KR102634998B1 - Easy-to-detach label paper printing method and label paper printed therefrom - Google Patents

Abstract

The present invention relates to a method for printing label paper that is easily attachable and detachable and to the label paper printed thereby, comprising a fabric supply step of applying an acrylic adhesive to one side of the surface paper and combining it with a release paper to supply fabric, and removing the surface paper from the supplied fabric. A release paper separation step of separating the release paper from the release paper, a non-adhesive section forming step of forming a non-adhesive section by transferring a coating liquid to a portion of the adhesive surface of the surface paper from which the release paper is separated, and a release paper separation step on the surface paper where the non-adhesive section is formed. A release paper combining step of rejoining the separated release paper, a printing step of printing the other side of the surface paper of the fabric to which the release paper is combined, and a winding step of winding the printed fabric into a roll shape, wherein the non-adhesive section is formed. The non-adhesive section of the step means that a plurality of rectangular non-adhesive sections are formed at regular intervals, excluding the edges of the surface paper, or multiple rows of rectangular non-adhesive sections are formed in the longitudinal direction of the surface paper, excluding the edges of the surface paper. It is characterized by
According to the present invention, while meeting the standards for excellent recyclability of label paper, it is possible to implement a shape that can compensate for the weakened adhesive strength due to the formation of a non-adhesive section of the label paper, and has the effect of solving the problem of air bubbles that occur during attachment work. there is.
In addition, the acrylic adhesive used in the production of label paper not only provides an adhesive with excellent adhesion as it is moisture removable, environmentally friendly, and has excellent viscosity and durability, but also prevents deterioration and contamination, and protects the human body through antibacterial and sterilizing functions during the attachment and detachment process. It has a harmless effect.

Description

Easy-to-detach label paper printing method and label paper printed therefrom}

The present invention relates to a method for printing label paper that is easily attachable and detachable, and to the label paper printed thereby. More specifically, the present invention relates to a method of printing label paper that is easy to attach and detach, and more specifically, to a method that satisfies the standard for excellent recyclability of label paper and can compensate for the adhesive strength weakened due to the formation of a non-adhesive section of the label paper. It relates to a method of printing label paper that is easy to attach and detach, which can realize the desired shape and solve the problem of air bubbles occurring during attachment, and the label paper printed thereby.

Generally, recycling containers such as glass bottles and PET bottles that contain cosmetics, medicine, or beverages are attached with labels indicating the contents.

This versatile label paper is printed with multiple unit labels joined together, and after the label paper film is completed, it is wound into a circular roll shape and sold as a label paper product. These label papers are mainly used for classification or memo purposes to distinguish and display detailed information or specific parts of the product, and their materials include paper (for interior design or painting), fabrics (band-aids or duct tape), and synthetic resins (for box packaging). or for insulation), gold or silver foil (for electronic devices, semiconductors, or piping), urethane, etc.

The label paper is provided in the form of an adhesive sticker that lists the classification of the product or the details and related information of the product so that it can be easily identified from the outside. This means that the product name for the product is based on the applicability of the sticker. It refers to the development of sticker label paper that can be simply attached with product descriptions and product descriptions, and has a wide range of uses such as product labels, name labels, and product content labels, so it is considered one of the important items that are currently indispensable.

Recently, in order to advance industrial technology and save resources, glass bottles and plastic containers are separately collected and recycled. To improve the recycling quality of containers, label paper must not be mixed with pure containers and foreign substances in the containers must be removed. do. Therefore, when recycling, containers and labels must be separated.

There are two types of container labels: adhesive and non-adhesive. The non-adhesive type has the advantage of being easy to separate and is environmentally friendly because it does not use adhesives, but the disadvantage is that recycling is practically impossible because it is difficult to separate from the container during the cleaning process.

Typically, if a container is collected with a label still attached, the label will reduce recycling rates. Therefore, in order to recycle a container, it is essential to remove the label attached to the container. One way to remove the label from the container is to make it float in water during the washing process for recycling.

At this time, the adhesive of the label paper can generally be used to meet the adhesive usage standards of 20% of the area of the transparent PET container and 60% of the label area, which are suitable for excellent recyclability. However, due to partial use of this adhesive, a non-adhesive section is formed in the label paper, which causes problems such as weakening the adhesive strength of the label paper or generating bubbles during the attachment process.

Therefore, there is a need for the development of label paper printing technology that satisfies the standards for excellent recyclability of label paper, implements a shape that can compensate for the weakened adhesive strength due to the formation of a non-adhesive section, and solves the problem of air bubbles generated during attachment work. do.

KR 10-2111700 B1 (2020. 05. 11.) KR 10-1341395 B1 (2013. 12. 09.)

