KR20040066635A - Deodorization film for diaper for first inning - Google Patents

Abstract

PURPOSE: A deodorizing film for a disposable diaper is provided to eliminate an offensive odor occurring by the used diaper as well as to give an aromatic effect, with no need of the change of facility and process in production line. CONSTITUTION: The deodorizing film for a disposable diaper is prepared by applying at least one coating agent selected from a fragrance coating agent(10) and a deodorant coating agent(20) on a plastic film(100). The fragrance coating agent is prepared by incorporating a microcapsulated or uncapsulated fragrance into a water- or a fat-soluble coating solution. The deodorant coating agent is prepared by incorporating a deodorant into a water- or a fat-soluble coating solution. The plastic film(100) is one selected from the group consisting of an air-permeable film, an air-impermeable film, an apertured film, a water-proofing film, a water-proofing membrane and a non-woven laminated film used in a disposable diaper for baby, adult and animal.

Description

Deodorizing Film for Disposable Diapers {DEODORIZATION FILM FOR DIAPER FOR FIRST INNING}

The present invention relates to a deodorizing film of a disposable diaper.

As disposable diapers, baby diapers and adult diapers are used, and furthermore, animal diapers are sold. It is necessary to deodorize the smell of disposable diapers for the purpose of the product, but the diaper which adds a smell repellent function or adds a deodorizing function to the diaper has not been put to practical use. In Korean Patent Publication No. 2000-69455, when a release paper of an adhesive layer for fixing to clothing is peeled off, a technique is known in which the microcapsule fragrance is opened to make a smell, but this technique is a diaper that does not use the release paper of the adhesive layer. In addition, the technology of using release paper in the field of disposable diaper products was not wasteful and economically feasible, and could not be practical as a non-environmentally friendly technology. As a odor deodorization technology, a technique of inserting sesame charcoal powder or far-infrared radiation layer into the absorbent layer is disclosed. However, such a technique is also unsuitable for production in an existing facility because it requires an additional process for manufacturing disposable diapers.

Looking at the waterproof membrane for a conventional disposable diaper to obtain a polypropylene or polyethylene nonwoven thermal lamination diaper film obtained by co-extracting an adhesive resin on one surface of a conventional breathable or non-breathable diaper film (Patent No. 184735) Nonwoven laminated film for diaper which laminated nonwoven fabric to; In extrusion lamination of a polyolefin-based film containing polyethylene to a nonwoven fabric, it is molded into a polymer film having a melting point of less than 250 ° C., and a polymer film and a nonwoven fabric are simultaneously supplied between a cooling lamination roll and a compression rubber roll to be bonded according to a lamination pattern. Lamination lamination (Patent Publication No. 2002-0085022); A breathable film in which a nonwoven fabric manufactured by inexpensive manufacturing by injecting a nonwoven fabric in a molten state of a film while extruded a film with a resin for manufacturing a breathable film and then locally expanding a film in which a nonwoven fabric is laminated (Patent Publication No. 2002-0083734 Ho), etc. Disposable diaper waterproof membrane as described above has been obtained the effect of improving the texture and texture of the skin contact surface, such waterproof membrane or diaper perforated films lacked the odor treatment measures given when used as a disposable diaper.

The present invention is to provide a deodorizing film of a disposable diaper with a odor deodorizing function or a smell-smelling function for odor masking to the waterproof membrane and perforated film for disposable diapers. The present invention is to provide a deodorizing film of a disposable diaper having a deodorizing coating layer on one or both sides of the plastic film. The present invention is to provide a deodorizing film of a disposable diaper having a deodorizing power by providing a deodorizing coating layer on a part or all of the non-permeable film, the breathable film and the perforated film. The present invention is to provide a deodorizing film of a disposable diaper provided with a deodorizing function by providing a deodorizing coating layer and a deodorizing coating layer on one surface of the plastic film. The present invention is to provide a deodorizing film of a disposable diaper that allows a conventional diaper producer to give a diaper deodorizing function without changing the equipment or process of the diaper manufacturing line.

