JPH0953058A - Adhesive tape free from off-core winding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a single-sided adhesive tape with a separate sheet which is easy to handle by correcting the shortcoming of an off-core inherent in a conventional wound roll. SOLUTION: The easy-separation treated side of a single-sided separate sheet 3 is bonded with a tape substrate 5 through a conventional adhesive and the non easy-separation treated side of said single-sided separate sheet 3 is made up of a resin layer 6 which has a property of sticking to the tape substrate in a re-separable manner. The single-sided separate sheet 3 has an easy- separation treated side on one side and non easy-separation treated side on the other. The non easy-separation treated side of said single-sided separate sheet 3 is made up of a resin layer which has a property of sticking to the tape substrate 5 in a re-separable manner and is bonded with the side uncoated with a conventional adhesive of the tape substrate. Further, the resin which has a property of sticking to the tape substrate 5 in a re-separable manner is a resin whose Vicat softening temp. by JIS K 7206 is not less than 0 deg.C or is a re-separable adhesive whose adhesive strength by JIS Z 0237 is less than 200mg/25mm wide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-sided pressure-sensitive adhesive tape with a release sheet, which is used in various applications such as assembling process, gap filling, packaging, marking of advertising boards and the like, and attachment of notices.

[0002]

BACKGROUND OF THE INVENTION Adhesive tapes include single-sided adhesive tapes without a release sheet and single-sided or double-sided adhesive tapes with a release sheet. In the case of attachment, it is manufactured by winding it together with a release sheet on a paper tube or the like, and cutting the wound adhesive tape into tapes of a predetermined width in round slices. Each manufacturing method will be specifically described with reference to FIG.
As shown in, the single-sided adhesive tape 20 without the release sheet is
Adhesive is directly or indirectly applied to the tape base material 21 that has been treated to make it difficult for the adhesive to adhere to one surface, to form a two-layer structure consisting of the tape base material and the adhesive layer 22, and a paper tube or the like. It was rolled up and manufactured.

Further, as shown in FIG. 4, double-sided adhesive tape 3
0 is a double-sided release sheet 23 whose both sides have been subjected to an easy release treatment, coated with an adhesive on one side, and the tape base material 21 is bonded to the surface of the adhesive coated on the double-sided release sheet, and the ordinary adhesive is applied. By applying the agent directly or indirectly to the surface of the release sheet or tape base material on which the ordinary adhesive is not adhered, the double-sided release sheet 23 / adhesive 22 / tape base material 2
1 / Adhesive 22 was formed into a four-layer structure and wound around a paper tube or the like to manufacture.

As can be seen from FIGS. 3 and 4, when these tapes are wound around a paper tube or the like, in a single-sided adhesive tape without a release sheet, the adhesive coated on the tape base material is one inner layer. It is bonded to the surface of the tape base material on the side that has been treated to make it difficult for the adhesive to adhere, and adheres to this surface. Further, in the double-sided pressure-sensitive adhesive tape with a release sheet, the pressure-sensitive adhesive coated on the tape base material is one surface of the release sheet provided with the pressure-sensitive adhesive on the tape base material on the inner layer side. Bonding occurs, and also here, adhesion between the release sheet and the tape substrate occurs. In this way, since the inner and outer layers of the wound tape are subjected to an easy peeling treatment, etc., they are weaker than the adhesive strength of the tape base material and the adhesive, but they are sticky to some extent and do not slip. Therefore, the winding state is maintained without causing the collapse of the winding. Therefore, when manufacturing a tape having a narrow width by cutting a wide material into a predetermined width, it is possible to manufacture these tapes by cutting the material wound around a paper tube into a ring slice. It was easy.

However, as shown in FIG. 5, in the one-sided pressure-sensitive adhesive tape 40 with a release sheet, a normal pressure-sensitive adhesive is applied to the surface of the release sheet 23 which has been subjected to the easy-release treatment, and then the tape base material is joined. The release sheet 23 and the tape base material 21 have a three-layer structure in which the pressure sensitive adhesive 22 is sandwiched between the release sheet 23 and the tape base material 21 and are wound on a paper tube or the like to be manufactured. Since the surface of the tape base that does not have the adhesive adheres to the surface of the release sheet that does not have the adhesive, the contact surface is slippery and naturally collapses. Is likely to occur.

Therefore, when a single-sided pressure-sensitive adhesive tape having a wide release sheet is cut to produce a single-sided pressure-sensitive adhesive tape with a release sheet having a predetermined width, a single-sided pressure-sensitive adhesive tape without a release sheet and a double-sided pressure-sensitive adhesive tape can be used. In the method of cutting the wound single-sided pressure-sensitive adhesive tape raw material into circular slices as it is, it was difficult to cut into a constant width due to winding deviation due to the force applied at the time of cutting.

Therefore, when manufacturing a single-sided adhesive tape with a narrow release sheet, the slitting device is used to unwind the single-sided adhesive tape with the release sheet wound on a paper tube to a predetermined width. Manufacturing by cutting into multiple tapes and winding each tape around another paper tube, or by piercing a roll wound around a paper tube with a nail or roughening the tape surface It was manufactured by cutting it into round slices as it is to prevent winding misalignment.

The single-sided pressure-sensitive adhesive tape with a release sheet produced in this manner is very slippery, and particularly in the case of a tape having a narrow width, even a slight displacement due to a lateral force will cause collapse of the winding and also manual work. Due to the fact that it is often used, it was prone to collapse.

Therefore, the work of sticking these one-sided adhesive tapes with release sheets, which are likely to be rolled up, is performed while holding the one-sided adhesive tapes with release sheets with one hand while preventing the rolls from collapsing, and at the same time pinching the release sheet and holding the other hand. Therefore, it was necessary to attach a tape base material having an adhesive coated on one surface to an object.

