KR102081368B1 - Sticker structure and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a sticker structure comprising: a base sheet with elasticity; a first adhesive layer applied to one side of the base sheet and attached to or peeled from an attached surface; a second adhesive layer applied between the first adhesive layer and the base sheet to improve the adhesion between the first adhesive layer and the base sheet; and a coating layer applied to the other side of the base sheet to provide a waterproof function to the base sheet.

Description

Sticker structure and manufacturing method thereof

The present invention relates to a sticker structure and a method of manufacturing the same. More particularly, the residue of the adhesive on the adhered surface when peeled from the adhered surface of the fibrous tissue does not easily peel off even after washing when attached to the adhered surface of the elastic fibrous tissue. It relates to a sticker structure and a method of manufacturing the same that can be peeled off without being present.

In general, a garment, such as clothes, is optionally carried out by attaching or transferring a sticker to implement a variety of designs on the adhered surface.

The sticker structure includes a base sheet, a release agent layer, a print protective layer, and a print layer, as disclosed in Japanese Patent Laid-Open Publication No. 10-2003-00660884.

Here, the sticker structure, when using the adhesion method further comprises an adhesive layer, and after being carried out on the adhered surface, the base sheet and the release agent layer is peeled and removed, at this time, the base sheet is a paper or a plastic film and the like is used release agent The layer is a silicon-based or wax-based is used a lot and the printing layer is formed on the print protection layer ink-based printing containing the pigment by a printing method such as silk printing, offset printing.

However, in the conventional sticker structure, when the base sheet is a transfer sheet, the print protective layer forms an outer surface by peeling and removing the base sheet and the release agent layer after being attached to the adhered surface through a transfer method. In the case of not having heat resistance and mechanical properties, there is a problem in that the print layer is easily cracked or smeared or discolored due to washing.

In addition, when the base sheet has an adhesive layer, the base sheet should be attached to the adhered surface with excellent adhesion. When the adhered surface is a fibrous structure, the adhesive layer has a small adhesive surface area with the transfer sheet due to the elasticity of the adhered surface. If there is no separate composition to enhance the adhesive strength and there is a problem that the adhesive strength is greatly reduced.

Thus, in recent years, it can be carried out by easily attaching or detaching a sticker on the adhered surface of the clothing such as clothes, etc., a situation in which a sticker structure that can maintain a high adhesion even after washing and can be easily removed during peeling has emerged.

Therefore, an object of the present invention is to form a pressure-sensitive adhesive layer applied 1.5 times to 1.7 times more than the general coating amount on one surface of the base sheet having elasticity to be stretched at the same time with a stretchable fiber tissue to improve adhesion It is to provide a structure and a method of manufacturing the same.

In addition, an object of the present invention is to coat the polyurethane on the other side of the base sheet having elasticity to improve the water resistance and water resistance of the pressure-sensitive adhesive formed on one side of the base sheet and to improve the printability of the print layer formed on the other side of the base sheet It is to provide a sticker structure and a method of manufacturing the same.

It is also an object of the present invention to provide a sticker structure and a method of manufacturing the adhesive layer which is applied to one surface of the base sheet to be completely bonded to the base sheet so that the adhesive layer can be easily peeled off when attached to the adhered surface.

On the other hand, the object of the present invention is not limited to the above-mentioned object, other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, a base sheet having elasticity; A first adhesive layer applied to one surface side of the base sheet and adhered to or adhered to the adhered surface; A second adhesive layer applied between the first adhesive layer and the base sheet to improve adhesion between the first adhesive layer and the base sheet; And a coating layer applied to the other side of the base sheet to provide a waterproof function to the base sheet.

In addition, according to the invention, the step of applying a coating layer on the upper surface of the base sheet; After the second adhesive layer is applied to the lower surface of the base sheet, the first adhesive layer is applied to the lower surface of the second adhesive layer; Drying the first adhesive layer and the second adhesive layer to have a drying rate of 70% (8 ppm to 12 ppm) relative to complete drying (1 ppm to 3 ppm); First aging for 120 hours at a temperature of 60 ° C. in the aging chamber, followed by secondary aging for 120 hours at a temperature of 50 ° C., followed by tertiary aging for 120 hours at a temperature of 30 ° C. to 45 ° C. A sticker structure manufacturing method is provided.