1 is a cross-sectional view of the waterproof membrane and the perforated film of the disposable diaper to which the present invention is applied

2 is a cross-sectional view of the deodorizing waterproof membrane of the present invention disposable diaper

3 is a plan view of the present invention deodorant coating

4 is a view illustrating an example coating pattern in which a fragrance coating layer or a deodorizing coating layer is formed on a part of a breathable plastic film

<Description of Major Reference Drawings>

10 is an odor coating layer, 20 is a deodorant coating layer, 30 is an adhesive layer mixed with a fragrance or deodorant, 100 is a plastic film, 200 is a nonwoven fabric, 300 is an adhesive layer

The present invention is a disposable diaper, disposable adult diaper, disposable animal diaper breathable film, non-breathable film, perforated film, waterproof film, waterproof film, non-woven laminated plastic film used for any one of the plastic film for disposable diapers It is a deodorizing film of a disposable diaper manufactured by coating at least one of a fragrance coating agent or a deodorant coating agent on one side or both sides of the film or on both sides. The deodorizing function of the present invention was achieved by applying the aromatic coating layer or the deodorizing coating layer to the plastic film. The plastic film used in the disposable diaper includes a waterproof film and a perforated film. As the waterproof membrane, a breathable film waterproof membrane, a non-breathable film waterproof membrane, a waterproof membrane laminated with a breathable film and a nonwoven fabric, and a waterproof membrane laminated with a non-breathable film and a nonwoven fabric are used. As a perforated film, the film which perforated a plastic film, and the perforated film which laminated | stacked a plastic film and a nonwoven fabric are used. In the present invention, the diaper film includes the above-mentioned diaper waterproof film and a perforated film. In addition, among the materials of the diaper, a good material to give the aromatic coating layer and the deodorizing coating layer is a plastic film. In this, the present invention is characterized by forming a coating layer on the plastic film. In the present invention, when the fragrance coating layer or the deodorizing coating layer is formed on the breathable film waterproof membrane, a part of the film should be coated for breathability preservation. In the case of the perforated film, the entire upper and lower surfaces may be coated as shown in FIG. However, it is preferable to coat before drilling. Coating capacity of the present invention can obtain practicality within 0.1 ~ 40g / ㎡.

The waterproof membrane and the perforated film for disposable diapers to which the deodorizing function of the present invention is applied are cited in FIG. 1. FIG. 1A is a cross-sectional view of a waterproof membrane in which a nonwoven fabric 200 is laminated on a plastic film 101. FIG. 1B is a cross-sectional view of a waterproof membrane in which a nonwoven fabric 200 is laminated on a breathable plastic film 102. 1C is a cross-sectional view of the waterproof film to which the plastic film 101 and the nonwoven fabric 200 are attached via the adhesive layer 300. 1D illustrates a hole 104 perforated in the composite to which the plastic film 103 and the nonwoven fabric 200 are bonded. In the present invention, the plastic film 101, the breathable plastic film 102, the plastic film 100 and the non-woven fabric 200, including the plastic film 103 punched through the hole, one of the laminated body It is a deodorizing plastic film for disposable diapers manufactured by coating at least one of a fragrance coating layer and a deodorizing coating layer on a part or all of the nonwoven fabric adhesive surface and its back surface of the plastic film 100 as elements.