[0010]

However, the method of using a slitting device for producing an adhesive tape with a release sheet having a narrow width from a single-sided adhesive tape stock with a release sheet is more complicated than a process of cutting into a circular slice as it is. And it requires a long time, a large energy requirement,
Moreover, since the equipment cost of the slitting device is large, an increase in manufacturing cost cannot be avoided, and it is used only in special cases.

Further, a method of cutting the raw fabric as it is by applying a nail or the like to the raw fabric of the single-sided adhesive tape with a release sheet to prevent winding misalignment by roughening the tape surface and cutting the raw fabric as it is is applicable. There is a limit to the thickness of the original fabric, and when cutting the original fabric, if the remaining amount of the original fabric decreases and the width decreases, it is no longer possible to prevent winding deviation, and the remaining portion should be discarded. There was no choice but to lose a lot of money.

On the other hand, in the conventional one-sided pressure-sensitive adhesive tape with a release sheet, which is apt to collapse, as described above, the one-sided pressure-sensitive adhesive tape with a release sheet has to be attached to an object while preventing the one-sided pressure-sensitive adhesive tape with a release sheet from rolling. In consideration of workability, the manufacturing method had to be manufactured so as not to exceed the thickness of the circumference that can be held with one hand.

Therefore, it is difficult to manufacture a long tape, especially for a single-sided adhesive tape with a release sheet having a thick tape base material, and after the tape is attached to an object, the length of the remaining tape is the object. A large amount of unusable residue of a length that cannot be used shorter than the length was generated, resulting in waste of resources and energy.

In addition, since the sticking work is a work method that requires the use of both hands without fail, the workability is poor and, for example, when it is used as a building exterior such as a gap prevention tape or a heat insulating tape to be stuck to a window frame. There was a great danger especially when working in high places.

On the other hand, a single-sided adhesive tape with a release sheet is printed, and the tape base material is die-cut, for use as a seal or label, or for applying a pressure-sensitive adhesive porous material There are widely used applications such as a gap filling tape based on a tape substrate and an impact-absorbing packing inner tape, which must be a single-sided adhesive tape with a release sheet.

Accordingly, the present invention has improved the drawback that the above-mentioned problems are likely to be rolled up, and is an economical method for producing a one-sided adhesive tape with a release sheet and a one-sided release sheet with a good workability. The purpose is to provide an adhesive tape.

[0017]

The single-sided pressure-sensitive adhesive tape with a release sheet of the present invention is a single-sided release sheet, wherein one side of the single-sided release sheet which has been subjected to an easy-release treatment is joined to a tape base material through an ordinary pressure-sensitive adhesive. The surface that has not been subjected to the easy peeling treatment is formed of a resin layer having a property of being removably attached to the tape base material.

The single-sided pressure-sensitive adhesive tape with a release sheet of the present invention has a single-sided release sheet having one surface subjected to the easy-release treatment and the other surface not subjected to the easy-release treatment. The surface not subjected to is formed from a resin layer having a property of being removably attached to the tape base material,
It is characterized in that it is bonded to the surface of the tape base material on which the usual adhesive is not formed.

Further, the resin having the property of being removably attached to the tape base material is a resin having a Vicat softening temperature of 0 ° C. or higher according to JIS K7206 or a JIS base tape.
The adhesive strength according to Z0237 is a removable adhesive having a width of 200 g / 25 mm or less, and the surface of the tape base material to which the removable adhesive is bonded, on which the ordinary adhesive layer is not formed, is easily peeled. It is also characterized by doing.

It can be seen that in order to prepare a wound body in which the winding is not broken by using the single-sided adhesive sheet with the release sheet, it is necessary to increase the adhesive force between the release sheet and the tape base material. If a normal adhesive is applied to the base material, the adhesive strength is too strong and it is not easy to attach the tape, and there are many inconveniences such as the adhesive remaining on the tape base material. It was not possible to use such an adhesive. The present invention can be re-peeled on a tape substrate such as a resin having a Vicat softening temperature of 0 ° C. or higher, which is not generally called an adhesive, or a re-peeling pressure-sensitive adhesive having an extremely low adhesive force, without using such an adhesive. It is characterized by using an adhesive resin having a property of sticking to the adhesive sheet to impart an adhesive force between the release sheet and the tape base material to prevent winding collapse.

The single-sided pressure-sensitive adhesive tape with a release sheet of the present invention has a structure as shown in FIGS. 1 and 2, and FIG. 1 shows a case where the release sheet is wound inside (hereinafter referred to as "inner winding").
2), and FIG. 2 shows a case where the release sheet is wound outside (hereinafter referred to as “outer winding”). As can be seen from the figure, when the single-sided pressure-sensitive adhesive tapes 1 and 2 with a release sheet of the present invention are considered as a wound body in a wound state,
In both cases of inner winding and outer winding, the easily peelable surface R of the single-sided release sheet 3 is joined to the tape base material 5 with the ordinary pressure-sensitive adhesive 4 sandwiched between them, and the easy release treatment of the release sheet 3 is performed. The surface not applied is made of an adhesive resin 6 having a property of being removably attached to the tape base material. On the other hand, when pulling back the tape and looking at the structure of the tape itself, the positional relationship between the release sheet and the tape base material is reversed,
For inner winding, the surface R of the single-sided release sheet 3 subjected to the easy release treatment
However, while it is bonded to the ordinary pressure-sensitive adhesive 4 formed on the tape base material, it can be re-peeled on the tape base material which is the surface of the single-sided release sheet 3 which has not been subjected to the easy peeling treatment in the outer winding. The adhesive resin 6, which has the property of sticking to, adheres to the surface of the tape base material 5 on the side where the adhesive layer is not formed.

