KR100798405B1 - Preparing method of antibiosis ink composition having solubility in water and preparing method of sanitation articles using the same - Google Patents

Abstract

A method for preparing a water-soluble antibacterial ink composition to be used to color or pattern a sanitary product such as a diaper, and a method for preparing a sanitary product using the composition are provided to allow the exchange time of a diaper to be informed as an indicator of urine. A method for preparing a water-soluble antibacterial ink composition comprises the steps of (S110) making a mixture solvent comprising water and ethanol; (S120) mixing 45-50 parts by weight of the mixture solvent and 3-7 parts by weight of a natural mordant with stirring to obtain a first mixture; (S130) mixing the first mixture with 0.5-5 parts by weight of a natural coloring dye to obtain a second mixture; (S140) mixing the second mixture with 45-50 parts by weight of a water-soluble synthetic resin and 2-4 parts by weight of an antibacterial surfactant ABDM (alkylbenzyl dimethyl ammonium chloride), stirring it for 30-40 min, and stirring it with re-injecting the collected liquid evaporated one to form a gel composition; and (S150) maturing the gel composition at a room temperature for 24 hours.

Description

PREPARING METHOD OF ANTIBIOSIS INK COMPOSITION HAVING SOLUBILITY IN WATER AND PREPARING METHOD OF SANITATION ARTICLES USING THE SAME}

1 is a flow chart of a method for producing a water-soluble antimicrobial ink composition according to an embodiment of the present invention

2 is a flow chart of a method of manufacturing a sanitary article material according to an embodiment of the present invention.

The present invention relates to a method for producing a water-soluble antimicrobial ink composition used for printing a pattern on a diaper, etc., more specifically, does not emit harmful substances, it is possible to print a vivid color pattern on the hygiene products, the vivid pattern The present invention relates to a water-soluble antimicrobial ink composition which easily spreads by absorbed moisture and instructs timely replacement of the hygiene product, and a method of manufacturing the sanitary material using the same.

In order to live a hygienic life, a large amount of hygiene products such as baby diapers and sanitary napkins should be used.

In the process of manufacturing such hygiene products, in order to increase the marketability or improve aesthetics, in most cases, ink is used to color sanitary products or print patterns. In particular, in the case of a baby diaper, if the pattern serves as an indicator for urine, the diaper replacement time can be easily known without directly touching the diaper. Therefore, it is possible to prevent skin diseases such as diaper rash or bacterial contamination of the infant.

However, in the related art, in order to reduce the cost of coloring and printing of sanitary products, the sanitary articles are colored or printed using synthetic inks.

Synthetic inks used for coloring sanitary articles or printing patterns include synthetic colored dyes that exhibit color, binders made of synthetic resins that provide adhesion to the synthetic colored dyes, and dissolving the synthetic colored dyes and binders. It consists of an organic solvent. Since the synthetic ink contains not only an organic solvent used as a solvent, but also an organic solvent used in the manufacture of a synthetic coloring dye and a binder, volatile organic compounds such as formaldehyde, which are harmful to the human body, are emitted from the synthetic ink, thus adversely affecting the human body. Get mad.

In particular, since hygiene products such as baby diapers and sanitary napkins are items that come in direct contact with sensitive areas of the human body, hygiene products that are colored or printed with synthetic inks containing conventional organic solvents emit volatile organic compounds and It can seriously affect your health.

For example, Korean Unexamined Patent Publication No. 10-2005-5570 (published Jan. 14, 2005) includes a polyvinyl acetal resin, a coloring dye, an antibacterial agent, and a solvent, and the solvent is a mixed solvent of water and alcohol. An aqueous antibacterial ink for printing is disclosed.

The printing aqueous antimicrobial ink has antibacterial properties, and although a mixed solvent of water and alcohol is used as a solvent, the organic solvent used to synthesize the polyvinyl acetal resin and the coloring dye as a binder is a volatile organic solvent. There is a problem in that the hygiene products colored or printed using the ink by dissipating the solvent affect the health of the user.

Accordingly, in recent years, research and development for coloring hygienic products or printing patterns using natural ink made of natural materials are actively underway.

However, due to the inherent property of natural ink not being printed on hygiene products due to the lack of bonding force made of natural materials, it is very difficult to print using natural ink on hygiene products, and the printed colors are not clear. There is this.