The present invention was created to solve the problems of the prior art, and the problem to be solved by the present invention is to satisfy the standard of excellent recyclability of label paper while compensating for the weakened adhesive strength due to the formation of a non-adhesive section of label paper. The purpose is to provide a label printing method that is easy to attach and detach, which can realize a shape that can be used and solve the bubble problem that occurs during attachment work.

Another purpose is to provide an adhesive that is environmentally friendly, has excellent viscosity and durability, and has excellent adhesion through the acrylic adhesive used in the production of label paper. It also prevents deterioration and contamination, and provides antibacterial and antibacterial properties during the attachment and detachment process. The purpose is to provide a label printing method that is harmless to the human body and is easy to attach and detach through a sterilizing function.

The easily attachable and detachable label paper printing method according to the present invention to achieve the above object includes a fabric supply step of applying an acrylic adhesive to one side of the surface paper and combining it with release paper to supply fabric, and removing the surface paper from the supplied fabric. A release paper separation step of separating the release paper from the release paper, a non-adhesive section forming step of forming a non-adhesive section by transferring a coating liquid to a portion of the adhesive surface of the surface paper from which the release paper is separated, and a release paper separation step on the surface paper where the non-adhesive section is formed. A release paper combining step of rejoining the separated release paper, a printing step of printing the other side of the surface paper of the fabric to which the release paper is combined, and a winding step of winding the printed fabric into a roll shape, wherein the non-adhesive section is formed. The non-adhesive section of the step means that a plurality of rectangular non-adhesive sections are formed at regular intervals, excluding the edges of the surface paper, or multiple rows of rectangular non-adhesive sections are formed in the longitudinal direction of the surface paper, excluding the edges of the surface paper. It is characterized by

In addition, in the fabric supply step, the acrylic adhesive is applied to one side of the surface paper to a thickness of 10 to 30 μm, and 2 to 5 parts by weight of a reactive emulsifier, 2 to 5 parts by weight of an antibacterial agent, and a silane couple are added to 100 parts by weight of acrylic monomer. 2 to 5 parts by weight of ring agent, 2 to 5 parts by weight of ion trap, 2 to 5 parts by weight of antifoaming agent, 2 to 5 parts by weight of surfactant, 2 to 5 parts by weight of antioxidant, 2 to 5 parts by weight of dispersant, 1 to 3 parts by weight of crosslinking agent. It is characterized in that it is manufactured by mixing 1 to 3 parts by weight of a wetting agent, 1 to 3 parts by weight of a mold release agent, and 1 to 3 parts by weight of a weathering agent.

In addition, the non-adhesive section forming step is to form a non-adhesive section by transferring a coating solution to a thickness of 3 to 5 ㎛ on the adhesive surface of the surface paper from which the release paper is separated, and the coating solution is polyol based on 100 parts by weight of silicone resin. 5 to 10 parts by weight, antibacterial agent 1 to 3 parts by weight, anti-stripping agent 1 to 3 parts by weight, curing agent 1 to 3 parts by weight, catalyst 0.5 to 2 parts by weight, dispersant 0.5 to 2 parts by weight, antifoaming agent 0.5 to 2 parts by weight, and viscosity. It is characterized in that it is manufactured by mixing 0.5 to 2 parts by weight of a conditioner.

According to the present invention, while meeting the standards for excellent recyclability of label paper, it is possible to implement a shape that can compensate for the weakened adhesive strength due to the formation of a non-adhesive section of the label paper, and has the effect of solving the problem of air bubbles occurring during attachment work. there is.

In addition, the acrylic adhesive used in the production of label paper not only provides an adhesive with excellent adhesion as it is water-separable, environmentally friendly, and has excellent viscosity and durability, but also prevents deterioration and contamination and protects the human body through antibacterial and sterilizing functions during the attachment and detachment process. It has a harmless effect.

Figure 1 is a step flow diagram showing a method of printing label paper that is easily attachable and detachable according to the present invention.
Figure 2 is a diagram showing an embodiment of the label paper according to the present invention.
3 to 5 are diagrams showing other examples of label paper according to the present invention.
Figure 6 is a diagram showing an example of use of the label paper according to the present invention.
Figure 7 is a cross-sectional view of an embodiment of the label paper according to the present invention.
Figure 8 is a cross-sectional view according to another embodiment of the label paper according to the present invention.

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

Figure 1 is a step flow diagram showing a method of printing label paper that is easily attachable and detachable according to the present invention.

Referring to the attached Figures 1 to 4, the easily attachable and detachable label paper printing method according to the present invention includes a fabric supply step (S10), a release paper separation step (S20), a non-adhesive section forming step (S30), and a release paper combining step ( It includes a printing step (S40), a printing step (S50), and a winding step (S60).

1. Fabric supply stage (S10)

The fabric supply step (S10) is a step of supplying fabric composed of applying an acrylic adhesive to one side of the surface paper 10 and combining it with release paper (not shown).