By forming the pressure-sensitive adhesive tape of the present invention on the outer winding as shown in FIG. 2, the release sheet can be left attached to the tape base material after being attached to the object. The sheet can function as a protective sheet for the surface of the tape substrate.

As the adhesive resin which can be used in the present invention and has the property of being removably attached to the tape substrate, JI
A resin having a Vicat softening temperature of 0 ° C. or higher according to SK7206 is applied, and in order to form this resin layer on the surface of the single-sided release sheet which has not been subjected to the easy release treatment, a solution or suspension of such resin is applied. The resin layer can be formed either by drying to form the resin layer or by laminating.

Examples of the resin suitable for application as a solution or suspension include, but are not limited to, specific acrylic emulsions, polyvinyl butyral, and epoxy resins. In addition,
When a styrene-acrylic resin is used, favorable results are obtained because it is easy to adjust the sticking property according to various tape base materials.

Specific examples of the resin suitable for the laminate include, but are not limited to, specific polyvinylidene chloride and aliphatic polyester. When the epoxy-modified polyvinylidene chloride is used, when the tape base material is a soft vinyl-based resin containing a plasticizer such as a phosphoric acid ester, the sticking property is sufficiently obtained and a preferable result is obtained.

In the present invention, the reason why the adhesiveness is exhibited by a resin having a Vicat softening temperature of 0 ° C. or higher, which is not a pressure-sensitive adhesive, is not clear, but these resins form a hydrogen bond or an ionic bond with the tape substrate. It is considered that this is partly due to the weak bond such as and the generation of electrostatic attraction. Therefore, as the structure of the resin, a highly polar resin such as a styrene-acrylic copolymer containing a functional group or an epoxy-modified polyvinylidene chloride is preferable, and C═O or N is included in the molecule.
A resin that contains H and OH and is moist and sticky to the touch is suitable. However, the adhesiveness of these resins significantly changes depending on the material of the tape base material, and when the tape base material does not have a functional group that causes hydrogen bonding or ionic bonding, the Vicat softening temperature is 0 ° C or higher. Resin does not exhibit much adhesion. On the other hand, when the tape base material is soft vinyl chloride containing a large amount of highly polar plasticizer such as cresol phosphate or silicone resin containing a large amount of silicic acid units, epoxy modification with a Vicat softening temperature of 0 ° C or higher is performed. Polyvinylidene chloride and styrene-acrylic copolymers show remarkable adhesion. As described above, the present invention uses a resin having a Vicat softening temperature of 0 ° C. or higher,
Even if the resin surface on the release sheet is touched, there is almost no tackiness, and the adhesiveness appears only when it is pressed against a compatible tape substrate.

On the other hand, in the present invention, a removable pressure-sensitive adhesive having an extremely small adhesive force can also be used as a resin having a property of sticking to the tape base material in a most releasable manner. In this case, the adhesive strength of the removable adhesive is J with the tape base material.
It is necessary that the adhesive strength according to IS Z0237 is 200 g / 25 mm width or less, and it can be produced by applying and drying these removable pressure-sensitive adhesives. As a resin having an adhesive force according to JIS Z0237 with such a tape base material of 200 g / 25 mm width or less,
For example, specific acrylic solutions, acrylic emulsions, rubber solutions and the like can be enumerated, but are not limited to these, and plasticizers, cross-linking agents, oils, etc. are added to ordinary adhesives. However, it can also be obtained by reducing the adhesive strength. As described above, the releasable pressure-sensitive adhesive and the pressure-sensitive adhesive force used in the present invention may vary depending on the type of the tape substrate, but it is an acrylic pressure-sensitive adhesive whose pressure-sensitive adhesive force is adjusted to match the tape substrate, and the pressure-sensitive adhesive force according to JIS Z0237 is If the width of 20 to 70 g / 25 mm is used, particularly good results are obtained in terms of workability at the time of re-peeling.

Further, in the case of using a removable pressure-sensitive adhesive having a very small adhesive force as the resin having the property of being most removably attached to the tape base material, the tape base material is easily peelable such as polyester or polyurethane. If it is made of a material that does not have it, the removable adhesive used may remain on the surface of the single-sided adhesive tape after it is attached to the target object, and depending on the application, the appearance may be lost due to the adhesion of dust. It may cause an unfavorable situation such as deterioration of hygiene and hygiene. Therefore, it is necessary to prevent the removable pressure-sensitive adhesive from remaining on the tape base material, which occurs when the tape base material is mainly made of a material such as a halogenated polymer or polyolefin having easy peelability. It can be said that this is a secondary problem that may occur depending on the type of tape base material used.

In order to solve this problem, the surface of the tape base material that comes into contact with the releasable pressure-sensitive adhesive coated on the roll wound with the tape is subjected to an easy-peeling treatment, whereby It is possible to give a characteristic that is hard to remain on the surface of the tape substrate.

The easy peeling treatment applied to the surface of the tape substrate includes a treatment utilizing chemical properties and a treatment utilizing physical properties, and further, treatment utilizing chemical properties and physical properties were utilized. A synergistic effect may be expected by using the treatment in combination.

Examples of the treatment method utilizing chemical properties include various methods such as a treatment of covering the surface of the base material with a substance which imparts easy peeling property such as silicone, halogenated organic compound, alkylated compound or olefin, Easy peelability can be imparted by covering the surface of the tape base material with which the removable pressure-sensitive adhesive comes into contact with a substance that is unlikely to cause hydrogen bonds, ionic bonds, and the like.

