KR102282370B1 - Adhesive cleaning pad and method for preparing the same - Google Patents

Abstract

Disclosed are an adhesive cleaning pad and a method for manufacturing the same. Adhesive cleaning pad according to an embodiment of the present invention, a pressure-sensitive adhesive composition provided so as to be able to adhere to the lower end of the cleaning fabric attached to the cleaning pusher; And a web (Web) is formed by staple fibers having a fineness of 3 to 50 Denier, but when impregnated with the pressure-sensitive adhesive composition, a penetration space for the pressure-sensitive adhesive composition is formed so that the pressure-sensitive adhesive composition can penetrate, and impregnated with the pressure-sensitive adhesive composition and dried to include a biodegradable nonwoven fabric provided integrally with the pressure-sensitive adhesive composition.

Description

Adhesive cleaning pad and method for manufacturing the same

The present invention relates to an adhesive cleaning pad and a method for manufacturing the same, and more particularly, to an adhesive cleaning pad comprising a biodegradable nonwoven fabric formed integrally with a pressure-sensitive adhesive composition provided to efficiently remove various foreign substances, and a method for manufacturing the same It relates to a manufacturing method.

As the living environment of modern people is improving, the desire of people who want to live in a clean environment is increasing. At the same time, as women's entry into society is becoming more common, not only is the distinction between men and women disappearing in many parts of household chores, where women's roles were high in the past, but also people who want to save time to spend on housework and invest in self-management and cultural life. people are increasing As a result, robot vacuum cleaners and smart washing machines have been developed and the wind of innovation is blowing in existing home appliances, and cleaning products with excellent performance that can reduce people's time and effort in a simpler way are being developed in a variety of ways.

Among them, various cleaning products have been developed to make mopping, which is the most cumbersome and energy-consuming of housework, more conveniently, and a cleaning cloth made of non-woven fabric is widely used as one of them. The cleaning cloth is generally used by fixing it to a vacuum cleaner consisting of a rod-shaped bag and a non-woven fabric mounting part provided at the end of the bag. It is usually made in the form of a flat plate with a rectangular structure, and its material is mainly PP (Polypropylene), PET (Polyester), etc. Since it is made of polymer of the same material, it absorbs foreign substances such as dust or hair by utilizing the electrostatic properties of the polymer itself.

Since such a conventional nonwoven fabric for cleaning is a principle of adsorbing foreign substances only with the static electricity of the material itself, the adsorption force for heavy dust or debris is rather weak, so there is a limit to clean cleaning. In addition, most of the conventional cleaning non-woven fabrics are formed by a spunlace method in which fibers are tangled using high-pressure water, so there is a problem of somewhat low adsorption power to foreign substances due to high smoothness. That is, when cleaning, foreign substances are only swept to one side, and complete removal from the cleaning surface is not achieved, or when the foreign substances are saturated even if adhered to the nonwoven fabric, it is difficult to remove any more foreign substances, and as a result, the cleaning efficiency is lowered. In addition, there is a disadvantage of being uneconomical because it is practically impossible to use both sides.

Accordingly, in order to overcome the limitations of the prior art and to increase the adsorption power of the cleaning nonwoven fabric, adhesive cleaning cloths in which an adhesive is applied to one surface of the base material have been developed in recent years. However, the adhesive cleaning cloth sticks to the lower base material on which the adhesive surface is wound in the process of providing it in a winding state, so when unwinding to use the cleaning cloth, product damage, such as tearing of the base material, and reduced adhesion Problems may arise. Therefore, it is essential to use a separate release paper to protect the adhesive surface, or there is a manufacturing inconvenience of releasing the upper surface of the base material so that the adhesive surface does not stick to the base material.

On the other hand, as a prior art disclosed as a patent in relation to a cleaning cloth that removes foreign substances by an adhesive or adhesive method rather than an electrostatic method, there is Korean Patent Registration No. 1106917 "Adhesive cleaning cloth and its manufacturing method". In the above patent, after applying the pretreatment layer on one side of the base material, the printing layer and the adhesive layer are sequentially formed on the top of the pretreatment layer, so that the adhesive layer is not absorbed and transmitted to both sides of the base material, thereby causing tearing of the back side of the base material by the adhesive layer In addition, although the user can easily grasp the side on which the adhesive layer is applied by the printing layer, it has a structure that cannot but use both sides, and it is made of an adhesive layer, so it can give a somewhat stiff feeling of use.

As another prior art, in Japanese Patent No. 4187341 "Roll-type cleaning tool", as a hot-melt adhesive on a nonwoven fabric having a distance between fibers of 0.3 mm or more, an adhesive having an elastic modulus of 1 × 105 Pa to 3 × 106 Pa at 20 ° C. A roll-type cleaning tool prepared by supporting the surface and inside of the nonwoven fabric so that the pressure-sensitive adhesive leaches during use is disclosed. The present applicant also disclosed a non-woven fabric for adhesive cleaning prepared by impregnating or spraying a water-soluble adhesive into a nonwoven fabric formed by needle punching through Korean Patent Application No. 10-2015-0161216 "Adhesive cleaning nonwoven fabric and manufacturing method thereof" there is.

In the case of a cleaning cloth manufactured by impregnating a nonwoven fabric with an adhesive as described above, compared to a cleaning cloth coated on one side of the nonwoven fabric, it was found that the ability to remove foreign matter was excellent, and there was an effect that both sides could be used. However, since the use of adhesive inevitably reduces the feeling of use to gently wipe the cleaning surface, the problem of allowing the user to clean with less effort while effectively removing foreign substances in the adhesive-impregnated cleaning cloth must still be solved. It remains a task to be done.