The fabric used in the present invention is made of polypropylene (PP, polypropylene) without additional processing, and oil paper with a thickness of 100 to 120 ㎛ is used as the surface paper (10) to be suitable for attachment to PET containers, etc.

In addition, it is constructed by applying an acrylic adhesive to one side of the surface paper 10 and combining it with a release paper (not shown).

In addition, the acrylic adhesive can be applied to one side of the surface paper 10 to a thickness of 10 to 30 μm.

In addition, acrylic adhesives are manufactured by mixing acrylic monomers, reactive emulsifiers, antibacterial agents, silane coupling agents, ion trappers, antifoaming agents, surfactants, antioxidants, dispersants, crosslinking agents, wetting agents, mold release agents, and weathering agents.

More specifically, based on 100 parts by weight of acrylic monomer, 2 to 5 parts by weight of reactive emulsifier, 2 to 5 parts by weight of antibacterial agent, 2 to 5 parts by weight of silane coupling agent, 2 to 5 parts by weight of ion absorber, and 2 to 5 parts by weight of antifoaming agent. parts by weight, surfactant 2 to 5 parts by weight, antioxidant 2 to 5 parts by weight, dispersant 2 to 5 parts by weight, crosslinking agent 1 to 3 parts by weight, wetting agent 1 to 3 parts by weight, mold release agent 1 to 3 parts by weight, and weathering agent 1 It is manufactured by mixing ~3 parts by weight.

The acrylic adhesive not only provides an adhesive with excellent adhesion due to its moisture separation properties, environmental friendliness, and excellent viscosity and durability, but also prevents deterioration and contamination and is harmless to the human body through antibacterial and sterilizing functions during the attachment and detachment process.

First, the acrylic monomer is designed to be environmentally friendly and have excellent viscosity and durability by using monomers that exclude environmental pollutants, including methyl methacrylate (MMA) and normal-butyl acrylic acid (BAM, butyl ester). Acrylate Monomer), 2-EHAM (2-Ethyl hexyl acrylate), 2-HEMA (2-Hydroxyethyl methacrylate), Styrene Monomer (SM), Ethyl Acrylate Monomer (EAM, Ethyl Acrylate Monomer), Acrylonitrile (AN), Methyl acrylate (MA), Methacrylamide (MAA), Acryloyl chloride (AC), Acrylic Acrylamide and itaconic acid can be used alone or in combination.

Reactive emulsifiers are essential for emulsion polymerization and stable dispersion of acrylic monomers, and play a role in improving durability by increasing initial particle generation, size control of generated particles, and particle stability. In addition, when emulsion polymerization is performed using a reactive emulsifier, the amount of emulsifier used can be reduced, less foam is generated during the polymerization process, and an adhesive with excellent adhesion can be obtained.

In the present invention, anionic emulsifiers and nonionic emulsifiers can be used as reactive emulsifiers.

More specifically, the anionic emulsifier is an alkali metal salt or ammonium salt of alkyl phenol or higher alcohol sulfuric acid; alkali metal or ammonium salts of alkyl or aryl sulfonates; It consists of at least one selected from alkali metal sulfate salts or ammonium salts of polyoxyethylene alkyl phenol ether, polyoxyethylene alkyl ether, or polyoxyethylene aryl ether.

The nonionic emulsifier consists of at least one selected from polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ether, and polyoxyethylene aryl ether.

If the reactive emulsifier is mixed below the above range, stable dispersion is not achieved during the emulsion polymerization process, and initial particle generation, size control of the generated particles, and particle stability are reduced, making it difficult to improve durability. If it is included beyond the range, the properties of the monomers will be deteriorated, causing a problem of deterioration of physical properties such as durability.

Antibacterial agent prevents deterioration and contamination of the adhesive and makes it harmless to the human body through antibacterial and sterilizing functions during the attachment and detachment process. It can be used by mixing cyclosilicate, phyllosilicate, illite, silver, zinc, and platinum ions. there is.

More specifically, for 100 parts by weight of cyclosilicate, 100 to 150 parts by weight of phyllosilicate, 20 to 30 parts by weight of illite, 3 to 7 parts by weight of silver, 3 to 7 parts by weight of zinc, and 3 to 7 parts by weight of platinum ion. It is mixing.

If the antibacterial agent is mixed below the above range, the antibacterial effect may be minimal, and if the antibacterial agent is mixed beyond the above range, the properties of the monomers are lowered, resulting in a problem of reduced physical properties such as durability. .

The silane coupling agent serves to improve adhesiveness and heat resistance properties, and can be used alone or in combination among a silane coupling agent having an unsaturated group, a silane coupling agent having a glycidyl group, and a silane coupling agent having an amino group.

As a silane coupling agent having an unsaturated group, vinyltris(β-methoxyethoxy)silane, vinyltriethoxysilane, and vinyltrimethoxysilane can be used alone or in combination.