The treatment method of covering the surface of the tape base material with silicone, a halogenated organic substance, an alkylated compound, an olefin or the like includes, for example, applying a silylating agent, a fluorinating agent, an alkylating agent, etc. Direct modification, spraying with silicone, halogenated organic compounds, alkylated compounds, olefins, etc., coating with various coaters, silylated resin, halogenated resin or alkylated There is a method of laminating a film or sheet made of resin or olefin resin with an adhesive or a method of dry laminating with heat, etc. The processes are combined.

The treatment method utilizing physical properties includes means characterized by being accompanied by embossing treatment. Particularly when the tape substrate is made of a porous material, smoothing of the substrate surface is also used. The effect increases if measures are taken. this is,
The embossing treatment reduces the area of the tape base material that comes in contact with the removable pressure-sensitive adhesive to give easy release properties, and smoothes the tape base material surface especially when the tape base material is made of a porous material. By using this treatment together, it is possible to prevent the removable adhesive from penetrating into the surface pores of the tape substrate and leaving the removable adhesive on the tape substrate. This is because it can be

There are various embossing methods such as a method involving mechanical cutting, a method involving softening by heat, a method of joining formed materials, and an embossing method involving smoothing. The treatment includes, for example, a method for producing while embossing the tape substrate itself, a method involving partial dissolution with a solvent, a method involving softening by heat,
There are various methods such as a method of joining non-porous molded materials, and each method is not limited to a specific method.

Specific methods for subjecting the surface of the tape substrate to smoothing embossing include the following various methods depending on the properties of the tape substrate and the manufacturing process.

For example, when the tape base material is molded in a manufacturing process including extrusion molding from a die, the tape base material itself can be manufactured by embossing by pulling it out from the extrusion die via a knurling roll. When the tape base material is molded in a manufacturing process including a foaming treatment, a method can be used in which one side of the unfoamed tape base material is pressed against a belt made of a coarse cloth or the like to foam.
When the tape base material is made of a material with physical properties suitable for cutting, a method of directly applying mechanical cutting to the tape base material can be used, and by using a heated knurled roller, the tape surface can be easily formed. When softening and embossing can be performed, a method involving softening by heat can be used, and a tape base material made of a porous material easily causes a slight partial dissolution on the surface with a solvent, and a knurled roller or the like is used. When the embossing treatment can be performed simultaneously with the smoothing by closing the surface pores to such an extent that the removable adhesive does not penetrate the porous tape substrate,
A method involving partial dissolution with a solvent can be used, and if a film having irregularities formed on the surface can be joined by adhesion or fusion, a method of joining a non-porous molded material can be used. In addition, there are various methods such as combining a method of treating the surface of the tape substrate with a primer in advance, if necessary, and the method is not limited to a particular treatment method.

As described above, the essence of the present invention is that the one-sided release sheet subjected to the easy-release treatment is bonded to the tape base material with the ordinary pressure-sensitive adhesive sandwiched between the one-sided release sheet and the easy-release treatment. The uncoated surface is characterized by being made of a resin having a property of being removably attached to these specific tape base materials, and is not limited to the above resin coated or laminated. Alternatively, for example, the release sheet itself may be made of a resin having such properties. Examples of such a material include a Teflon film which has been subjected to a primer treatment for enhancing the adhesiveness on one side.

The single-sided release sheet used in the present invention is subjected to an easy release treatment on one side of a paper or a polymer film such as PET, OPP, PE to reduce the adhesive strength with an ordinary pressure-sensitive adhesive and to adhere to the release sheet. The agent can be easily peeled off, and the easy peeling treatment can be carried out by a treatment method such as silicone coating or fluorocarbon coating. As such a release sheet, a general commercially available one can be used.

As the tape base material, various materials such as resin, metal, cloth and paper can be used depending on the application of the adhesive tape. In addition, as an ordinary pressure-sensitive adhesive, an acrylic or rubber-based pressure-sensitive adhesive is generally widely used, and the pressure-sensitive adhesive strength according to JIS Z0237 is 300 g / 25 mm width or more depending on the use of the pressure-sensitive adhesive tape, and particularly permanent adhesion is required. In this case, a material having an adhesive force of 1000 g / 25 mm width or more can be used.

[0040]

BEST MODE FOR CARRYING OUT THE INVENTION In order to produce the single-sided pressure-sensitive adhesive tape with a release sheet of the present invention, there are roughly five types of production methods as follows, which are a tape base material, a release sheet, and an ordinary pressure-sensitive adhesive. The resin is appropriately selected and manufactured depending on the property of the resin having the property of being removably attached to the tape base material. The outline of the manufacturing method is shown below.

In the first method, a resin having a property of being removably attached to a tape base material is adhered and formed on the surface of the release sheet which has not been subjected to the easy release treatment, and a normal pressure-sensitive adhesive is applied to the easily peeled surface. Is applied and dried, and then a tape base material is joined to the pressure-sensitive adhesive layer to produce the release sheet-attached single-sided pressure-sensitive adhesive tape stock.

The second method is to prepare a release sheet in which a resin having a property of being removably attached to a tape base material is attached to the surface of the release sheet which has not been subjected to the easy release treatment,
Separately from this, a normal adhesive is applied directly to the tape substrate,
A method for producing a single-sided pressure-sensitive adhesive tape raw sheet with a release sheet of the present invention, which comprises producing a dried tape substrate and then joining an easily peeled surface of the release sheet and a layer of a usual pressure-sensitive adhesive on the tape substrate. is there.