In order to solve this problem, it is possible to manufacture the hygiene products using an ink added with a synthetic mordant that gives a binding force to the natural material, in this case, since the volatile organic compounds are emitted from the synthetic mordant contained in the ink, There is a problem that the meaning of using an ink made of a natural material is lost.

Therefore, there is a demand for the development of an ink composition and a sanitary article using the same, which perform an indicator function and an antibacterial function on urine and at the same time suppress the release of harmful elements.

Therefore, the first object of the present invention is to use only natural materials as a raw material does not emit harmful substances, it is possible to print a vivid color pattern by containing a natural coloring dye, a natural mordant, the vivid pattern is absorbed in hygiene products The present invention provides a method for producing a water-soluble antimicrobial ink composition which easily spreads by moisture, and instructs timely replacement of the hygiene product.

In addition, the second object of the present invention is to use a water-soluble antimicrobial ink composition to print a vivid color pattern, the vivid pattern is easily spread by the moisture absorbed by the sanitary article to instruct replacement of the sanitary product in a timely manner A method of making a sanitary article material is provided.

In order to achieve the first object of the present invention described above, an embodiment of the present invention comprises the steps of forming a mixed solvent of water and ethanol; Mixing 3 to 7 parts by weight of a natural mordant to 45 to 50 parts by weight of the mixed solvent to form a primary mixture; Mixing and stirring 0.5 to 5 parts by weight of the natural coloring dye to the primary mixture to form a secondary mixture; 45 to 50 parts by weight of the water-soluble synthetic resin and 2 to 4 parts by weight of the antimicrobial surfactant ABDM are mixed with the secondary mixture and stirred at a constant temperature for 30 to 40 minutes, and the liquid evaporation is recovered and stirred while re-inserting to form a gel composition. step; And it provides a method for producing a water-soluble antimicrobial ink composition comprising the step of aging the gel composition for 24 hours at room temperature.

In addition, in order to achieve the second object of the present invention, an embodiment of the present invention comprises the steps of forming a first nonwoven layer by cutting the nonwoven fabric to a certain size; Printing a pattern on the first nonwoven fabric layer using a water-soluble antimicrobial ink composition; Forming a synthetic resin film layer by applying a synthetic resin melt on one surface of the first nonwoven fabric layer on which the pattern is printed and fusion; Forming an absorbent layer made of a superabsorbent polymer by facing and compressing the superabsorbent polymer having a predetermined thickness on the synthetic resin film layer; And applying an adhesive to an edge of the absorbent layer and adhering a nonwoven fabric of a predetermined size to form a second nonwoven fabric layer.

The water-soluble antimicrobial ink composition prepared according to the present invention does not emit harmful substances by using only natural materials as raw materials, and contains natural coloring dyes and natural mordants to print a vivid color pattern on hygiene products. It is easily spread by the absorbed water and has an effect of instructing the replacement of the sanitary goods in a timely manner.

An embodiment of the method for producing a water-soluble antimicrobial ink composition of the present invention will be described in detail with reference to the drawings.

Figure 1 shows the procedure of the method for producing a water-soluble antimicrobial ink composition according to an embodiment of the present invention.

The water-soluble antibacterial ink composition of the present invention is 45 to 50 parts by weight of water-soluble synthetic resin, 45 to 50 parts by weight of a mixed solvent of water and ethanol, 0.5 to 5 parts by weight of natural coloring dyes, 3 to 7 parts by weight of natural mordant, and antimicrobial surfactant ABDM It consists of 2 to 4 parts by weight.

Referring to Figure 1, first, a method for preparing a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes forming a mixed solvent of water and ethanol (step S110).

In the present invention, as a solvent for uniformly dissolving a water-soluble synthetic resin, a natural coloring dye, a natural mordant, and an antimicrobial surfactant ABDM, by mixing water and ethanol to form a mixed solvent, by mixing 10 parts by weight of water, 20 parts by weight of ethanol The mixed solvent formed is preferable in terms of being able to effectively dissolve a water-soluble synthetic resin and a natural colored dye.

In addition, the method for preparing a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes mixing and stirring 3 to 7 parts by weight of a natural mordant to 45 to 50 parts by weight of the mixed solvent to form a primary mixture (step S120). ).