Silane coupling agents having a glycidyl group include γ-glycidoxypropyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, and β-(3,4-epoxycyclohexyl)ethyltri Ethoxysilanes can be used alone or in combination.

Silane coupling agents having an amino group include N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane, and N-phenyl-γ-amino. Propyltrimethoxysilane can be used alone or in combination.

If the silane coupling agent is mixed below the above range, it will not help improve adhesion and heat resistance, and if mixed beyond the above range, adhesion and heat resistance will decrease due to hydrolysis. A problem arises.

In addition to the ion trapping effect, the ion trapping agent plays a role in improving heat resistance and absorption resistance even in high temperature and high humidity environments. It is zirconium-based, antimony-based, titanium-based, tin-based, bismuth-based, aluminum-based, magnesium-based, and rare earth. Inorganic compounds such as or hydrotalcite compounds, triazole compounds, tetrazole compounds, bipyridyl compounds, quinol compounds, hydroxyanthraquinone compounds, polyphenol compounds, aromatic compounds containing a carboxyl group, or aliphatic compounds containing a carboxyl group, etc. Among the organic compounds, they can be used alone or in combination.

If the ion trapping agent is mixed beyond the above range, the ion trapping effect cannot be achieved, and it is difficult to improve heat resistance and moisture resistance in a high temperature and high humidity environment. If the ion trapping agent is mixed beyond the above range, the overall physical properties are reduced. can deteriorate.

Defoaming agents are used to suppress foaming, and play a role in controlling the amount of air and reducing bubbles. Non-silicone-based defoaming agents can be used.

If the antifoaming agent is included in less than the above range, the foaming inhibition effect may be minimal, and if it is included in more than the above range, the bonding force and durability may be reduced due to the content being more than necessary.

Surfactants are used to improve adhesion to the surface paper 10 through wetting properties, and anionic surfactants are preferably used.

If the surfactant is included in an amount less than the above range, the wetting properties may be reduced and the abrasion resistance may be poor, and if the surfactant is contained in an amount exceeding the above range, the viscosity may increase and the anti-foaming property may be reduced.

Antioxidants are phenol-based antioxidants, such as tetrakis[methylene-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]methane (Tetrakis[methylene-3-(3,5- di-tert-butyl-4-hydroxyphenyl)propionate]methane), tris(3,4-di-tert-butyl-4-hydroxybenzyl)isocyanurate (Tris(3,4-di-tert-butyl- 4-hydroxybenzyl)isocyanurate), 1,3,5-trimethyl 2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene(1,3,5-trimrthyl 2,4 ,6-tris(3,5-di-tert-butyl-4-hydroxybenzl)benzene) and 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butyl-phenol)butane (1 ,1,3-tris(2-methyl-4-hydroxy-5-tert-butyl-phenol)butane) can be used alone or in combination.

Dispersants can be used alone or in combination of ammonium salts, activated amines, organic acids, and inorganic acids.

The crosslinking agent forms a cured rubber by causing a crosslinking reaction between rubber molecular chains, and includes 2,5-dimethyl-2,5-bis-(t-butylperoxy), d-t-butylperoxide, and 2,5-dimethyl-2,5-bis-(t-butylperoxy). Dimethyl-2,5-bis-(t-butylperoxy)-hexane, t-butylcumyl peroxide, bis-(t-butylperoxy-i-propyl)-benzene, dicumyl peroxide, 4,4-di -t-butylperoxy-n-butylvalerate, t-butylperoxybenzoate, 1,1-di-t-butylperoxy-3,3,5-trimethylcyclohexane, benzoyl peroxide and bis-( 2,4-dichlorobenzoyl)-peroxide can be used alone or in combination.

The humectant can be used alone or in combination of sugar, glycerin, sorbitol aqueous solution, or amorphous sorbitol aqueous solution.

The release agent may be used alone or in combination with a fluorine-containing polymer, silicone oil, metal salt of stearic acid, metal salt of montanic acid, montanic acid ester wax, or polyethylene wax.

As a weathering agent, a benzophenone type or amine type weathering agent can be used.

2. Release paper separation step (S20)

The release paper separation step (S20) is a step of separating the surface paper 10 and the release paper from the supplied fabric.

This is to make a part of the adhesive surface of the surface paper 10 on the supplied fabric non-adhesive.

3. Non-adhesive section formation step (S30)

The non-adhesive section forming step (S30) is a step of forming the non-adhesive section 20 by transferring the coating liquid to a portion of the adhesive surface of the surface paper 10 from which the release paper was separated.

More specifically, the coating liquid is transferred to the adhesive surface of the surface paper 10 from which the release paper is separated to form a non-adhesive section 20 of 40 to 70% of the area of the adhesive surface of the surface paper 10.

