JP4841002B2 - Nonwoven fabric and method for producing the nonwoven fabric - Google Patents

Description

  The present invention relates to a non-woven fabric containing dried tea and a dry and wet manufacturing method for the non-woven fabric, in particular, one or more organic fibers, one or more organic fiber waste materials, one or more organic wastes or one or more organic wastes. Containing at least two types of fibrous waste, or one or more organic fibers, one or more organic fiber waste materials, one or more organic wastes, and one or more fibrous wastes, and one more The present invention relates to a non-woven fabric containing the above dried tea and a dry and wet manufacturing method of the non-woven fabric. The present invention also relates to a non-woven fabric containing dried tea and a dry and wet manufacturing method of the non-woven fabric, particularly when the organic fiber is a non-woven fabric material, the organic fiber is cotton, wool, pulp, polypropylene. Fiber, polyethylene fiber, nylon fiber, vinylon fiber, polyester fiber, viscose rayon fiber or cupra rayon fiber, or two or more of these, and especially when organic fiber waste is used as a nonwoven fabric material Organic fiber waste includes cotton waste, wool waste, pulp waste, polypropylene fiber waste, polyethylene fiber waste, nylon fiber waste, vinylon fiber waste, polyester fiber waste, viscose rayon fiber waste or cupra rayon fiber waste, or among these More than two kinds, and in particular, non-woven organic waste When it is used as a material, organic waste includes toilet paper waste, tissue paper waste, bed sheet waste, mask waste, eye mask waste, seat head cover waste, pillow cover waste, diaper waste, paper diaper waste, toilet seat sheet waste , Animal paper diaper waste material, sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad waste material, animal sheet waste material, fresh fish transport absorber waste material or vegetable transport absorber waste material, or Among these waste materials, two or more of them are used. Particularly, when fiber waste is used as a nonwoven material, the fiber waste is, for example, mechanical pulp waste, chemical pulp waste, semi-chemical pulp. Waste material, cotton-like pulp waste material, wood pulp waste material, waste paper pulp waste material, wood waste, wood waste, wood powder, house demolition material, new construction waste material, paper powder, chi Paper waste material, punch scraps, sanitary products waste classification fluff pulp, water absorbent fiber waste material, water absorbent resin waste material, paper powder containing water absorbent resin, paper powder generated during binding, paper powder generated during non-woven fabric manufacture , Paper powder generated in the paper making process or paper powder generated during the manufacture of sanitary materials, or two or more of these, and one or more of these listed materials as a raw material, and a non-woven fabric containing dried tea and The present invention relates to a dry and wet manufacturing method for the nonwoven fabric.

  In general, non-woven fabrics are used as sanitary materials in bedding sheets, paper diapers, sanitary napkins, milk pads, sweat pads, incontinence pads, diapers and pet sheets, and as medical materials, surgical masks, gowns, It is used for caps, gauze, bandages, eyebands, sterilized packaging materials, etc. Hygiene products and medical materials are required to have flexibility, water absorption and strength, and to be clean. Even in the case of non-woven fabrics used in hygiene products, for example, bedding sheets In some cases, it is used to lay on a bed or mattress to maintain the durability of the bed or futon and to keep the bed or futon clean. It is required to be clean and strong.

For example, during sleep, moisture other than sweat is constantly excreted outside from human skin, and these moisture is absorbed by the bed and nightclothes. For example, hygiene used in bedding sheets The product is further required to have heat retention and moderate moisture absorption.
In addition, bedding sheets and bedding are made of highly hygroscopic and water-absorbent fibers, so the keratinized stratum corneum that has fallen from the skin surface and the dirt that adheres to the skin can be contaminated with sebum or sweat from the skin. It adheres and is easily contaminated, causing pathogenic bacteria to grow, and is particularly problematic in the case of pressure sores and the like.
Therefore, conventional bedding sheets and bedding are made of cotton that is resistant to washing so that they can be frequently replaced and used repeatedly in order to maintain cleanliness.
Japanese Patent Laid-Open No. 11-1896 Japanese Patent Laid-Open No. 2000-129592 JP 2000-70097 A

  Accordingly, the present applicant is provided with a beverage so that the absorbent used in the disposable bedding sheets and bedding can be kept clean for a long time even when in use. Paying attention to the fact that the extract of tea husk, which is a tea residue, has the property of suppressing the growth of Staphylococcus aureus, Streptococcus and Legionella bacteria, it has hygiene products including dried tea husk extract The absorber was proposed (refer patent document 1, patent document 2, and patent document 3).

On the other hand, the tea husks of tea extraction cakes discharged from the manufacturing industry of canned teas and packed teas, and the remaining tea husk waste liquid remaining in the tea husks and exuding from the tea husks are enormous. However, since the tea husk contains a residual amount of tea husk containing a considerable amount of tannins, it is difficult to treat tannins and the like even when used for compost. Moreover, since tannins are contained in this way, the tea husk cannot be discarded in the bowl, and in order to dispose it, it must be detoxified by the activated sludge method or the like. Moreover, although the amount of the precipitate generated by the activated sludge method is enormous, it has a poor use and is a problem because it is exclusively incinerated.
The present invention solves the problems associated with non-woven fabrics of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella, Streptococcus, and Legionella, and occurs in the manufacturing process of canned tea and packed tea The purpose is to treat tea husk and tea husk residual waste liquid.