It is preferable to mix the natural mordant which provides the binding force to the natural colored dye in the mixed solvent before the natural colored dye, in view of easy process.

Therefore, 3 to 7 parts by weight of the natural mordant is mixed with 45 to 50 parts by weight of a mixed solvent of water and alcohol, and stirred for a sufficient time to form a primary mixture.

When the content of the water-soluble synthetic resin contained in the water-soluble antimicrobial ink composition prepared from the primary mixture is less than 45 parts by weight, the adhesive strength of the water-soluble antimicrobial ink composition is insufficient, so that the printed color is not properly printed on hygiene products and the printed color is not clear, and the water-soluble When the content of the synthetic resin exceeds 50 parts by weight, the viscosity of the water-soluble antimicrobial ink composition is increased more than necessary.

Natural colored dyes used in the preparation of the water-soluble antimicrobial ink composition of the present invention are made of natural materials and have characteristics that provide various pharmacological effects without releasing harmful substances. It also has Accordingly, a water-containing antibacterial ink composition is formed by containing a certain amount of a natural mordant that provides a binding force to the natural coloring dye and promotes color development.

Natural mordants, such as vegetable lye, vegetable tannins, bark, apple juice, Schisandra chinensis, hard water containing metals, and animal urine, including humans, may be used. The natural mordants may be used alone or in combination.

When the content of the natural mordant contained in the water-soluble antimicrobial ink composition is less than 3 parts by weight, sufficient binding strength is not provided to the natural colored dye of the water-soluble antimicrobial ink composition. Excessive binding force is provided to the coloring dye.

In addition, the method for preparing a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes mixing and stirring 0.5 to 5 parts by weight of the natural coloring dye in the primary mixture to form a secondary mixture (step S130).

Specifically, 0.5 to 5 parts by weight of the natural coloring dye that provides color to the primary mixture is mixed and stirred for a sufficient time to form a secondary mixture.

Natural coloring dyes that are mixed in the formation of the secondary mixture to provide a color to the water-soluble antimicrobial ink composition may be used as herbal dyes such as spines, giraffes, joiners, turmeric, cloves, marshmallows, yellow walls, persimmons, walnut shells, and gallnuts. The herbal dyes may be used alone or in combination.

Indigo persicaria, which is a kind of natural colored dye contained in the water-soluble antimicrobial ink composition of the present invention, is a blue-based herbal dye, which is used for treating leukemia, non-bleeding, chronic exudative erosion, carbuncle, and internal venom poisoning. It is used for the removal of, and is also used in the treatment of pneumonia, laryngitis, bronchitis hepatitis, jaundice, hemostasis, and the like.

Giraffe (solidago virgaurea) is a golden to earthy brown herbal dye, which is used as a medicine for tonic, diuretic gland alone, and hypothalamus in oriental medicine and folk medicine.

Red wood is a red-colored herbal dye, which is very red in color, salty in taste, and circulates blood well in the body. Therefore, it mainly treats menstrual pain or postpartum pain caused by fish blood caused by lack of blood circulation, and removes boils caused by poor blood circulation.

Turmeric is a golden herb dye, mainly used as a raw material of curry. For medicinal purposes, Idam, healthy stomach, sedative blood, Tongkyung, and small species Because of its efficacy, it is used as a treatment for indigestion, infection, hepatitis, gallbladder and cholangitis, jaundice, cirrhosis, postpartum fish stomach pain, and vaginal injury.

Clove is a red-based herbal dye that is very fragrant and can be used as it is or as a powder. Clove oil is also used as water or steam. It is also used as a food medicine preservative seizure and dental painkillers.

Rubins (rubis tinctoria) is a red herbal herbal dye, anti-blood, hemostasis, and pain relief. It is a good medicine for menstrual disorders, uterine congestion, endometritis, etc. Is available at.

The yellow wall is a yellow-colored dye that does not change in acid and alkali, so it can be dyed without mordant, and the color is soft. In addition, the yellow wall is known to be effective for anti-inflammatory, diuretic, branch, hepatitis, stomatitis, pulmonary tuberculosis.

