WO2021036151A1

WO2021036151A1 - Adhesive tape that can be written on and marked

Info

Publication number: WO2021036151A1
Application number: PCT/CN2020/000196
Authority: WO
Inventors: 杨小娜
Original assignee: 杨小娜
Priority date: 2019-08-28
Filing date: 2020-08-28
Publication date: 2021-03-04
Also published as: CN211595489U

Abstract

Provided is an adhesive tape that can be written on and marked. The adhesive tape is divided into two composite layers, wherein the inner layer is made of textured paper or a similar material, the side coated with an adhesive faces inwards, the face coated with an anti-adhesion material faces outwards, and the width of the inner layer is smaller; a base material of the outer layer is transparent, a transparent adhesive tape base material with a biaxially oriented polypropylene film as an original film is typically used, the face coated with a pressure-sensitive adhesive layer faces inwards, and the width of the outer layer is greater than that of the inner layer; and an adhesive force of the pressure-sensitive adhesive layer of the outer layer is stronger than that of an adhesive layer of the inner layer. When marking is needed during use, the transparent portion of the outer layer is partially uncovered to be partially separated from the inner layer, then writing, marking, etc. are conducted on an outer side of the inner layer, and finally, the outer layer is enabled to cover and be adhered to the inner layer; and if marking is not needed, the adhesive tape may be used as a normal adhesive tape.

Description

Adhesive tape that can be used for writing and marking

Technical field:

The invention relates to the technical field of adhesive tapes, in particular to a composite adhesive tape capable of writing on and marking.

Background technique:

As a commonly used product, tape has been involved in various fields of the national economy, among which the most commonly used is the transparent tape with BOPP (biaxially oriented polypropylene film) as the original film. This kind of tape is economical, easy to obtain, and has a wide range of uses.

People often encounter marking items, such as using tape packaging to tie certain items, marking cosmetics and other packaging, etc., and often use tape. However, it is very inconvenient because you cannot write directly on most tapes. Sometimes a self-adhesive paper sticker is used instead, but the logo written on it is easy to wear and fade.

Summary of the invention:

(1) Technical problems solved

Aiming at the shortcomings of the prior art, the present invention provides a composite tape that can be written on as a mark, and the mark is not easy to be worn.

(2) Technical solution

In order to achieve the above technical effects, the present invention adopts the following technical solutions:

The adhesive tape of the present invention is a composite adhesive tape, which is divided into two layers, namely the outer layer and the inner layer. The inner substrate is made of textured paper or similar materials, the inner side coated with adhesive faces inward, and the side coated with anti-adhesive material faces outward, with a narrow width. The outer substrate is transparent, and a transparent substrate with a biaxially oriented polypropylene film as the original film is typically used. The inward side is coated with a pressure-sensitive adhesive layer whose width is wider than that of the inner layer.

The outer pressure-sensitive adhesive layer has stronger adhesion than the inner adhesive layer. Typical applications are acrylic pressure-sensitive adhesive for the outer layer and masking tape with its own adhesive layer for the inner layer. In this way, the composite tape is directly peeled from the tape roll. When down, the composite tape can maintain the overall bonding state.

When you need to make a mark during use, uncover the transparent part of the outer layer and partially separate it from the inner layer. Then write and mark on the outside of the inner layer. Finally, restore the outer layer and paste it on the inner layer. If there is no need for marking, the composite tape can be used as an ordinary tape.

(3) Beneficial effects:

Compared with the prior art, the composite adhesive tape of the present invention has the following beneficial effects:

A. Because the inner base material is made of textured paper or similar materials, and its anti-adhesive side is suitable for writing with most writing tools such as ballpoint pens and fountain pens, and then covered with the outer transparent material for protection, making The logo will not fade and wear for a long time.

B. Since the anti-adhesive surface of the inner base material masking paper is in contact with the outer transparent tape, it can be peeled off multiple times, and the outer transparent tape is wider than the inner base material masking paper, so it will not affect the composite tape. The overall glue function.

C. Due to the use of two layers of composite materials, the width of the inner layer is narrow, so whether it is peeled off the tape roll for use or needs to be uncovered again after use, it is easy to find the port of the tape.

