TWI626290B - Polyethylene tape - Google Patents

Abstract

A polyethylene tape includes a tape body layer and an adhesive layer. The tape body layer is made of polyethylene (PE); the adhesive layer is made of acrylic glue, and includes a first adhesive and a second adhesive, the first adhesive and the The second viscose system is disposed on the same surface of the belt layer at intervals. The belt layer, the first adhesive, and the second adhesive meet the following conditions: 40 μm ≦ T0 ≦ 130 μm; 10 μm ≦ T1 ≦ 50 μm 10 μm ≦ T2 ≦ 50 μm; wherein T0 is the thickness of the belt layer; T1 is the thickness of the first adhesive; T2 is the thickness of the second adhesive.

Description

Polyethylene tape

The present invention relates to an adhesive tape for sticking to an object to protect or fix the object; in particular, it refers to 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. The belt body of general tapes usually uses polyvinyl chloride (PVC) as a raw material for production. The main reason is that polyvinyl chloride has the advantages of low cost and good processability.

In addition, when the polyvinyl chloride tape is exposed to high temperatures or large temperature differences, the plasticizer of the adhesive material will leak out of the adhesive material, which will cause the lack of tackiness on the cross-section, overflow, running, and poor aging resistance of the tape. In other words, the The vinyl chloride tape not only easily causes the user to have a bad look and feel, but also causes the user the trouble of subsequent cleaning and the disadvantage of poor durability.

In addition, in recent years, in response to environmental protection trends, advanced countries around the world have actively developed environmentally friendly materials, or eco-materials. Among them, the European Union has initiated initiatives since 2004. Do not use products containing lead and halogen in electrical appliances or industrial supplies. Therefore, there is an urgent need for other more environmentally friendly materials to replace chlorine-containing PVC tapes.

Therefore, some industry players began to research and develop single-layer polyethylene (PE) as the raw material for the tape body, and then attached the plastic material to the polyethylene tape body to replace the polyvinyl chloride tape containing chlorine. However, although the above-mentioned polyethylene tape (hereinafter referred to as polyethylene tape) can solve the above problems, in practice, ordinary polyethylene tapes still have a problem of insufficient adhesive strength (about 1g / 25cm). It cannot be effectively used in various fields, and thus cannot effectively improve the versatility of polyethylene tapes.

In view of this, an object of the present invention is to provide a polyethylene tape which can provide better adhesive strength.

In order to achieve the above object, a polyethylene tape provided by the present invention includes a tape body layer and an adhesive layer. The tape body layer is made of polyethylene (PE); the adhesive layer is made of acrylic glue, and includes a first adhesive and a second adhesive, the first adhesive and the The second viscose is disposed on the same surface of the tape body layer at intervals. The tape body layer, the first viscose, and the second viscose meet the following conditions: (1) 40 μm ≦ T0 ≦ 130 μm; (2) ) 10 μm ≦ T1 ≦ 50 μm; (3) 10 μm ≦ T2 ≦ 50 μm; where T0 is the thickness of the belt layer; T1 is the thickness of the first adhesive; T2 is the thickness of the second adhesive.

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

In order to explain the present invention more clearly, a preferred embodiment is described in detail below with reference to the drawings. Please refer to FIG. 1 and FIG. 2, a polyethylene tape 100 according to a preferred embodiment of the present invention includes a tape body layer 10 and an adhesive layer 20, wherein:

The belt body layer 10 is made of polyethylene (PE) for blow molding into a film shape, and has a first surface 12 and a second surface 14 facing away from each other. It is worth mentioning that the purpose of using polyethylene as a raw material in the present invention is that polyethylene is odorless, non-toxic, has excellent low temperature resistance, and has good chemical stability and can withstand most alkaline erosion. In addition, after being exposed to sunlight for a long period of time, 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. Will reduce the environmental burden and achieve the purpose of environmental protection.

