JP2001353182A - Sanitary cloth napkin and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sanitary cloth napkin which is recyclable, environment friendly and does not adverse affect a human body with plastic or chemical substance. SOLUTION: The sanitary cloth napkin 1 is formed by sewing together a rectangular main body 2 and inner pad 3. The inner pad 3 is so cut as to be smaller in the length of a horizontal direction H with respect to the main body 2 and to be equal in the length in a vertical direction V. The inner pad 3 is sewn to the center in the horizontal direction H of the main body 2 in the state of aligning the main body 2 and the inner pad 3 at both ends of the vertical direction V. Both of the main body 2 and the inner pad 3 consist of unbleached white cotton flannel fabrics. The main body 2 is cut round at four corners. As a result, the sewing at the circumference is made easier and the bending in use is made easier as well. Folds are put in the napkin along the vertical direction V and the napkin is folded to a suitable size and is arranged between shorts and the body in user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sanitary napkin for absorbing menstrual blood excreted during menstruation, and a method for producing the same.

[0002]

2. Description of the Related Art Conventional sanitary napkins are made of cotton-like pulp or polymer absorbent between a water-permeable top sheet made of a porous thermoplastic film and a water-impermeable back sheet made of a similar plastic film. And a peripheral edge of the front and back sheets are fused by hot embossing. On the back sheet,
An adhesive tape is attached to the napkin so that the napkin can be attached to the shorts so as to prevent displacement during wearing.

[0003]

However, the above-mentioned conventional sanitary napkin is a so-called "disposable type", and cannot reuse used napkins. Therefore, there is a problem that the burden on the environment is large in terms of waste of resources, increase of garbage, or generation of dioxin during incineration.

[0004] Further, in the conventional sanitary napkin, when worn, the plastic material comes into direct contact with the skin, which may cause "rash" and "itch", and a small amount of additive contained in the plastic. The effects of chemical substances such as absorption promoters, deodorants, and fragrances contained in substances and absorbents on the body cannot be ignored. Therefore, there is also a problem that the load on the female body is large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is a sanitary sanitary device that can be reused and has a small load on the environment, and has no load on the body due to plastics and chemical substances. The purpose is to provide a napkin.

[0006]

In order to achieve the above object, a sanitary napkin according to the present invention is constructed by sewing a rectangular main body made of unbleached cotton flannel and a rectangular patch. I have. The center is cut so that its length in the horizontal direction is small and the length in the vertical direction is equal to the main body, and the main body and the center are aligned at both ends in the vertical direction. The center patch is sewn.

[0007] The above-mentioned sanitary napkin may be dyed with a natural dye (vegetable dye). As the natural dye, it is desirable to use one obtained by boiling loquat leaf, onion skin, or mugwort. Also, Akane, Ai, Acorn, Wisteria, etc. may be used.

The above sanitary cloth napkin has a first stage of producing a fabric from raw cotton, a second stage of cutting and sewing the fabric produced in the first stage, and a third stage of dyeing with a natural dye.
It is manufactured through steps. The first stage includes a spinning process of spinning raw cotton fibers into cotton yarn, a raw weaving process of weaving the fabric with the spun cotton yarn, a refining process of refining the woven fabric and performing a brushing process, and a chlorine bleaching process. Does not include steps.

The second step includes a cutting step of cutting the unbleached cotton flannel material obtained in the first step into a rectangular body and a rectangular center, and a sewing step of sewing the center to the main body. The third step is a pre-treatment step of adding protein to the dough, and the first step is to boil the pre-treated sanitary napkin using a liquor boiled from loquat leaves, mugwort, or onion skin. A dyeing step, a mordant step of dipping the sanitary cloth napkin dyed in the first dyeing step in a mordant liquid, a second dyeing step of dyeing the mordant-treated sanitary cloth napkin with the dye liquid, It is desirable to include a sun drying step in which the sanitary napkin dyed in the second dyeing step is squeezed and dried in the sun.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a sanitary napkin according to the present invention will be described. First, the structure will be described with reference to FIGS. 1 and 2, and then the manufacturing method will be described with reference to FIGS. FIG. 1 is a plan view showing the structure of the sanitary napkin according to the embodiment, and FIG. 2 is an exploded perspective view thereof.

