Preparation method of adhesive tape for positioning

Abstract

The invention relates to the technical field of adhesive tapes, in particular to a preparation method of an adhesive tape for positioning, which takes polyester-mixed cotton cloth as a supporting material, and comprises the following steps: (1) firstly preparing green butyl rubber, mixing the green butyl rubber with a solvent to prepare butyl rubber cement 1, coating one side of the polyester-mixed cotton cloth through a gumming machine, and permeating the rubber cement into the polyester-mixed cotton cloth and forming a rubber film with a certain thickness on the surface of the polyester-mixed cotton cloth; (2) after the solvent is volatilized, vulcanizing; (3) after vulcanization is completed, preparing red rubber cement 2, and continuously coating the red rubber cement 2 on the surface coated with the butyl rubber cement 1 through the rubber coating machine; (4) coating the other side of the polyester-mixed cotton cloth with a natural adhesive; and (5) after the adhesive cement is uniformly coated for three times, cutting the adhesive cement into specified positioning lines or positioning marks according to actual requirements. After the adhesive tape product is manufactured in a three-time gluing mode, talcum powder left on the adhesive tape inside the adhesive tape product can not be resided, and the adhesive tape product can be firmly combined with the positioning position of the adhesive tape product.

Description

Technical Field

[0001] The present invention relates to the technical field of adhesive tapes, and in particular to a method for preparing an adhesive tape for positioning. Background Art

[0002] As the protective "guard" of various types of equipment, tape products must be refined in terms of appearance, performance, and overall effect. Especially for some equipment, due to its large mass, precise positioning is required when hoisting and wearing the tape product to ensure that the product is put in place at one time. This requires that the tape product must have accurate positioning lines or positioning marks relative to the equipment.

[0003] At present, the positioning lines used on tape products are manually traced with a red pencil on green tape. The tracing pen uses clay as an adhesive to bond tiny red pigment particles together, and then the tracing pen core is rubbed against the cloth, causing the red pigment particles to be peeled off the core and embedded in the gaps in the cloth grain and adhered to the cloth. The color is lighter, and the internal filling of the lines is uneven, resulting in poor appearance. In addition, the support plate outside the equipment has long pressed the internal positioning lines of the tape product tightly against the equipment, and the load is too large, resulting in a large area of ​​pencil marks being stained on the equipment, which has a certain impact on the normal use of the equipment. The process of handling the marks will consume manpower and material resources, causing inconvenience to user service management, and also affecting the user's experience of using the product. Summary of the Invention

[0004] To address the numerous inconveniences associated with the use of current adhesive tape products, the present invention provides a method for preparing positioning tape. Adhesive tape products are rubber products with a small amount of talcum powder on their surface. Conventional tape, insulating tape, colored tape, aluminum foil tape, environmentally friendly tape, etc., cannot adhere firmly to these surfaces, making them unsuitable for use as positioning lines. The surrounding base color of the positioning line is green. To minimize the red color of the positioning line, the final positioning line is dark red. By utilizing the color overlay effect, a bright red adhesive is applied over the green tape.

[0005] The present invention is achieved through the following technical solution: a method for preparing a positioning tape, comprising the following steps: Using polyester-cotton cloth as the supporting material, (1) green butyl rubber is first prepared, and the green butyl rubber is mixed with a solvent to prepare butyl paste 1, which is then coated on one side of the polyester-cotton cloth by a glue coating machine. The paste penetrates into the interior and surface of the polyester-cotton cloth to form a film of a certain thickness; (2) after the solvent evaporates, vulcanization is carried out; (3) after vulcanization is completed, red paste 2 is prepared, and the red paste 2 is continued to be coated on the side coated with butyl paste 1 by a glue coating machine; (4) natural adhesive is coated on the other side of the polyester-cotton cloth; (5) after the three pastes are coated, the cloth can be cut into the specified positioning lines or positioning marks according to actual needs.

[0006] As a further improvement of the technical solution of the present invention, in step (1), the green butyl rubber material is prepared from the following raw materials in parts by mass: 55 parts of butyl rubber, 6 parts of vulcanized resin, 0.2 parts of cross-linking agent, 6 parts of zinc oxide, 1.5 parts of stearic acid, and 2.5 parts of phthalocyanine green.

[0007] As a further improvement of the technical solution of the present invention, the preparation method of the butyl rubber slurry 1 is: using an open mill or an internal mixer to mix the rubber material evenly according to the ratio and press it into sheets, pressing the rubber material into blocks, and then using a rubber cutter to cut the material, and then loading the film and solvent into a kneader to obtain butyl rubber slurry 1.

[0008] As a further improvement of the technical solution of the present invention, in step (3), the red glue 2 is made of the following raw materials in parts by mass: 80 parts of nylon transparent glue and 20 parts of bright red glue.

[0009] As a further improvement of the technical solution of the present invention, the preparation method of the red glue 2 is: using a stirring rod to stir the nylon transparent glue and the bright red glue into a red glue with a uniform texture.