The present inventor, for example, in the case of a green tea, a non-woven fabric containing a dried product of a concentrated liquid of tea extracted from a dried tea concentrate or a tea husk, which is a tea extraction residue, such as green tea, oolong tea or black tea. Inhibits the growth of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella, Streptococcus and Legionella over 72 hours, and in the case of black tea, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus The present invention has been found by inhibiting the growth of Streptococcus and Legionella bacteria over 72 hours.
The present invention concentrates an extract obtained by extracting tea leaves or tea leaves or tea leaves and tea leaves, and increases the amount of dissolved substances in the extract, thereby allowing Staphylococcus aureus, Salmonella, Streptococcus The purpose of this invention is to effectively use these tea leaves by providing a nonwoven fabric with enhanced growth inhibitory action against Escherichia coli and Pseudomonas aeruginosa as well as growth inhibitory action against bacteria of the genus Legionella.

That is, the present invention includes an organic fiber waste, and waste organic matter of the waste and fibrous or waste waste or fibrous organic, is nonwoven fabric made of a mixture of super absorbent polymer , Based on a nonwoven fabric having a basis weight of 18 g / m ² , the nonwoven fabric is characterized in that it contains 0.1 g or more of dried tea per square meter of the nonwoven fabric. produced by law or dry method, and an organic fiber waste, and waste waste and fibrous waste or organic waste or fibrous organic, a nonwoven fabric made of Kongo Animal Crossing the superabsorbent polymer is coated with a tea concentrate, by drying, as a reference is 18 g / m ² nonwoven fabric basis weight, the dried product of 0.1 grams or more of tea per square meter of the nonwoven fabric, that is contained in the non-woven fabric Features A method of manufacturing a non-woven fabric.

In the present invention, the dried tea product, that is, the nonwoven fabric containing the tea-dissolving substance is, for example, 0.1 g or more of dried tea product per square meter based on a nonwoven fabric having a basis weight of 18 g / m ^2. Preferably, it contains 0.3 gram or more, more preferably 0.5 gram or more. In general, the basis weight of a nonwoven fabric is largely changed, for example, from 17 g / m ^{2 to} 300 g / m ² , but in the present invention, the basis weight of the nonwoven fabric containing the dried tea product is the basis weight of the nonwoven fabric. Is larger than 18 g / m ² , the amount of dried tea contained in the nonwoven fabric corresponds to the weight ratio of the basis weight of the nonwoven fabric applied to the basis weight of the nonwoven fabric, for example, a multiple thereof. Can be increased.

In the present invention, the dried tea product is contained in the nonwoven fabric by impregnating the nonwoven fabric with a concentrated tea solution by spraying or the like, and drying the nonwoven fabric impregnated with the concentrated tea solution.
In the present invention, a non-woven fabric containing dried tea can be produced, for example, by impregnating and holding a concentrated tea solution in a wet non-woven fabric before the drying step and drying the non-woven fabric. . However, it may be produced by impregnating and holding a concentrated tea solution on a dried non-woven fabric that has undergone a drying process.

In the present invention, the term tea refers to a tea leaf extract extracted from one or more types of tea leaves, a tea shell extract extracted from one or more types of tea leaves (hereinafter referred to as tea leaf extract) (hereinafter referred to as tea leaves extract) or It means one or more types of residual tea husk (hereinafter referred to as “tea husk residual waste liquid”) or a mixed liquid containing two or more of tea leaf extract, tea husk extract and tea husk residual waste.
In the present invention, the term “tea concentrate” means a concentrate for one or more tea leaf extracts, a concentrate for one or more tea shell extracts, or a concentrate for one or more tea shell residual waste liquids, It means a mixture of two or more concentrates among a concentrate of tea leaf extract, a concentrate of one or more tea husk extracts and a concentrate of one or more tea husk residual wastes. The tea leaves and tea shells used in the preparation of the tea concentrate may be of the same type or different types.
In the present invention, tea leaves mean tea buds or tea leaves of green tea, black tea, oolong tea or other tea, and the tea husks are discharged during the production of green tea, tea or oolong tea such as packed or canned tea. Extract residue, that is, husk. In the present invention, tea leaves and tea shells are not distinguished by the production area and kind, and mean general tea leaves and tea shells.

In the present invention, the tea concentrate is obtained by extracting one or more tea leaves, one or more tea leaves, or one or more tea leaves and tea leaves (hereinafter referred to as one or more tea leaves and / or tea leaves) with warm water or hot water. The obtained tea leaf and / or tea husk extract can be further produced by heating, vacuuming, or concentration by heating and vacuum. In particular, one or more tea leaves and / or tea leaves extracted with warm water or hot water, a tea leaf extract, a tea shell extract or a tea leaves residual waste liquid, or a mixture of two or more thereof, that is, tea, is at least 5 of the amount of the tea. / 6 or less, preferably 3/4 or less, more preferably 1/2 or less.
In the present invention, the concentrated solution of the tea husk extract is packed or canned oolong tea (oolong tea), green tea, and tea husk discharged as an extract during tea production, extracted with warm water or hot water, and further by heating or It can be produced by concentration under reduced pressure or by heating and reduced pressure. However, in any case of oolong tea, green tea and black tea, or in any case of tea leaves or tea husks, extraction with hot water is preferable because the dissolved amount of the dissolved substance increases.