At this time, the coating liquid is transferred to the adhesive surface of the surface paper 10 from which the release paper is separated using a UV blade coating method to form a non-adhesive section 20 to have a thickness of about 3 to 5 μm.

Through this, it can be used to comply with the adhesive usage standard of less than 60% of the label area, which meets the excellent recyclability grade.

However, as the non-adhesive section 20 is formed at 40 to 70% of the adhesive surface area of the surface paper 10 as described above, there is a problem in that the adhesive strength of the label paper weakens or bubbles are generated during attachment to containers, etc. there is.

Therefore, the present invention implements a shape that satisfies the standards for excellent recyclability of adhesive label paper and can compensate for the weakened adhesive strength due to the formation of a non-adhesive section, thereby solving the problem of air bubbles occurring during attachment work.

First, as shown in Figure 2, a non-adhesive section 20 is formed 40 to 70% of the adhesive surface area of the surface paper 10, and the non-adhesive section 20 is located at the edge of the surface paper 10. Except, a plurality of rectangular non-adhesive sections 20 are formed at regular intervals. At this time, an adhesive surface is formed between the non-adhesive section 20 and the non-adhesive section 20 .

In general, after attaching a label to the container containing the product, a final low-temperature, high-pressure water sterilization process is performed before distribution. At this time, all edges are formed with an adhesive surface to prevent high-pressure water from penetrating into the back of the attached label. . Accordingly, the non-adhesive section 20 is formed at 40 to 70% of the adhesive surface area of the surface paper 10, while maintaining the adhesive force.

And, as shown in FIG. 3, a non-adhesive section 20 is formed of 40 to 70% of the area of the adhesive surface of the surface paper 10, and the non-adhesive section 20 is located at the edge of the surface paper 10. Except for, rectangular non-adhesive sections 20 are formed in multiple rows in the longitudinal direction of the surface paper 10. At this time, an adhesive surface is formed between the non-adhesive section 20 and the non-adhesive section 20 .

This is intended to be applied to label paper attached to a cylindrical container, and not only is the adhesive strength sufficiently maintained while a non-adhesive section 20 of 40 to 70% of the adhesive surface area of the surface paper 10 is formed, but also the adhesive force generated during the labeling process is formed. It is possible to adhere while smoothly discharging the air bubbles.

At this time, the non-adhesive section 20 is formed in a rectangular shape in the vertical direction up and down as shown in FIGS. 2 and 3, but is 40 to 70% of the area of the adhesive surface of the surface paper 10, as shown in FIG. 4. A non-adhesive section 20 is formed, and a plurality of non-adhesive sections 20 may be formed at regular intervals in a diagonal shape with an inclination of 40 to 60°, excluding the edges of the surface paper 10. At this time, an adhesive surface is formed between the non-adhesive section 20 and the non-adhesive section 20 .

Through this, the adhesive surface and the non-adhesive surface are formed alternately on the same line in the vertical direction, so that the surface paper 10 is relatively more uniformly applied to the adhesive target compared to the non-adhesive section formed on the same line in the vertical direction. It has the effect of remaining adhered. Accordingly, even if the non-adhesive section 20 is formed in an area of 40 to 70% of the adhesive surface area of the surface paper 10, the adhesive force can be sufficiently maintained.

In addition, not only can it be applied to various types of containers, but high-pressure water does not penetrate into the back of the label paper during the sterilization process performed before distribution, and air bubbles generated during the labeling process can also be discharged smoothly.

Additionally, the coating solution used in the present invention is prepared by mixing silicone resin, polyol, antibacterial agent, curing agent, catalyst, dispersant, anti-foaming agent, and viscosity regulator.

More specifically, based on 100 parts by weight of silicone resin, 5 to 10 parts by weight of polyol, 1 to 3 parts by weight of antibacterial agent, 1 to 3 parts by weight of peeling agent, 1 to 3 parts by weight of curing agent, 0.5 to 2 parts by weight of catalyst, and dispersant. It is manufactured by mixing 0.5 to 2 parts by weight, 0.5 to 2 parts by weight of antifoaming agent, and 0.5 to 2 parts by weight of viscosity regulator.

When the above coating solution is applied to some of the adhesive parts to which the adhesive has been applied, it acts as a coating to form a non-adhesive surface, has excellent strength and wear resistance, does not peel off easily, prevents deterioration and contamination, and provides antibacterial and sterilization properties during the attachment and detachment process. Due to its function, it has the characteristic of being harmless to the human body.

Silicone resin is formed by a crosslinking reaction of polyorganosiloxane and hydrogensiloxane. The crosslinking reaction may be carried out through any one reaction system selected from the group consisting of a condensation reaction system, an addition reaction system, and an ultraviolet ray or electronic curing system.

