JPH03181579A - Production device for pressure-sensitive adhesive tape - Google Patents

Abstract

PURPOSE:To produce the subject two different kinds of pressure-sensitive adhesive tape articles a comparatively high speed and at a low cost by carrying out a quick coating of a pressure-sensitive adhesive on respective different base sheets for the first and second articles using a specified continuous processing line. CONSTITUTION:The first base sheet (S10) for the first article is unwound from the first unwinder 1, subjected to coating on the release surface thereof using the first pressure-sensitive adhesive coater 2, then dried and subsequently supplied onto a transfer unit 4. On the other hand, the second base sheet (S20) for the second article is unwound from the second unwinder 7 and supplied onto the above mentioned transfer unit 4. The pressure-sensitive adhesive on the above mentioned first base sheet (S11) is then transferred onto the above mentioned second base sheet (S20) here and the resultant original raw fabric- state base sheet is then coated with a pressure-sensitive adhesive and wound around the first winder 6. The above mentioned second base sheet (S2) on which the pressure-sensitive adhesive is transferred is wound around the second winder 8, thus contriving the speeding up of the work.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an adhesive tape manufacturing apparatus, particularly two different adhesive tape manufacturing apparatuses.
The present invention relates to an apparatus for simultaneously producing two types of adhesive tapes by transferring adhesive layers onto different types of base materials.

[Conventional technology]

Conventionally, methods for producing adhesive tapes by forming an adhesive layer on a base material usually involve forming a base sheet (or film).
A method of coating directly on the surface was used.

[Problem to be solved by the invention]

However, in the conventional direct coating method described above, the adhesive layer is applied directly onto the base sheet, so depending on the physical properties of the base sheet, such as Japanese paper, an adhesive may be required. There was a problem in that the pressure-sensitive adhesive penetrated further and the adhesive was wasted.

In order to avoid this drawback, a method has been adopted in which the adhesive is first coated on another carrier material, dried/reacted and cured, and then transferred onto the base sheet, but this method also
A special carrier material is required, and after transfer, this carrier material must be collected, rolled up, and disposed of, or reused several times, but its lifespan is short, and the manufacturing process requires a separate process. Because of this, it is not possible to produce a product in a process that only requires the sheet to pass through once, which makes it unsuitable for high-speed production and poses a problem in terms of cost.

Furthermore, all of these methods are used in equipment that manufactures one type of adhesive tape product, and it is impossible to simultaneously manufacture two different types of adhesive tape products using one unit of equipment.

This invention was made in view of the above-mentioned problems with the conventional example, and it solves these problems and manufactures two different types of products using process lines that can be operated at relatively high speeds. The purpose of the present invention is to provide a cost-effective adhesive tape manufacturing machine that can be used for manufacturing adhesive tapes.

[Means to solve the problem]

Therefore, in the present invention, first and second unwinding means for first and second base sheets for different first and second adhesive tape products, and first and second adhesive tape products are provided. It consists of a coating means, a common transfer device, and a base sheet winding means for first and second products. means of engineering, means of transcription.

A first process line is formed in the order of the second adhesive coating means, the first winding means, and on the other hand, the second base sheet is the second winding means, the transfer means, The above objective is achieved by configuring a 7g2 process line to be formed in the order of the second winding means.

[Effect]

With the above-described apparatus configuration, two types of adhesive tape products each having different base sheets and adhesive layers can be manufactured cost-effectively on process lines capable of relatively high-speed operations.

〔Example〕

The present invention will be explained below based on examples.

FIG. 1 shows a schematic diagram of the configuration of an embodiment of an adhesive tape manufacturing apparatus according to the present invention.

(Structure) This device is a device for manufacturing two different types of adhesive tapes (for example, paper and cloth base materials, etc.), and has first and second base sheets S of paper and cloth, respectively, for each product.
First and second unwinding machines 1 and 7 for unwinding IO and S2゜ from the raw roll, first and second adhesive coaters 2 and 5 as respective adhesive coating means, and common to both. dryer 3, common transfer machine 4 and first and second production substrate sheets S1. Consists of S2 @ removal machine 6 and 8.