In addition, in the cleaning cloth made of only polymer such as PET, even when the cleaning cloth has reached the end of its lifespan, it does not decompose for more than 100 years, thereby causing environmental pollution. In addition, when a cleaning cloth is manufactured using only biodegradable materials in consideration of environmental pollution, mechanical strength is lowered, and thus the durability of the product is deteriorated.

Therefore, there is a need for research and development on a pressure-sensitive adhesive cleaning pad having excellent mechanical strength while decomposing in an environmentally friendly manner, including a biodegradable nonwoven fabric integrally formed with an adhesive composition provided to efficiently remove various foreign substances, and a method for manufacturing the same. .

Republic of Korea Patent No. 10-1813237 (Greentech Co., Ltd. and one other person), 2017.12.21.

Therefore, the technical problem to be achieved by the present invention is an adhesive cleaning pad having excellent mechanical strength while decomposing in an environmentally friendly manner, including a biodegradable nonwoven fabric integrally formed with an adhesive composition provided to efficiently remove various foreign substances, and a method for manufacturing the same is to provide

According to an aspect of the present invention, the adhesive composition is provided so as to be able to adhere to the cleaning fabric attached to the cleaning pusher; And a web (Web) is formed by staple fibers having a fineness of 3 to 50 Denier, but when impregnated with the pressure-sensitive adhesive composition, a penetration space for the pressure-sensitive adhesive composition is formed to allow penetration of the pressure-sensitive adhesive composition, and to the pressure-sensitive adhesive composition A pressure-sensitive adhesive cleaning pad comprising a biodegradable non-woven fabric provided integrally with the pressure-sensitive adhesive composition by impregnation and drying may be provided.

The porosity of the biodegradable nonwoven part may be 40 to 95% by volume.

The biodegradable nonwoven part includes a biodegradable material, and the biodegradable material is cellulose (Cellulose), chitin (Chitin), starch (Starch), PHA (Poly Hydroxyl Alkanoate), PHBV (Poly Hydroxy Butyrate Valerate), PVA (Poly Vinyl Alcohol), PGA (Poly Glycolic Acid), PBS (Poly Butylene Succinate), PBSA (Poly Butyleneadipate-co-Butylene Succinate), PBAT (Poly Butylene Adipate Terephthalate), PCL (Poly Capro Lactone), Polyester-amide (PolyEster-Amide), PLA (Poly latic acid), and polyester-urethane (PolyEster-Urethane) may be provided as at least one component.

The biodegradable non-woven fabric part further comprises a synthetic resin material, the synthetic resin material, PVC (polyvinyl chloride), PEG (polyethylene glycol), EVA (ethylene vinyl acetate), TPE (thermo plastic elastomer), TPU (thermoplastic polyurethane), TPS(thermo plastic starch), ENR(epoxidized natural rubber), Ionomer, SBS(styrene butadiene styren), NBR(nitrilebutadiene rubber), SEBS(styrene ethylene butylenes styrene), acrylate, ABS(acrylonitrile butadiene) styrene), polyolefin modified with compatibilizer including compatibilizer, PU (polyurethane), polyamide (Polyamide), and polyester (PET) may be provided as at least one component.

The weight ratio of the biodegradable material and the synthetic resin material may be 97:3 to 59:41.

After the biodegradable material is impregnated into the pressure-sensitive adhesive composition, the weight ratio of the biodegradable material and the pressure-sensitive adhesive composition is 10: 243 to 10: 46, and the thickness of the biodegradable nonwoven part may be 2.5 mm to 3.5 mm.

The cleaning pusher, a support having a head end of one end; and a Velcro attachment part to which the cleaning fabric is attached to one end, and a hinge coupling part hinged to the head end part at the other end and spaced apart from the hinge coupling part so as to be able to fit the cleaning fabric into the fitting coupling part is formed. It includes a head plate, and the cleaning fabric may be a microfiber fabric wrinkled so that the ^{surface area per unit area is 2 to 4m 2} /m ^{2 .}

The pressure-sensitive adhesive composition, based on 100 parts by weight of the water-soluble acrylic pressure-sensitive adhesive, polypropylene glycol and 65 (ratio of lauric acid): lauric acid (Lauric acid) contained in a weight ratio of 35 to 55:45; and 5 to 20 parts by weight of a friction improver in which polypropylene glycol having a number average molecular weight of 2000 to 3000 is mixed.

According to another aspect of the present invention, based on 100 parts by weight of the water-soluble acrylic adhesive, polypropylene glycol and 65 (ratio of lauric acid): Lauric acid and number average molecular weight contained in a weight ratio of 35 to 55:45 A pressure-sensitive adhesive composition preparation step comprising 5 to 20 parts by weight of a friction improver mixed with 2000 to 3000 polypropylene glycol; A web forming step of forming a web (Web) by staple fibers having a fineness of 3 to 50 Denier; a web impregnation step of impregnating the web in the adhesive composition; and an impregnated web drying step of drying the impregnated web, which is a web impregnated in the pressure-sensitive adhesive composition, wherein the web forms a pressure-sensitive adhesive composition penetration space provided to allow the pressure-sensitive adhesive composition to penetrate, and the web impregnation step and the web drying step An adhesive cleaning pad manufacturing method comprising a biodegradable non-woven fabric provided integrally with the pressure-sensitive adhesive composition through the can be provided.

The web forming step is a step of forming a web using the biodegradable material 31a and the synthetic resin material 31b through a needle punching method.

The impregnated web drying step may be dried for 30 seconds to 60 seconds at a temperature of 100 ˚C to 150˚C.

The porosity of the biodegradable nonwoven part may be 40 to 95% by volume.

