Alkali-resistant and acid-resistant PVC protective film

Abstract

The utility model discloses a PVC (polyvinyl chloride) alkali-resistant and acid-resistant protective film which comprises a winding drum, a PVC alkali-resistant and acid-resistant protective film main body is wound on the outer wall of the winding drum, a plurality of meshing cutting lines I and meshing cutting lines II are uniformly arranged on the PVC alkali-resistant and acid-resistant protective film main body, and the meshing cutting lines I and the meshing cutting lines II are meshed with each other. Notches are symmetrically formed in the left side and the right side of the meshing line of the first meshing cutting line and the second meshing cutting line. Through the arrangement of the first meshing cutting line, the second meshing cutting line and the notch, an accurate force application point is provided for tearing, tearing is facilitated, and meanwhile the risk that the protective film deforms and twists due to inaccurate force application is avoided; the PET release film layer and the uncovering edge are arranged, the PET release film layer protects the PVC base material from being directly exposed to an acid-base environment in the construction or use process, the PET release film layer can be rapidly stripped by utilizing the uncovering edge when the adhesive layer needs to be exposed, and the use efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective film, especially relates to a PVC alkali and acid resistant protective film. BACKGROUND

[0002] The protective film can be divided into digital product protective film, automobile protective film, household protective film, food preservation protective film and the like according to use, and is generally PVC protective film, wherein the PVC alkali and acid resistant protective film has acid and alkali resistance, and the service life is improved, but due to material reasons, when the protective film is torn, improper force can cause the protective film to stretch and deform, affecting normal use, and no protective layer is arranged on the adsorbed layer in the rolled protective film, impurities and dust are adsorbed before the protective film is adhered, affecting the firmness of adhesion. UTILITY MODEL CONTENTS

[0003] In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a PVC alkali and acid resistant protective film, which provides accurate force points for tearing by the meshing cutting lines one and two and the notch, facilitates tearing, and avoids the risk of deformation and distortion of the protective film caused by inaccurate force; the PET release film layer protects the PVC base material from being directly exposed to an acid and alkali environment during construction or use, and the PET release film layer can be quickly peeled off when the adhesive layer needs to be exposed by using the edge, improving the use efficiency.

[0004] One of the purposes of the utility model is achieved by the following technical scheme: a PVC alkali and acid resistant protective film, comprising a winding drum, a PVC alkali and acid resistant protective film body is wound on the outer wall of the winding drum, a plurality of meshing cutting lines one and a plurality of meshing cutting lines two are uniformly arranged on the PVC alkali and acid resistant protective film body, the meshing cutting lines one and the meshing cutting lines two are mutually meshed, and notches are symmetrically arranged on the left and right sides of the meshing lines of the meshing cutting lines one and the meshing cutting lines two.

[0005] The PVC alkali and acid resistant protective film body comprises a film base layer and a PET release film layer, a fireproof coating layer is arranged on the upper surface of the film base layer, a scratch-resistant film layer is arranged on the upper surface of the fireproof coating layer, an adhesive layer is arranged between the film base layer and the PET release film layer, and an electrostatic adhesion layer is arranged on the lower surface of the PET release film layer; an edge is arranged on the front side of each section of the PET release film layer. The meshing cutting lines one and two and the notch provide accurate force points for tearing, facilitate tearing, and avoid the risk of deformation and distortion of the protective film caused by inaccurate force; the PET release film layer protects the PVC base material from being directly exposed to an acid and alkali environment during construction or use, and the PET release film layer can be quickly peeled off when the adhesive layer needs to be exposed by using the edge, improving the use efficiency.

[0006] According to the PVC alkali-resistant and acid-resistant protective film, the material of the film base layer is PVC material, and stabilizers and modifiers are added during production to improve the tensile strength and weather resistance of the protective film.

[0007] According to the PVC alkali-resistant and acid-resistant protective film, the electrostatic coating is set as a PVC electrostatic film layer.

[0008] A PVC alkali-resistant and acid-resistant protective film is provided, wherein the shape of the notch is semicircular, and the center of the circle and the meshing line are on the same axis, thereby ensuring accurate tearing force.

[0009] According to the PVC alkali-resistant and acid-resistant protective film, the adhesive layer is a modified acrylate adhesive layer.

[0010] According to the PVC alkali-resistant and acid-resistant protective film, the peeling edges are all arranged on the side to facilitate the peeling of the PET release film layer.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a three-dimensional diagram of a PVC alkali-resistant and acid-resistant protective film of the utility model;

[0014] Figure 2 This is an enlarged view of point A of a PVC alkali-resistant and acid-resistant protective film of the utility model;

[0015] Figure 3 This is an enlarged view of point B of a PVC alkali-resistant and acid-resistant protective film of the utility model;

[0016] Figure 4 This is an enlarged view of point C of a PVC alkali-resistant and acid-resistant protective film of the utility model.