Here, it is preferable that the degree of polymerization of the silicone resin is 100 to 50,000. If the degree of polymerization is less than 100, the molecular weight of the resin is too low, resulting in poor wetting properties that prevent it from covering the entire surface of the substrate during coating, and if it exceeds 50,000, the resin's molecular weight is too low. If the molecular weight is too high, the activity of the molecules decreases, which is undesirable as coating thickness unevenness between the surfaces of the substrate occurs during coating.

Polyol improves the cohesion between polyorganosiloxane and hydrogen siloxane, a crosslinking agent, maintains adhesion even under harsh conditions, and improves adhesion to the substrate. Polyol is not particularly limited as long as it has two or more hydroxyl groups per molecule. No.

Preferably, polyacrylic polyol, polyether polyol, polyester polyol, polycarbonate polyol, and polycaprolactone polyol can be used alone or in combination.

Here, the weight average molecular weight (Mw) of the polyol is preferably 200 to 4,000. If the weight average molecular weight (Mw) is less than 200, the rigidity is large and it becomes hard and the physical properties may be weakened. If it exceeds 4,000, the rigidity is small and the strength as a fixing material is reduced. There is a problem with low physical properties such as:

If the polyol is mixed below the above range, a problem may occur where the adhesion to the substrate is reduced. If the polyol is mixed above the above range, an excessive amount of OH groups remain, which reduces stability over time and reduces the peeling ability. This rising problem can occur.

The antibacterial agent prevents deterioration and contamination of the coating solution and makes it harmless to the human body through antibacterial and sterilizing functions during the attachment and detachment process. It can be used by mixing cyclosilicate, phyllosilicate, illite, silver, zinc, and platinum ions. there is.

More specifically, for 100 parts by weight of cyclosilicate, 100 to 150 parts by weight of phyllosilicate, 20 to 30 parts by weight of illite, 3 to 7 parts by weight of silver, 3 to 7 parts by weight of zinc, and 3 to 7 parts by weight of platinum ion. It is mixing.

If the antibacterial agent is mixed in less than the above range, the antibacterial effect may be minimal, and if it is mixed in more than the above range, the physical properties may be reduced due to the content exceeding the necessary amount.

The anti-peeling agent improves adhesion, improves resistance to moisture damage, and improves oil resistance. In the present invention, vegetable oil fatty acids can be used as anti-peeling agents, such as coconut oil, palm oil, and cottonseed oil. , olive oil, grape seed oil, cottonseed oil, soybean oil, and corn oil are mixed in equal proportions, dissolved in an organic solvent, and then subjected to ozone oxidation using an ozone generator.

If the anti-separation agent is mixed in less than the above range, the moisture resistance of the composition will decrease, and if it is mixed in more than the above range, the physical properties may actually deteriorate due to the content being more than necessary.

The curing agent acts as an initiator to promote the curing reaction and allows the curing reaction to occur quickly as the compositions are mixed. In the present invention, a peroxide-based curing agent is used.

Preferably, benzoyl peroxide, t-butyl peroxybenzoate, methyl ethyl ketone peroxide, cumene hydroperoxide and 2,5-dimethylhexyl-2,5-diperoxybenzoate can be used alone or in combination. .

If the curing agent is mixed in less than the above range, the moisture resistance of the composition will decrease, and if it is mixed in more than the above range, the physical properties may be reduced due to the content exceeding the necessary amount.

The catalyst may be a platinum-based compound as a crosslinking accelerator that accelerates the crosslinking reaction between polyorganosiloxane and hydrogensiloxane.

Preferably, platinum in the form of fine particles, platinum in the form of fine particles adsorbed on a carbon powder carrier, chloroplatinic acid, alcohol-modified chloroplatinic acid, olefin complex of chloroplatinic acid, palladium, rhodium, etc. can be used.

If the catalyst is mixed below the above range, the effect may be minimal, and if the catalyst is mixed above the above range, the problem of reduced peeling force may occur due to the catalyst remaining after the reaction.

The dispersant functions to modify physical properties and may be used alone or among naphthalenesulfonic acid formalin condensate sodium salt, aromatic sulfonic acid formalin condensate sodium salt, polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, and polyoxyethylene alkyl ether. Can be used by mixing.

If the dispersant is mixed in less than the above range, the effect of modifying the physical properties may be minimal, and if it is mixed in more than the above range, the physical properties may be reduced due to the content being more than necessary.

Defoaming agents are used to suppress foaming, and play a role in controlling the amount of air and reducing bubbles. Non-silicone-based defoaming agents can be used.

If the antifoaming agent is mixed in less than the above range, the foaming inhibition effect may be minimal, and if it is mixed in more than the above range, the bonding force and durability may be reduced due to the content being more than necessary.