The biodegradable nonwoven part includes a biodegradable material, and the biodegradable material is cellulose (Cellulose), chitin (Chitin), starch (Starch), PHA (Poly Hydroxyl Alkanoate), PHBV (Poly Hydroxy Butyrate Valerate), PVA (Poly Vinyl Alcohol), PGA (Poly Glycolic Acid), PBS (Poly Butylene Succinate), PBSA (Poly Butyleneadipate-co-Butylene Succinate), PBAT (Poly Butylene Adipate Terephthalate), PCL (Poly Capro Lactone), Polyester-amide (PolyEster-Amide) and polyester-urethane (PolyEster-Urethane) may be provided as at least one component.

The biodegradable non-woven fabric part further comprises a synthetic resin material, the synthetic resin material, PVC (polyvinyl chloride), PEG (polyethylene glycol), EVA (ethylene vinyl acetate), TPE (thermo plastic elastomer), TPU (thermoplastic polyurethane), TPS(thermo plastic starch), ENR(epoxidized natural rubber), Ionomer, SBS(styrene butadiene styren), NBR(nitrilebutadiene rubber), SEBS(styrene ethylene butylenes styrene), acrylate, ABS(acrylonitrile butadiene) styrene), polyolefin modified with compatibilizer including compatibilizer, PU (polyurethane), polyamide (Polyamide), and polyester (PET) may be provided as at least one component.

The weight ratio of the biodegradable material and the synthetic resin material is 97: 3 to 59: 41, and the thickness of the biodegradable nonwoven part may be 2.5 mm to 3.5 mm.

After impregnating the biodegradable material into the pressure-sensitive adhesive composition, the weight ratio of the biodegradable material and the pressure-sensitive adhesive composition may be 10: 243 to 10: 46.

According to the present invention, it has excellent mechanical strength while decomposing in an environmentally friendly manner, including the biodegradable nonwoven fabric integrally formed with the pressure-sensitive adhesive composition provided to efficiently remove various foreign substances.

1 is an exploded perspective view of a cleaning pusher set including an adhesive cleaning pad according to an embodiment of the present invention.
FIG. 2 is a view of the cleaning pusher of FIG. 1 as viewed from below.
3 is a perspective view of the biodegradable nonwoven fabric of the adhesive cleaning pad of FIG. 1 .
4 is a perspective view of the adhesive cleaning pad of FIG. 1 .
5 is a flowchart of a method for manufacturing an adhesive cleaning pad according to an embodiment of the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention are It may be implemented in various forms and is not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention may have various changes and may have various forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another, for example, without departing from the scope of the inventive concept, a first element may be termed a second element and similarly a second element. A component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between components, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described herein exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is an exploded perspective view of a cleaning pusher set including an adhesive cleaning pad according to an embodiment of the present invention, FIG. 2 is a view from the bottom of the cleaning pusher of FIG. 1, and FIG. 3 is the adhesive cleaning of FIG. It is a perspective view of the biodegradable nonwoven part of the pad, and FIG. 4 is a perspective view of the adhesive cleaning pad of FIG. 1 .

As shown in detail in FIG. 1 , the cleaning pusher set 1 including the adhesive cleaning pad 30 according to the present embodiment further includes a cleaning pusher 10 and a cleaning fabric 20 .

The cleaning pusher 10 includes a support 11 having one end of the head end 11a, and a Velcro attachment portion 12a to which the cleaning fabric 20 is attached at one end, and the other end is at the head end 11a. It includes a head plate 12 having a hinge coupling part 12b to be hinged and provided to be spaced apart from the hinge coupling part 12b, and a fitting coupling part 12c provided to be able to fit the cleaning fabric 20 is formed. .

Therefore, the cleaning fabric 20 is provided so that it can be easily attached to the Velcro attachment part 12a, but the cleaning fabric 20 can be used by fitting the cleaning fabric 20 to the fitting part 12c as needed. That is, the cleaning fabric 20 having one surface that is not attached to the Velcro attachment part 12a or lowered adhesion to the Velcro attachment part 12a may also be used by fitting it to the fitting part 12c.

On the other hand, the adhesive cleaning pad 30 according to the present embodiment, which is provided so as to be able to adhere to the cleaning fabric 20 , includes an adhesive composition 33 and a biodegradable nonwoven part 31 .

The pressure-sensitive adhesive composition 33 provided so as to be able to adhere to the lower end of the cleaning fabric 20 attached to the cleaning pusher 10 is based on 100 parts by weight of a water-soluble acrylic adhesive, lauric acid and a number average molecular weight of 300 to 3,000 of polyethylene glycol or polypropylene glycol is mixed with 5 to 20 parts by weight of a friction improver.

In the case of the water-soluble acrylic pressure-sensitive adhesive according to the present embodiment, it may be generally prepared as an acrylic pressure-sensitive adhesive applied to the adhesive cleaning sheet. This means a water-soluble acrylic pressure-sensitive adhesive polymerized from an acrylic monomer, a surfactant, and an initiator, and preferably, it may be polymerized using 4 to 10 parts by weight of a surfactant and 2 to 7 parts by weight of an initiator based on 100 parts by weight of the acrylic monomer. . In this case, the acrylic monomer, surfactant and initiator may be emulsion-polymerized using water as a solvent, but the scope of the present invention is not limited thereto.

The acrylic monomer may include, for example, (i) an alkyl (meth)acrylic acid ester monomer; and (ii) unsaturated carboxylic acid and an unsaturated monomer containing a hydroxyl group, and the acrylic monomer may be included in a weight ratio of 9:1 to 7:3 for effective adhesion.

However, as the (i) alkyl (meth) acrylic acid ester monomer, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate , isobutyl acrylate, t-butyl methacrylate, pentyl methacrylate, hexyl methacrylate, heptyl acrylate, isooctyl acrylate, octyl methacrylate, 2-ethylhexyl acrylate, isodecyl acrylate, decyl At least one selected from the group consisting of methacrylate, dodecyl methacrylate and isobornyl methacrylate may be used, and (ii) unsaturated carboxylic acid and hydroxyl group-containing unsaturated monomers include acrylic acid, itaconic acid, maleic acid, Fumaric acid, methacrylic acid, ethyl methacrylic acid, hydroxymethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate At least one selected from the group consisting of acrylates may be used.