Figure 2 shows a combination of coating the at least one of the plastic film 100 and the fragrance coating layer (1) or deodorant coating layer 20 of the laminated body. In FIG. 2, the nonwoven fabric 200 is separated from the film 100 for convenience. In FIG. 2 (A), one of the fragrance coating layer 10 or the deodorizing coating layer 20 is coated on the back surface of the plastic film 100 (if the nonwoven fabric is not adhered thereto). Figure 2 (A) is a preferred coating operation of the lamination is coated by installing a gravure coating roll in the in-line process on the lamination line of the nonwoven fabric and plastic film. In FIG. 2 (B), one of the fragrance coating layer 10 or the deodorizing coating layer 20 is coated on the inner surface of the plastic film 100 (non-woven adhesive surface, which is the same below). Fig. 2 (B) is a preferred coating operation of the laminated body after the deodorizing coating on the plastic film before the non-woven fabric and the plastic film is laminated. In FIG. 2 (C), one of the fragrance coating layer 10 or the deodorizing coating layer 20 is coated on the inner surface of the plastic film, and one of the fragrance coating layer 10 or the deodorizing coating layer 20 is also coated on the outer surface. Fig. 2 (C) is a preferred coating operation is to coat on both sides of the plastic film before lamination of the nonwoven fabric and the plastic film and then laminated. In Figure 2 (D) to prepare a deodorant adhesive mixed with one of the fragrance or deodorant as an adhesive layer for bonding the plastic film 100 and the nonwoven fabric 200, the deodorizing adhesive layer 30 to which the nonwoven fabric 200 is bonded as a deodorant adhesive ). The preferred manufacturing process of the deodorant perforated nonwoven fabric is first to prepare a deodorized nonwoven fabric, and to install a perforator in the deodorant nonwoven fabric manufacturing line to perforate at a porosity of about 20% of the film area. In FIG. 2E, the deodorizing coating layer 20 is formed on one side and the fragrance coating layer 10 is formed on the other side before the plastic film 100 is drilled to have deodorizing and deodorizing functions on all surfaces. The present invention includes a diaper film in which the nonwoven fabric is not laminated to the plastic film 100 as shown in FIG.

Figure 3 shows an example of a pattern of deodorant coating. In FIG. 3 (A), the deodorizing coating layer, which is either the fragrance coating layer 10 or the deodorizing coating layer 20, was formed on the front surface of the film. If the plastic film which is one element of the waterproof film for disposable diapers is a breathable film, the coating of the fragrance coating layer or the deodorizing coating layer should be applied to a part of the breathable plastic film to preserve the breathability of the film. This partial coating area is 3 to 90% of the film area, preferably 30 to 60%. In FIG. 3 (B), the deodorizing coating layer, which is either the fragrance coating layer 10 or the deodorizing coating layer 20, is partially coated on the breathable film 102. In Fig. 3B, the areas given the coating layers 10 and 20 lose the breathability. The partial coating pattern of FIG. 3B may use various patterns such as a band pattern, a line pattern, and a dot pattern as illustrated. The partial coating of Fig. 3B may be applied to a non-breathable film or a perforated film. The film of FIG. 3C shows an embodiment in which a deodorizing coating layer is provided in the form of a pattern coating on the plastic film 100 including a non-breathable film, a breathable film, and a perforated film. The coating pattern of FIG. 3C may use various patterns such as band patterns, line patterns, and dot patterns. When the deodorizing coating pattern and the deodorizing coating pattern is included on one side of the film, the coating layers must be formed by jumping from each other so that the functions of the two coating layers are not neutralized.

4 shows an embodiment of a partial coating. Gravure roll coating is recommended as a preferred compositional means of the coating layer. In Figure 4, the coating layer has a capacity of 0.1-50 g / m 2. In the case of including both coating layers, the area ratio of the deodorizing coating layer 30 is 10 to 90% compared to the coating area of the fragrance coating layer 20. Preferably it is 30-50%. FIG. 4 (A) shows an embodiment in which the fragrance coating layer 10 is pattern-coated in a parallel line pattern on 50% of one surface of the breathable plastic film 102. FIG. FIG. 4B is an example in which the deodorizing coating layer 20 is coated with 25% of the area of 30% of one surface of the breathable plastic film 102. Figure 4 (C) is an embodiment in which the deodorizing coating layer 20 to 50% area, the fragrance coating layer to 25% area on one surface 75% area of the breathable plastic film 102. 4D illustrates an example in which a fragrance coating layer 10 and a deodorizing coating layer 20 are respectively coated with a square line pattern having a 5% area on one surface 10% of the breathable plastic film 102.