The third method is to produce a release sheet in which a resin having a property of being removably attached to a tape base material is attached and formed on the surface of the release sheet which has not been subjected to the easy release treatment,
Separately from this, a normal pressure-sensitive adhesive is applied to the easily peeled surface of the process release paper, dried, and then a tape base material is bonded to this to produce a tape base material with process release paper that has the normal pressure-sensitive adhesive. To do.
Then, the step is a method for producing a single-sided pressure-sensitive adhesive tape raw sheet with a release sheet of the present invention by joining the pressure-sensitive adhesive on the tape base material and the easily peelable surface of the release sheet while peeling and collecting the release paper. .

In the fourth method, a resin having a property of being removably attached to the tape base material is adhered and formed on the surface of the release sheet which has not been subjected to the easy peeling treatment, and then the tape base material of the release sheet is formed. One sided adhesive with a release sheet of the present invention, which is obtained by joining a tape base material to a resin surface having a property of removably adhering, and further applying an ordinary pressure-sensitive adhesive to the exposed surface of the tape base material and drying. This is a method of manufacturing a tape raw material.

In the fifth method, a resin having a property of removably adhering to the tape base material is adhered and formed on the surface of the release sheet which has not been subjected to the easy peeling treatment, and the resin is re-applied to the tape base material of the release sheet. To prepare a release sheet-tape base joined body in which a tape base is joined to a resin surface having a property of being releasably attached, separately from this, a normal pressure sensitive adhesive is applied to the easily peeled surface of the process release paper, Dry to form an adhesive layer on the process release paper. Then, while peeling and collecting the process release paper, the pressure-sensitive adhesive on the process release paper and the tape base surface of the release sheet-tape base joined body are bonded together to produce the single-sided pressure-sensitive adhesive tape stock with release sheet of the present invention. Is the way to do it.

A more detailed description will be given below with reference to examples.

[0047]

【Example】

Example 1 As an adhesive for laminating, Olibain BPS1109 (acrylic polymer, solid content: 39.5%, viscosity: about 5200 cps, ethyl acetate solution) manufactured by Toyo Ink Mfg. Co., Ltd. and aromatic isocyanate type manufactured by Toyo Ink Mfg. Co., Ltd. Using a mixture of a curing agent BHS8515 (solid content: 37.5%, ethyl acetate solution) at a ratio of 100: 2.4 parts by weight, an easy release treatment of commercially available high-quality paper release paper in the process shown in FIG. The surface not coated is coated with a comma coater so that the average coating solid content is 25 g / m ^2, and after drying, a commercially available epoxy-modified polyvinylidene chloride film (trade name: Saran Wrap, Asahi Kasei Corporation) Made by T
s: 100 ° C or higher), and one surface is made of an epoxy-modified polyvinylidene chloride resin that has a property of being easily releasable on one side and a vinyl chloride marking tape substrate on the other side so that it can be re-peeled. Paper was made.

Then, on the easily peeled surface of this release-treated release paper, Orivine BPS5209 (acrylic polymer, solid content: about 36.0) manufactured by Toyo Ink Mfg. Co., Ltd. was used as a usual adhesive for vinyl chloride base materials. %, Viscosity: about 4
000 cps, ethyl acetate / toluene solution) and Toyo Ink Mfg. Co., Ltd. aromatic isocyanate curing agent BHS
8515 (solid content: 37.5%, ethyl acetate solution) was added to 1
The mixture was mixed at a ratio of 00: 2 parts by weight, and the average coating solid content was 25 g / m ² with a comma coater as shown in FIG.
After coating and drying, the vinyl chloride marking tape base material with process release paper prepared in advance is joined while peeling the process release paper, and the surface of the release paper that has not been subjected to easy release treatment is chlorinated. A one-sided adhesive vinyl chloride marking tape with release paper made of epoxy-modified polyvinylidene chloride resin, which has the property of being removably attached to a vinyl marking tape substrate, was prototyped.

A single-sided adhesive vinyl chloride marking tape with release paper made of a resin having the property that the surface of the release sheet which has not been subjected to the easy release treatment can be most removably attached to the base material of the vinyl chloride marking tape according to this trial production Like a conventional single-sided adhesive vinyl chloride marking tape with a release sheet, even if you remove the unwrapping tape and deploy it, the remaining tape unwinds naturally, which makes it difficult to transport or store. Moreover, the workability was improved because the skid did not easily occur even when cutting out on a vinyl chloride cutting mat.

Example 2 As a suspension of a resin having a Vicat softening temperature of 0 ° C. or higher, which is a resin having a property of sticking to a tape base material so as to be most releasable, Tokenrill W-460 manufactured by Toyo Ink Mfg. Co., Ltd.
(Styrene-acrylic polymer, solid content: about 55%,
Viscosity: about 1500 cps, aqueous emulsion, Ts: 3
℃ or more, Tg: 3 ° C.) is applied to the surface of the commercially available high-quality paper release paper which has not been subjected to the easy release treatment in the step shown in FIG. 8 by a reverse coater so that the average coating solid content is 25 g / m ² . Coated and dried so that one surface is easily peeled off with silicon,
On the other hand, an adhesive-processed release paper made of styrene-acrylic resin having the property of being most removably attached to the plastic tape substrate was prepared.