Persimmon is a brown fruit, the presence of a lot of iodine is effective in thyroid addiction, persimmon leaves are known to have a function of lowering blood pressure.

The walnut shell (juglans regia) is a brown herb that can be dyed without mordant. In addition, the walnut shell is burned to maintain its weakness and is used for uterine bleeding, lactation, and the like.

Gallnut (Gallnut) is a beige system of herbal dyes to stop diarrhea and bleeding by astringent action of tannin, the main component, inhibits bacterial growth and inhibits glands. It is also used for colitis, dysentery, gastrointestinal bleeding, prolapse, keratinemia, nosebleeds, cold sweats, traumatic bleeding, wounds, mucosal inflammation, burns, ulcers, eczema, impetigo, and chronic cough.

0.5 to 5 parts by weight of a natural coloring dye selected from one or more of such herbal dyes are contained in the water-soluble antimicrobial ink composition to provide various pharmacological effects as well as color.

When the amount of the natural colored dye contained in the water-soluble antimicrobial ink composition is less than 0.5 parts by weight, the color of the water-soluble antimicrobial ink composition is blurred. When the content of the natural colored dye is more than 5 parts by weight, the manufacturing cost of the water-soluble antimicrobial ink composition is increased. do.

In addition, the method for producing a water-soluble antimicrobial ink composition according to an embodiment of the present invention is mixed with 45 to 50 parts by weight of water-soluble synthetic resin, 2 to 4 parts by weight of antimicrobial surfactant ABDM in the secondary mixture and stirred for 30 to 40 minutes at a constant temperature And, the step of recovering the liquid evaporation while stirring again to form a gel composition is included (step S140).

In the present invention, a certain amount of water-soluble synthetic resin dissolved in water as a binder to prepare an antimicrobial ink composition. When a pattern is printed on a sanitary article using an antibacterial ink composition containing a water-soluble synthetic resin, the pattern is easily spread by moisture such as urine absorbed by the sanitary article, thereby instructing the replacement of the sanitary article.

Water-soluble synthetic resins that are mixed in the formation of the gel composition and act as a binder of the antimicrobial ink composition to provide bonding strength include resins such as polyvinyl butyl alcohol, polyacrylamide, methylolated urea resin, methylolated melamine resin, and carboxymethylcellulose. The resins may be used alone or in combination.

If the content of the water-soluble synthetic resin contained in the water-soluble antimicrobial ink composition is less than 45 parts by weight, the adhesive strength of the water-soluble antimicrobial ink composition is insufficient, so that the printed colors are not properly printed on the sanitary article and the printed color is not clear, and the content of the water-soluble synthetic resin is 50 parts by weight. If exceeded, the viscosity of the water-soluble antimicrobial ink composition is increased more than necessary.

의 화학식을 지니고 있는 물질이다.The antimicrobial surfactant ABDM, which is mixed in the formation of the gel composition and provides antimicrobial activity to the water-soluble antimicrobial ink composition, is a quaternary ammonium salt in which one CH ₃ -group of Alkyl Trimethylammonium Chloride is substituted with a benzyl group.

A substance having the chemical formula of

Although originally developed as a surfactant, ABDM was discovered in 1935, and has been widely used as an antimicrobial agent since it was discovered as an antimicrobial agent.

Specifically, the ABDM coated on the surface of the substrate absorbs and increases moisture in the atmosphere until 24 hours, but thereafter, the ABDM is gradually erased by the absorbed moisture and completely removed after 48 hours. It has been shown to have characteristics.

In the present invention, a water-soluble antimicrobial ink composition is prepared, including 2 to 4 parts by weight of ABDM.

When the content of the ABDM contained in the water-soluble antimicrobial ink composition is less than 2 parts by weight, the water-soluble antimicrobial ink composition is lowered. When the content of the ABDM exceeds 4 parts by weight, the production cost of the water-soluble antimicrobial ink composition is increased due to the excessive use of ABDM. .

As described above, the composition in which the water-soluble synthetic resin and the antimicrobial surfactant ABDM are mixed into the secondary mixture is injected into a reaction apparatus capable of recovering liquid evaporation and stirred at a low speed of 200 to 300 rpm at 30 to 40 minutes at 50 to 60 ° C. Gelling to form a gel composition. The mixed solvent evaporated at this time is recovered and re-injected to maintain the constituent components of the composition.