The tea leaves discharged as an extraction residue (extracted rice cake) at the time of producing packed or canned Oolong tea (green tea), green tea, and black tea are generally discharged from the tea leaves in the present invention because they are discharged including the residual waste liquid from the tea leaves. The resulting tea husk extract contains tea husk residual waste liquor, which is concentrated in a concentration step containing the tea husk extract to obtain a tea concentrate. Thus, the tea husk may contain the tea husk residual waste liquid, and may be dehydrated or dried. After the dehydration of the tea husk, the tea husk remaining waste liquid and the dissolved substance in the tea husk are remarkably reduced after dehydration, and can be used as an animal excrement treatment material or can be discarded.
In the present invention, the term tea concentrate also means a solution obtained by mixing a tea concentrate with water, tea or tea, or a mixture of tea or anything other than tea. It includes those diluted with water at the above temperature, and those obtained by mixing a tea concentrate with a tea or a solution other than tea having a lower dissolved substance content than the tea concentrate.

In the present invention, the non-woven fabric is produced by impregnating a non-woven fabric with a concentrated tea solution and drying, and contains a dried tea product.
In the present invention, when the amount of dried tea contained in the nonwoven fabric is increased, that is, when the amount of dissolved tea material is increased, the dissolved tea material can be sufficiently adhered to the entire nonwoven fabric. The growth of bacteria such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella, Streptococcus and Legionella can be suppressed over a long period of time. As described above, the present invention extracts the dissolved substances in the tea leaves and the remaining residual liquid from the tea leaves as well as the tea leaves, and contains in the nonwoven fabric dissolved substances such as tannin, saponin, and zinc, which are harmful in the tea leaves, The nonwoven fabric is imparted with the property of suppressing the growth of bacteria possessed by the lysing substance and the property of performing deodorizing and anti-inflammatory effects. When the dissolved substance content of tea is large, the amount of dissolved substance contained in the nonwoven fabric inevitably increases even if the spray amount applied to the nonwoven fabric by spraying or the like is a constant amount.

  Thus, in order to obtain a dried tea product to be contained in the nonwoven fabric, the present invention is capable of dissolving tannin, saponin, and zinc, which are harmful to disposal in waste such as tea leaf, tea husk or residual tea husk waste liquid. Since the substances are extracted and separated from the waste, the extracted tea leaves and other wastes are reduced in the content of tannin, saponin, and zinc, which are harmful to disposal, and can be disposed of. be able to.

  In the present invention, the nonwoven fabric containing dried tea can be produced in the dry and wet nonwoven fabric production processes. In the dry nonwoven fabric manufacturing process, on the web formed by intertwining the fibers, or on the web in which the fibers are intertwined and coated with the adhesive, and on the web that has been wet-treated if necessary. The concentrated tea liquid can be directly applied and impregnated by spraying or the like and dried in a drying section. In the wet non-woven fabric manufacturing process, the paper made containing an adhesive or the like is transferred to a dehydrating section or a drying section, and the wet liquid is directly impregnated with a concentrated tea solution by spraying or the like. It can be manufactured by sending to a drying cylinder and drying. However, in the dry nonwoven fabric manufacturing process and the wet nonwoven fabric manufacturing process, it is also possible to apply the tea concentrated liquid by spraying or the like to the nonwoven fabric dried through the drying section, and send it to a drying cylinder and dry it. it can. In the dry nonwoven fabric manufacturing process, for example, a concentrated tea solution may be applied or impregnated by spraying or the like to a web bonded by a hot melt bonding method or a thermal bonding method, and then dried by sending it to a heat treatment machine. it can.

  In the wet nonwoven fabric manufacturing process, in order to make the amount of tea applied to the nonwoven fabric uniform, a concentrated tea solution is sprayed directly onto the wet nonwoven fabric or the dried nonwoven fabric. When the concentrated tea liquid is sprayed directly onto a damp nonwoven fabric, the resulting nonwoven fabric may cause pinholes and other problems. It is preferable to spray the concentrate. Such a sprayed part is a period during which the nonwoven fabric is dehydrated and sent to the drying roll from the part transferred to the dry part by the pick-up roll. The concentration of dissolved substances in tea is evenly distributed.

  In the present invention, the tea impregnated in the non-woven fabric is separated by filtration from the solid matter of the extraction residue such as tea husk in order to prevent clogging of the nozzle of the sprayer. In the present invention, tea or tea concentrate can be blended with a printing ink composition to form a printing ink, or an appropriate colorant can be blended with this printing ink to form a color ink for printing. be able to. In the case of color ink for printing, desired patterns and characters can be printed on the surface of water-absorbing paper members in general. For example, decorative patterns, and patterns and characters for commercial advertising can be printed on water-absorbing paper members. Can be printed.

  The concentration of dissolved substances of the tea concentrate to be impregnated into the non-woven fabric, or the concentration of dissolved tea and the concentrated liquid of tea, for example, is measured with a saccharimeter or the like, or the total solid content is measured to obtain the dissolved substance concentration Accordingly, the amount contained by spraying with a sprayer or printing with a printing machine can be adjusted to adjust the amount of tea contained in the nonwoven fabric by application or the like, or the dissolved substance of tea and tea. The amount of the tea-dissolving substance impregnated into the nonwoven fabric or the amount of the tea and tea-dissolving substance can be appropriately changed so that the effect of suppressing the growth of bacteria can be exhibited, and the effect of extinguishing and deodorizing can be exhibited. .

  Here, one or more dried tea (dissolved substance) contained in the nonwoven fabric after being dried is dissolved in one or more concentrated tea liquids. By the concentration treatment, the dissolved substance concentration of tea can be increased to, for example, about 6% in terms of Brix concentration, but is diluted to, for example, Brix concentration of 1% in order to smoothly perform operations such as spraying. In the present invention, in order to impregnate a nonwoven fabric with a large amount of dissolved substance, when the dissolved substance concentration is the same, the nonwoven fabric is made of tea in the nonwoven fabric by the same or different method over a plurality of times or at a plurality of locations. A concentrated solution can be applied.