On the other hand, it is preferable that the base sheet is a polyester fabric made of 75 or 150 pieces of water.

In addition, the first pressure-sensitive adhesive layer is a mixture of 1.1 to 1.3 parts by weight of a heat curing agent and 0.2 to 0.3 parts by weight of a room temperature curing agent based on 100 parts by weight of the rubber-based pressure-sensitive adhesive, and is applied to a thickness of 40 ㎛ to 45 ㎛ desirable.

Moreover, it is preferable that a polyurethane primer is apply | coated to the thickness of 4 micrometers-6 micrometers in a 2nd adhesive layer.

Moreover, as for a coating layer, it is preferable that polyurethane is apply | coated to thickness of 25 micrometers.

Therefore, according to the present invention, the adhesive layer coated 1.5 times to 1.7 times or more than the general coating amount on one surface of the elastic substrate sheet can be configured to stretch at the same time with the elastic fiber structure to improve the adhesion.

In addition, by coating a polyurethane on the other side of the base sheet having elasticity, it is possible to improve the water resistance and water resistance of the pressure-sensitive adhesive formed on one side of the base sheet and to improve the printability of the printing layer formed on the other side of the base sheet.

In addition, the pressure-sensitive adhesive layer applied to one surface of the base sheet may be completely bonded to the base sheet so that the adhesive layer may be easily peeled off when it is impregnated to the adherend.

On the other hand, the effects of the present invention is not limited to the effects mentioned above, other effects that are not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The sticker structure according to the preferred embodiment of the present invention, the elasticity of the base sheet, the first adhesive layer, which is applied to one surface side of the base sheet and adhered to or adhered to the adhered surface, between the first adhesive layer and the base sheet A second adhesive layer applied to improve adhesion between the first adhesive layer and the base sheet, a coating layer applied to the other side of the base sheet to provide a waterproof function to the base sheet, and formed on the bottom surface of the second adhesive layer; And a release film for protecting the second adhesive layer.

Here, the other side of the base sheet is preferably printed through a means such as a label printer, a real-time printing machine and a UV offset printing machine that provides a variety of advertising functions.

The base sheet is a stretchable synthetic fiber, and more preferably, it is a polyester fabric made of 150 sheets of 75 dens.

Therefore, according to the base sheet, by using a polyester fabric made of 75 or 150 can be stretched, it can have elasticity, even if the adhered surface made of fibrous tissue is stretched together to prevent the base sheet from crying or twisting have.

In addition, by having a standard made of 75 water or 150 can, the first adhesive layer described below can be bonded with a stronger adhesive force, and through this, the second adhesive layer is adhered to the adhered surface when the second adhesive layer is peeled from the adhered surface. It is possible for the residue of the layer not to be present and to be peeled off entirely.

The first adhesive layer is a pressure-sensitive adhesive layer applied to one surface side of the base sheet to be adhered to the adhered surface or peeled from the adhered surface, and 1.1 to 1.3 parts by weight of a heat curing agent based on 100 parts by weight of the rubber-type adhesive to the rubber-type adhesive 0.2 to 0.3 parts by weight of the room temperature curing agent is mixed and applied to a thickness of 40 μm to 45 μm.

The rubber adhesive has a predetermined elasticity and provides an adsorption and adhesion function, and when mixed with the heat curing agent and the room temperature curing agent, stably adheres to the adhered surface, and the second adhesive layer does not leave a residue when peeling from the adhered surface. And with stronger adhesion.

Here, the rubber-type pressure-sensitive adhesive, preferably containing 38% solids, may have a known composition, detailed description thereof will be omitted.

The heat curing agent is a curing member that reacts with the rubber-type pressure-sensitive adhesive or room temperature curing agent to improve the overall physical properties such as improved impact strength and heat resistance, moisture resistance, and mechanical properties, and 100 parts by weight of the rubber pressure-sensitive adhesive 1.1 to 1.3 parts by weight is added as a standard, when it exceeds 1.3 parts by weight, the curing time is too fast to apply to the second adhesive layer is inconvenient, when less than 1.1 parts by weight curing time is too slow and elapsed for a long time Since there is a problem that the sticking foot is long after, it is preferable to have the critical significance as described above.

Here, since the heat curing agent may have a known composition, detailed description thereof will be omitted.

