CN101760146A - Polyolefin material paint spraying and baking masking tape - Google Patents

Abstract

The polyolefin paint spraying and baking masking tape provided by the invention is convenient to operate and strong in tearing property, is ultrahigh in temperature resistance, is ultra-soft in material, can be used according to the wire drawing shapes at different angles, and is beneficial to environmental protection. The invention adds a polyolefin copolymer layer on the upper surface of an acrylic adhesive layer, adds an anti-sticking coating on the upper surface of the polyolefin copolymer layer, the anti-sticking coating is anti-sticking treated by a non-silicone oil system, and the polyolefin copolymer layer is formed by copolymerizing ethylene and propylene. The invention has the characteristics of super softness, heat resistance and no pollution, can increase the adhesion to materials, is particularly suitable for building or indoor paint spraying or wire drawing, spraying and baking paint in the automobile industry, and meets the requirements of environmental protection, no pollution and recyclability.

Description

Polyolefin spray paint masking tape

technical field

The invention relates to an industrial adhesive tape, in particular to a masking adhesive tape used for spraying paint in buildings or indoors, or used in the automotive industry to spray paint on pull wires.

Background technique

In the prior art, there are many kinds of adhesive tapes for various purposes. When pulling wires in the automotive industry and building interior decoration, decoration engineering operations such as painting are often required, and shielding is required to achieve painting operations, and special protective materials are required. Nowadays, materials such as newspapers, plastic sheets, and plastic films are widely used to cover the surface of the work object to achieve the purpose of protective covering; plastic tape is also used for covering, but the plastic tape is too sticky and easy to be on the surface to be covered Stickies are left, these measures are a waste of man-hours, the protection effect is poor, and the cover is not tight, the adhesive tape of the prior art cannot meet this requirement, cannot reach the normal cover effect, and needs to be improved.

Contents of the invention

Aiming at the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a polyolefin material spray paint masking tape with convenient operation and strong tearability, which has super high temperature resistance (above 150°C) and super soft material , can be used according to different angles of drawing wire shape, get rid of the shortcomings of traditional products such as: paper, PVC plastic film, which is not tightly covered, and is conducive to environmental protection, because PVC plastic film is toxic, cannot be burned and recycled.

In order to achieve the above object, the polyolefin material spray paint masking tape of the present invention is realized through the following technical scheme:

A masking tape made of polyolefin material sprayed with baking paint, a polyolefin copolymer layer is added on the surface of the acrylic adhesive layer, an anti-adhesive coating is added on the surface of the polyolefin copolymer layer, the acrylic adhesive layer, the polyolefin copolymer layer, and the anti-adhesive coating The total thickness of the three layers of adhesive coating is 0.11-0.13mm, the thickness of the polyolefin copolymer layer is 0.08-0.11mm, and the thickness of the acrylic adhesive layer is 0.02-0.035mm.

Further, the anti-adhesive coating is treated with non-silicone oil and anti-adhesive, and the composition mass ratio of the anti-adhesive coating formula is:

Anti-adhesive 1

Toluene 94

IPA (isopropyl alcohol) 5;

The coating amount (moisture weight) of the anti-adhesive coating is 10-15g/m ² ;

Its main anti-sticking agent composition: (C ₁₂ H ₄₁ O ₂ N)×C ₇ H ₈

        Polyvinyl Octadecyl Urethane.

Further, the polyolefin copolymer layer is formed by copolymerization of ethylene and propylene, using polyethylene, low-density polyethylene, high-density polyethylene, cotton low-density polyethylene, ultra-high molecular weight polyethylene, or polypropylene. (polypropylene + polyethylene copolymer film), the physical characteristics of the substrate:

Heat shrinkage resistance (90μm thickness)

temperature direction

70℃ MD -0.2

CD 0.1

80℃ MD -0.6

CD 0.2

90℃ MD -10

CD 0.3

100℃ MD -1.3

CD 0.6

110℃ MD -1.2

CD 0.9;

Tensile strength (PSI)

MD 4000↑

CD 2900↑

Elongation(%)

MD 150↓

CD 150↓

Ultraviolet (UV) resistance thickness test after 1000 hours

The tensile strength shall not be less than 75% of the original

The elongation must not be less than 90% of the original.