  Since dissolved substances present in tea leaves and tea husks are relatively easy to extract, they can be extracted with hot water in a relatively short time. However, the extraction time is 5 to 60 minutes in hot water at 95 ° C., and during this time, when boiling or boiling in hot water at 95 ° C. or higher, for example, 10 to 20 minutes, the dissolved substance is high. It can be extracted by concentration. Tea can be obtained by starting extraction with hot water at 95 ° C., which is not more than 10 times the weight of tea leaves and / or tea shells, and simmering until the liquid volume becomes 3/4. The tea extract produced in this way varies depending on, for example, the size and shape of the tea leaves and the extraction conditions, but the sugar content is 4 to 6 percent Brix.

In the case of such a tea concentrate, a concentrated solution of dissolved material 1 wt% or more tea, as the standard case basis weight of the nonwoven fabric 18 g / m ^2, the nonwoven fabric 1 m ² per 10 ml or more, preferably It can be produced by impregnating a nonwoven fabric with an amount of 30 ml or more, more preferably 50 ml or more, by spraying or the like and then drying. For example, the nonwoven fabric can be produced by spraying 10 to 20 ml, preferably 20 to 30 ml, per 1 m ^{2 of} the nonwoven fabric.

  The tea leaf extract or tea husk extract obtained by extracting tea leaves and / or tea husks by boiling with hot water is subjected to a centrifuge to remove the extraction residue. The supernatant liquid from which the tea husk has been removed is evaporated by heating, for example, until the liquid volume becomes 3/4 or less, and for example, the concentration of tea is measured by a refractometer and concentrated to about 6% Brix. For example, the concentrated green tea concentrate is diluted to a dissolved substance concentration that is easy to spray, such as Brix 2%, and adjusted for spraying.

  In the present invention, the non-woven fabric is similar to the conventional non-woven fabric, for example, paper towels, skin-wearing fabrics, sheets for bedding, masks, eye masks, head covers for seats, pillow covers, packaging materials, packaging materials for transporting fresh fish, and vegetable transportation It can be used as an absorbent material for packaging materials. In the present invention, the non-woven fabric includes a relatively porous non-woven fabric, and can be produced by a wet method or a dry method as in the case of a conventional non-woven fabric. In the present invention, the non-woven fabric, like conventional non-woven fabrics, bedding sheets, masks, eye masks, head covers for seats, pillow covers, paper diapers, animal paper diapers, sanitary napkins, sanitary napkins for animals, milk pads, sweat It can be used as a surface material for an absorbent body such as a pad, an incontinence pad, an animal sheet, an absorbent for transporting fresh fish, or an absorbent for transporting vegetables.

In the present invention, the nonwoven fabric is organic fiber, organic fiber waste material, organic waste or fiber waste, or two or more of the organic fiber, organic fiber waste material, organic waste and fiber waste. Can be formed.
In the present invention, the nonwoven web is an organic fiber such as cotton, wool, pulp, polypropylene fiber, polyethylene fiber, nylon fiber, vinylon fiber, polyester fiber, viscose rayon fiber or cupra rayon fiber as in the case of conventional nonwoven fabrics. Or two or more of these organic fibers can be entangled to form the organic fibers. In the present invention, the nonwoven web can be formed by adding organic fiber waste material to organic fibers and entangled with them. Such organic fiber wastes include cotton waste, wool waste, pulp waste, polypropylene fiber waste, polyethylene fiber waste, nylon fiber waste, vinylon fiber waste, polyester fiber waste, viscose rayon fiber waste or cupra rayon fiber waste, Or there are two or more organic fiber waste materials among these organic fiber waste materials.

  In the present invention, the nonwoven fabric body containing one or more dried tea products is one or more organic fibers or one or more organic fibers and one or more organic fiber waste materials, or one or more organic fibers or one or more organic fibers. Formed from a mixture of fiber and one or more organic fiber waste materials plus one or more organic wastes or one or more fiber wastes or one or more organic wastes and one or more fiber wastes. be able to.

  In the present invention, organic fibers, organic fiber waste materials, or organic fibers and organic fiber waste materials can be used to form so-called water-absorbing fibers by forming a nonwoven fabric in a dry manner and adding a water-absorbing resin to form a single body. In addition, in this case, in addition to this, the water-absorbing fiber is an organic fiber or organic fiber waste material, or a mixture thereof, an organic waste or a fibrous waste, or an organic waste and a fibrous waste. By a dry method in which a water-absorbing resin is added and the web is bonded by a hot melt bonding method, a heat bonding method, or the like, the nonwoven fabric can be formed integrally to form a water-absorbing fiber.

  Nonwoven fabrics such as water-absorbent fibers form a dry web because they contain a water-absorbent resin. Examples of organic waste include milk pad waste, incontinence pad waste, paper diaper waste, animal paper diaper waste, sanitary napkin waste, sweat pad waste, animal sheet waste, animal sanitary napkin waste, fresh fish transport absorbent waste Or the waste material which has an absorber like the absorber waste material for vegetable transport etc. can be used. Such a waste material contains polyethylene, polypropylene, rayon, and a synthetic rubber material together with pulp and a water-absorbing resin, contains pulp as a fiber material, and also contains a water-absorbing resin. It can grind | pulverize to the following particle sizes, Preferably, it is a 1 mm or less particle size, and can use it as raw materials for nonwoven fabric formation, such as a water absorbing fiber. In addition, the pulverized waste paper diaper and sanitary napkin waste material thus classified are classified into a part rich in plastics and a part rich in paper powder and superabsorbent resin by a classifier, and these classified products are appropriately used. For example, it can be formed by a dry method to form a nonwoven fabric.