The room temperature curing agent is a transfer preventing member for preventing the rubber type adhesive and the heat curing agent from spreading to the outside of the adhered surface by reacting with the rubber type adhesive or the heat curing agent to cure the mixture at room temperature. 0.2 to 0.4 parts by weight based on 100 parts by weight of the rubber-based pressure-sensitive adhesive is added, in the case of exceeding 0.4 parts by weight, the curing time proceeds rapidly at room temperature, and thus the usable time of the product is greatly shortened, and less than 0.2 parts by weight. There is a problem that the rubber-type pressure-sensitive adhesive and the heat curing agent spread to the outside of the adhered surface, it is preferable to have the critical significance as described above.

Here, since the room temperature curing agent may have a known composition, detailed description thereof will be omitted.

On the other hand, the first adhesive layer is applied to a thickness of 40㎛ to 45㎛ with respect to the substrate sheet using a polyester fabric made of 150 of 75 or 150, if the thickness is less than a predetermined depth on the adhered surface Adhesion is greatly reduced due to poor penetration or weakness in water during washing, and in the case of exceeding the thickness, the adhesion is greater than a predetermined depth in the adhered surface, and the adhesion is greater than the adhesion with the second adhesive layer when peeling. Since there is a problem that the residue remains to have a, it is preferable to have the critical significance as described above.

Therefore, according to the first adhesive layer, it is possible to generate a strong adhesive force when attached to the adhered surface to have a stable adhesive state even for washing, etc., and to prevent residue from remaining upon peeling from the adhered surface.

The second adhesive layer is a pressure-sensitive adhesive layer applied between the first adhesive layer and the base sheet to improve the adhesive force between the first adhesive layer and the base sheet, and a polyurethane primer is applied to a thickness of 4 μm to 6 μm.

The polyurethane primer is an adhesive member that provides good fabric absorbency and excellent adhesion between the first adhesive layer and a base sheet using a polyester fabric made of 150 sheets of 75 denier, and is applied in a thickness of 4 μm to 6 μm. If the thickness is less than, the adhesive force is not significantly penetrated into the base sheet to a predetermined depth, or the adhesive strength is greatly reduced due to the weak properties of water during washing, and when the thickness is exceeded, the gelling layer becomes thick. Since the adhesive force with the 1st adhesive layer falls rather, it is preferable to have the critical meaning as mentioned above.

Here, since the polyurethane primer may have a known composition, detailed description thereof will be omitted.

The coating layer is a waterproof layer which is applied to the other side of the base sheet to which polyester fabrics made of 75 or 150 sheets of water is used to provide a waterproof function to the base sheet, and polyurethane is applied to a thickness of 25 μm.

The polyurethane is coated and coated on the upper side of the base sheet to provide a waterproof function to minimize the direct contact of the first adhesive layer and the second adhesive layer having a weak property in water with water, and the base sheet is As a coating member to have a higher aesthetics and to suppress the separation of the thread of the base sheet, it is applied in a thickness of 25㎛, when the thickness is less than the polyurethane is not applied to the inside of the base sheet is applied only to the surface If the waterproof function is not maximized and the thickness is exceeded, a sense of ease with the adhered surface is generated, and the polyurethane penetrates deeply into the interior of the base sheet, resulting in a shallow depth of penetration of the second adhesive layer. Since there is a problem that the adhesion of the layer is lowered, it is preferable to have the critical significance as described above.

Here, since a polyurethane is a well-known composition, detailed description is abbreviate | omitted.

On the other hand, in the present invention, since the thickness of the pressure-sensitive adhesive layer applied to the conventional substrate sheet is 20 μm to 30 μm, the amount of the first adhesive layer is approximately 1.5 to 1.7 times higher than that of the conventional substrate. It is applied to the sheet, whereby the adhesion and detachment force can be improved than before.

Hereinafter, a method of manufacturing a sticker structure according to an exemplary embodiment of the present invention will be described.

First, the coating layer is applied to the upper surface of the base sheet to improve the waterproofness and printability of the base sheet.

Here, the base sheet is a polyester fabric made of 150 or 75 of the number is used to be stably attached to the adhered surface through the elasticity, the coating layer is preferably a polyurethane layer applied to a thickness of 25㎛ on the upper surface of the base sheet. .

Thereafter, in the above state, after the second adhesive layer is applied to the lower surface of the base sheet, the first adhesive layer is applied to the lower surface of the second adhesive layer.

