JP2022147073A - Method for producing bacteriostatic tissue product and bacteriostatic tissue product - Google Patents

Abstract

To provide a method for producing a bacteriostatic tissue product having a high bacteriostatic effect and a bacteriostatic tissue product.SOLUTION: A method for producing a bacteriostatic tissue product includes a coating step for coating base paper of tissue with a chemical solution comprising a reinforcement agent which is a viscous liquid for improving the strength of the base paper, and an antibacterial agent which is a liquid having a disinfecting effect.SELECTED DRAWING: Figure 3

Description

Applied for the application of Article 30, Paragraph 2 of the Patent Law Published on March 9, 2021 at Yamataka Shoji Co., Ltd. (6-26-2 Kashimacho, Gifu City, Gifu Prefecture). Published on March 22, 2021 at the Hiroshima Bank Mishima Branch (1-7-34 Mishimachuo, Shikokuchuo City, Ehime Prefecture).

The present invention relates to a method for producing a bacteriostatic tissue paper product having bacteriostatic effect and the bacteriostatic tissue paper product.

Wet tissue paper is a non-woven fabric impregnated with an aqueous solution of alcohol, sodium hypochlorite, or the like, and can be used to remove stains by wiping the surface of the human body or equipment. In addition, for example, as shown in Patent Document 1 and Patent Document 2, there are wet tissue papers with a high sterilization (sterilization) effect, which are widely used as daily necessities because they can be easily sterilized in daily life. ing.

As with wet tissue paper, tissue paper is also widely used as daily necessities for wiping off dirt. Tissue paper is a thin and soft paper with properties of poor water solubility, and the degree of dryness and wetness is significantly different from that of wet tissue paper. Since tissue paper is used for blowing the nose in addition to the above applications, it can be said that the frequency of use is higher than that of wet tissue paper.

Japanese Patent Publication No. 2019-506402 Japanese Patent Application Laid-Open No. 2003-319887

However, at present, there are no tissue paper products with a high bacteriostatic effect (we could not physically manufacture them. Details will be described later.), and the bacteria attached to the used tissue paper There was a problem that it grew inside. In addition, in the so-called pop-up type tissue paper product, there is a problem that bacteria adhere to the tissue paper exposed to the outside of the package before use.

The present invention has been made in view of such conventional circumstances. One of the objects of the present invention is to provide a method for producing a bacteriostatic tissue paper product having a high bacteriostatic effect and the bacteriostatic tissue paper product.

Means for solving the problem and effects of the invention

The method for producing a bacteriostatic tissue paper product according to the first aspect of the present invention comprises a coating step of coating a base paper of tissue paper with a chemical solution comprising a reinforcing agent for increasing the strength of the base paper and an antibacterial agent. can contain. In general, when an antibacterial agent is simply applied to tissue paper, the tissue paper cannot retain its shape and decomposes. By coating together with the reinforcing material, it is possible to produce a bacteriostatic tissue paper product impregnated with a large amount of antibacterial agent.

In addition, the method for producing a bacteriostatic tissue paper product according to the second aspect of the present invention further comprises the aspect of selling the base paper of the tissue paper coated with the chemical solution in the coating step as a tissue paper product. A manufacturing process is included, and the coating process and the manufacturing process can be performed continuously by an apparatus. According to the above configuration, it is possible to reduce the number of times that a person touches the antibacterial tissue paper during the manufacturing process, or not to touch it at all. In other words, when the bacteriostatic tissue paper is commercialized, the number of bacteria held can be reduced, and the bacteriostatic effect does not increase the number of bacteria, so the user started using the bacteriostatic tissue paper product. At this point, the number of bacteria carried by the bacteriostatic tissue paper product can be significantly reduced.

Furthermore, in the method for producing a bacteriostatic tissue paper product according to the third aspect of the present invention, the reinforcing agent may have viscosity.

Furthermore, in the method for producing a bacteriostatic tissue paper product according to the fourth aspect of the present invention, the reinforcing agent may contain glycerin.

Furthermore, the bacteriostatic tissue paper product according to the fifth aspect of the present invention is characterized by being produced by the method for producing the bacteriostatic tissue paper product described above.