In the case of forming such a nonwoven fabric, the water-absorbing resin means a defective water-absorbing resin, a highly water-absorbing resin waste material, a water-absorbing resin having a relatively low water-absorbing performance, and a high water-absorbing resin having a high water-absorbing performance. However, it is preferable to use a highly water-absorbing material because the amount of water-absorbing resin used can be reduced.
In the present invention, in the dry method and the wet method, the organic fiber or the organic fiber waste material, or the organic fiber and the organic fiber waste material can be used as a raw material of the nonwoven fabric, that is, a raw material. Organic fiber or organic fiber waste material, or organic fiber and organic fiber waste material is used as a nonwoven fabric material by mixing organic waste or fiber waste, or organic waste and fiber waste can do. Organic fibers, organic fiber waste materials, organic wastes and fibrous wastes used in the production of nonwoven fabrics may be supplied separately through different supply channels, but they are mixed in advance to form a mixture. You may supply with. Even when the water-absorbing resin is not used as a raw material or when the water-absorbing resin is used as a raw material, the nonwoven fabric can be produced by dry or wet processing.

Fiber waste used in the wet process includes mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, waste paper pulp waste, wood powder, paper powder, titanium paper waste or punch waste A combination of two or more of the quality wastes or these fibrous wastes can be used as a nonwoven fabric material.
Fiber waste materials used in the dry process include mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, waste paper pulp waste, wood powder, paper powder, titanium paper waste, punch scraps, and paper diaper waste A sanitary napkin waste material, a milk pad waste material or an incontinence pad waste material, or a combination of two or more types can be used as a nonwoven fabric material.

For example, organic wastes used in the wet process include organic waste such as toilet paper waste, tissue paper waste, bedding sheets waste, mask waste, eye mask waste, seat head cover waste, pillow cover waste, or toilet seat waste Or a combination of two or more of these organic wastes can be used as a non-woven fabric material. Needless to say, individual organic wastes or individual fibrous wastes or a combination of two or more kinds of wastes can be used as a nonwoven fabric material. Organic waste and fibrous waste are pulverized to a particle size of 3 mm or less, preferably 1 mm or less, to form a nonwoven fabric material.
Also, in the dry method, organic waste materials used in the same way include toilet paper waste, tissue paper waste, bedding waste, mask waste, eye mask waste, seat head cover waste, pillow cover waste, diaper waste, and paper diaper waste. , Toilet seat sheet waste, animal paper diaper waste material, sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad waste material, animal sheet waste material, absorbent waste material for transporting fresh fish or vegetable transport absorption A waste material or a combination of two or more of these can be used as a nonwoven fabric material. Organic waste and fibrous waste are pulverized to a particle size of 3 mm or less, preferably 1 mm or less, to form a nonwoven fabric material.

In the present invention, the paper powder used in the case of making a nonwoven fabric excluding the water absorbent resin is a powdery paper, and is a paper powder not containing the water absorbent resin. There are paper powders such as paper powders generated during bookbinding, paper powders generated during the manufacture of nonwoven fabrics, paper powders generated in the papermaking process, and dust collection loss paper powders.
In this nonwoven fabric, the paper powder used in the dry process is powdered paper, and may also contain a water-absorbing resin. For example, paper powder generated during bookbinding, paper generated during nonwoven fabric manufacture Manufacturing of pads and sanitary materials such as powder, paper dust generated in the papermaking process, and dust collection loss, as well as paper diapers, sanitary napkins, shoulder pads, bust pads, hip pads, incontinence pads, milk pads or sweat pads Paper powder containing a highly water-absorbent resin that is sometimes generated.

In the present invention, the non-woven fabric contains 0.1 g or more of dried tea per square meter of non-woven fabric based on a non-woven fabric having a basis weight of 18 g / m ^2. Even when moist, it is excellent in water absorption, prevents bacterial growth, and can maintain a hygienic state for a long time.
In this way, the present invention includes components that are harmful to disposal contained in the tea shells of oolong tea, black tea or green tea, which are generated in large quantities in tea manufacturing industry such as canned or packed oolong tea, black tea or green tea. By utilizing this, it is possible to provide a non-woven fabric that can be kept in a good condition for a long time even when the hygienic condition is wet by sweat or the like.
Further, in the present invention, one or more tea concentrates manufactured using waste are applied to one surface of a nonwoven fabric, and the nonwoven fabric coated with the concentrate is dried to obtain the dried tea product. Therefore, a nonwoven fabric with a remarkably good sanitary condition at the time of use can be manufactured at a relatively low cost by using waste.

Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following descriptions and examples.
FIG. 1 is a schematic process diagram showing an outline of a process for producing a nonwoven fabric by a circular net-making method in a wet nonwoven fabric production process according to an embodiment of the present invention.

