TWI624372B - Polyethylene tape (2) - Google Patents

Abstract

A polyethylene tape comprises a belt layer and an adhesive layer attached to the belt layer, wherein the belt layer is made of polyethylene (PE), and the adhesive layer is pressed Made of a gel, and the strip layer and the adhesive layer meet the following conditions: 40 μm ≦T1 ≦ 130 μm; 10 μm ≦ T2 ≦ 50 μm; and 50 μm ≦ Tt ≦ 180 μm; wherein T1 is the thickness of the belt layer; T2 is the The thickness of the adhesive layer; Tt is the sum of the thickness of the tape layer and the adhesive layer.

Description

Polyethylene tape (2)

The present invention relates to a tape for adhering to an article to protect or secure the article; in particular, a polyethylene tape.

With the advancement of industrial technology, the use of tape has become increasingly popular in many fields such as daily life and engineering. In general, the tape of the tape is usually made of polyvinyl chloride (PVC) as a raw material for production, and the main reason is that the polyvinyl chloride has the advantages of low cost and good processability.

In addition, when the polyvinyl chloride tape is exposed to high temperature or temperature difference, the plasticizer of the rubber material will ooze out from the rubber material, which may lead to defects such as cross-section sticking, overflowing, running, and poor aging resistance of the tape, in other words, gathering. The vinyl chloride tape is not only easy to cause the user to use the look and feel, but also causes the user's subsequent cleaning troubles and the disadvantage of poor durability.

In addition, in the past decade, in response to environmental trends, the world's advanced countries have actively developed environmentally friendly materials, or environmental materials (eco-materials), of which the EU has further advocated since 2004. Products containing lead and halogen should no longer be used in electrical or industrial supplies. Therefore, there is a need for other environmentally friendly materials to replace polyvinyl chloride tape containing chlorine.

Therefore, some manufacturers have begun to develop a single layer of polyethylene (Polyethylene) (PE) as the raw material for the production of the strip, and then attach the adhesive to the polyethylene strip to replace the chlorine-containing polyvinyl chloride tape. However, The tape made of the above polyethylene tape (hereinafter referred to as polyethylene tape) can solve the above problems, but in practice, the general polyethylene tape still has the problem of insufficient adhesive strength (about 1 g / 25 cm), and cannot be effective. It is used in various fields, and it cannot effectively improve the versatility of polyethylene tape.

In view of this, the object of the present invention is to provide a polyethylene tape which provides better adhesion strength.

In order to achieve the above object, the polyethylene tape provided by the present invention comprises a belt layer and an adhesive layer attached to the belt layer, wherein the belt layer is made of polyethylene (PE). The adhesive layer is made of acrylic glue, and the belt layer and the adhesive layer meet the following conditions: (1) 40 μm ≦ T1 ≦ 130 μm; (2) 10 μm ≦ T2 ≦ 50 μm; (3) 50 μm ≦ Tt ≦ 180 μm; wherein T1 is the thickness of the strip layer; T2 is the thickness of the adhesive layer; Tt is the sum of the thickness of the strip layer and the adhesive layer.

According to the above concept, the thickness of the belt layer is greater than the thickness of the adhesive layer.

According to the above concept, the strip layer and the adhesive layer more satisfy the following conditions: 1/13 ≦ T2 / T1 ≦ 5 / 8.

In this way, through the thickness planning and design described above, the affinity between the strip layer and the adhesive layer can be effectively improved, so that the adhesive layer can be more stably attached to the strip layer, which is effective. The adhesive strength of the polyethylene tape is increased, and the polyethylene tape can be widely used in various fields, thereby improving the versatility of the polyethylene tape.

10‧‧‧Polyethylene tape

11‧‧‧With body layer

12‧‧‧Adhesive layer

Figure 1 is a structural view of a preferred embodiment of the present invention; Figure 2 is a cross-sectional view of a preferred embodiment of the present invention.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. As shown in FIG. 1 and FIG. 2, the polyethylene tape 10 of the preferred embodiment of the present invention comprises a belt layer 11 And an adhesive layer 12 attached to the belt layer 11, wherein:

The belt layer 11 is formed by blow molding of polyethylene (Polyethylene, PE for short). It is worth mentioning that the purpose of the invention is to use polyethylene as a raw material, that is, the polyethylene is odorless, non-toxic, and has excellent low temperature resistance, and the polyethylene has good chemical stability and is resistant to most alkali corrosion. In addition, after long-term sunshine, polyethylene will automatically embrittle and decompose, and when polyethylene is completely burned in the air, it will only produce carbon dioxide (CO ₂ ) and water (H ₂ O) without generating other atmospheric pollutants. It will reduce the environmental burden and achieve the purpose of environmental protection.