FIG. 10 is a table showing the results of an antibacterial test and a quantitative test of an antibacterial textile product to which Staphylococcus aureus was applied. FIG. Fig. 2 is a table showing the results of an antibacterial test and quantitative test of an antibacterial textile product to which Klebsiella pneumoniae was applied. BRIEF DESCRIPTION OF THE DRAWINGS It is a flowchart explaining the manufacturing method of the antibacterial tissue paper product which concerns on one embodiment of this invention. FIG. 4 is an explanatory view relating to an example of a folding machine used for carrying out the coating process and the folding process shown in FIG. 3; FIG. 5 is an explanatory diagram of the coating apparatus shown in FIG. 4;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present invention, and the present invention does not specify them as follows. In addition, this specification does not specify the members shown in the claims as the members of the embodiment. Unless otherwise specified, the dimensions, materials, shapes, relative arrangements, etc. of components described in the embodiments are not intended to limit the scope of the present invention, but are merely explanations. Just an example. Note that the sizes and positional relationships of members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same names and symbols indicate the same or homogeneous members, and detailed description will be omitted as appropriate. Furthermore, each of the elements constituting the present invention may be configured with the same member so that a single member can serve as a plurality of elements, or conversely, the function of one member can be It can also be realized by sharing.
(Problem in adding bacteriostatic effect to tissue paper)

Although tissue paper has properties of poor water solubility, it is not as water resistant as the non-woven fabrics used for wet tissue paper. For this reason, simply coating tissue paper with an antibacterial agent will not allow the tissue paper to retain its shape and will decompose.

In addition, a method of spraying an antibacterial agent on the tissue paper is conceivable so that the tissue paper does not decompose. However, the bacteriostatic tissue paper product produced by this method does not have a sufficient antibacterial agent content, and its effect is limited to a so-called antibacterial effect (cannot have a bacteriostatic effect).

The method for manufacturing a bacteriostatic tissue paper product described below can solve such problems and provide a bacteriostatic tissue paper product 1 having a high bacteriostatic effect.
(Bactericidal tissue paper product 1)

The bacteriostatic tissue paper product 1 produced by the method for producing a bacteriostatic tissue paper product according to one embodiment of the present invention comprises a plurality of bacteriostatic tissue papers 11 laminated in a so-called pop-up manner, and the bacteriostatic tissue paper 11 and a package 12 enclosing the Here, the pop-up method is a method of folding a tissue paper into a V-shaped cross section or a Z-shaped cross section so that the ends of vertically adjacent tissue papers are sandwiched between each other. With this method, when the uppermost layer of tissue paper is taken out from the outlet of the package, the end of the tissue paper located in the lower layer is pulled out from the outlet of the package, so that the tissue paper can be easily taken out continuously. It becomes possible.

In addition, the antibacterial tissue paper 11 is coated with a chemical solution obtained by mixing about 30% of the weight of the reinforcing material and about 2% of the weight of the antibacterial agent with respect to the weight of the base paper of the tissue paper. Has a fungal effect.
(reinforcing material)

The reinforcing material is a viscous liquid and accounts for about 94% of the drug solution. That is, the bacteriostatic tissue paper 11 uses a reinforcing material with a mass of about 30% of the mass of the base paper of the tissue paper. For the reinforcing material, for example, a lotion containing glycerin as a main component can be used.
(Antibacterial agent)

The antibacterial agent is a liquid having a sterilizing effect, and the antibacterial agent is used in an amount of about 2% by mass with respect to the mass of the base paper of the tissue paper. The antibacterial agent is, for example, a non-alcoholic preserving antibacterial agent. Moreover, the main component is, for example, benzeneconium chloride.

As described above, the antibacterial tissue paper 11 is coated with an antibacterial agent together with a viscous liquid reinforcing material on the base paper of the tissue paper, so that the antibacterial agent can be applied without decomposing the base paper of the tissue paper. can be sufficiently contained. Note that the proportions of the reinforcing material and the antibacterial agent in the chemical are not limited to those described above.
(Test for verifying bacteriostatic effect)

The applicant conducted an antibacterial test and a quantitative test of an antibacterial textile product based on JISL1902:2015, and verified the antibacterial effect of the antibacterial tissue paper 11 . Briefly, Staphylococcus aureus and Klebsiella pneumoniae are applied to the bacteriostatic tissue paper 11 and a standard cloth for comparison, and the number of viable bacteria is measured immediately after application and 18 hours after application. do. The results of the test are as shown in the tables of FIGS. The viable cell count was 20 or less both immediately after application and 18 hours after application (due to the operation of the test, calculation of 20 or less is not possible). From the above, it can be said that the bacteriostatic tissue paper 11 has a high bacteriostatic effect of reducing bacteria by at least 99.9%.
(Manufacturing method of bacteriostatic tissue paper product)

A method for manufacturing the bacteriostatic tissue paper product 1 according to one embodiment of the present invention will be described with reference to FIGS. 3 to 5. FIG.