In addition, in the present invention, the surfactant and the initiator are not particularly limited as long as they are generally applied to prepare a water-soluble acrylic pressure-sensitive adhesive, but the surfactants include monoalkyl sulfate, alkyl polyoxyethylene sulfate. ), an anionic surfactant including alkylbenzene sulfonate and sodium dodecyl sulfate or a nonionic surfactant such as polyoxyethylene alkyl ether, and the initiator is sodium peroxide sulfate (Ammonium persulfate), sodium bicarbonate (Sodium bicarbonate), calcium persulfate (potassium persulfate), and any one of sodium hydrogen sulfate (sodium bisulfate) may be used.

The pressure-sensitive adhesive composition 33 included in the pressure-sensitive adhesive cleaning cloth according to the present embodiment includes a friction improver together with a water-soluble acrylic pressure-sensitive adhesive, and the friction improver adheres to the pressure-sensitive adhesive composition penetration space 32 without degrading the adhesive properties of the acrylic pressure-sensitive adhesive. As well as helping the composition 33 to permeate well, it is very important because it serves to reduce frictional force on the cleaning surface when provided as an adhesive cleaning cloth including the pressure-sensitive adhesive composition 33 .

The friction improver is preferably included in an amount of 5 to 20 parts by weight based on 100 parts by weight of the acrylic adhesive. If the content of the friction improving agent is less than the above-mentioned range compared to the acrylic pressure-sensitive adhesive, there may be a limit to the effect of reducing the frictional force, and if it exceeds the above-mentioned range, it is rather eluted from the pressure-sensitive adhesive composition penetration space 32 The cleaning surface may be contaminated when the adhesive sheet is used.

The friction improver according to the present embodiment specifically includes lauric acid and polyethylene glycol or polypropylene glycol having a number average molecular weight of 300 to 3,000. That is, the friction improving agent of this embodiment may be a mixture of lauric acid and polyethylene glycol or a mixture of lauric acid and polypropylene glycol, and in terms of production cost, a mixture of lauric acid and polyethylene glycol may be preferred. At this time, in this embodiment, the number average molecular weight may mean a value measured by the terminal group quantification method, the overall utilization measurement method, or the osmotic pressure method, and when the number average molecular weight is a single molecule that does not fall within the above-mentioned range, the reactivity is high and the human body It can be easily absorbed into the body, so there may be concerns about the possibility of harm to the human body.

Polyethylene glycol or polypropylene glycol is preferably mixed in a ratio of 50 to 85 parts by weight based on 100 parts by weight of lauric acid, which is easily soluble in water and water-soluble because lauric acid and polyhydric alcohol are mixed in the above range to form a gel state. It is because it is excellent also in compatibility with an acrylic adhesive. If the ratio of lauric acid exceeds the range, it is difficult to dissolve in water because the state is solid after mixing, and when the ratio of polyethylene glycol or polypropylene glycol exceeds the above range, phase separation from the water-soluble acrylic adhesive occurs It may be difficult to form the adhesive composition 33 . More preferably, the lauric acid is mixed with polyethylene glycol or polypropylene glycol in a weight ratio of 65 (ratio of lauric acid):35 to 55:45.

On the other hand, the cleaning pusher 10 includes a Velcro attachment part 12a to which the cleaning fabric 20 is attached, and the cleaning fabric 20 according to this embodiment has a surface area of 2 to 4 m ² /m ^{2 per unit area.} It is provided with a microfiber fabric in which wrinkles 21 are formed.

Therefore, the microfiber fabric having the wrinkles 21 is attached to the cleaning pusher 10 , and the adhesive composition 33 is provided so as to be able to be adhered to the microfiber fabric in which the wrinkles 21 are formed. As described above, the surface area per unit area of the microfiber fabric on which the wrinkles 21 are formed is 2 to 4 m ² /m ² , thereby increasing the adhesion efficiency of the patchwork composition according to the present embodiment. In addition, by attaching the microfiber fabric with the folds 21 to the lower end of the cleaning pusher 10 having the Velcro attachment part 12a, there is an effect of facilitating the attachment and detachment of the microfiber fabric with the folds 21 .

In other words, the Velcro attachment portion 12a included in the cleaning pusher 10 is attached to the microfiber fabric with the wrinkles 21 formed therein. In addition, the pressure-sensitive adhesive composition 33 according to the present embodiment is prepared with microfibers, and is adhered to the cleaning fabric 20 having an increased adhesion area due to the formation of wrinkles 21 . That is, the adhesive composition 33 is formed of the composition as described above, and the cleaning fabric 20 is provided as a microfiber fabric with wrinkles 21 so that the ^{surface area per unit area is 2 to 4 m 2} /m ^{2 The adhesiveness is increased.} . It does not stick to the cleaning area and is stably adhered to the cleaning fabric 20, thereby improving cleaning efficiency.

In addition, the adhesive composition 33 is provided to be adhered to the cleaning fabric 20 so that the adhesive cleaning pad 30 according to the present embodiment can be adhered to the cleaning fabric 20 without being adhered to the cleaning area, so that the adhesive composition (33) does not cause re-contamination of the cleaning area, and the adhesive cleaning pad 30 falls off from the cleaning fabric 20 during cleaning, thereby reducing the cleaning efficiency.