Here, the second adhesive layer is preferably a polyurethane primer layer applied to the lower surface of the base sheet with a thickness of 4 μm to 6 μm, and the first adhesive layer is based on 100 parts by weight of the rubber adhesive on the lower surface of the second adhesive layer. It is preferable that it is an adhesion layer in which the composition which mixed 1.2 weight part of heat hardening | curing agents and 0.3 weight part of normal temperature hardening | curing agents is apply | coated to the thickness of 40 micrometers-45 micrometers.

Thereafter, the sticker structure having the above configuration is dried in a drying chamber, wherein the first adhesive layer and the second adhesive layer are dried to have a drying rate of 70% (8 ppm to 12 ppm) compared to complete drying (1 ppm to 3 ppm). .

Thereafter, the sticker structure pretreated at the above drying rate is first aged for 120 hours at a temperature of 60 ° C. in the aging chamber, and then secondly aged for 120 hours at a temperature of 50 ° C., followed by 30 ° to 45 ° C. Complete drying is carried out in a third stage of aging for 120 hours at temperature.

Here, the post-processing or complete drying process, as described above, has a first to third aging step, in the case of having only the first aging step, when the first adhesive layer adheres to the adhered surface, the adhered surface of the first adhesive layer 80% or more of the range transferred to the outside occurs and there is a problem that there is a 40% chance of peeling off the adhered surface during washing, and if only the first to second aging step process, the first adhesive from the adhered surface during washing Although the layer was not peeled off, when the first adhesive layer is attached to the adhered surface, there is a problem that the range of transferring to the outside of the adhered surface of the first adhesive layer is 20% or less, and is a process of the first to third aging steps. In the case of having both, the first adhesive layer is peeled from the adhered surface during washing, and the residue of the first adhesive layer is present on the adhered surface when peeling from the adhered surface without transferring the first adhesive layer to the outside of the adhered surface. It can not, it is desirable to have a critical significance as described above.

Thereafter, the release film is attached to the lower surface of the first adhesive layer of the post-processed sticker structure as described above.

Hereinafter, the effect of the sticker structure according to the preferred embodiment of the present invention will be described through specific embodiments.

First, a polyurethane layer is coated with a thickness of 25 μm on the upper surface of a polyester fabric made of 150 sheets of 75 denier, and then a polyurethane primer layer is applied on the lower surface of the fabric with a thickness of 4 μm, and the polyurethane primer layer is In the state where the pressure-sensitive adhesive layer mixed with 1.1 parts by weight of a heat curing agent and 0.2 parts by weight of a room temperature curing agent was applied to a thickness of 40 μm on the lower surface thereof, the sticker structure having the above-described structure was formed in the drying chamber. After the primer layer and the adhesive layer were dried at a drying rate of 70% of complete drying, they were first aged in an aging chamber at a temperature of 60 ° C. for 120 hours and then secondly aged at a temperature of 50 ° C. for 120 hours, and then 30 The sticker structure is prepared through complete drying through a third aging step at 120 ° C. for 120 hours.

First, a polyurethane layer is coated with a thickness of 25 μm on a top surface of a polyester fabric made of 150 pieces of 75 denier, and then a polyurethane primer layer is applied on a bottom surface of the fabric with a thickness of 5 μm, and the polyurethane primer layer is In the state where the pressure-sensitive adhesive layer mixed with 1.2 parts by weight of a heat curing agent and 0.3 parts by weight of a room temperature curing agent was applied to a thickness of 43 μm on the lower surface, the sticker structure having the above-described structure was applied to the polyurethane in a drying chamber. After the primer layer and the adhesive layer were dried at a drying rate of 70% of complete drying, they were first aged for 120 hours at a temperature of 60 ° C. in the aging chamber and then secondly aged for 120 hours at a temperature of 50 ° C., followed by 37 The sticker structure is prepared through complete drying through a third aging step at 120 ° C. for 120 hours.