As shown in FIG. 3, the manufacturing method of the bacteriostatic tissue paper product 1 includes a coating step in which a base paper of the tissue paper is coated with a chemical solution containing a reinforcing agent and an antibacterial agent for increasing the strength of the wide base paper. It includes ST1 and a commercialization step ST2 in which the base paper of the tissue paper coated with the chemical solution in the coating step ST1 is put into a form for sale as a tissue paper product. Further, the productization process ST2 includes a folding process ST21, a cutting process ST22, and a boxing process ST23 for packing a required number of antibacterial tissue papers 11 into one product box.

The coating step ST1 and the folding step ST21 are continuously performed using the folding machine 2 shown in FIG. 4 in order to improve productivity. The folding machine 2 includes a rewinding section 3 , a coating section 4 and a folding section 5 . The folding machine 2 uses two strip-shaped wide base papers W01 and W02 having a width corresponding to a plurality of product tissue papers and a length corresponding to a plurality of product tissue papers as base papers for tissue paper. These wide base-paper rolls W01 and W02 are wound into rolls to form wide-width base-paper rolls R01 and R02. Supported by

In the coating step ST1, the wide base papers W01 and W02 are simultaneously unwound from the wide base paper rolls R01 and R02 and supplied to the coating section 4 comprising the coating device C1 and the coating device C2 to form two wide base papers W01. , and W02, the chemical solution is applied to the surface of one wide base paper W01, and the chemical solution is applied to the back surface of the other wide base paper W02.

The coating unit 4 is composed of two coating devices C1 and C2, each of which includes a driven coating roller 41, a driven pressure roller 42 that applies pressure to the coating roller 41 during coating, The coating roller 41 is provided with a chemical solution coating bar 43 that applies the chemical solution over substantially the entire width of the coating roller 41 . The coating roller 41 and the pressing roller 42 have outer peripheral surfaces with a width slightly larger than the width of the wide base papers W01 and W02.

As shown in FIG. 5, the chemical application bar 43 includes a chemical storage chamber 431 for storing the chemical L, a bar body 433 extending across the entire width of the coating roller 41 having an opening 432 facing the coating roller 41, A downstream doctor blade 434 attached to the upper edge of the opening 432 of the main body 433, an upstream doctor blade 435 attached to the lower edge of the opening 432 of the bur main body 433, and left and right sides of the opening 432 of the bur main body 433. and a sealing material 436 attached to the rim. The distal end portions of the downstream doctor blade 434, the upstream doctor blade 435, and the sealing material 436 come into contact with the outer peripheral surface of the coating roller 41 during coating, and the contact between the coating roller 41 and the bar body 433 during coating. It is possible to prevent the chemical liquid L from leaking out from the gap. The upstream doctor blade 435 also serves to adjust the amount of the chemical liquid L applied to the outer peripheral surface of the application roller 41 .

In order to keep the amount of the chemical liquid L in the chemical liquid storage chamber 431 at the time of coating, the chemical liquid L stored in the tank 44 is supplied to the chemical liquid storage chamber 431 of the chemical liquid application bar 43 by operating the pump 451 and the flow rate adjustment valve 452 . When an appropriate amount of the chemical liquid L is supplied through the feed line 45 and the amount of the chemical liquid L stored in the chemical liquid storage chamber 431 is too large, the excess chemical liquid L is returned to the tank 44 through the return line 46. there is If the chemical solution L is applied to the coating roller 41 by the chemical solution application bar 43 in this manner, a tank having an opening on the upper side is provided below the coating roller 41, and the chemical solution in the tank is applied to the coating roller 41. By directly immersing the lower portion of the outer peripheral surface, compared with the case of applying the chemical solution, it is difficult for dust or the like to enter the chemical solution, and the space occupied by the coating machine can be reduced.

The wide base papers W01 and W02 supplied to the coating unit 4 are guided between the coating roller 41 and the pressure roller 42, and are coated on the surface of the coating roller 41 as they pass through the coating roller 41. The chemical solution L applied to the wide base papers W01 and W02 adheres to the wide base papers W01 and W02, so that the chemical solution L is applied to the wide base papers W01 and W02. The wide base papers W01 and W02 coated with the chemical solution L become the chemical solution coated base papers W11 and W12, which are supplied to the folding section 5 while maintaining the required tension.

In the folding step ST21, the chemical-coated base papers W11 and W21 are cut into lengths corresponding to the length of the product tissue paper to form cut wide sheets S11 and S12, and the cut wide sheets S11 and S12 are stacked in a pop-up manner. In this manner, the back surface of the cut wide sheet S11 and the front surface of the cut wide sheet S12 are opposed to each other and overlapped with a predetermined distance in the longitudinal direction. Fold together in a zigzag pattern. The cut wide sheets S11 and S12 are overlapped and folded to form a folded wide sheet S2.