On the other hand, the biodegradable non-woven fabric part 31 forms a web by staple fibers having a fineness of 3 to 50 Denier, but the adhesive composition 33 can penetrate when impregnated with the adhesive composition 33 . The pressure-sensitive adhesive composition penetration space 32 is formed to be formed, and the pressure-sensitive adhesive composition is impregnated with the pressure-sensitive adhesive composition 33 and dried to be provided integrally with the pressure-sensitive adhesive composition 33, and the porosity is 40 to 95% by volume. .

In addition, according to the present embodiment, the biodegradable nonwoven part 31 includes a biodegradable material 31a and a synthetic resin material 31b.

And, as described above, the biodegradable material 31a and the synthetic resin material 31b are staple fibers having a fineness of 3 to 50 Denier, and a web is formed by a needle punching method. .

The biodegradable material 31a is, cellulose (Cellulose), chitin (Chitin), starch (Starch), PHA (Poly Hydroxyl Alkanoate), PHBV (Poly Hydroxy Butyrate Valerate), PVA (Poly Vinyl Alcohol), PGA (Poly Glycolic Acid) ), PBS(Poly Butylene Succinate), PBSA(Poly Butyleneadipate-co-Butylene Succinate), PBAT(Poly Butylene Adipate Terephthalate), PCL(Poly Capro Lactone), Polyester-amide(PolyEster-Amide), PLA(Poly latic acid) ) and polyester-urethane (PolyEster-Urethane).

The synthetic resin material 31b is, PVC (polyvinyl chloride), PEG (polyethylene glycol), EVA (ethylene vinyl acetate), TPE (thermo plastic elastomer), TPU (thermoplastic polyurethane), TPS (thermo plastic starch), ENR (epoxidized natural rubber) ), ionomer, SBS (styrene butadiene styren), NBR (nitrilebutadiene rubber), SEBS (styrene ethylene butylenes styrene), acrylate, ABS (acrylonitrile butadiene styrene), modified polyolefin ( polyolefin modified with compatibilizer), PU (polyurethane), polyamide (Polyamide), and polyester (PET) is provided as a component of at least one.

In addition, the weight ratio of the biodegradable material 31a and the synthetic resin material 31b of the biodegradable nonwoven fabric part 31 may be 97:3 to 59:41.

The results of the performance test according to the weight ratio of the biodegradable material 31a and the synthetic resin material 31b of the biodegradable nonwoven fabric part 31 are shown in the table of [Experiment 1] below. In [Experiment 1], the biodegradable material 31a was prepared with PLA (Poly lactic acid), and the synthetic resin was prepared with PET (Polyester). PLA (Poly Lactic Acid) is an eco-friendly resin made from raw materials extracted from corn starch. It does not detect harmful substances such as environmental hormones or heavy metals. It has the same characteristics as general plastics during use, but 100% by microorganisms when discarded. It is a biodegradable material. In other words, PLA (Poly Lactic Acid) is completely decomposed into water and carbon dioxide within 2 to 3 years with reduced strength when buried in soil. Even when submerged in seawater, it shows similar decomposition results as when buried in soil.

On the other hand, there are similarities in the physical properties of PLA (Poly lactic acid) and PET (Polyester), and a comparison of the physical properties is shown in [Table 1] below.

[Experiment 1]

[Table 1]

As detailed in [Table 1] above, there is a similarity in the physical properties of PLA (Poly lactic acid) and PET (Polyester). However, as detailed in [Experiment 1], the weight ratio of PLA (Poly lactic acid) and PET (Polyester) should be prepared in a range of 97:3 to 59:41, preferably 95:5 to 60:40, to be used as a cleaning pad. possible. In particular, when the weight ratio of PLA (Poly lactic acid) to the weight ratio of PLA (Poly lactic acid) and PET (Polyester) goes down to 50 percent or less, it is difficult to see it as a biodegradable product in general in view of the bioplastic standard of each country.

In addition, when the weight ratio of PLA (Poly lactic acid) to PET (Polyester) is 97: 3, preferably 95: 5 or more, mechanical strength is reduced. In particular, since the modulus of elasticity of the staple fiber is very low compared to the modulus of the staple fiber of PET (Polyester), squeeze the nonwoven fabric made of only PLA (Poly lactic acid). In this case, the thickness of the PLA (Poly lactic acid) nonwoven fabric becomes thin, the porosity is lowered because the staple fibers of the nonwoven fabric are too dense, and the adhesive composition 33 is agglomerated after impregnating the nonwoven fabric into the adhesive composition 33 After squeezing, the initial thickness of the non-woven fabric cannot be recovered and there is a problem of compression. In addition, even if the adhesive composition 33 permeates between the nonwoven fabrics by impregnating the nonwoven fabric composed of PLA (Poly lactic acid) only into the adhesive composition 33, the adhesive composition 33 does not separate from the nonwoven fabric at all during squeezing and remains in the nonwoven fabric. During the drying operation, there is a problem that the non-woven fabric is not sufficiently dried to the inside. In addition, if the temperature is raised to sufficiently dry the nonwoven fabric composed only of PLA (Poly Lactic Acid), there is a problem that PLA (Poly Lactic Acid) is melted.

In the biodegradable nonwoven part 31 according to this embodiment, the weight ratio of PLA (Poly lactic acid) and PET (Polyester) is 97: 3 to 59: 41, preferably 95: 5 to 60: 40. was solved.

That is, as in [Experiment 1] above, PET (Polyester) staple fibers are mixed in 5% to 40% to form an adhesive composition penetration space 32 into which the adhesive composition 33 can penetrate after impregnation Structurally, the adhesive composition 33 easily escapes during squeezing without reducing the maximum adhesive absorption rate, allowing proper drying, and PET (Polyester) staple fibers with high elastic modulus are mixed to perform squeezing. The biodegradable non-woven fabric part 31 was provided to recover the initial thickness without being compressed.