1. Preparation of coating liquid

The fragrance coating and the deodorant coating for the present invention are prepared separately. The coating liquid of the present invention is a polymer in which a binder polymer adhered to a plastic film is dispersed in a solvent or polymerized in a liquid phase. The present invention is to prepare a fragrance coating agent by mixing the perfume in the coating solution, or to prepare a deodorant coating agent by mixing the deodorant or deodorant in the coating solution. In the case of the fragrance coating agent, an inorganic material may be further included as a fragrance for long-lasting fragrance.

1) Coating solution including binder bonded to plastic film

There are many binders that have adhesion to plastic films. Among them, economically inexpensive materials are water-soluble coatings such as acrylic emulsions, acrylic dispersions, polyester emulsions, polyester dispersions, copolymers containing monomers having polar groups, nitro cellulose, polyamides, phenols Resin and the like. As the fat-soluble binder polymer, copolymers containing solution polymers such as acrylic solutions, ethylene vinyl acetate copolymers, chlorinated rubbers, polyamides, nitro cellulose, natural rubbers, synthetic rubbers, and olefinic monomers are copolymerized with toluene and ethyl. Coating agents dissolved in acetate, methyl ethyl ketone and the like.

The binder is used in a state in which the polymer is dispersed in a liquid solvent, or polymerized in a liquid state and used in an emulsion or a solution state.

2) The fragrance as a fragrance is an unencapsulated fragrance or a microcapsule-coated encapsulated fragrance including a rose, lilac, acacia, herbal, lily, mint, and musk flavors. Inorganic materials having far-infrared radiation such as elvan, talc and biotite are included as a reinforcing agent.

3) As the deodorizing and deodorizing materials, inorganic materials having deodorizing function of elvan, biotite, talc and inorganic antibacterial agents, and materials having adsorption function such as zeolite, activated carbon, silica gel and silica are used.

4) The flavoring agent generally uses oil-absorbing inorganic materials for oily flavoring as a material to control the flavoring period by suppressing the amount of flavoring of perfume. Such oil-absorbing inorganic materials include elvan, silica, talc, barium sulfate, calcium carbonate, and mica. Among these materials, ganbanite, talc, biotite and the like which emit far infrared rays at the same time as the oil absorption function are preferable as the oil absorption material of the present invention. The flavoring agent is added to the coating liquid in a fragrance.

5) The coating liquid preparation of the present invention is a fragrance coating agent mixed with a perfume to the coating liquid containing a binder; A fragrance coating agent added by mixing a fragrance and a flavoring agent into the coating solution; Or to prepare a deodorant coating agent mixed with a deodorant or deodorant material in the coating solution.

6) In the fragrance coating agent or deodorant coating agent of the present invention by adding one or more far-infrared radiation inorganic materials including ganban stone, mica, talc, inorganic antibacterial agent, barium sulfate, jade powder, zeolite, activated carbon, silica, charcoal powder In addition to improving the skin affinity by allowing the far-infrared radiation from the coating layer.

The fragrance coating agent to which the acacia scent is added by the above method is coated on the plastic film for diaper, and the plastic film having the scent coating layer is cut to 30 cm on one side to produce a specimen, and the apparent acacia scent at a distance of 50 cm of the specimen. Could smell. This odor function is used as a part of the diaper to mask a significant amount of the diaper odor. Similarly, the deodorizing coating layer formed on the plastic film deodorizes a part of the diaper odor with its unique deodorizing power. In addition, the present invention by providing the smell of deodorizing function or smell masking function to the existing waterproof film and perforated film for disposable diapers, the existing diaper producer can produce a diaper without changing the equipment or process of the diaper manufacturing line will be.