Viscosity modifiers include hydroxypropyl methylcellulose, sodium carboxymethylcellulose, chitosan, polyethylene glycol (PEG), polylactic glycolamide (PLGA), and polyvinyl alcohol (PVA). ), dextran, hyaluronic acid, and cross-linked hyaluronic acid can be used alone or in combination.

If the viscosity control agent is mixed below the above range, the viscosity control effect may be minimal, and if the viscosity control agent is mixed beyond the above range, the viscosity may increase more than necessary and the physical properties may deteriorate.

At this time, in the present invention, as shown in FIG. 7, when the label paper is manufactured by immediately performing the release paper bonding step (S40) below after the non-adhesive section forming step (S30), the label paper is attached to the adhesive surface of a PET container, etc. A fine gap is created due to the step formed between the adhesive side of the surface paper 10 and the non-adhesive section 20. In this case, washing water or disinfectant flows into the gap during the manufacturing process such as washing and sterilizing the product. It is undesirable because it can happen.

Therefore, in the present invention, as shown in FIG. 8, after the non-adhesive section forming step (S30), when attached to a PET container, a gap is formed due to a step between the adhesive surface of the surface paper 10 and the non-adhesive section 20. Heating to heat and compress the non-adhesive section 20 formed in the non-adhesive section forming step (S30) so that it is not formed and at the same time adheres neatly to the adhesive surface of the surface paper 10 so that it can be applied to various types of containers. A compression step (S35) may be further included.

This heat compression step (S35) heats and compresses the non-adhesive section 20 formed in the non-adhesive section forming step (S30) to prevent a step from occurring with the adhesive surface of the surface paper 10. Through this, the surface paper 10 is heated and compressed. Since there is no step between the adhesive surface of (10) and the non-adhesive section 20 formed on the adhesive surface, a gap is formed between the adhesive surface of the surface paper 10 and the non-adhesive section 20 when attached to a PET container, etc. It is perfectly attached to prevent damage, enabling neat labeling, and as a result, it can be applied to various types of containers.

At this time, the non-adhesive section 20 formed in the non-adhesive section forming step (S30) can be heat-compressed at 30 to 35 ° C. for 3 to 10 seconds, which is the adhesive surface of the surface paper 10 and the non-adhesive section. Without at all affecting the composition of the acrylic adhesive and coating liquid constituting (20), the adhesive side of the surface paper 10 is appropriately thermally deformed along the circumference of the non-adhesive section 20 during the heat compression process. This is to prevent a gap from forming between the adhesive surface of the surface paper (10) and the non-adhesive section 20, thereby eliminating any voids that may occur between the adhesive surface of the surface paper 10 and the non-adhesive section 20. This ensures that no bubbles are generated when attached.

If the non-adhesive section 20 formed in the non-adhesive section forming step (S30) is heat-compressed at less than the above temperature and time, the surface paper 10 is formed along the perimeter of the non-adhesive section 20 during the heat-compression process. ) is not properly thermally deformed, so a gap is formed between the adhesive surface of the surface paper 10 and the non-adhesive section 20, and when heat-pressing exceeds the above temperature and time, excessive heating is required. Due to the pressing temperature and time, the composition of the acrylic adhesive and coating liquid that constitutes the adhesive surface of the surface paper 10 and the non-adhesive section 20 is affected, resulting in a decrease in physical properties or the need for a non-adhesive section 20. If the compression is done more than this, a problem occurs in which the gap between the surface paper 10 and the non-adhesive section 20 may be formed larger.

4. Release paper combining step (S40)

The release paper bonding step (S40) is a step of rejoining the release paper separated in the release paper separation step (S20) to the surface paper (10) on which the non-adhesive section (20) is formed.

This is to protect both the non-adhesive section 20 and the adhesive surface of the surface paper 10 on which the non-adhesive section 20 is formed to facilitate storage and distribution.

5. Printing step (S50)

The printing step (S50) is a step of printing the other side of the surface paper 10 of the fabric to which the release paper is combined.

More specifically, this is a step of printing a specified color, text, image, figure, etc. on the other side of the surface paper 10 of the fabric to which the release paper is combined.

Here, the printing method may be printed using various output equipment such as a flexo printer, a laser printer, and an inkjet printer, and is preferably printed using a flexo printer.

This is because the ink used is cheaper than digital printing such as laser printers, inkjet printers, etc., and when printing, the embossed part of the plate is in direct contact with the fabric, so the printing is more vivid than digital printing.

As shown in Figure 5, in the present invention, after the printing step (S50), in order to ensure that the fabric is detached at once without tearing and can be easily detached without applying strong force, reinforcement is used to form reinforcement parts on the top and bottom of the fabric. A part forming step (S55) may be further included.

The reinforcing portion forming step (S55) is a step of forming a reinforcing portion 11 with a thickness relatively thicker than the fabric at the upper and lower portions of the printed fabric by folding a predetermined width along the length of the upper and lower portions of the printed fabric.