Further, the acrylic adhesive layer is a kind of protective and shielding rubber with bifunctional groups, high polymerization degree molecular weight, low polarity, releasable, non-polluting, and temperature resistance above 150°C. The acrylic adhesive layer The formula is:

Acrylic self-adhesive (oily two-component type rear bridge) 100

Resin (tackifier) 1.5～4.5

Bridging agent 0.5～3

The composition of the main acrylic self-adhesive structure of the acrylic adhesive layer is:

Main monomer 60～95

Modified monomer 60～95

Bridging functional group monomer 0.5-20.

Further, the basic masterbatch of the acrylic adhesive layer is polymerized from acrylic monomers such as butyl acrylate (BA), acrylic isooctanoic acid (ZEHA), and water-based tackifier acrylic acid (AA); the basic masterbatch can be obtained by Add tackifiers such as: rosin, hydrogenated rosin, petroleum resin or phenolic resin to adjust the viscosity requirements; the colloid is prepared as a two-component tackifier, and the bridging agent can be isohydrogen acid bridging agent , in addition to improving its chemical resistance, and can increase the adhesion to the material.

Further, the bridging agent and bridging mode of the acrylic adhesive layer

金属过氧化物、金属盐。

Metal peroxides, metal salts.

The present invention solves the above-mentioned existing technical problems. It has the characteristics of super softness, heat resistance and no pollution. Propylene, polyethylene) copolymer material, the original film is made by a special calendering method, which has super soft and heat-resistant characteristics; the special acrylic glue is used, which has the characteristics of heat resistance and no glue residue; breaks the traditional masking material products, and is environmentally friendly Function; colloid can improve its chemical resistance, and can increase the adhesion to the material, especially suitable for architectural or indoor painting, or the use of wire spraying paint in the automotive industry, which is environmentally friendly, non-polluting, and recyclable.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The relevant structure of the present invention mainly includes the following components: an acrylic adhesive layer 1, a polyolefin copolymer layer 2, and an anti-adhesive coating 3.

The basic composition of this product is the copolymerization of ethylene and propylene, referred to as polyolefin (POLYOLEFIN), its definition is as follows:

Hydrocarbons mean hydrocarbons, olefins mean hydrocarbons with double bonds, including LinearOlefins and Cycloolefins, etc., for example: Ethylene, Propylene, 1-Butene, 1-Hexene, Cyclopolyethylene ntene, etc. all belong to it;

Examples of common polyolefins are as follows: polyethylene, low-density polyethylene, high-density polyethylene, cotton low-density polyethylene, ultra-high molecular weight polyethylene, cotton low-density polyethylene, low-density polyethylene, polypropylene, olefin copolymer Physical elasticity, etc.

The physical requirements of the base material (polypropylene+polyethylene copolymer film) of polyolefin copolymer layer 2 are as follows:

Heat shrinkage resistance (90μm thickness)

temperature direction

70℃ MD -0.2

CD 0.1

80℃ MD -0.6

CD 0.2

90℃ MD -1.0

CD 0.3

100℃ MD -1.3

CD 0.6

110℃ MD -1.2

CD 0.9

Tensile strength (PSI)

MD 4000↑↓

CD 2900↑

Elongation(%)

MD 150↓

CD 150↓

Ultraviolet UV resistance thickness test After 1000 hours

The tensile strength shall not be less than 75% of the original

The elongation must not be less than 90% of the original

Anti-adhesive coating 3 formula is designed for this product, non-silicone oil-based, anti-adhesive treatment, because the anti-adhesive layer must have writability (polyethylene), in order to prevent no drooping and no shrinkage during spraying and baking operations , the formula example of anti-adhesive coating 3 is:

Antisticking agent 1

Toluene 94 General solution solid content control

IPA (isopropyl alcohol 5

Coating thickness of anti-adhesive coating 3: Coating amount (moisture content 10～15g/m ² ;

Anti-adhesive coating 3 and its main anti-adhesive agent composition: (C ₁₂ H ₄₁ O ₂ N×C ₇ H ₈

      Polyvinyl Octadecyl Urethane.