Example 1:

150 parts by weight of a solvent (50% isopropyl alcohol, 50% water) in a waterproof film for diapers having a capacity of 25 g / m 2; 100 parts by weight of binder polyester aqueous solution; A fragrance coating agent prepared by mixing 5 parts by weight of acacia flavoring perfume was coated. The coating amount of the coating liquid was 25 g / m 2 before drying, and the coating agent coating capacity after drying the coating liquid was 0.8 g / m 2. The area ratio of the coating part to the film area was 100%. The fragrance coating film was able to determine a certain acacia fragrance with a smell at a distance of 30cm. The fragrance coating film of Example 1 is used as a normal diaper waterproof film. When the baby diaper is manufactured using the fragrance coating film of Example 1, the fragrance coating part when the diaper is worn wraps the odor generating factor, thereby maximizing the masking effect of the odor.

Example 2:

150 parts by weight of a solvent (50% isopropyl alcohol, 50% water) in a waterproof film for diapers having a capacity of 25 g / m 2; 100 parts by weight of binder polyester aqueous solution; Deodorant A deodorant coating comprising 25 parts by weight of elvan was coated. The coating capacity of the coating part after drying of the coating solution was 1.2 g / m 2; The area ratio of the coating part to the film area was 100%. The deodorizing film of Example 2 is usually used as a waterproof film of a diaper. When the baby diaper is manufactured using the deodorizing film of Example 2, the deodorizing coating unit covers the source of odor when the diaper is worn, thereby significantly increasing the odor absorbing effect.

Example 3:

150 parts by weight of a solvent (50% isopropyl alcohol, 50% water) in a breathable diaper waterproof membrane film having a capacity of 25 g / m 2; 100 parts by weight of binder polyester aqueous solution; A fragrance coating agent mixed with 5 parts by weight of a lilac flavor (manufacture borer) perfume; 150 parts by weight of a solvent (50% isopropyl alcohol, 50% water); 100 parts by weight of binder polyester aqueous solution; Deodorant A deodorant coating was prepared which was 25 parts by weight of elvan. The fragrance coating agent and the deodorant coating agent were coated by dividing the area on the cross-vane in the coating line of the film. The capacity of the coating layer after drying was 1 g / m 2. The area ratio of the coating part to the film area was 50%. When manufacturing the baby earrings with the breathable coating film of Example 3, the fragrance coating portion and the deodorizing coating portion when the diaper is worn to increase the odor masking effect and the masking effect at the same time.

Example 4:

150 parts by weight of a solvent (50% isopropyl alcohol, 50% water) in a 25 g / m 2 non-breathable film for diapers; 100 parts by weight of binder polyester aqueous solution; A fragrance coating agent containing 5 parts by weight of lilac fragrance (manufacturer's fragrance) was coated on 100% of the film before drilling. After drying, the coating part was 0.3 g / m 2. The odor perforated film of Example 4 is used as a material for a conventional diaper. If the diaper is manufactured by including the perforated film of Example 4, it is possible to reduce the smell by the smell masking action of the fragrance coating portion when the diaper is worn.

Example 5:

150 parts by weight of a solvent (50% isopropyl alcohol, 50% water) in a 25 g / m 2 non-breathable film for diapers; 100 parts by weight of binder polyester aqueous solution; A fragrance coating agent which is 5 parts by weight of a lilac flavor (manufacture borer) perfume; 150 parts by weight of a solvent (50% isopropyl alcohol, 50% water); 100 parts by weight of binder polyester aqueous solution; Deodorant A deodorant coating agent of 25 parts by weight of elvan was prepared. The fragrance coating agent and the deodorant coating agent were coated on the perforated film of the diaper by dividing the area with a cross band pattern. After drying, the coating was 1.6 g / m 2. The area ratio of the coating part to the film area was 80%. The odor perforated film of Example 5 is used as part of a conventional diaper. When manufacturing a diaper including the perforated film of Example 5, when the diaper is worn, the fragrance coating portion and the deodorizing coating portion surround the odor source, thereby simultaneously obtaining the masking effect and the deodorizing effect of the smell.