The adhesive layer 20 is made of environmentally-friendly acrylic adhesive, and includes a first adhesive 22 and a second adhesive 24. The first adhesive 22 and the second adhesive 24 are spaced apart from each other. On the same surface of the belt layer 10, more specifically, the first adhesive 22 and the second adhesive 24 are arranged side by side on the first surface of the belt layer 10 along the length direction of the belt layer 10. 12 on. In addition, in this embodiment, the thickness of the first adhesive 22 and the second adhesive 24 are the same, and both are smaller than the thickness of the belt layer 10. In addition, the reason why the first adhesive 22 and the second adhesive 24 of the adhesive layer 20 of this embodiment are made of environmentally-friendly acrylic glue is that the environmentally-friendly acrylic glue has no solvent residue, which can avoid manufacturing It can cause damage to the environment during use, which can effectively achieve the effect of environmental protection.

In addition, in addition to the selection of the above structure and material, another important point of the present invention is that the thicknesses of the first adhesive 22 and the second adhesive 24 of the tape layer 10 and the adhesive layer 20 satisfy the following conditions: (1) 40 μm ≦ T0 ≦ 130μm; (2) 10μm ≦ T1 ≦ 50μm; (3) 10μm ≦ T2 ≦ 50μm; (4) 1/13 ≦ T1 / T0 ≦ 5/8; (5) 1/13 ≦ T2 / T0 ≦ 5 /8. (6) 50μm ≦ Tt ≦ 180μm;

T0 is the thickness of the tape layer 10; T1 is the thickness of the first adhesive 22; T2 is the thickness of the second adhesive; Tt is the thickness of the tape layer 10 and the adhesive layer 20.

In addition, based on the structural foundations of the above conditional expressions, in actual implementation, the thicknesses of the first adhesive 22 and the second adhesive 24 of the tape layer 10 and the adhesive layer 20 are summarized as follows:

In this way, by matching the thickness of the first adhesive 22 and the second adhesive 24 of the tape layer 10 and the adhesive layer 20 described above, the polyethylene material of the tape layer 10 and the adhesive layer 20 can be made. The environmentally friendly acrylic adhesive materials will exhibit high affinity, so that the adhesive layer 20 made of environmentally friendly acrylic adhesive can be stably attached to the belt layer 10, making it difficult for the adhesive layer 20 The tape body layer 10 is peeled off, which can effectively and stably increase the adhesion amount of the adhesive layer 20, thereby increasing the adhesive strength of the polyethylene tape 10, and the total thickness of the tape body layer 10 and the adhesive layer 20 is further increased. The adhesive strength is the best when it is 130μm to 140μ. At this time, the grip area of the adhesive strength can reach 1g / 2.5cm, which is much higher than the conventional polyethylene tape.

It is worth mentioning that the purpose of the present invention to design the thickness of the band layer 10 between 40 μm and 130 μm is that when the band layer 10 is less than 40 μm, there is a concern that it is too thin and easily broken, and when the band layer 10 When the thickness is larger than 130 μm, it will be too thick and difficult to deflect, which may cause inconvenience in use. In addition, in the present invention, the purpose of limiting the thickness of the adhesive layer 20 to less than 50 μm is to avoid that the acrylic adhesive is too thick and part of the acrylic adhesive cannot be attached to the tape layer 10, which may cause the adhesive layer 20 to Some acrylic adhesives are easy to peel off and cause overflow, degumming, or residue.

Please refer to FIG. 3, an application example of adhering the polyethylene tape 100 of the present invention to the surface of an object 1 having two surfaces 1a and 1b, and a first adhesive 22 of the polyethylene tape 100 Is adhered to the surface 1a of the object 1, and the second adhesive 24 is adhered to the surface 1b of the object 1, so that the colloidal layer 10 of the polyethylene tape 100 covers the edge portion of the object 1 with shielding, The effect of protecting the edge portion of the object 1.