  In the embodiment shown in FIG. 1, a circular net 3 is rotatably provided in a papermaking tank 2 into which a dilute suspension 1 for making a nonwoven fabric of organic fibers such as plastic fibers and adhesives flows. ing. At the time of papermaking, plastic fibers are sucked into the circular mesh 3 rotating in the papermaking tank 2, and a web (thin layer) 4 is formed on the circular mesh 3. In this example, an endless first blanket 5 is stretched over the circular net 3, and a couch roll 6 is provided on the downstream side of the circular net 3. The thin layer 4 formed in the papermaking tank 2 and formed on the circular net is squeezed by the couch roll 6 and sucked to move onto the first blanket 5 to form the nonwoven fabric layer 7. The first blanket 5 is further stretched over the suction box 8 and the press roll 9, and is guided by the guide roll 10 to form a circulation path reaching the circular net 3. The nonwoven fabric layer 7 formed on the first blanket 5 by the couch roll 6 is dehydrated by the suction action of the suction box 8 while moving along with the first blanket 5 while being guided by the guide roll 10.

  The nonwoven fabric layer 7 dehydrated in the suction box 9 is sent to the place where the pickup roll 11 is provided on the press roll 9, where it is squeezed and dehydrated by the press roll 9 and the pickup roll 11. The wet nonwoven fabric 12 that has been squeezed and dehydrated is pulled away from the first blanket 5 by the suction action of the pickup roll 11 and transferred to the second blanket 15 that is stretched over the pickup roll 11, the guide roll 13, and the touch roll 14. It is. The wet nonwoven fabric 12 moves together with the second blanket 15 and is sent to a large-diameter drying cylinder 16 rotatably provided above the touch roll 14, where it is dried to form a nonwoven fabric 17. . In this example, the tea concentrate sprayer 18 is provided toward the spraying spot 19 provided behind the pickup roll 11 so as to spray onto the wet nonwoven fabric 12 immediately before being dried by the drying cylinder 16. ing. In this example, the tea concentrate is wetted on the second blanket 15 on the spraying point 19 from a plurality of nozzles of the sprayer 18 (only one nozzle is shown schematically, the other nozzles are not shown). Sprayed onto the non-woven fabric 12. The wet nonwoven fabric 12 sprayed with the concentrated tea liquid is separated from the second blanket 15 by the touch roll 14, wound around the drying cylinder 16, moved, and dried. In this example, the wet nonwoven fabric 12 sent to the tea concentrate spray point 18 had a moisture content of about 60% by weight.

  In this example, after the nonwoven fabric layer 7 is separated, the first blanket 5 is sent to the first cleaning step 21 on the wire part side with a plurality of washing water jet nozzles 20 and cleaned with clean water. And sent to the couch roll 6. In this example, the first cleaning step 21 is provided with a pair of press rolls 22 and 23 before and after the first cleaning step 21, and the first blanket 5 is first a press roll upstream of the first cleaning step 21. 22 is dehydrated and sent to the first cleaning step 21, the cleaning liquid is jetted from the cleaning liquid jet nozzle 20, and then dehydrated by the press roll 23 on the downstream side of the first cleaning step 21 and sent to the couch roll 6. It is done. A tension adjusting roll 24 is provided in the first cleaning process 21 of the first blanket 5 on the wire part side, and the tension of the first blanket 5 passing through the first cleaning process 20 is adjusted by the tension adjusting roll 24. To do.

  In this example, a pair of press rolls 25 is provided on the dry part side. The second blanket 15 on the dry part side that is fed from the pick-up roll 11 and conveys the wet nonwoven fabric 12 is separated from the wet nonwoven fabric 12 by the touch roll 14 by the drying cylinder 16, and the separated wet nonwoven fabric is the drying cylinder. 16 and dried. On the other hand, the second blanket 15 from which the nonwoven fabric has been separated is sent to the press roll 25, dehydrated under pressure, and sent again to the pickup roll 11. The second blanket 14 on the dry part side is provided with tension adjusting rolls 26, 27 and 28, so that the tension of the blanket fed by the nonwoven fabric can be adjusted.

  Since the paper making apparatus of this example is configured as described above, the fibers are sucked into the circular mesh 3 that is arranged in the paper making tank 2 and rotates in the direction of the arrow 29, and a thin layer ( Web) 4 is formed. The thin layer 4 formed on the circular net 3 is sucked in contact with the couch roll 6 rotating in the direction of the arrow 30, placed on the first blanket 5 moving in the direction of the arrow 31, and sucked from the guide roll 10. It is sent to the box 8 for suction dehydration. The thin layer 4 sucked and dehydrated in the suction box 8 is sent to the press roll 9 that rotates in the direction of the arrow 32, contacts the pickup roll 11 that rotates in the direction of the arrow 33, and is sucked by the pickup roll 11. It is squeezed and dehydrated to become a wet nonwoven fabric, sucked by the pick-up roll 11 and pulled away from the press roll 9. The wet nonwoven fabric pulled away from the press roll 9 is conveyed from the pick-up roll 11 by the second blanket 15 moving in the direction of the arrow 35 and sent to the sprayed portion 19 of the tea concentrate. The wet nonwoven fabric sent to the tea concentrate spray point 19 is then sprayed with the tea concentrate from the tea concentrate sprayer, and the wet nonwoven fabric sprayed with the tea concentrate is the second blanket. 15 is transported to the touch roll 14, wound around the drying cylinder 16 rotating in the direction of the arrow 35, heated and dried by the drying cylinder 16 to become the nonwoven fabric 17, and taken out from the drying cylinder and wound up. On the other hand, the second blanket 15 having the wet nonwoven fabric wound around the drying cylinder 16 moves in the direction of the arrow 34, dehydrated by the press roll 25, and sent to the pickup roll 11 again.