As described above, the present invention provides a deodorizing film for a disposable diaper which is provided with an odor deodorizing function or a smell-smelling function for odor masking on the waterproof membrane for perforated diaper and the perforated film, and specifically, the present invention is provided on one side or both sides of a plastic film. Providing a deodorizing film of a disposable diaper having a deodorizing coating layer; Providing a deodorizing film for deodorizing disposable diaper by providing a deodorizing coating layer on a part or all of the non-permeable film, the breathable film, and the perforated film; Providing a deodorizing film of a disposable diaper provided with a deodorizing function by providing a deodorizing coating layer and a deodorizing coating layer together on one surface of the plastic film; It is to provide a deodorizing film of disposable diapers that allow existing diaper producers to give a diaper deodorizing function without changing the equipment or process of the diaper manufacturing line.

Claims (7)

In the plastic film used as any one of a disposable baby diaper, a disposable adult diaper, a breathable film, a non-breathable film, a perforated film, a waterproof film, a waterproof film, and a nonwoven laminated film of a disposable animal diaper, one side of the plastic film for disposable diapers In addition, the deodorizing film of the disposable diaper manufactured by coating at least one of a fragrance coating agent or a deodorant coating agent on the front surface or a partial surface of both sides. The copolymer of claim 1, wherein the fragrance coating agent comprises an acrylic emulsion, an acrylic dispersion, a polyester emulsion, a polyester dispersion, a monomer having a polar group, and a copolymer copolymerized with nitro cellulose and polydispersed in water or alcohol. In a water-soluble coating solution selected from amides and waste resins; Unencapsulated fragrance, microcapsule-coated encapsulated fragrance, characterized in that it is a water-soluble fragrance coating prepared by mixing fragrance selected from fragrance including rose, lilac, acacia, herb, lily, mint, musk fragrance. Deodorizing film of disposable diapers. The fragrance coating agent according to claim 1, wherein the fragrance coating agent is an acrylic solution polymer dispersed in a fat-soluble solvent of toluene, ethyl acetate, methyl ethyl ketone, ethylene vinyl acetate copolymer, chlorinated rubber, polyamide, nitro cellulose, natural rubber, synthetic Preparing a fat-soluble coating liquid selected from copolymers including rubber and olefin monomers; It is a water-soluble fragrance coating agent prepared by mixing fragrances selected from among fragrances including rose, lilac, acacia, herb, lily, mint, and musk, which are not encapsulated in fat-soluble coating liquid or microcapsule coated. Deodorizing film of disposable diapers characterized in that. The deodorizing coating agent according to claim 1, wherein the deodorant coating agent is a water-soluble coating liquid selected from acrylic emulsions, acrylic dispersions, polyester emulsions, polyester dispersions, and wasteol resins dispersed in water or alcohol; Deodorizing film for disposable diapers characterized in that the deodorant coating agent mixed with an inorganic material having a deodorant function of elvan, biotite, talc, inorganic antibacterial agent, zeolite, activated carbon, silica gel, silica. The deodorizing coating agent according to claim 1, wherein the deodorizing coating agent dissolves a polymer selected from solution polymers such as toluene, ethyl acetate, and methyl soluble ethyl acetate solution, ethylene vinyl acetate copolymer, chlorinated rubber, polyamide, and nitro cellulose. To prepare; A deodorant coating film for disposable diapers, characterized in that the fat-soluble coating solution mixed with deodorant selected from inorganic materials, zeolite, activated carbon, silica gel, silica having deodorant function of elvan, biotite, talc, inorganic antibacterial agents. The deodorizing film of the disposable diaper according to claim 1, wherein the coating of the fragrance coating agent or the deodorizing coating agent is a pattern coating distributed in an area of 3 to 90% of the breathable plastic film area. The method of claim 1, wherein at least one far-infrared radiation inorganic material including ganban stone, biotite, talc, inorganic antibacterial agent, barium sulfate, jade powder, zeolite, activated carbon, silica, charcoal powder is added to the fragrance coating agent or deodorant coating agent. Deodorant film of disposable diapers.