If the gelling temperature of the composition is less than 50 ℃ the composition does not gel properly, if the gelling temperature exceeds 60 ℃ may deteriorate the composition.

In addition, if the gelation time of the composition is less than 30 minutes, the composition does not gel sufficiently, and if the gelation time exceeds 40 minutes, the composition no longer gels.

In addition, the method for producing a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes the step of aging the gel composition for 24 hours at room temperature (step S150).

As described above, the gel composition is left to mature for 24 hours at room temperature, thereby completing the preparation of the water-soluble antimicrobial ink composition of the present invention.

The water-soluble antimicrobial ink composition can reduce the manufacturing cost of the manufacturing method is simple.

Hereinafter, the present invention will be described in detail with reference to a preferred embodiment. However, the following Example is for illustrating this invention concretely, It does not limit only to this.

<Example>

1. 200 g of purified water and 400 g of ethanol were mixed to form 600 g of a mixed solvent.

2. 500 g of the mixed solvent was mixed with 50 g of vegetable lye as a natural mordant and stirred for 10 minutes to form a primary mixture.

3. 40 g of giraffe, a natural dye, was mixed with the primary mixture and stirred for 30 minutes to form a secondary mixture.

4. Gel composition by mixing 500 g of polyvinyl butyl alcohol and 30 g of ABDM to the secondary mixture to be injected into a reaction apparatus capable of recovering liquid evaporation and gelling by stirring at 200 rpm for 40 minutes at 50 ° C. Formed.

5. The gel composition was left to mature for 24 hours to prepare a water-soluble antimicrobial ink composition.

An embodiment of a method for producing a hygiene article material using the water-soluble antimicrobial ink composition of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows the procedure of the manufacturing method of the hygiene article material using a water-soluble antimicrobial ink composition according to an embodiment of the present invention.

Referring to FIG. 2, first, a method of manufacturing a sanitary article material using a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes cutting a nonwoven fabric into a predetermined size to form a first nonwoven fabric layer (step S210). .

Specifically, a nonwoven fabric made of chlorine-free pulp is cut into a size suitable for a sanitary article to be manufactured to form a first nonwoven fabric layer. The nonwoven fabric made of the chlorine-free pulp refers to a nonwoven fabric in which fluorescent material is removed by bleaching with hydrogen peroxide instead of chlorine.

In addition, the method for producing a sanitary article material using a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes the step of printing a pattern using the water-soluble antimicrobial ink composition of claim 1 on the first nonwoven fabric layer (step S220). .

By printing a vivid pattern using the water-soluble antimicrobial ink composition on the first nonwoven fabric layer, a printed first nonwoven fabric layer is formed using the water-soluble antimicrobial ink composition.

As described above, the first nonwoven layer printed with the pattern forms an outer side of the sanitary article, and the first nonwoven layer is easily spread by the moisture absorbed by the sanitary article to recognize the replacement time of the sanitary article.

In addition, the method for producing a sanitary article material using a water-soluble antimicrobial ink composition according to an embodiment of the present invention is a step of forming a synthetic resin film layer by applying a melt melt on the surface of the first non-woven layer printed with the pattern and fusion It is included (step S230).

The synthetic resin film layer is preferably made of a polyethylene material having a relatively low cost, easy processing, and suitable moisture permeability among the synthetic resin. That is, by applying a polyethylene melt to the surface of one side of the first nonwoven fabric layer and fusion, a polyethylene resin film layer having a certain thickness is formed.

In addition, the manufacturing method of the hygiene article material using the water-soluble antimicrobial ink composition according to an embodiment of the present invention comprises the step of forming a water-absorbent layer of superabsorbent polymer material by facing and compressing the superabsorbent polymer of a certain thickness on the synthetic resin film layer. (Step S240).

The superabsorbent polymer used to form the absorbent layer is a crosslinkable polymer composed of polyvinyl alcohol, polyacrylonitrile, and polyacrylamide, and can absorb tens of thousands of times its own weight. In this state, even when pressure is applied to the polymer, water does not leak out. The absorbent layer made of such a super absorbent polymer material absorbs urine and the like and prevents it from leaking out of the sanitary article, and at the same time, the absorbed moisture permeates the synthetic resin film layer to spread the pattern of the first nonwoven fabric layer. It is to instruct the replacement of the timely.