Description of the drawings:

In order to explain the embodiments of the present invention more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only an embodiment of the present invention, which is common in the art. As far as technical personnel are concerned, they can also obtain other drawings based on these drawings without creative work.

Figure 1 is a transverse (width) cross-sectional view of the tape of the present invention

Marked 1 in Figure 1 is: inner glue layer

Marked 2 in Figure 1 is: the inner base material

Marked 3 in Figure 1 is: outer pressure sensitive adhesive layer

Marked 4 in Figure 1 is: outer base material

detailed description:

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The embodiment of the present application solves the problem that the tape is difficult to make a mark by providing a tape that can be written on it as a mark.

The technical solution in the embodiment of the present application is to solve the above technical problem, and the overall structure is as follows:

The invention uses a composite material, which is divided into an inner layer and an outer layer. The inner layer is made of textured paper or similar materials, and the outer layer is made of commonly used BOPP (biaxially oriented polypropylene film) original film, and the inner side of the outer layer Coated with a pressure-sensitive adhesive layer, the outer layer is wider than the inner layer.

In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementations.

An adhesive tape that can be written on as a logo, as shown in Figure 1, which is a cross-sectional view. The adhesive tape includes an inner adhesive layer 1, an inner substrate 2, an outer sensitive adhesive layer 3, and an outer layer. It is composed of base material 4, and the outer layer is wider in width than the inner layer. When in use, paste the inner adhesive layer 1 on the surface of the object to be pasted, then uncover the outer part of the tape, write or mark the inner side of the tape with a pen, and then cover the outer layer back.

In one embodiment, the inner adhesive layer 1 and the inner substrate 2 use masking tape.

In one embodiment, the material of the outer pressure-sensitive adhesive layer 3 is rubber-type solvent-free pressure-sensitive adhesive or modified acrylic resin. Specifically, the rubber-type solvent-free pressure-sensitive adhesive layer includes the following raw materials by weight: 85-100 parts of butyl rubber, 60-95 parts of terpene resin, 35-60 parts of PIB, 0.3-0.5 parts of stabilizer, 0.3-0.6 parts of antioxidant. The modified acrylic resin pressure-sensitive adhesive layer includes the following raw materials in parts by weight: 65-80 parts of isooctyl acrylate, 5-25 parts of methyl acrylate, 10-25 parts of base acrylic acid, 0.1-1.2 parts of GMA, and TAIC 0.1 -1 part, 0.1-2 parts of polyvinyl alcohol, 0.1-0.55 parts of BPO, 0.1-2 parts of ammonia water. The pressure-sensitive adhesive layer with the above specifications has strong adhesion and will not leave any residual glue on the surface of the adherend.

In one embodiment, the pressure-sensitive adhesive layer 3 has a thickness of 100-160 μm, preferably 120 μm. If the thickness of the pressure-sensitive adhesive layer is less than 80 μm, the fastness to the adherend is insufficient, and the repeated use effect is not ideal. If it is higher than 160μm, the film formation and curing will be slower, and the adhesive layer will easily produce greater creep when it is stressed, which will cause adhesion failure, and the cost will be higher.

In one embodiment, the substrate 4 is a biaxially oriented polypropylene film, and the thickness of the substrate 4 is 10-55 μm.

The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

An adhesive tape that can be written on as a logo. It is characterized in that the adhesive tape is of composite type and is divided into two layers. The inner substrate is made of textured paper or a material with similar functions. The inner layer is coated with adhesive on the inside. The side with the anti-sticking material is facing outwards, the width is narrow, the outer substrate is transparent, and the inner side of the outer layer is coated with pressure-sensitive adhesive, and the width is wider than the inner layer.
The adhesive tape that can be written as a mark according to claim 1, wherein the material of the pressure-sensitive adhesive layer of the outer layer of the composite adhesive tape is a rubber-type solvent-free pressure-sensitive adhesive.
The adhesive tape capable of writing and marking as claimed in claim 1, wherein the material of the pressure-sensitive adhesive layer of the outer layer of the composite adhesive tape is modified acrylic resin.
The tape that can be written as a mark according to claim 1, wherein the outer substrate of the composite tape is a biaxially oriented polypropylene film.