Acrylic adhesive layer 1 adopts special acrylic self-adhesive, this acrylic adhesive is a kind of bifunctional group, high polymerization degree molecular weight, low polarity, re-peelable, non-polluting, and temperature resistance can exceed 150 ℃ for protection Masking glue.

Acrylic adhesive layer 1 formulation example: oily two-liquid bridging type 100

Resin (tackifier 1.5～4.5

Bridging agent 0.5～3;

The main acrylic self-adhesive structure of the acrylic adhesive layer 1 is composed of:

Main monomer 60～95%

Modified monomer 10～45%

Bridging functional group monomer 0.5～20%

Bridging agent and bridging method of acrylic adhesive layer 1:

The above examples are only used to illustrate the present invention for convenience, and are not intended to limit the present invention in any form. Anyone with ordinary knowledge in the technical field, if within the scope of the technical characteristics of the present invention, can use this The equivalent embodiments of partial changes or modifications made in the technical content disclosed in the invention, and without departing from the technical features of the present invention, still belong to the scope of the technical features of the present invention.

Claims (7)

1. A polyolefin material spray paint masking tape is characterized in that: an additional polyolefin copolymer layer (2) is added on the surface of the acrylic adhesive layer (1), and an additional anti-corrosion layer is added on the surface of the polyolefin copolymer layer (2). Sticky coating (3). 2. The polyolefin material spray paint masking tape according to claim 1, characterized in that: the total thickness of the three layers of the acrylic adhesive layer (1), polyolefin copolymer layer (2), and anti-adhesive coating (3) 0.11-0.13mm, the thickness of the polyolefin copolymer layer (2) is 0.08-0.11mm, and the thickness of the acrylic adhesive layer (1) is 0.02-0.035mm. 3. The polyolefin material spray baking varnish masking tape according to claim 1, characterized in that: the composition mass ratio of the anti-adhesive coating (3) formula is: Anti-adhesive 1 Toluene 94 Isopropanol 5; The coating amount of the anti-adhesive coating (3) is 10-15g/m ² ; The main anti-adhesive agent of the anti-adhesive coating (3) is polyethylene stearyl carbamate. 4. The polyolefin material spray-baking varnish masking tape according to claim 1 is characterized in that: the polyolefin copolymer layer (2) is formed by copolymerization of ethylene and propylene, and the base material adopts polyethylene, low-density polyethylene, High-density polyethylene, cotton low-density polyethylene, ultra-high molecular weight polyethylene, or polypropylene, the physical characteristics of the substrate: Heat shrinkage resistance 90μm thickness temperature direction 70℃ MD -0.2 CD 0.1 80℃ MD -0.6 CD 0.2 90℃ MD -1.0 CD 0.3 100℃ MD -1.3 CD 0.6 110℃ MD -1.2 CD 0.9; Tensile strength MD 4000↑ CD 2900↑ Elongation% MD 150↓ CD 150↓. 5. polyolefin material spray paint masking tape according to claim 1, is characterized in that: The composition mass ratio of the acrylic adhesive layer (1) is: Oily two-component rear bridge 100 Tackifier 1.5～4.5 Bridging agent 0.5～3; The main acrylic self-adhesive structure of the acrylic adhesive layer (1) is composed of: Main monomer 60～95 Modified monomer 60～95 Bridging functional group monomer 0.5-20. 6. The polyolefin material spray baking varnish masking tape according to claim 5, is characterized in that: the base masterbatch of described acrylic adhesive layer (1) is made of butyl acrylate, isooctanoic acid acrylic acid, water-based tackifier acrylic acid, acrylic acid It is formed by polymerization of monomers; tackifiers are added to the basic masterbatch: rosin, hydrogenated rosin, petroleum resin or phenolic resin; Bridging agent. 7. The polyolefin material spray baking varnish masking tape according to claim 5, characterized in that: the bridging agent and bridging mode of the acrylic adhesive layer (1) are:

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