In the present invention, a polyvinyl alcohol-based superabsorbent polymer having a low cost and excellent processability is used, and specifically, a polyvinyl alcohol-based superabsorbent polymer having a certain thickness is applied to the synthetic resin film layer, thereby compressing it. The absorber layer is formed.

In addition, the method for producing a sanitary article material using a water-soluble antimicrobial ink composition according to an embodiment of the present invention includes applying an adhesive to the edge of the absorbent layer and adhering a non-woven fabric of a predetermined size to form a second nonwoven layer ( Step S250).

The second nonwoven fabric layer has the same size as the first nonwoven fabric layer using a nonwoven fabric made of chlorine-free pulp similarly to the first nonwoven fabric layer.

In order to form this second nonwoven layer, a hygiene article material is produced by applying an adhesive to the edge of the absorbent layer, facing the nonwoven fabric and pressing. The adhesive is used only at the edges of the second nonwoven layer and the absorbent layer to produce a sanitary article material, thereby reducing the amount of adhesive used and maintaining the properties of the sanitary article.

The water-soluble antimicrobial ink composition prepared by the present invention contains a natural coloring dye and a natural mordant to print a vivid color pattern on the sanitary article, and the vivid pattern is easily spread by the absorbed moisture to replace the sanitary article. Has the effect of directing the timely.

In addition, the water-soluble antimicrobial ink composition does not emit harmful substances using only natural materials as a raw material, it contains an antimicrobial surfactant and excellent antimicrobial properties do not adversely affect the health of users of hygiene products.

While the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

Claims (8)

Forming a mixed solvent of water and ethanol; Mixing 3 to 7 parts by weight of a natural mordant to 45 to 50 parts by weight of the mixed solvent to form a primary mixture; Mixing and stirring 0.5 to 5 parts by weight of the natural coloring dye to the primary mixture to form a secondary mixture; 45 to 50 parts by weight of a water-soluble synthetic resin, 2 to 4 parts by weight of an antimicrobial surfactant ABDM, and stirred for 30 to 40 minutes, recovering the liquid evaporation and stirring while re-feeding the secondary mixture to form a gel composition; And Method for producing a water-soluble antimicrobial ink composition comprising the step of aging the gel composition for 24 hours at room temperature. The method of claim 1, wherein the forming of the mixed solvent is performed by mixing in a weight ratio of water 1: ethanol 2. The method of claim 1, wherein the natural mordant mixed in the formation of the primary mixture is selected from the group consisting of vegetable lye, vegetable tannins, bark, apple juice, Schisandra chinensis, hard water containing metal components, and animal urine Method for producing a water-soluble antimicrobial ink composition, characterized in that. The method of claim 1, wherein the natural coloring dyes to be mixed in the step of forming the secondary mixture is selected from the group consisting of scallop, giraffe, joiner, turmeric, cloves, madder, yellow wall, persimmon, walnut shell, and gall bladder Method for producing a water-soluble antimicrobial ink composition characterized in. delete The method of claim 1, wherein the water-soluble synthetic resin mixed in the step of forming the gel composition is selected from the group consisting of polyvinyl butyl alcohol, polyacrylamide, methylolated urea resin, methylolated melamine resin, and carboxymethyl cellulose. Method for producing a water-soluble antimicrobial ink composition characterized in. Cutting the nonwoven to a constant size to form a first nonwoven layer; Printing a pattern on the first nonwoven fabric layer using the water-soluble antimicrobial ink composition of claim 1; Forming a synthetic resin film layer by applying a synthetic resin melt on one surface of the first nonwoven fabric layer on which the pattern is printed and fusion; Forming an absorbent layer made of a superabsorbent polymer by facing and compressing the superabsorbent polymer having a predetermined thickness on the synthetic resin film layer; And A method of manufacturing a hygiene article material using a water-soluble antimicrobial ink composition comprising applying an adhesive to the edge of the absorbent layer and adhering a nonwoven fabric of a predetermined size to form a second nonwoven fabric layer. The method of claim 7, wherein the synthetic resin melt applied in the forming of the synthetic resin film layer is made of polyethylene.

Images