[0010] As a further improvement of the technical solution of the present invention, in step (3), after applying the red glue 2, it is left for at least 24 hours, and then the natural adhesive is applied to the other side of the polyester-cotton cloth.

[0011] As a further improvement of the technical solution of the present invention, in step (2), the process conditions for vulcanization are: vulcanization temperature 120±5°C, vulcanization pressure 0.30-0.35MPa, and vulcanization time 78-80min.

[0012] As a further improvement to the technical solution of the present invention, after the three applications of the mortar are completed, the mortar is left to stand for at least 24 to 48 hours.

[0013] The method for preparing a positioning tape provided by the present invention has the following advantages compared with the prior art: 1. Polyester-cotton cloth is used as the supporting material for positioning tape, which has a small weight, light texture and low cost.

[0014] 2. After the production is completed by the three-time gluing method, there is no need to worry about the talcum powder remaining on the tape inside the tape product. It can be firmly combined with the positioning part of the tape product. It has been verified that the bonding strength can reach more than 2.18kN / m, and the bonding performance is excellent.

[0015] 3. Red glue is a water-based nylon glue. Compared with thermoplastic acrylic, nitro, alkyd and other paints, it has stronger adhesion to tape products. The positioning tape made of this glue has uniform color, beautiful appearance and easy identification. It can ensure accurate positioning when the equipment is wearing the tape product, and the equipment and tape products can be put into place at one time. The imprint is clear, the wear resistance is good, the characteristics are stable, and it will not migrate and pollute the equipment surface under a certain load, which greatly improves the practicality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic structural diagram of the positioning tape of the present invention is shown. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The present invention provides a specific embodiment of a method for preparing a positioning tape, comprising the following steps: Using polyester-cotton cloth as the supporting material, (1) green butyl rubber is first prepared, and the green butyl rubber is mixed with a solvent to prepare butyl paste 1, which is then coated on one side of the polyester-cotton cloth by a glue coating machine. The paste penetrates into the interior and surface of the polyester-cotton cloth to form a film of a certain thickness; (2) after the solvent evaporates, vulcanization is carried out; (3) after vulcanization is completed, red paste 2 is prepared, and the red paste 2 is continued to be coated on the side coated with butyl paste 1 by a glue coating machine; (4) natural adhesive is coated on the other side of the polyester-cotton cloth; (5) after the three pastes are coated, the cloth can be cut into the specified positioning lines or positioning marks according to actual needs.

[0022] In one example provided by the present invention, in step (1), a green butyl rubber material is prepared from the following raw materials in parts by weight: 55 parts of butyl rubber, 6 parts of vulcanized resin, 0.2 parts of crosslinking agent, 6 parts of zinc oxide, 1.5 parts of stearic acid, and 2.5 parts of phthalocyanine green. The vulcanized resin can be brominated para-octylphenol formaldehyde vulcanized resin HY-2056, and the crosslinking agent can be crosslinking agent HV-268.

[0023] In another example provided by the present invention, the preparation method of the butyl rubber slurry 1 is: use an open mill or an internal mixer to mix the rubber material evenly according to the ratio and press it into sheets, press the rubber material into blocks, and then use a rubber cutter to cut the material, and then load the film and solvent into a kneader to obtain butyl rubber slurry 1.

[0024] In an example provided by the present invention, in step (3), the red glue 2 is made of the following raw materials in parts by weight: 80 parts of nylon transparent glue and 20 parts of bright red glue. The nylon transparent glue can be HF822 transparent glue.

[0025] In another example provided by the present invention, the preparation method of the red glue 2 is: using a stirring rod to stir nylon transparent glue and bright red glue into a red glue with uniform texture.

[0026] In one example provided by the present invention, in step (3), after applying the red adhesive 2, the adhesive is left to stand for at least 24 hours before applying a natural adhesive to the other side of the polyester-cotton cloth. Natural adhesives have a uniform texture, good fluidity, and strong adhesion, and can be used on rubber products or general fabrics. They can adhere tightly to the inner adhesive tape of the adhesive tape product without being affected by a small amount of talcum powder. The natural adhesive used in the present invention is specifically aviation rubber liquid XY401.

[0027] In another example provided by the present invention, in step (2), the process conditions for vulcanization are: vulcanization temperature 120±5°C, vulcanization pressure 0.30-0.35MPa, and vulcanization time 78-80min.

[0028] In an example provided by the present invention, after the three applications of the adhesive are completed, the adhesive is left to stand for at least 24 to 48 hours.