On the other hand, the table of [Experiment 2] below shows the results of a drying experiment of a nonwoven fabric composed of only one selected from poly lactic acid (PLA) and polyester (PET).

[Experiment 2]

In addition, the table of [Experiment 3] below shows the results of the impregnation test of a nonwoven fabric composed of only one selected from poly lactic acid (PLA) and polyester (PET).

[Experiment 3]

The melting point of PLA (Poly lactic acid) is 175 ℃, and the melting point of general PET (Polyester) is 265 ℃. Therefore, for complete drying, if the temperature is raised as in the drying of PET (Polyester), the surface of PLA (Poly lactic acid) may melt and the roughness of the surface may be increased. If the temperature is raised excessively, PLA (Poly lactic acid) will be completely There is a problem with melting.

In addition, as in the result of [Experiment 3] above, the PLA (Poly lactic acid) 100% nonwoven fabric is more than doubled when impregnated as compared to PET (Polyester) 100% nonwoven fabric, which is a conventional nonwoven fabric for adhesive sheets (33) After squeezing, the adhesive composition 33 remained 1.5 times higher than that of 100% PET (Polyester) nonwoven fabric.

When squeezing a nonwoven fabric made of 100% PLA (Poly lactic acid), the modulus of elasticity (Modulus) of PLA (Poly lactic acid) staple fiber is the same as the modulus of elasticity (Modulus) of PET (Polyester) staple fiber. Since it is very low in comparison, the thickness of the nonwoven fabric becomes thin when the nonwoven fabric is composed only of PLA (Poly lactic acid) staple fibers, and the adhesion composition after impregnation because the spaces between the PLA (Poly lactic acid) staple fibers are too dense. (33) is agglomerated, and even after squeezing, the initial thickness cannot be recovered and the pressure-sensitive adhesive composition 33 impregnated in a compressed state does not escape and remains in the nonwoven fabric.

Therefore, the nonwoven fabric in the compressed state having excessively absorbed the pressure-sensitive adhesive composition 33 is difficult to sufficiently dry to the inside during the drying operation, and there is a productive problem in that a high temperature and a lot of drying time are required.

In addition, if the temperature is increased for sufficient drying operation, the surface of the PLA (Poly lactic acid) staple fiber is melted, or the temperature is lowered in consideration of the characteristics of the PLA (Poly lactic acid) staple fiber. If it is too low, it is important to find an appropriate drying temperature and time because it is difficult to completely dry the pressure-sensitive adhesive composition 33 excessively permeated inside the nonwoven fabric.

Therefore, reflecting the results of [Experiment 2] and [Experiment 3] above, the weight ratio of PLA (Poly lactic acid) and PET (Polyester) is 97: 3 to 59: 41, preferably 95: 5 to 60: 40. The biodegradable nonwoven fabric 31 is dried at a temperature of 100 ˚C to 150˚C for 30 seconds to 60 seconds, preferably at a temperature of 110 ˚C to 140˚C for 30 seconds to 60 seconds to dry the biodegradable nonwoven fabric The durability of the part 31 was improved, and the drying efficiency of the biodegradable nonwoven fabric part 31 was increased.

On the other hand, in the biodegradable nonwoven part 31 according to the present embodiment, the biodegradable material 31a is impregnated in the pressure-sensitive adhesive composition 33, and the weight ratio of the biodegradable material 31a and the pressure-sensitive adhesive composition 33 is 10: 243. to 10:46 is provided. Therefore, while increasing the drying efficiency, there is an effect that the cleaning efficiency is improved by increasing the adhesion.

The thickness of the biodegradable nonwoven part 31 according to the present embodiment is provided in a range of 2.5 mm to 3.5 mm to maximize cleaning efficiency.

[Experiment 4] below is the experimental result of the correlation between the thickness of the cleaning cloth and the dust cleaning power according to the weight ratio of PLA (Poly lactic acid) and PET (Polyester).

At this time, there was a problem in that the nonwoven fabric prepared with 100% PLA (Poly Lactic Acid) was formed to a thickness of 2 mm or less during the drying step after impregnation.

Example 1 is a nonwoven fabric prepared of 100% PLA (Poly lactic acid), and in Example 2, a weight ratio of PLA (Poly lactic acid) to PET (Polyester) in the biodegradable nonwoven part 31 is 95: 5, In Example 3, the weight ratio of PLA (Poly lactic acid) to PET (Polyester) in the biodegradable nonwoven part 31 was 60:40, and Comparative Example 1 is a nonwoven fabric made of 100% PET (Polyester).

[The method of measuring dust cleaning power in Experiment 4 is as follows.

(1) Adhesion (dust adhesion rate, %) measurement: After evenly spraying 2g of the adherend (Sand, particle size 300~600㎛) on a vinyl floor of a certain area (45cm × 180cm), prepare according to each condition The Vinyl floor on which the adherend was sprayed was cleaned using the adhesive sheet as a test specimen (120 × 470 mm). The pressure (force) applied during cleaning was the same in all experiments, and after cleaning was completed, the specimen was measured by comparing it with the weight measured before cleaning, and the adhesion rate (dust adhesion rate) of the adherend was calculated by Equation 1 as follows. did.

Equation 1) Adhesion rate (%) = [(W 3 -W 2 )/W 1 ] × 100

At this time, in Equation 1, W 1 = the total weight of the adherend spread over a certain area (2 g), W 2 = the weight of the specimen before the experiment (cleaning), and W 3 = the weight of the specimen after the test (cleaning).

After examining the 10 subjects with blindfolded eyes and checking the touch sensation of the surface of Comparative Example 1, the improvement of the touch sensation of the three surfaces of Examples 1 to 3 was confirmed, and there was individual difference, so a majority of opinions were selected and prepared.