First, a polyurethane layer is coated with a thickness of 25 μm on the upper surface of a polyester fabric made of 150 sheets of 75 denier, and then a polyurethane primer layer is applied on the lower surface of the fabric with a thickness of 6 μm, and the polyurethane primer layer is In the state where the pressure-sensitive adhesive layer mixed with 1.3 parts by weight of a heat curing agent and 0.4 parts by weight of a room temperature curing agent is applied to a thickness of 45 μm on the lower surface, the sticker structure having the structure described above is the polyurethane in the drying chamber. After the primer layer and the adhesive layer were dried at a drying rate of 70% of complete drying, they were first aged for 120 hours at a temperature of 60 ° C. in the aging chamber, and then secondly aged for 120 hours at a temperature of 50 ° C., and then 45 The sticker structure is prepared through complete drying through a third aging step at 120 ° C. for 120 hours.

As a reference example or evaluation example of the sticker structure prepared according to Examples 1 to 3, after the polyurethane layer is coated with a thickness of 20 ㎛ on the upper surface of the polyester fabric made of 70 of 150 denier, the lower surface of the fabric After the PVC layer is applied with a thickness of 20 μm, the sticker structure is manufactured through complete drying at a drying rate of 100% in a drying chamber, and then the weight of the first ball which is light on the 30 cm and 30 mm slopes of the specimen. Vortex test to freely drop 1, 4, 8 and 12 balls of heavy 12 ball, and dry in dryer after washing in drum washing machine while attached to the surface of cotton or Gore-Tex and Coolmax fabric After peeling and peeling, the physical properties were measured by comparing the desorption test for measuring the desorption force based on the amount of the pressure-sensitive adhesive, and the results are shown in Table 1 below.

Therefore, the sticker structure according to the present invention, as shown in Table 1, it can be seen that compared to the product of Example 4 of the evaluation example, the physical properties for adhesion and desorption force is very excellent. That is, by having a sticker structure directly attached to a textile tissue, such as clothing, it can be easily attached without using heat treatment, ironing or pressing, washing and reuse after attachment, and greatly improve the printing performance through the coating layer In addition, the fabric may be used as the central substrate to minimize the shrinkage and expansion to provide a sticker structure that can be used for a long time.

In the above-described invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the invention. Therefore, the scope of the invention should not be defined by the described embodiments, but should be defined by the equivalents of the claims and claims.

Claims (10)

A base sheet having elasticity; A first adhesive layer applied to one surface side of the base sheet and adhered to or adhered to the adhered surface; A second adhesive layer applied between the first adhesive layer and the base sheet to improve adhesion between the first adhesive layer and the base sheet; And a coating layer applied to the other side of the base sheet to provide a waterproof function to the base sheet.
Base sheet,
It is a polyester fabric made of 150 pieces of 75 days,
The first adhesive layer is
1.1 to 1.3 parts by weight of a heat curing agent and 0.2 to 0.3 parts by weight of a room temperature curing agent are mixed with a rubber type adhesive based on 100 parts by weight of the rubber type adhesive, and applied to a thickness of 40 μm to 45 μm,
The second adhesive layer is,
Sticker structure, characterized in that the polyurethane primer is applied to a thickness of 4㎛ 6㎛. delete delete delete The method of claim 1, wherein the coating layer,
Sticker structure, characterized in that the polyurethane is applied to a thickness of 25㎛. Coating a coating layer on an upper surface of the base sheet; Applying a first adhesive layer to a lower surface of the second adhesive layer after the second adhesive layer is applied to the lower surface of the base sheet; Drying the first adhesive layer and the second adhesive layer to have a drying rate of 70% (8 ppm to 12 ppm) relative to complete drying (1 ppm to 3 ppm); First aging for 120 hours at a temperature of 60 ° C. in the aging chamber, followed by secondary aging for 120 hours at a temperature of 50 ° C., followed by tertiary aging for 120 hours at a temperature of 30 ° C. to 45 ° C. ,
Base sheet,
It is a polyester fabric made of 150 pieces of 75 days,
The first adhesive layer is
1.1 to 1.3 parts by weight of a heat curing agent and 0.2 to 0.3 parts by weight of a room temperature curing agent are mixed with a rubber type adhesive based on 100 parts by weight of the rubber type adhesive, and applied to a thickness of 40 μm to 45 μm,
The second adhesive layer is,
The method of manufacturing a sticker structure, characterized in that the polyurethane primer is applied to a thickness of 4㎛ to 6㎛. delete delete delete The method of claim 6, wherein the coating layer,
The method of manufacturing a sticker structure, characterized in that the polyurethane is applied to a thickness of 25㎛.