  In this example, a dry tea product is contained in a non-woven fabric, and a concentrated tea solution is sprayed on a wet non-woven fabric. The tea concentrate may be sprayed simultaneously in the form of a mixture, or multiple tea concentrates may be sprayed separately onto the nonwoven.

Example 1
Add 25 liters of water to 2 kg of green tea leaves, heat and boil in boiling water at 95 ° C for 10 minutes, centrifuge the whole amount, centrifuge the green tea extraction residue (tea husk), Produced 19 liters of Brix 4.8% green tea extract. This extract was put into a green tea extract collection tank.

Example 2
Add 21 liters of water to 2 kg of green tea leaves, heat and simmer in boiling water at 95 ° C for 10 minutes, centrifuge the entire amount, centrifuge the green tea extraction residue (tea husk), Produced 15 liters of Brix 4.0% green tea extract. This extract was added to the green tea extract collection tank containing the green tea extract of Example 1.

Example 3
Add 21 liters of water to 2 kg of green tea leaves, heat and simmer in boiling water at 95 ° C for 10 minutes, centrifuge the whole amount, centrifuge the green tea extraction residue (tea husk), and extract the green tea extract 15 liters were obtained. This extract was added to the green tea extract collection tank in which the green tea extract of Example 1 and Example 2 was placed. The total amount of the green tea extract placed in the green tea extract collection tank was 49 liters, and the dissolved substance concentration of the green tea was Brix 5%.
According to the antibacterial activity test on the green tea concentrate of this example, the bacterial growth inhibitory effect on bacteria of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella, Streptococcus and Legionella after 48 hours and 72 hours. Was seen.
Analytical test items and measurement results of the concentrated green tea extract were as follows.
Table 1. Analysis test item Analysis result Protein 0.3g / 100g
Lipid 0.1g / 100g
Ash content 0.5g / 100g
Anhydrous caffeine 0.27g / 100g
Phosphorus 19.0mg / 100g
Iron 0.39mg / 100g
Calcium 34.5mg / 100g
Potassium 209mg / 100g
Niacin 0.80mg / 100g
Tannin (as tannic acid) 1.37g / 100g
Catechin 50mg / 100g
Quercetin 2.0mg / 100g
Zinc 245g /
In addition, the dissolved substance density | concentration of the green tea in the green tea of a commercial drink was Brix0.2%.

Example 4
The green tea concentrate prepared in Example 3 was used as a green tea concentrate for spraying onto a nonwoven fabric. In the nonwoven fabric manufacturing process, this concentrated green tea concentrate for spraying the nonwoven fabric was sprayed onto the wet nonwoven fabric (water content 60%) transferred to the dry part side with a pick-up roll at a rate of 7 ml per 1 m ^{2 of} nonwoven fabric. The nonwoven fabric sprayed with the green tea concentrate was dried in a drying cylinder. The nonwoven fabric obtained by drying contained 0.28 g of dried green tea per 1 m ^{2 of} nonwoven fabric.

Example 5
Add 30 liters of water to 3 kg of tea leaves, boil in boiling water at 96 ° C. for 15 minutes, centrifuge the whole amount of this boiled liquid, and centrifuge the tea extraction residue (black tea leaves) Then, the first black tea extract with a dissolved substance concentration of Brix of 4.0% obtained in this step is put into a black tea extract collection tank, and then 21 liters of water is added to 2 kg of fresh black tea leaves and heated to 96 ° C. Boil in boiling water for 15 minutes, centrifuge the whole amount of the boiled liquid, centrifuge the extraction residue of black tea, and obtain the second black tea extract obtained here in the first black tea extract collection tank In addition to a black tea extract, add 30 liters of water to 3 kg of fresh tea leaves, heat and simmer for 10 minutes in boiling water at 96 ° C., and centrifuge the entire amount of the simmered tea to extract black tea. The residue was centrifuged and the third obtained here Added tea extract to the first and second black tea extract of black tea juice collection tank, the black tea juice collection tank, dissolved substance concentration tea to obtain black tea extract solution 50 liters of Brix5%.
According to the antibacterial activity test on the black tea concentrate of this example, the bacterial growth inhibitory effect was observed for Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus and Legionella after 48 hours and 72 hours. It was.
The analytical test items and measurement results of this black tea extract were as follows.
Table 2. Analysis test item Analysis result Protein 0.4g / 100g
Lipid 0.2g / 100g
Ash content 0.5g / 100g
Anhydrous caffeine 0.27g / 100g
Lipid 0.2g / 100g
Ash content 0.5g / 100g
Phosphorus 19.0mg / 100g
Iron 0.12mg / 100g
Calcium 3.5mg / 100g
Potassium 201mg / 100g
Niacin 0.69mg / 100g
Tannin (as tannic acid) 1.29g / 100g
Catechin 15mg / 100g
Quercetin 4.4mg / 100g
Zinc 535μg / 100g
In addition, the dissolved substance density | concentration of the black tea in the commercially available black tea was Brix0.8%.

Example 6
The black tea concentrate prepared in Example 5 was concentrated into green tea for spraying onto a nonwoven fabric. The concentrated black tea liquid for spraying the nonwoven fabric was sprayed at a rate of 7 ml per 1 m ² of the nonwoven fabric on the wet nonwoven fabric (water content 60%) transferred to the dry part side with a pick-up roll in the nonwoven fabric manufacturing process. The nonwoven fabric sprayed with the tea concentrate was dried in a drying cylinder. The non-woven fabric obtained by drying contained 0.28 g of a dried tea product per 1 m ^{2 of} non-woven fabric.