[0017] Legend:

[0018] 1. Winding drum; 2. PVC alkali-resistant and acid-resistant protective film body; 3. Meshing cutting line 1; 4. Meshing cutting line 2; 5. Notch; 6. Peeling edge; 201. Anti-scratch film layer; 202. Fire-retardant coating; 203. Film base layer; 204. Adhesive layer; 205. PET release film layer; 206. Electrostatic adhesion layer. DETAILED DESCRIPTION

[0019] The detailed embodiments of the utility model will be described in detail in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0020] Referring to Figure 1-4 The utility model discloses a kind of PVC alkali-resistant acid-resistant protective film, it includes, winding drum 1, winding drum 1 outer wall is wound with PVC alkali-resistant acid-resistant protective film main body 2, several meshing cutting lines one 3 and meshing cutting lines two 4 are evenly provided on PVC alkali-resistant acid-resistant protective film main body 2, meshing cutting lines one 3 and meshing cutting lines two 4 are mutually engaged, meshing line left and right sides of meshing cutting lines one 3 and meshing cutting lines two 4 are symmetrically provided with notch 5, the shape of notch 5 is semicircle, and the center is on the same axis with meshing line, guarantee tearing power accurate;

[0021] PVC alkali-resistant acid-resistant protective film main body 2 includes film base layer 203, PET release film layer 205, the material of film base layer 203 is PVC material, and stabilizer and modifier are added when producing, improve the tensile resistance and weather resistance of protective film, film base layer 203 upper surface is equipped with fireproof coating 202, the upper surface of fireproof coating 202 is equipped with scratch-proof film layer 201, adhesive layer 204 is equipped between film base layer 203 and PET release film layer 205, adhesive layer 204 is modified acrylic adhesive layer, the lower surface of PET release film layer 205 is equipped with static electricity attachment layer 206, static electricity attachment layer 206 is equipped as PVC static film layer, every section PET release film layer 205 front side is equipped with uncovering edge 6, uncovering edge 6 is all set in side, facilitate PET release film layer 205 peeling. When tearing protective film, the setting of notch 5 provides accurate power point for the separation of meshing cutting lines one 3 and meshing cutting lines two 4 on one hand because of its conspicuous feature facilitates user to find segmented tearing place, on the other hand because of the semicircle shape tearing, facilitate tearing, while avoiding the risk that protective film is deformed and distorted due to inaccurate power, by the setting of PET release film layer 205, uncovering edge 6, PET release film layer 205 protects PVC base material from direct exposure to acid and alkali environment during construction or use, PET release film layer 205 of every section protective film is equipped with uncovering edge 6, when adhesive layer 204 needs to be exposed, PET release film layer 205 can be quickly peeled off using uncovering edge 6, improve use efficiency.

[0022] Working principle: During use, when the protective film is torn, the setting of the notch 5 is convenient for the user to find the segmented tearing point due to its conspicuous feature. On the other hand, the semicircular shape provides an accurate force point for tearing to separate the meshing cutting line 1 3 and the meshing cutting line 2 4, which is convenient for tearing and avoids the risk of deformation and distortion of the protective film due to inaccurate force. The PET release film layer 205 protects the PVC substrate from direct exposure to acid and alkali environment during construction or use. The PET release film layer 205 of each section of the protective film is provided with a peeling edge 6. When the adhesive layer 204 needs to be exposed, the peeling edge 6 can be used to quickly peel off the PET release film layer 205, thereby improving the use efficiency.

[0023] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A PVC alkali-resistant and acid-resistant protective film, comprising: A winding drum (1), characterized in that a PVC alkali-resistant and acid-resistant protective film body (2) is wound around the outer wall of the winding drum (1), a plurality of meshing cutting lines (3) and meshing cutting lines (4) are evenly provided on the PVC alkali-resistant and acid-resistant protective film body (2), the meshing cutting lines (3) and the meshing cutting lines (4) are meshed with each other, and notches (5) are symmetrically provided on the left and right sides of the meshing lines of the meshing cutting lines (3) and the meshing cutting lines (4); The PVC alkali-resistant and acid-resistant protective film body (2) comprises a film base (203) and a PET release film layer (205); the upper surface of the film base (203) is provided with a fireproof coating (202); the upper surface of the fireproof coating (202) is provided with an anti-scratch film layer (201); an adhesive layer (204) is provided between the film base (203) and the PET release film layer (205); the lower surface of the PET release film layer (205) is provided with an electrostatic adhesion layer (206); and each section of the PET release film layer (205) is provided with a peeling edge (6) on the front side.

2. A PVC alkali-resistant and acid-resistant protective film according to claim 1, characterized in that: The film base layer (203) is made of PVC material, and a stabilizer and a modifier are added during production.

3. The PVC alkali-resistant and acid-resistant protective film according to claim 1, characterized in that: The electrostatic coating (206) is configured as a PVC electrostatic film layer.

4. The PVC alkali-resistant and acid-resistant protective film according to claim 1, characterized in that: The shape of the notch (5) is semicircular, and the center of the circle and the meshing line are on the same axis.

5. The PVC alkali-resistant and acid-resistant protective film according to claim 1, characterized in that: The adhesive layer (204) is a modified acrylate adhesive layer.

6. The PVC alkali-resistant and acid-resistant protective film according to claim 1, characterized in that: The peeling edges (6) are all arranged on the side edges.

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