The sanitary napkin 1 according to the embodiment is formed by sewing a rectangular main body 2 and a rectangular center pad 3 together. The center address 3 is cut so that the length in the horizontal direction H is small and the length in the vertical direction V is equal to the main body 2, and the main body 2 and the center address 3 are aligned at both ends in the vertical direction H. A center address 3 is sewn at the center of the main body 2 in the lateral direction H (position indicated by a broken line in FIG. 2). These main body 2 and center address 3
Both are made of unbleached cotton flannel. The main body 2 has four rounded corners. This makes it easy for the surrounding sewing machine to be set, and also easy to bend during use.

At the time of use, a fold is made along the vertical direction V, folded to an appropriate size and placed between the shorts and the body. Since the cotton flannel material is used, the frictional resistance between the shorts and the shorts is large, and the displacement at the time of use can be prevented without using an adhesive tape as in the related art. After use, the water is changed several times, washed with water, washed with soap, etc., and dried in the sun, so that the fabric can be used again and again as long as the fabric is not damaged.

Next, a method of manufacturing the sanitary napkin according to the above embodiment will be described. The manufacturing method includes a first stage of manufacturing a fabric from raw cotton, a second stage of cutting and sewing the fabric, and a third stage of dyeing with a natural dye. A plurality of steps included in each stage will be described in order according to the flowchart shown in FIG.

The first stage includes a spinning process of Step 1, a weaving process of Step 2, a refining and raising process of Step 3. In the spinning process, raw cotton fibers are spun into cotton yarn. As raw cotton, it is desirable to use organic cotton cultivated without pesticides in order to enhance safety. The spinning process is usually performed in a specialized spinning factory. In the raw weaving process, the fabric is woven with spun cotton yarn. The weaving process is performed in a weaving factory. In the refining and raising process, the woven fabric is refined and subjected to a raising process. The refining and raising processes are performed in a dyeing factory and do not include the usual dyeing process and chlorine bleaching process. The fabric is washed with water, desized, dried and raised.

The second stage includes a cutting step of step 4 and a sewing step of step 5. In the cutting step, the unbleached cotton flannel material obtained in the first step is cut. The fabric is generally 9 width
Since it is supplied as a piece of cloth having a length of 3 cm and a length of 50 m, it is cut into a size as shown in FIG. 4, for example. In this specification, a direction corresponding to the longitudinal direction of the cloth is defined as a vertical direction V, and a direction corresponding to the width direction is defined as a horizontal direction H based on the state of the cloth.

According to the example shown in FIG.
Large, medium, and small three-piece set 2 as shown in Table 1 below
As a result, the main body and the inside of the set can be obtained. The body is cut round at the four corners. In addition, what was shown in FIG. 1 and FIG.
This is a configuration corresponding to the large, and the medium and small can be created by sewing together like the large. Large, medium, and small sanitary napkins can be selected according to the amount of menstrual blood. For example, large folds, medium folds, and small folds can be used. For large and medium use, the surface with the menstrual blood adhered inside is folded back, so that a clean surface can be applied to the body.

[0017]

[Table 1]

In the sewing step, first, the both ends of the middle portion along the longitudinal direction are sewn, temporarily fixed to the center of the main body, and the two ends of the middle sewn are sewn together by linear stitching. Then, overlock stitching is performed along the periphery of the sewn napkin.

In the second stage, the sanitary napkin is completed and can be used in this state. However, when used on a white background, when used, washed and dried, menstrual spots tend to be noticeable. Therefore, in this embodiment, the sanitary napkin sewn in the third stage is dyed. However, since the use of chemical dyes is harmful to the body, use natural dyes that are harmless to the body. Further, by making a dye from loquat leaf, mugwort or the like, a medicinal effect such as prevention of rash can be provided.

The third stage includes a pretreatment step of step 6, a first dyeing step of step 7, a mordant step of step 8, a second dyeing step of step 9, and a sun drying step of step 10. The sewn sanitary napkin is subjected to a pretreatment process for fixing the dye in step 6. In the pretreatment step, the sanitary napkin ground, which has been blanched and dehydrated in advance, is immersed in a dilute solution of soybean juice for about 30 minutes, squeezed, and then dried in the shade. The soybean juice is a liquid obtained by soaking soybeans overnight with water, pulverizing the whole water with a mixer, and filtering it off with a cloth. This liquid is diluted with about 10 times water and used as a soaking liquid. Since the cotton flannel material is poor in protein, the dye is difficult to fix as it is. Therefore, in this step, the cloth is pretreated so that the dye is easily fixed by including the protein.