  In the present invention, the tea concentrate is applied to a non-woven fabric, and the non-woven fabric coated with the tea concentrate is dried, so that the amount of tea applied can be reduced to contain the dried tea product in the non-woven fabric. Less. Since the non-woven fabric of the present invention contains a dried tea product, the smell of sweat and the like can be suppressed, moisture due to sweating, and bacterial growth can be suppressed. It is possible to provide a sanitary product that can be maintained and can be maintained in a sanitary good state. The present invention also provides a dried tea product, for example, a tea husk containing residual waste, which is generated during the production of canned and packed tea, for example, canned and packed oolong tea, green tea, and black tea. It can be used as a raw material and can be used effectively.

In the present invention, a dried tea product can be contained in a nonwoven fabric, so that the growth of bacteria at the time of using the nonwoven fabric can be suppressed at a relatively low cost. Residual drainage can be used effectively.
Therefore, according to the present invention, since tannin and the like are separated and removed from the tea husk, it can be discarded, and the tea husk that could not be used effectively due to components such as tannin in the residual waste liquid is effectively removed. It can be utilized, and it is not necessary to perform the tea shell treatment by activated sludge treatment or the like, and the extraction residue treatment step can be omitted in a beverage manufacturing plant such as canned or packed tea.

It is a typical process figure showing the outline of the manufacturing process of the nonwoven fabric by the circular net-making method of the wet nonwoven fabric manufacturing process of one example of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dilute suspension of plastic fiber 2 Papermaking tank 3 Circular net 4 Thin layer 5 First blanket 6 Couch roll 7 Nonwoven fabric layer 8 Suction box 9 Press roll 10 Guide roll 11 Pickup roll 12 Wet nonwoven fabric 13 Guide roll 14 Touch roll 15 Double blanket 16 Drying cylinder 17 Non-woven fabric 18 Sprayer 19 Spray location 20 Washing water injection nozzle 21 First cleaning steps 22, 23 and 25 Press rolls 24, 26, 27 and 28 Tension adjusting rolls 29, 30, 32, 33 and 35 Direction of rotation 31 and 34 Direction of movement

Claims (8)

Nonwoven fabric formed from a mixture of organic fiber waste material, organic waste or fiber waste or organic waste and fiber waste, and superabsorbent resin has a basis weight of 18 g / m ² A non-woven fabric characterized by containing 0.1 g or more of dried tea per square meter of non-woven fabric based on the non-woven fabric.   Organic fiber waste is cotton waste, wool waste, pulp waste, polypropylene fiber waste, polyethylene fiber waste, nylon fiber waste, vinylon fiber waste, polyester fiber waste, viscose rayon fiber waste or cupra rayon fiber waste, or among these The nonwoven fabric according to claim 1, comprising two or more kinds.   Fiber waste is mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, wood pulp waste, waste paper pulp waste, wood waste, sawdust, wood powder, house demolition, new construction waste, paper Fluff pulp of powder, titanium paper waste, punch waste, sanitary ware waste classification products, water absorbent fiber waste, water absorbent resin waste, paper powder containing water absorbent resin, paper dust generated during bookbinding, and non-woven fabric production The nonwoven fabric according to claim 1, comprising paper powder, paper powder generated in a papermaking process, paper powder generated during the manufacture of sanitary materials, or two or more of them.   Organic waste includes toilet paper waste, tissue paper waste, bedding sheets waste, mask waste, eye mask waste, seat head cover waste, pillowcase waste, toilet seat sheet waste, diaper waste, paper diaper waste, animal paper diaper waste, Sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad waste material, animal sheet waste material, water absorbent waste material for transporting fresh fish or water absorber waste material for vegetable transport, or two of these The nonwoven fabric according to claim 1, comprising the above. A non-woven fabric produced by a wet or dry process and formed from a mixture of organic fiber waste material, organic waste or fiber waste or organic waste and fiber waste, and superabsorbent resin By applying a concentrated tea solution and drying, the non-woven fabric contains 0.1 g or more of dried tea per square meter of non-woven fabric based on a non-woven fabric having a basis weight of 18 g / m ^2. The manufacturing method of the nonwoven fabric characterized. Organic fiber waste is cotton waste, wool waste, pulp waste, polypropylene fiber waste, polyethylene fiber waste, nylon fiber waste, vinylon fiber waste, polyester fiber waste, viscose rayon fiber waste or cupra rayon fiber waste, or among these The method for producing a nonwoven fabric according to claim 5 , comprising two or more types. Organic waste includes toilet paper waste, tissue paper waste, bedding sheets waste, mask waste, eye mask waste, seat head cover waste, pillow cover waste, diaper waste, paper diaper waste, toilet seat waste, animal paper diaper waste, Sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad waste material, animal sheet waste material, water absorbent waste material for transporting fresh fish or water absorber waste material for vegetable transport, or two of these The method for producing a nonwoven fabric according to claim 5 , comprising the above. Fiber waste is mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, wood pulp waste, waste paper pulp waste, wood waste, sawdust, wood powder, house demolition, new construction waste, paper Fluff pulp of powder, titanium paper waste, punch waste, sanitary ware waste classification products, water absorbent fiber waste, water absorbent resin waste, paper powder containing water absorbent resin, paper dust generated during bookbinding, and non-woven fabric production The method for producing a nonwoven fabric according to claim 5 , including paper dust, paper dust generated in the papermaking process, paper dust generated during the manufacture of sanitary materials, or two or more of these.

Images