The adhesive layer 12 is made of environmentally friendly acrylic glue and adhered to the belt layer 11, and the thickness of the adhesive layer 12 is smaller than the thickness of the belt layer 11. In addition, the reason why the adhesive layer 12 of the embodiment is made of environmentally-friendly acrylic rubber is that the environmentally-friendly acrylic adhesive has no solvent residue property, thereby avoiding damage to the environment during manufacture and use, and thus effectively Achieve the effect of environmental protection.

In addition, in addition to the above-described selection of structure and material, another focus of the present invention is that the thickness of the strip layer 11 and the adhesive layer 12 satisfy the following conditions: (1) 40 μm ≦ T1 ≦ 130 μm; (2) 10 μm ≦ T2 ≦ 50 μm; (3) 50 μm ≦ Tt ≦ 180 μm; (4) 1/13 ≦ T2 / T1 ≦ 5 / 8.

Wherein, T1 is the thickness of the strip layer 11; T2 is the thickness of the adhesive layer 12; and Tt is the sum of the thickness of the strip layer 11 and the adhesive layer 12.

In addition, based on the structural basis of the above conditional formulas, when the strip layer 11 and the adhesive layer 12 are actually implemented, the thickness of the strip layer 11 and the adhesive layer 12 are combined as follows:

Therefore, the thickness of the strip layer 11 and the adhesive layer 12 can be high between the polyethylene material of the strip layer 11 and the environmentally friendly acrylic material of the adhesive layer 12. Affinity, the adhesive layer 12 made of environmentally friendly acrylic glue can be stably attached to the belt layer 11 , the adhesive layer 12 is not easily peeled off from the strip layer 11 , and the adhesion amount of the adhesive layer 12 can be effectively and stably increased, thereby increasing the adhesive strength of the polyethylene tape 10 , wherein When the total thickness of the belt layer 11 and the adhesive layer 12 is 130 μm to 140 μ, the adhesion strength is optimal, and the adhesive strength of the adhesive layer can reach 1 g/2.5 cm, which is higher than that of the conventional polyethylene tape.

It is worth mentioning that the thickness of the strip layer 11 of the present invention is designed to be between 40 μm and 130 μm, in that when the strip layer 11 is less than 40 μm, there will be a problem that the strip layer 11 is too thin and easily broken, and when the strip layer is When 11 is larger than 130 μm, it may be too thick to be easily bent, which may cause troubles in use. In addition, the purpose of limiting the thickness of the adhesive layer 12 to less than 50 μm in the present invention is to prevent the acrylic adhesive from being too thick to cause partial adhesion of the acrylic adhesive to the strip layer 11, resulting in the adhesive layer 12 being Part of the acrylic rubber is easily peeled off to cause overflow, degumming or residual glue.

In other words, in the above thickness limitation, the present invention can effectively improve the adhesion of the adhesive layer 11 and increase the adhesive strength of the polyethylene tape 10, and can improve the adhesive tape, degumming or the use of the conventional polyvinyl chloride tape. It is a disadvantage of residual glue.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

Claims (3)

A polyethylene tape comprising a belt layer and an adhesive layer attached to the belt layer, wherein the belt layer is made of polyethylene (PE), and the adhesive layer is pressed Made of gram adhesive, the thickness of the strip layer is T1, and the thickness of the adhesive layer is T2; wherein, when T1 is between 40 μm and 50 μm, T2 meets the following conditions: 10 μm ≦ T2 ≦ 50 μm; wherein, when T1 is At 60 μm, T2 meets the following conditions: 10 μm ≦ T2 ≦ 30 μm; wherein, when T1 is 70 μm, T2 meets the following conditions: 10 μm ≦ T2 ≦ 40 μm; wherein, when T1 is between 80 μm and 130 μm, T2 meets the following conditions: 10 μm ≦T2≦50μm. The polyethylene tape of claim 1, wherein the thickness of the tape layer is greater than the thickness of the adhesive layer. The polyethylene tape according to claim 2, wherein the belt layer and the adhesive layer more satisfy the following conditions: 1/13 ≦ T2 / T1 ≦ 5 / 8.