Measurement of the thickness of the cleaning cloth: KS M ISO 17186:2013: Method A A total of 5 measurements were performed by a live microscope measurement method, and the average value was recorded.

[Experiment 4]

As shown in the results of [Experiment 4], the nonwoven fabric prepared with 100% PLA (Poly lactic acid) of Example 1 was impregnated with the pressure-sensitive adhesive composition 33 and then dried to a thickness of 2 mm or less, and was compressed by strong adhesive force. The cleaning operation was impossible because the non-woven fabric was attached to the bottom surface (cleaning surface), and there is a problem in that there is no empty space for the dust of the non-woven fabric to adhere, so there is a problem that the cleaning power is lowered. In addition, Comparative Example 1 is not biodegradable, so there is a problem of environmental pollution.

Hereinafter, a method of manufacturing an adhesive cleaning pad according to the present embodiment having such a configuration will be described with reference to FIG. 5 .

5 is a flowchart of a method for manufacturing an adhesive cleaning pad according to an embodiment of the present invention.

According to the present embodiment, the adhesive cleaning pad manufacturing method includes a pressure-sensitive adhesive composition preparing step (S100), a web forming step (S200), a web impregnating step (S300), a web squeezing step (S400), and an impregnated web A drying step (S500) is included.

The pressure-sensitive adhesive composition preparation step (S100), based on 100 parts by weight of the water-soluble acrylic pressure-sensitive adhesive, polypropylene glycol and 65 (ratio of lauric acid): lauric acid and number average contained in a weight ratio of 35 to 55:45 This is a step of preparing the pressure-sensitive adhesive composition 33 comprising 5 to 20 parts by weight of a friction improver mixed with polypropylene glycol having a molecular weight of 2000 to 3000.

The web forming step (S200) is a step of forming a web by staple fibers having a fineness of 3 to 50 Denier, and the web is an adhesive composition penetration space ( 32) and includes a biodegradable nonwoven part 31 provided integrally with the pressure-sensitive adhesive composition 33 through a web impregnation step and a web drying step.

In addition, in the web forming step (S200), the fibers of the biodegradable nonwoven part 31 are prepared by needle punching. By providing the web forming step (S200) in a needle punching method, the pressure-sensitive adhesive composition penetrating space 32 can be formed so that the pressure-sensitive adhesive composition 33 can penetrate efficiently. And in the web forming step (S200) By forming a low-weight web by a dry method, the biodegradable nonwoven fabric 31 was mechanically separated and laminated in one direction to properly maintain strength and elongation, and to maintain uniformity by minimizing overlapping.

The web impregnation step (S300) is a step of impregnating the web in the pressure-sensitive adhesive composition (33). The web is impregnated with the pressure-sensitive adhesive composition 33 to penetrate the pressure-sensitive adhesive composition 33 into the pressure-sensitive adhesive composition penetration space 32 .

After the web impregnation step (S300), a web squeezing step (S400) of squeezing the web is further included, and the web squeezing step (S400) is squeezed so that an appropriate adhesive composition 33 for drying the impregnated web remains. ) step.

The impregnated web drying step (S500) is a step of squeezing the impregnated web, which is a web impregnated with the adhesive composition 33, and then drying the impregnated web.

As described above, the impregnated web drying step (S500) requires an appropriate drying temperature and time, and reflecting the results of [Experiment 2] and [Experiment 3] above, PLA (Poly lactic acid) and PET (Polyester) A weight ratio of 97: 3 to 59: 41, preferably 95: 5 to 60: 40, the biodegradable non-woven fabric 31 is dried at a temperature of 100 ° C to 150 ° C for 30 seconds to 60 seconds, Preferably, it is dried at a temperature of 110 °C to 140 °C for 30 seconds to 60 seconds to improve the durability of the biodegradable nonwoven fabric part 31 and to increase the drying efficiency of the biodegradable nonwoven fabric part 31 .

In this way, when the impregnated web drying step (S500) is passed, the biodegradable material 31a, the synthetic resin material 31b, and the adhesive composition 33 are integrally formed.

That is, according to the present embodiment having the structure and action as described above, it includes a biodegradable nonwoven fabric integrally formed with the pressure-sensitive adhesive composition provided to efficiently remove various foreign substances, while decomposing in an environmentally friendly manner and has excellent mechanical strength.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations are included in the claims of the present invention.

1: cleaning pusher set 10: cleaning pusher
20: cleaning fabric 30: adhesive cleaning pad
31: biodegradable non-woven fabric part 32: pressure-sensitive adhesive composition penetration space
33: adhesive composition

Claims (15)