Then, in the step shown in FIG.
Orivine BPS1109 manufactured by Toyo Ink Mfg. Co., Ltd. (acrylic polymer, solid content about 39.5%, viscosity about 5200 cps, ethyl acetate solution) and an aromatic isocyanate manufactured by Toyo Ink Mfg. Co. System curing agent BHS8515 (solid content: 37.5
%, Ethyl acetate solution) at a ratio of 100: 2.4 parts by weight, and the average coating solid content is 2 using a comma coater.
It was coated so as to be 5 g / m ² and dried. Thereafter, the adhesive surface of the PET tape base material coated with the normal adhesive, one surface of which is easily peeled off with silicon, and the other surface of which is composed of styrene-acrylic resin having the property of being most removably attached to the plastic tape base material. The surface of the release sheet that has not been subjected to the easy release treatment is joined to the surface of the release paper that has undergone adhesion processing and then wound around a paper tube and cut into a slice of about 50 mm in width with a rotary blade cutting device. Styrene that has the property of being removably attached to a plastic tape substrate
A one-sided adhesive PET tape with a narrow release sheet made of acrylic resin was prototyped.

A single-sided adhesive PET tape with a narrow release sheet made of styrene-acrylic resin, which has the property that the surface of the release sheet that has not been subjected to the easy release treatment can be most removably attached to the plastic tape substrate according to this trial production. Is
Like the conventional single-sided adhesive PET tape with a narrow release sheet, even after releasing the winding stopper and deploying,
There was no problem in transporting or storing the tape that was left naturally after being unwound.

Example 3 In the process shown in FIG. 10, a commercially available high-quality paper release paper as a release paper, which has been subjected to an easy-release treatment, is used as an ordinary pressure-sensitive adhesive on the surface of Olivine BPS1109 manufactured by Toyo Ink Mfg. Co., Ltd.
(Acrylic polymer, solid content: about 38.5-40.5
%, Viscosity: about 5200 cps, ethyl acetate solution) and Toyo Ink Mfg. Co., Ltd. aromatic isocyanate curing agent B
HS8515 (solid content: 37.5%, ethyl acetate solution)
Was mixed at a ratio of 100: 2.4 parts by weight with a comma coater so that the average coating solid content was 25 g / m ^2, and after drying, the usual pressure-sensitive adhesive for release paper in the process was applied. A commercially available foamed polyurethane impact absorbing tape substrate having a thickness of 1.5 mm was joined to the coated surface and wound on a paper tube.

Then, in the step shown in FIG. 11, while peeling and collecting the step release paper, a normal pressure-sensitive adhesive on the foamed polyurethane impact-absorbing tape base material and one surface described in Example 2 were treated with a silicon easy peeling treatment. And the other side of the release paper made of styrene-acrylic resin, which has the property of sticking to the plastic tape base material so that it can be most releasably attached, and is wound to a diameter of about 10 cm and rotated. A width made of styrene-acrylic resin that has a property that the surface of the release sheet that has not been subjected to easy release treatment is removably attached to the plastic tape substrate by cutting it into 20 mm wide pieces with a blade cutting device. A single-sided adhesive foamed polyurethane impact absorbing tape with a narrow release paper was prototyped.

One-sided adhesive foamed polyurethane with a narrow release paper made of styrene-acrylic resin having the property that the surface of the release paper which has not been subjected to the easy release treatment is removably attached to the plastic tape substrate according to this trial production. The shock-absorbing tape does not have any trouble in transporting or storing even if you release the hand after unwinding and deploy it, and the remaining tape unwinds naturally. When it was developed so that it would adhere to the back, it was possible to continue the pasting work with one hand after that. Also,
Styrene-acrylic resin, which has the property of being removably attached to the plastic tape substrate on the surface of the release paper that has not been subjected to easy release treatment, is not an adhesive, so it can be used for secondary processing by a machine with the release paper attached. It was possible.

Example 4 In the step shown in FIG. 12, the surface of the commercially available PET release sheet which has not been subjected to the easy release treatment is subjected to JIS Z with a tape base material.
As a releasable pressure-sensitive adhesive having an adhesive force of −0237 of 200 g / 25 mm width or less, manufactured by Toyo Ink Mfg. Co., Ltd., Oliveine BPS-5227-1 (acrylic polymer, solid content: about 41.5%, viscosity: about 2000 cps, An ethyl acetate / toluene solution,) and an imine-based curing agent BXX5134 (solid content: about 5.0%, toluene solution) manufactured by Toyo Ink Mfg. Co., Ltd. were mixed at a ratio of 100: 7 parts by weight with a comma coater. A PET release sheet having a coated solid content of 10 g / m ² and dried to prepare a PET release sheet having one surface made of an easily peelable silicon surface and the other surface made of a removable adhesive agent was prepared. The adhesive strength of this removable adhesive with a stainless steel tape substrate according to JIS Z0237 is 2
Results of measurement under conditions of 3 ° C and 65% RH: approx. 40 g / 25
The width was mm. Then, a commercially available 0.05 mm thick stainless steel tape base material was joined to the removable pressure-sensitive adhesive surface of the produced PET release sheet and wound up.

Then, in the process shown in FIG. 13, the exposed stainless steel surface of the joined stainless steel tape base material and the release sheet after the adhesion processing is used as a usual adhesive on the Olivene BP manufactured by Toyo Ink Mfg. Co., Ltd.
S1109 (acrylic polymer, solid content: about 39.5)
%, Viscosity: about 5200 cps, ethyl acetate solution) and Toyo Ink Mfg. Co., Ltd. aromatic isocyanate curing agent B
HS8515 (solid content: 37.5%, ethyl acetate solution)
Was mixed at a ratio of 100: 2.4 parts by weight, and the mixture was applied by a comma coater so that the average coating solid content was 25 g / m ² , dried and wound on a paper tube.