It is worth mentioning that if the two surfaces 1a, 1b of the object 1 have different surface roughness or different materials, so that the adhesion conditions of the two surfaces are different, it is necessary to have two sides with different adhesion forces. When using vinyl tape, of course, the thickness of the first adhesive and the thickness of the second adhesive can be designed differently according to circumstances. For example, the thickness of the first adhesive is designed to be greater than the thickness of the second adhesive. The adhesive force of the first adhesive side is greater than the adhesive force of the second adhesive side; or the thickness of the first adhesive is designed to be smaller than the thickness of the second adhesive so that the adhesive tape has the The adhesive force on the side of the second adhesive is greater than the adhesive force on the side of the first adhesive, so as to meet different usage requirements, and is not limited to the exemplary description of the above embodiment.

In addition, as shown in FIG. 4, patterns, patterns, or text patterns can be formed on the second surface 14 of the belt layer 10 through processing methods such as printing, embossing, or coating, so that it has Different functions and effects such as identification, warning or anti-counterfeiting, etc. In this embodiment, the English word “HAILI” is printed on the second surface 14 of the belt layer 10 to make the polyethylene tape 100 improve its performance. Recognition, which in turn plays an advertising role on the tape. In addition, of course, the pattern design of the surface of the tape can also be changed according to the requirements of use, without being limited to the above embodiment. Another mention is that the portion of the first surface 12 of the belt body layer 10 that is not provided with the adhesive layer 20 may of course be designed with a pattern, without being limited thereto.

In the foregoing embodiment, one edge of the first adhesive 22 and one edge of the second adhesive 24 are substantially flush with the edges of the left and right sides of the belt layer 10, respectively, except for the design method described above. In addition, please refer to FIG. 5, which is a polyethylene tape 200 according to a second preferred embodiment of the present invention. The structure of the polyethylene tape 200 is substantially the same as that of the previous embodiment, except that the side edge 320 of the first adhesive 32 is different. The side edge 340 of the second adhesive 34 is spaced a distance D2 from the side edge 44 of the tape body layer 40. In this embodiment, the two distances D1, D2 is equal and both are greater than 0. The advantage of designing the above-mentioned separation distances D1 and D2 is that if the tape is to be torn, in other words, when the tape is to be separated from the adherend, the user can more easily find and obtain the force application point of the torn tape. Convenient for users to remove the tape. In addition, the aforementioned separation distances D1 and D2 can be flexibly adjusted according to the requirements of use. For example, the distances D1 and D2 can be designed to be larger and smaller; or one of the distances D1 and D2 can be designed to approach 0. That is, one of the adhesives (the first adhesive or the second adhesive) is substantially flush with the edge of the belt layer, and is not limited to the above embodiment.

Please refer to FIG. 6, which is a third preferred embodiment of the polyethylene tape 300 of the present invention. The difference from the foregoing embodiment is that the first adhesive system includes a plurality of first adhesive sections 50. The first adhesive sections 50 are spaced apart along the length direction of the belt body layer 70. The second adhesive section includes a plurality of second adhesive sections 60, and the second adhesive sections 60 are also along the belt. The body layer 70 is disposed at intervals in the longitudinal direction. With the above design, the amount of the first adhesive and the second adhesive can be reduced while the polyethylene tape 300 has a certain adhesive strength, and the cost reduction effect can be achieved.

The above descriptions are only the preferred and feasible embodiments of the present invention. For example, any equivalent changes made by applying the description of the creation and the scope of patent application should be included in the scope of the patent of the creation.