Adhesive composition provided so as to be able to adhere to the bottom of the cleaning fabric attached to the cleaning pusher; and
A web is formed by staple fibers having a fineness of 3 to 50 Denier, but when impregnated with the pressure-sensitive adhesive composition, a penetration space for the pressure-sensitive adhesive composition is formed so that the pressure-sensitive adhesive composition can penetrate, and the pressure-sensitive adhesive composition is impregnated with the pressure-sensitive adhesive composition and a biodegradable nonwoven fabric provided integrally with the pressure-sensitive adhesive composition by drying,
The biodegradable nonwoven fabric includes a biodegradable material and a synthetic resin material,
The weight ratio of the biodegradable material and the synthetic resin material is 97: 3 to 59: 41 of the adhesive cleaning pad. According to claim 1,
The porosity (porosity) of the biodegradable nonwoven part is an adhesive cleaning pad, characterized in that 40 to 95% by volume. According to claim 1,
The biodegradable material is, cellulose (Cellulose), chitin (Chitin), starch (Starch), PHA (Poly Hydroxyl Alkanoate), PHBV (Poly Hydroxy Butyrate Valerate), PVA (Poly Vinyl Alcohol), PGA (Poly Glycolic Acid), PBS(Poly Butylene Succinate), PBSA(Poly Butyleneadipate-co-Butylene Succinate), PBAT(Poly Butylene Adipate Terephthalate), PCL(Poly Capro Lactone), Polyester-amide(PolyEster-Amide), PLA(Poly latic acid) and Adhesive cleaning pad, characterized in that provided with at least one component of polyester-urethane (PolyEster-Urethane). According to claim 1,
The synthetic resin material is PVC (polyvinyl chloride), PEG (polyethylene glycol), EVA (ethylene vinyl acetate), TPE (thermo plastic elastomer), TPU (thermoplastic polyurethane), TPS (thermo plastic starch), ENR (epoxidized natural rubber), Ionomer, SBS (styrene butadiene styren), NBR (nitrilebutadiene rubber), SEBS (styrene ethylene butylenes styrene), acrylate, ABS (acrylonitrile butadiene styrene), polyolefin modified containing compatibilizer with compatibilizer), PU (polyurethane), polyamide (Polyamide), and polyester (PET) adhesive cleaning pad, characterized in that provided with at least one component. According to claim 1,
The biodegradable non-woven fabric has a thickness of 2.5 mm to 3.5 mm. According to claim 1,
After the biodegradable material is impregnated in the pressure-sensitive adhesive composition, the weight ratio of the biodegradable material and the pressure-sensitive adhesive composition is 10: 243 to 10: 46. According to claim 1,
The cleaning pusher,
a support having one end of the head; and
A head having a Velcro attachment part to which the cleaning fabric is attached to one end and a hinge coupling part hinged to the head end part at the other end and provided to be spaced apart from the hinge coupling part so as to be able to fit the cleaning fabric into a fitting part. comprising a plate,
The cleaning fabric is an adhesive cleaning pad, characterized in that it is a microfiber fabric wrinkled so that the surface area per unit area is 2 to 4m ² /m ^{2 .} According to claim 1,
The adhesive composition,
Based on 100 parts by weight of the water-soluble acrylic adhesive, polypropylene glycol and 65 (ratio of lauric acid): lauric acid contained in a weight ratio of 35 to 55:45; and
A pressure-sensitive adhesive cleaning pad comprising 5 to 20 parts by weight of a friction improver mixed with polypropylene glycol having a number average molecular weight of 2000 to 3000. Based on 100 parts by weight of the water-soluble acrylic pressure-sensitive adhesive, polypropylene glycol and 65 (ratio of lauric acid): Lauric acid contained in a weight ratio of 35 to 55:45 and polypropylene glycol having a number average molecular weight of 2000 to 3000 Preparing a pressure-sensitive adhesive composition comprising 5 to 20 parts by weight of a mixed friction improver;
A web forming step of forming a web (Web) by staple fibers having a fineness of 3 to 50 Denier;
a web impregnation step of impregnating the web in the adhesive composition; and
Including a; impregnated web drying step of drying the impregnated web, which is a web impregnated in the pressure-sensitive adhesive composition,
The web is
and a biodegradable nonwoven fabric provided integrally with the pressure-sensitive adhesive composition through the web impregnating step and the web drying step to form a pressure-sensitive adhesive composition penetration space provided so that the pressure-sensitive adhesive composition is permeable;
The biodegradable nonwoven fabric includes a biodegradable material and a synthetic resin material,
The weight ratio of the biodegradable material and the synthetic resin material is 97: 3 to 59: 41. The method for manufacturing an adhesive cleaning pad according to any one of claims 1 to 8, characterized in that. 10. The method of claim 9,
The impregnated web drying step is a method of manufacturing an adhesive cleaning pad, characterized in that the drying for 30 seconds to 60 seconds at a temperature of 100 ˚C to 150 ˚C. 10. The method of claim 9,
The porosity (porosity) of the biodegradable nonwoven part is a method of manufacturing an adhesive cleaning pad, characterized in that 40 to 95% by volume. 10. The method of claim 9,
The biodegradable material is, cellulose (Cellulose), chitin (Chitin), starch (Starch), PHA (Poly Hydroxyl Alkanoate), PHBV (Poly Hydroxy Butyrate Valerate), PVA (Poly Vinyl Alcohol), PGA (Poly Glycolic Acid), PBS(Poly Butylene Succinate), PBSA(Poly Butyleneadipate-co-Butylene Succinate), PBAT(Poly Butylene Adipate Terephthalate), PCL(Poly Capro Lactone), Polyester-amide (PolyEster-Amide) and Polyester-urethane (PolyEster- Urethane), a method of manufacturing an adhesive cleaning pad, characterized in that it is prepared as at least one component. 10. The method of claim 9,
The synthetic resin material is PVC (polyvinyl chloride), PEG (polyethylene glycol), EVA (ethylene vinyl acetate), TPE (thermo plastic elastomer), TPU (thermoplastic polyurethane), TPS (thermo plastic starch), ENR (epoxidized natural rubber), Ionomer, SBS (styrene butadiene styren), NBR (nitrilebutadiene rubber), SEBS (styrene ethylene butylenes styrene), acrylate, ABS (acrylonitrile butadiene styrene), polyolefin modified containing compatibilizer with compatibilizer), PU (polyurethane), polyamide (Polyamide) and polyester (PET) manufacturing method of an adhesive cleaning pad, characterized in that provided with at least one component. 10. The method of claim 9,
The thickness of the biodegradable non-woven fabric part is a method of manufacturing an adhesive cleaning pad, characterized in that 2.5 mm to 3.5 mm. 10. The method of claim 9,
After the biodegradable material is impregnated into the pressure-sensitive adhesive composition, the weight ratio of the biodegradable material and the pressure-sensitive adhesive composition is 10: 243 to 10: 46.

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