According to the trial production, the surface of the single-sided release sheet which has not been subjected to the easy release treatment is JI with the stainless tape base material.
The single-sided adhesive stainless steel tape with a release sheet, which consists of a re-peelable adhesive with an adhesive strength of about 40 g / 25 mm width according to S Z0237, closes the gap between the stainless top kitchen units in the kitchen and prevents foodstuffs, etc. from falling into the gap. It can be used as a protective tape,
Despite the fact that the stainless steel that is the base material of the tape has the property of being easily repelled and easily collapsed, even after releasing the unwinding tape and deploying it, the remaining tape naturally unwinds and is transported. I didn't have any trouble saving it. Further, when the release film was first developed so as to adhere to the spine of the tape, it was possible to continue the sticking work with one hand after that. In addition, the release film is
Since the outer winding is as shown in (1), the release sheet plays a role as a protective film for the stainless steel surface immediately after the tape is applied and until the release sheet is removed.

Example 5 JIS Z023 with a tape base material was applied to the surface of the same commercially available PET release sheet as in Example 4 which was not subjected to the easy release treatment.
7 As a re-peelable pressure-sensitive adhesive having an adhesive force of 200 g / 25 mm width or less, manufactured by Toyo Ink Mfg. Co., Ltd. Olivine BPW4
960 (acrylic polymer, solid content: about 29%, viscosity: about 3500 cps, aqueous emulsion) was applied by a reverse coater so that the average coating solid content was 20 g / m ² , dried, and one side was coated. Easy-to-peel silicone treated surface, on the other hand, a polybutadiene sheet with very similar surface properties to neoprene, and an adhesion-processed release sheet made of a removable adhesive with JIS Z0237 adhesive strength of 65 g / 25 mm width was prepared. Rolled up.

Thereafter, the process is almost the same as that shown in FIG. 10 (however, in the figure, "foamed polyurethane impact absorbing tape substrate" is "black neoprene foam heat insulating / soundproofing tape substrate").
Orivine BPS1109 manufactured by Toyo Ink Mfg. Co., Ltd. (acrylic polymer, solid content: about 39.5) as a normal adhesive on the surface of the commercially available high-quality paper release paper that has been subjected to the easy release treatment as the process release paper. %, Viscosity: about 5200c
ps, ethyl acetate solution) and Toyo Ink Mfg. Co., Ltd. aromatic isocyanate curing agent BHS8515 (solid content:
Approximately 37.5% ethyl acetate solution) was mixed at a ratio of 100: 2.4 parts by weight, and the mixture was applied with a comma coater so that the average coating solid content was 25 g / m ² , and dried.
Then, the surface of the release paper on which the normal pressure-sensitive adhesive was applied was heat-rolled, and one surface was smoothed and the other surface was smoothed and embossed, and a black neoprene foam insulation having a thickness of about 5 mm was used. / Join the smooth side of the soundproof tape base,
It was wound around a paper tube.

Thereafter, in the step shown in FIG. 15, the adhesive force according to JIS Z0237 between the exposed smoothing embossed surface of the black neoprene foam heat insulating / soundproofing tape substrate and the polybutadiene sheet of the PET release sheet is 65.
While peeling and collecting the process release paper by joining the surface coated with a removable pressure-sensitive adhesive having a width of g / 25 mm or less, it is wound into a diameter of about 30 cm, and the width is reduced by a rotary blade cutting device. Single-sided adhesive black neoprene foam with a narrow release sheet made of resin that has a property of being cut into 20 mm slices and the surface of the release sheet that has not been subjected to the easy release treatment is removably attached to the tape substrate. Prototype of heat insulation / soundproof tape.

According to this trial production, the single-sided adhesive black neoprene foam heat insulating / sound-proof tape with a narrow release sheet, in which the surface of the release sheet that has not been subjected to the easy release treatment is made of a removable adhesive, is used as a sash filling for windows. It has a performance that can be used as a heat insulating / soundproofing tape, and has a diameter of about 30 cm, which is a length that is not available on conventional single-sided adhesive heat insulating / soundproofing tapes with a narrow release sheet for filling gaps in windows. Although it is a tape measure, even if you release the tape for unwinding and deploy it, and then release your hand, the remaining tape will not unwind naturally and it will not be difficult to continue the work.
Since the release sheet is wound outside as shown in Fig. 2, if the release sheet is unfolded while attached to the spine of the tape, the sticking work can be continued with one hand, and the release film functions as a protective film. Was possible.

[0063]

According to the present invention, in the pressure-sensitive adhesive tape roll, the one-sided release sheet subjected to the easy-release treatment is bonded to the tape base material with the ordinary pressure-sensitive adhesive interposed therebetween, and the release sheet is subjected to the easy-release treatment. By forming the release sheet-attached single-sided adhesive tape of the present invention, characterized in that the surface not formed is a resin having a property of being removably attached to the tape base material, Adhesiveness can be imparted to the surface on which no pressure-sensitive adhesive is formed, and there is no fear of roll collapse. Therefore,
When manufacturing a single-sided adhesive tape with a narrow release sheet from a single-sided adhesive tape with a wide release sheet, there is no need to use an expensive slitting device, and the wound wide tape is cut into round slices as it is. It can be easily manufactured simply by In addition, it is not necessary to pierce the wound roll with a nail or the like to prevent the roll from collapsing, and almost the entire amount can be cut into a narrow single-sided adhesive tape with a release sheet. Furthermore, in the method to prevent roll collapse by sticking a nail,
Depending on the length of the nail that can be driven in, there was a limit to the length of the tape that can be wound up, but there is no such limit in the pressure-sensitive adhesive sheet with a release sheet of the present invention, and it is possible to easily manufacture even a thick tape with a long tape length. it can.