[0029] The specific embodiments of the present invention are described in detail below. Example

[0030] Select light-weight polyester-cotton cloth (≤110g / ㎡) as the supporting material. (1) First, prepare green butyl rubber according to the ratio. Then, mix the green butyl rubber with No. 120 solvent oil at a ratio of 1:3 to make butyl rubber paste 1. Then, coat one side of the polyester-cotton cloth with a glue coating machine. The glue paste penetrates into the interior and surface of the polyester-cotton cloth to form a certain thickness of glue film. The glue amount is (100±5) g / m 2; (2) After the No. 120 solvent oil has evaporated for at least 96 hours, it is placed in an electric heating vulcanization tank for vulcanization using the winding method. The vulcanization temperature is (120±5)℃, the vulcanization pressure is 0.33MPa, and the vulcanization time is 80min; (3) After the vulcanization is completed, red glue 2 is prepared according to the ratio. The glue must have a uniform texture. The red glue 2 is continued to be applied on the side where the butyl glue 1 has been applied by a glue coating machine, and then it is left for at least 24 hours; (4) Aviation rubber liquid XY401 is applied on the other side of the polyester-cotton cloth, with a glue amount of 70g / ㎡; (5) After the three glues are applied, it is left for at least 48 hours. It can be cut into the specified positioning lines or positioning marks according to actual needs.

[0031] The green butyl rubber compound is made from the following raw materials in parts by weight: 55 parts butyl rubber, 6 parts vulcanized resin, 0.2 parts crosslinking agent, 6 parts zinc oxide, 1.5 parts stearic acid, and 2.5 parts phthalocyanine green. The vulcanized resin is brominated tert-octylphenolformaldehyde vulcanized resin HY-2056, and the crosslinking agent is crosslinking agent HV-268.

[0032] The specific method is as follows: Use an open mixer or internal mixer to mix the rubber material evenly according to the proportions and compress it into sheets. The rubber material is pressed into small pieces with a thickness of (2-3) mm and no larger than 200 mm x 200 mm. Then use a rubber cutter to cut the pieces. Then, add the green butyl rubber material and No. 120 solvent oil into the kneader and stir for 180 minutes.

[0033] Red glue 2 is made of the following raw materials in parts by weight: HF822 transparent glue and bright red glue are stirred with a stirring rod to form a red glue with uniform texture.

[0034] Experiments show that after the three-time gluing method is used, the tape product can be firmly bonded to the positioning part without worrying about the residual talcum powder on the tape inside the tape product. It has been verified that the bonding strength can reach more than 2.18kN / m, and the bonding performance is excellent. The positioning line made by this method has beautiful appearance, low cost, easy operation, strong bonding, and stable performance. It will not be contaminated on the equipment in an environment of -55℃~60℃ and under a certain load. It can greatly improve the use quality of the tape product and enhance user satisfaction with the product.

[0035] The above description is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be included in the scope of protection of the claims.

Claims

1. A method for preparing a positioning tape, characterized in that: The following steps are involved: Using polyester-cotton cloth as the supporting material, (1) green butyl rubber is first prepared, and the green butyl rubber is mixed with a solvent to prepare butyl paste 1, which is then coated on one side of the polyester-cotton cloth by a glue coating machine. The paste penetrates into the interior and surface of the polyester-cotton cloth to form a film of a certain thickness; (2) after the solvent evaporates, vulcanization is carried out; (3) after vulcanization is completed, red paste 2 is prepared, and the red paste 2 is continued to be coated on the side coated with butyl paste 1 by a glue coating machine; (4) natural adhesive is coated on the other side of the polyester-cotton cloth; (5) after the three pastes are coated, the cloth can be cut into the specified positioning lines or positioning marks according to actual needs.

2. The method for preparing a positioning tape according to claim 1, wherein: In step (1), the green butyl rubber material is prepared from the following raw materials in parts by weight: 55 parts of butyl rubber, 6 parts of vulcanized resin, 0.2 parts of cross-linking agent, 6 parts of zinc oxide, 1.5 parts of stearic acid, and 2.5 parts of phthalocyanine green.

3. The method for preparing a positioning tape according to claim 2, wherein: The preparation method of the butyl rubber slurry 1 is as follows: using an open mill or an internal mixer to mix the rubber material uniformly according to the proportion and press it into sheets, pressing the rubber material into blocks, then using a rubber cutter to cut the material, and then loading the sheet and solvent into a kneader to obtain the butyl rubber slurry 1.

4. The method for preparing a positioning tape according to claim 1, wherein: In step (3), the red glue 2 is made of the following raw materials in parts by mass: 80 parts of nylon transparent glue and 20 parts of bright red glue.

5. The method for preparing a positioning tape according to claim 4, characterized in that: The preparation method of the red glue 2 is as follows: using a stirring rod to stir nylon transparent glue and bright red glue into a red glue with uniform texture.

6. The method for preparing a positioning tape according to claim 1, characterized in that: In step (3), after applying the red glue 2, leave it for at least 24 hours, and then apply natural adhesive on the other side of the polyester-cotton cloth.

7. The method for preparing a positioning tape according to claim 1, characterized in that: In step (2), the process conditions for vulcanization are: vulcanization temperature 120±5°C, vulcanization pressure 0.30-0.35MPa, and vulcanization time 78-80min.

8. The method for preparing a positioning tape according to claim 1, characterized in that: After applying the glue three times, leave it for at least 24 to 48 hours.

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