattern layer 12 according to the actual needs of customers, namely, the patterns required by the customers are pressed on the colorful pattern layer 12, so that the visual effect of the release paper product is greatly enriched, and the release paper product becomes more colorful.

The release paper 100 prepared by the preparation method comprises base paper 11, a magic color pattern layer 12 arranged on the base paper 11 and a pattern layer 13 arranged on the magic color pattern layer 12.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.