[this invention]

100‧‧‧polyethylene tape

10‧‧‧ with body layer

12‧‧‧first surface

14‧‧‧ second surface

20‧‧‧ Adhesive layer

22‧‧‧The first adhesive

24‧‧‧Second viscose

1‧‧‧ objects

1a, 1b‧‧‧ surface

200‧‧‧polyethylene tape

32‧‧‧The first adhesive

320‧‧‧ side edge

34‧‧‧Second viscose

340‧‧‧Side edge

40‧‧‧ with body layer

42‧‧‧Side edge

44‧‧‧ side edge

300‧‧‧polyethylene tape

50‧‧‧The first viscose section

60‧‧‧Second viscose section

70‧‧‧ with body layer

FIG. 1 is a structural diagram of a polyethylene tape according to a preferred embodiment of the present invention; FIG. 2 is a cross-sectional view of the polyethylene tape according to the above embodiment of the present invention; Schematic diagram of the surface of the object; Figure 4 is a bottom view of the polyethylene tape of the preferred embodiment of the present invention; Figure 5 is a cross-sectional view of the polyethylene tape of the second preferred embodiment of the present invention; Figure 6 is a third preferred embodiment of the present invention Top view of the polyethylene tape of the example.

no

Claims (13)

A polyethylene tape includes: a tape body layer made of polyethylene (PE); an adhesive layer made of acrylic adhesive, and comprising a first adhesive and a second adhesive Adhesive, the first adhesive and the second adhesive are disposed on the same surface of the belt layer at a distance; wherein when the thickness of the belt layer is between 40 μm and 50 um, the first adhesive meets the following requirements: Conditions: 10 μm ≦ T1 ≦ 20 μm; the second adhesive meets the following conditions: 10 μm ≦ T2 ≦ 20 μm; wherein, when the thickness of the belt layer is 60 μm, the first adhesive meets the following conditions: 10 μm ≦ T1 ≦ 30 μm; the The second adhesive meets the following conditions: 10 μm ≦ T2 ≦ 30 μm; where the thickness of the tape layer is 70 μm, the first adhesive meets the following conditions: 10 μm ≦ T1 ≦ 40 μm; the second adhesive meets the following conditions: 10 μm ≦ T2 ≦ 40μm; where the thickness of the belt layer is between 90μm and 120um, the first adhesive meets the following conditions: 10μm ≦ T1 ≦ 50μm; the second adhesive meets the following conditions: 10μm ≦ T2 ≦ 50μm; where , T1 is the thickness of the first adhesive; T2 is the second adhesive The thickness of the glue. The polyethylene tape according to claim 1, wherein the thickness of the tape body layer is greater than the thickness of the first adhesive and the second adhesive, respectively. The polyethylene tape according to claim 2, wherein the tape body layer, the first adhesive, and the second adhesive more satisfy the following conditions: 1/13 ≦ T1 / T0 ≦ 5/8; 1/13 ≦ T2 / T0 ≦ 5/8; where T0 is the thickness of the belt layer. The polyethylene tape according to claim 1, wherein the thickness of the first adhesive and the second adhesive are the same. The polyethylene tape according to claim 1, wherein a thickness of the first adhesive is greater than a thickness of the second adhesive. The polyethylene tape according to claim 1, wherein the first adhesive and the second adhesive are arranged side by side along a length direction of the tape body layer. The polyethylene tape according to claim 6, wherein the tape body layer has two opposite side edges, and one side edge of the first adhesive is flush with one of the side edges of the tape body layer. The polyethylene tape according to claim 7, wherein one side edge of the second adhesive is flush with the other side edge of the tape body layer. The polyethylene tape according to claim 6, wherein the tape body layer has two opposite side edges, and one side edge of the first adhesive is spaced apart from one of the side edges of the tape body layer. The polyethylene tape according to claim 9, wherein one side edge of the second adhesive is spaced apart from the other side edge of the tape body layer by a distance. The polyethylene tape according to claim 6, wherein the first adhesive comprises a plurality of first adhesive segments, and the first adhesive segments are disposed at intervals along a length direction of the tape body layer. The polyethylene tape according to claim 11, wherein the second adhesive comprises a plurality of second adhesive segments, and the second adhesive segments are disposed at intervals along the length direction of the tape body layer. The polyethylene tape according to claim 1, wherein the tape body layer has a first surface and a second surface opposite to each other, and the first surface is provided with the first adhesive and the second adhesive. A pattern is provided on the second surface.