In addition, in the conventional work of sticking a single-sided adhesive tape with a release sheet that easily collapses, while holding the single-sided adhesive tape with a release sheet with one hand while holding it, the release sheet is pinched and the other hand is held. Therefore, it was necessary to attach a tape base material having a normal adhesive applied to one side to an object. However, in the work of sticking the one-sided adhesive tape with a release sheet of the present invention, there is almost no possibility that the one-sided adhesive tape with a release sheet will collapse, so that the tape is held with one hand without particularly preventing the collapse. It becomes possible to attach it to the target object just by itself, it is extremely efficient,
Work can be completed in a short time.

Further, when the tape is wound on the outside,
The release sheet remains attached to the surface of the tape base material that is not bonded to the normal adhesive, that is, remains attached to the outside of the tape base material attached to the object, and holds the tape without the need to remove the release sheet. It is possible to attach the tape directly to the target object with one hand, and the other hand can be used by the worker to maintain his posture,
The risk, especially in working at heights, is significantly reduced.

Since the single-sided pressure-sensitive adhesive tape with a release sheet according to the present invention is less likely to cause winding collapse, even a long tape having a large winding diameter can be easily handled.
The length of the remaining tape is not enough for the length of the object to be pasted, and the number of short residuals that cannot be used is reduced. In other words, it reduces the amount of waste, saves resources and energy, and is economical.

Furthermore, the single-sided pressure-sensitive adhesive tape with a release sheet according to the present invention has a structure in which the release sheet protects the surface of the tape substrate when the release sheet is left attached to the surface of the tape substrate even after being attached. In applications that are susceptible to scratches due to slight carelessness in the field of use such as applications, by actively leaving the release sheet attached until the time when the release sheet needs to be peeled off, according to the present invention. It is possible to prevent the single-sided pressure-sensitive adhesive tape with the release sheet from being scratched and deteriorating in performance.

[Brief description of drawings]

FIG. 1 is a view showing a structure of a single-sided pressure-sensitive adhesive tape with a release sheet according to the present invention when the release sheet is internally wound.

FIG. 2 is a diagram showing a configuration of the one-sided adhesive tape with a release sheet according to the present invention when the release sheet is wound on the outside.

FIG. 3 is a diagram showing a configuration of a single-sided adhesive tape without a release sheet.

FIG. 4 is a diagram showing a configuration of a double-sided adhesive tape with a release sheet.

FIG. 5 is a diagram showing a configuration of a conventional single-sided adhesive tape with a release sheet.

FIG. 6 is a diagram showing a process of producing a release paper-epoxy modified polyvinylidene chloride laminate film in Example 1.

FIG. 7 is a diagram showing a process of producing a single-sided vinyl chloride marking tape with release paper in Example 1.

FIG. 8 is a diagram showing a step of producing a styrene-acrylic resin adhered release paper in Example 2.

9 is a single-sided PET with release sheet in Example 2. FIG.
It is a figure which shows the process of producing a tape.

FIG. 10 is a diagram showing a step of producing a release paper with a tape base material joining step in Example 3.

FIG. 11 is a diagram showing a step of producing a single-sided adhesive polyurethane foam impact-absorbing tape in Example 3.

FIG. 12 is a diagram showing a process of producing a release sheet-bonded stainless steel in Example 4.

FIG. 13 is a diagram showing a step of producing a single-sided adhesive stainless steel tape with a release sheet in Example 4.

FIG. 14 is a diagram showing a step of producing a single-sided adhesive black neoprene foam heat insulating / soundproofing tape in Example 5.

[Explanation of symbols]

 1 1-sided adhesive tape with inner release sheet 2 1-sided adhesive tape with outer release sheet 3 Release sheet 4 Normal adhesive 5 Tape base material 6 Adhesive resin 10 Comma coater 11 Reverse coater 12 Dryer 20 Without release sheet Single-sided adhesive tape 21 Tape base material 22 Adhesive 23 Release sheet 30 Double-sided adhesive tape with release sheet 40 Single-sided adhesive tape with release sheet A Adhesive surface P Epoxy modified polyvinylidene chloride surface Q Styrene-acrylic resin surface R Easy release treated surface S Removable adhesive surface T Adhesive surface

Claims (5)

[Claims] 1. A surface of a single-sided release sheet that has been subjected to an easy-release treatment is bonded to a tape base material via an ordinary pressure-sensitive adhesive, and a surface of the single-sided release sheet that has not been subjected to the easy-release treatment is a tape base material. A single-sided pressure-sensitive adhesive tape with a release sheet, which is formed of a resin layer having a property of being removably attached. 2. A single-sided release sheet has one surface that has been subjected to an easy-release treatment and the other surface that has not been subjected to an easy-release treatment, and the surface of the single-sided release sheet that has not been subjected to the easy-release treatment is a tape substrate. A single-sided pressure-sensitive adhesive tape with a release sheet, which is formed from a resin layer having a property of being removably attached and is bonded to a surface of a tape base material on which a normal pressure-sensitive adhesive is not formed. 3. The single-sided pressure-sensitive adhesive tape with a release sheet according to claim 1, wherein the resin having a property of being removably attached to the tape base material is a resin having a Vicat softening temperature of 0 ° C. or higher. 4. The releasable pressure-sensitive adhesive as claimed in claim 1, wherein the resin having the property of being most removably attached to the tape base material has an adhesive strength according to JIS Z0237 of 200 g / 25 mm width or less with the tape base material. A single-sided adhesive tape with the release sheet described. 5. The single-sided pressure-sensitive adhesive tape with a release sheet according to claim 4, wherein the surface of the tape base material on which the removable pressure-sensitive adhesive is bonded, on which the ordinary pressure-sensitive adhesive layer is not formed, is subjected to easy peeling treatment.