At this time, the reinforcement portion 11 may be formed to have a thickness of 1:1.3 to 1:1.5 compared to the thickness of the fabric through compression, which prevents the thickness of the reinforcement portion 11 from becoming excessively thicker than the thickness of the fabric. This is to do it.

Through this, as shown in Figure 6, when detaching the label attached to a PET container, etc., it is possible to detach at once without tearing, and it is easily detached without applying strong force.

In addition, a folded portion 12 may be further formed by folding one end of the printed fabric in the vertical direction by a predetermined width to make attachment and detachment easier and faster by acting as a handle.

At this time, it is desirable to form the folded portion 12 to have a relatively folded width 3 to 5 times larger than that of the reinforcing portion 11 so that it can clearly function as a handle.

Through this, as shown in FIG. 6, it becomes possible to attach and detach more easily and quickly by acting as a handle during detachment.

6. Winding step (S60)

The winding step (S60) is a step of winding the printed fabric into a roll shape.

According to the present invention, while meeting the standards for excellent recyclability of label paper, it is possible to implement a shape that can compensate for the weakened adhesive strength due to the formation of a non-adhesive section of the label paper, and has the effect of solving the problem of air bubbles occurring during attachment work. there is.

In addition, the acrylic adhesive used in the production of label paper not only provides an adhesive with excellent adhesion as it is water-separable, environmentally friendly, and has excellent viscosity and durability, but also prevents deterioration and contamination and protects the human body through antibacterial and sterilizing functions during the attachment and detachment process. It has a harmless effect.

Hereinafter, the present invention will be described in more detail through examples. However, it is clear to those skilled in the art that the following examples are only intended to specifically illustrate the present invention and do not limit the scope of the present invention. In other words, simple modifications or changes to the present invention can be easily implemented by those skilled in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

1: Label paper
10: Surface paper 11: Reinforcement part
12: folded portion 20: non-adhesive section

Claims (4)

A fabric supply step (S10) of supplying a fabric made by applying an acrylic adhesive to one side of the surface paper 10 and combining it with a release paper (not shown);
A release paper separation step (S20) of separating the surface paper 10 and the release paper from the supplied fabric;
A non-adhesive section forming step (S30) of forming a non-adhesive section 20 by transferring a coating liquid to a portion of the adhesive surface of the surface paper 10 from which the release paper is separated;
A release paper bonding step (S40) of rejoining the release paper separated in the release paper separation step (S20) to the surface paper (10) on which the non-adhesive section (20) is formed;
A printing step (S50) of printing the other side of the surface paper (10) of the fabric to which the release paper is combined; and
A winding step (S60) of winding the printed fabric into a roll shape;
Including,
The non-adhesive section 20 in the non-adhesive section forming step (S30) is formed in a plurality of square non-adhesive sections 20 at regular intervals, excluding the edges of the surface paper 10, or
A label paper printing method that is easy to attach and detach, characterized in that a plurality of rows of rectangular non-adhesive sections (20) are formed in the longitudinal direction of the surface paper (10), excluding the edges of the surface paper (10).
According to paragraph 1,
In the fabric supply step (S10),
The acrylic adhesive is applied to one side of the surface paper 10 to a thickness of 10 to 30 μm,
Based on 100 parts by weight of acrylic monomer, 2 to 5 parts by weight of reactive emulsifier, 2 to 5 parts by weight of antibacterial agent, 2 to 5 parts by weight of silane coupling agent, 2 to 5 parts by weight of ion absorber, 2 to 5 parts by weight of antifoaming agent, surfactant. Mix 2 to 5 parts by weight of antioxidant, 2 to 5 parts by weight of dispersant, 1 to 3 parts by weight of crosslinking agent, 1 to 3 parts by weight of wetting agent, 1 to 3 parts by weight of mold release agent, and 1 to 3 parts by weight of weathering agent. A label paper printing method that is easy to attach and detach, characterized in that it is manufactured.
According to paragraph 1,
The non-adhesive section forming step (S30) is,
A non-adhesive section 20 is formed by transferring the coating liquid to a thickness of 3 to 5 ㎛ on the adhesive surface of the surface paper 10 from which the release paper is separated,
The coating solution contains 5 to 10 parts by weight of polyol, 1 to 3 parts by weight of antibacterial agent, 1 to 3 parts by weight of anti-peeling agent, 1 to 3 parts by weight of curing agent, 0.5 to 2 parts by weight of catalyst, and 0.5 to 3 parts by weight of dispersant, based on 100 parts by weight of silicone resin. A label paper printing method that is easy to attach and detach, characterized in that it is manufactured by mixing 2 parts by weight, 0.5 to 2 parts by weight of defoaming agent, and 0.5 to 2 parts by weight of viscosity modifier.
Label paper printed using the printing method according to any one of claims 1 to 3.

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