The folding unit 5 for carrying out the folding step ST21 consists of a known folding device, and as shown in FIG. a pair of folding rollers 51a and 51b, cutting rollers 52a and 52b having cutting blades 52, and push-down members 53a and 53b for peeling the wide folded sheet S2 from the outer peripheral surfaces of the folding rollers 51a and 51b.

The folding rollers 51a and 51b are in contact with each other and rotate in opposite directions as indicated by the arrows. It is cut by the cutting blade 52 on the upstream side of the position. The folding rollers 51a and 51b and the push-down members 53a and 53b are constructed and operated in the same manner as those disclosed in, for example, Japanese Utility Model Laid-Open No. 60-101122, so detailed description thereof will be omitted.

The wide folded sheet S2 peeled off from the folding rollers 51a and 51b by the push-down members 53a and 53b moves along the guide 54 onto the support base 55. As shown in FIG.

In the cutting step ST22 shown in FIG. 3, the wide folded sheet S2 is cut to the same width as the bacteriostatic tissue paper 11. As shown in FIG. As a result, the folded wide sheet S2 becomes the bacteriostatic tissue paper 11.例文帳に追加

In order to cut the wide folded sheets S2 into the same width as the bacteriostatic tissue paper 11, the wide folded sheets S2 moved to the support stand 55 shown in FIG. The sheets are loaded on the conveyor, supplied to a known cutting device (not shown), and automatically cut at once by the cutting device for each number of sheets to be boxed. After that, the bacteriostatic tissue paper 11 is conveyed to a boxing device by a conveyor, and automatically packed into a product box by the boxing device.

INDUSTRIAL APPLICABILITY As described above, in the method for producing a bacteriostatic tissue paper product according to the present invention, the base paper of the tissue paper is coated with an antibacterial agent together with a reinforcing material that is a viscous liquid. It is possible to sufficiently contain the antibacterial agent without decomposing the antibacterial agent, and to provide a bacteriostatic tissue paper product impregnated with a large amount of the antibacterial agent.

In addition, since the number of times that a person touches the bacteriostatic tissue paper 11 can be reduced or prevented from being touched at all during the manufacturing process, the bacteriostatic tissue paper 11 was commercialized and became the bacteriostatic tissue paper product 1. It is possible to reduce the number of bacteria possessed at the time. As a result, since bacteria do not increase due to the bacteriostatic effect, the number of bacteria possessed by the bacteriostatic tissue paper product can be reduced as much as possible when the user starts using the bacteriostatic tissue paper product 1. .

REFERENCE SIGNS LIST 1 Antibacterial tissue paper product 11 Antibacterial tissue paper 12 Wrapping body 2 Folding machine 3 Unwinding unit; Chemical solution application bar; 431 Chemical solution storage chamber; 432 Opening; 433 Bar body; 434 Downstream doctor blade; 435 Upstream doctor blade; 452... Flow control valve 46... Return pipe line 5... Folding parts 51a, 51b... Folding roller 52... Cutting blades 52a, 52b... Cutting rollers 53a, 53b... Depressing member 54... Guide 55... Support base ST1... Coating process ST2 ST21 Folding process ST22 Cutting process ST23 Boxing process C1, C2 Coating device L Chemical solutions R01, R02 Wide base paper rolls W01, W02 Wide base paper W11, W12 Chemical solution coated base paper S11 , S12... Cutting wide sheet S2... Folding wide sheet

Claims (5)

A method for producing a bacteriostatic tissue paper product having a bacteriostatic effect, comprising:
A method for producing a bacteriostatic tissue paper product, comprising a coating step of coating a base paper of tissue paper with a chemical solution comprising a reinforcing agent for increasing the strength of the base paper and an antibacterial agent. A method of making the bacteriostatic tissue paper product of claim 1, further comprising:
including a commercialization step of converting the base paper of the tissue paper coated with the chemical solution in the coating step into a form for selling as a tissue paper product,
A method for producing a bacteriostatic tissue paper product, wherein the coating step and the commercialization step are continuously performed by an apparatus. A method for producing the bacteriostatic tissue paper product according to claim 1 or claim 2,
A method for producing a bacteriostatic tissue paper product, wherein the reinforcing agent is viscous. A method for producing the bacteriostatic tissue paper product according to any one of claims 1 to 3,
A method for producing a bacteriostatic tissue paper product, wherein the reinforcing agent comprises glycerin. A bacteriostatic tissue paper product manufactured by the method for producing a bacteriostatic tissue paper product according to any one of claims 1 to 4.

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