(Process/Operation) The first base sheet S1° for the first product is transferred from the first unwinding machine 1 to the first adhesive (for the second product) coater 2.
From the first adhesive reservoir, through the coating roll,
It is coated on the release surface (back surface) of the first base sheet S1°, and then dried/reacted and cured by drying sI3. The base material sheet in this state is designated as si.

The base sheet Sl fed out from here is supplied onto a transfer roll 4a of the transfer machine 4, where it passes over a pressure roll 4b disposed adjacently and parallel to the axial direction.
The first adhesive is transferred onto a second base sheet Szo for a product.

Base sheet S1o that has become the original fabric after transferring the adhesive
is then introduced into the second adhesive coater 5 and coated with the second adhesive (
(for the first product) on the adhesive surface, and the common dryer 3
The base sheet S1 that has been dried/reacted and cured is wound up by the first winding machine 6 as a first product.

On the other hand, the second base sheet S2° for the second product is unwound from the original fabric roll on the second winder 7 and transferred to the transfer machine 4.
The base sheet S2, on which the dried/reactively cured first adhesive layer has been transferred onto the adhesive surface, is fed onto the pressure roll 4b as a second product and is fed onto the second winding machine 8. @ is taken.

As mentioned above, the first. Both of the second products can be manufactured simultaneously at a relatively high speed in a process line in which each sheet passes through once.

In this way, for example, the fabric base sheet S2゜, which causes problems such as deterioration due to heat, can be coated without passing through the drying/reaction zone J11, is resistant to heat deterioration, etc., and has a mold release treatment on the back side. The paper base sheet Slo also serves as a carrier material for the adhesive layer of the second product, and the application of the adhesive is completed in a continuous process.

(Other embodiments where the second product is made of vinyl chloride, etc.) In the embodiment described in Section nJ, for example, the case where the first product is made of paper and the second product is made of cloth is explained. Figure 2 shows a schematic diagram of the configuration of another embodiment in which the product is made of vinyl chloride base material, etc., and is the same (equivalent) as in Figure i.
Components are represented by the same symbols.

Figure 2 shows the process line for the second product in Figure 1.
In order to provide an anchor effect of the adhesive layer to the vinyl chloride base material S2° between the second unwinding machine 7 and the transfer machine 4,
The undercoat coater 10 and the dryer 11, if necessary,
Between the transfer machine 4 and the second winding machine 8, there is an accumulator means for accumulating a part of the vinyl base material on the way and keeping the tension of the easily stretchable vinyl chloride base sheet S2° at a predetermined level. 9, and even in such a case, the same effects as in the first embodiment can be obtained.

In this embodiment as well, it is possible to avoid passing the adhesive drying/reaction effect zone to the vinyl chloride base sheet S2o, which is likely to undergo dimensional changes, deterioration, etc. due to heat.

〔Effect of the invention〕

As described above, according to the present invention, adhesive coating can be completed on two different types of adhesive tape products at once in a continuous process line.

Furthermore, it is possible to avoid thermal deterioration of the base material and create a production line that matches the properties of the base material.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of one embodiment of the adhesive tape manufacturing apparatus according to the present invention, and FIG. 2 is equivalent to FIG. 1 of another embodiment when the second product is made of vinyl chloride, etc. It is a diagram. 1/7...1st/2nd unwinding machine 4...Transfer machine

Claims (1)

[Claims] first and second unwinding means for first and second base sheets for different first and second adhesive tape products, first and second adhesive application means, and a common a transcription device;
a base sheet winding means for the first and second products;
The first base sheet is formed through a first process line in the order of a first unwinding machine, a first adhesive coating means, a transfer means, a second adhesive coating means, and a first winding means. Along with forming
On the other hand, the adhesive tape manufacturing apparatus is characterized in that the second base sheet is configured to form a second process line in the order of the second unwinding means, the transfer means, and the second winding means, respectively. .