In the first dyeing step, loquat leaves, mugwort,
Use a liquor boiled from one of the onion skins. Blanch the pretreated sanitary napkin, then squeeze,
Put into a dye liquor and bring to a boil, then boil for about 15 minutes.

In the mordant step, a sanitary cloth napkin which has been lightly squeezed after the first dyeing liquid dipping step is dipped in the mordant liquid in order to fix the coloring matter of the dye to the cloth and improve color development. As the mordant, a mixture of rust nails, vinegar, and water, boiled, left to stand for about 10 days, and then filtered (iron mordant) or a solution of baked alum is used. In the case of iron mordant, an appropriate amount of the solution is used by dissolving it in water enough to soak a sanitary napkin. In the case of using roasted alum, 4 g of roasted alum is dissolved in 500 cc of hot water and 3500 cc of water is added to 100 g of the dough. In any case, the cloth is shaken for about 5 minutes to allow the mordant to soak evenly, and then left for about 15 minutes.

Next, the sanitary napkin after the mordant dyeing is washed with water, squeezed, and immersed again in the same dyeing solution as in the first dyeing step in the second dyeing step. Boil in the dyeing liquor for about 15 minutes, stop the fire and leave it for about 30 minutes. In the last sun drying step, the sanitary napkin after the second dyeing step is washed with water and dried in the sun. With the above steps, the first, second, and third steps are all completed.

[0024]

As described above, since the sanitary napkin of the present invention is made using unbleached cotton flannel, it can be used repeatedly by washing after use. The self-management of the user becomes possible, and the amount of trash can be reduced. In addition, there is no possibility that dioxin will be generated by incineration when discarded due to damage or the like. Therefore, the burden on the environment can be reduced.

Further, since no harmful materials or additives such as plastic materials and chemicals are used, there is no adverse effect on the body, and the load on the female body of the woman can be reduced. In particular, when dyed with natural dyes such as loquat leaves and mugwort, not only can the appearance be improved to make the stain less conspicuous, but also the rash and itch can be prevented by the medicinal properties of the components.

[Brief description of the drawings]

FIG. 1 is a plan view of a sanitary napkin according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the sanitary napkin of FIG.

FIG. 3 is a flowchart showing a manufacturing process of the sanitary napkin of FIG.

FIG. 4 is a plan view showing an example of cutting the sanitary napkin of the embodiment.

[Explanation of symbols]

 1 ... sanitary napkin, 2 ... body, 3 ... middle

Claims (7)

[Claims] 1. A rectangular body, both made of unbleached cotton flannel, and a rectangular centerpiece, wherein the centerpiece has a smaller horizontal length and a equal vertical length with respect to the body. A sanitary cloth napkin, wherein the center patch is sewn to the center of the main body in the horizontal direction with the main body and the center patch aligned at both ends in the vertical direction. 2. The sanitary napkin according to claim 1, wherein the napkin is dyed with a natural dye. 3. The sanitary napkin according to claim 2, wherein the natural dye is obtained by boiling any of loquat leaves, onion skin, and mugwort. 4. The method according to claim 1, further comprising a first step of producing a fabric from raw cotton, a second step of cutting and sewing the fabric produced in the first step, and a third step of dyeing with a natural dye. For producing sanitary cloth napkins. 5. The first stage includes a spinning process of spinning raw cotton fibers into a cotton yarn, a raw weaving process of weaving the fabric with the spun cotton yarn, a refining process of refining the woven fabric, and performing a raising process. 5. The method for producing a sanitary napkin according to claim 4, comprising a step and no chlorine bleaching step. 6. The second step is a cutting step of cutting the unbleached cotton flannel material obtained in the first step into a rectangular main body and a rectangular center, and sewing the main body to the main body. The method for producing a sanitary napkin according to claim 4 or 5, comprising a step. 7. The sanitary napkin, wherein the third step is a pre-treatment step of adding protein to the dough, and a pre-treated sanitary napkin using a dye solution boiled from any of loquat leaves, mugwort, and onion skin. A first dyeing step of boiling and dyeing the sanitary cloth napkin dyed in the first dyeing step in a mordant liquid, and dyeing the mordant-treated sanitary cloth napkin using the dye liquid. The sanitary cloth according to any one of claims 4 to 6, further comprising: a second dyeing step; and a sun drying step of squeezing and drying the sanitary cloth napkin dyed in the second dyeing step in the sun. Napkin manufacturing method.