KR101329544B1 - Method for producing sanitary thin paper for home and its production facility - Google Patents

Abstract

Provided are a method for producing household hygienic thin paper paper, which is coated with two kinds of chemical liquids efficiently, and a production efficiency thereof, and a production facility thereof.

A method of manufacturing a household hygiene thin paper, in which a continuous liquid sheet is applied from two or more ply rolls of fabric rolls, and the chemical liquid is continuously applied to the continuous sheet by roll transfer, and then rolled up again and commercialized in a separate process. The sheet of the layer and the sheet of the other layer are separated and unrolled, respectively, and different chemical liquids are applied to the sheet of the predetermined layer and the sheet of the other layer, and then these coated sheets are again joined and again. Wind up

Hygienic thin paper, tissue paper, cloth roll, coating device, continuous sheet

Description

TECHNICAL FOR PRODUCING SANITARY THIN PAPER FOR HOME AND ITS PRODUCTION FACILITY

The present invention relates to a method for producing household hygienic thin paper and its production equipment.

Conventionally, household hygiene, such as high-quality tissue paper (called wet type, dry-type tissue paper, wet paper, etc.) for general-purpose tissue paper which softens the touch by containing so-called lotion chemical liquid. The leaf paper is known.

As a method of apply | coating a chemical | medical solution to this sheet (fiber web), the method of spraying a chemical | medical solution, immersing in a chemical | medical solution, or applying a chemical | medical solution with a coating roll, for example is employ | adopted. As a method by a coating roll, the method of apply | coating a lotion chemical solution simultaneously to both surfaces of a 2-ply sheet | seat is known by the so-called gravure transfer | Lotion chemical | medical agent coating apparatus (for example, patent document 1 Reference).

On the other hand, a three-layer or more tissue paper using two kinds of chemical liquids, for example, a middle layer of the desired chemical liquid lotion is applied, and the middle layer of the three-layer structure sandwiched between the outer layer coated with another chemical liquid lotion. In order to manufacture the tissue paper, the outer layer and the inner layer are applied separately and in a separate process, and the outer layer and the inner layer applied in a separate process are then subjected to three ply processing, and then the folding process is performed. (For example, refer patent document 2).

[Patent Document 1] Japanese Unexamined Patent Publication No. 10-501853

[Patent Document 2] Japanese Unexamined Patent Publication No. 2003-325372

However, there was a problem that the work efficiency is not good because the outer layer and the inner layer were applied separately and offline.

Therefore, the main subject of this invention is providing the manufacturing method of household sanitary thin paper which improved the manufacturing efficiency by apply | coating two types of chemical liquids efficiently, and its manufacturing equipment.

The present invention which solves the above problems is as follows.

<Invention according to Claim 1>

The invention as set forth in claim 1 is a method for producing household hygienic thin paper, in which the continuous sheet is unrolled from two or more ply rolls, and the chemical liquid is continuously applied to the continuous sheet by roll transfer, and then wound again to produce a separate process. In the papermaking process, the continuous sheets of the raw material rolls narrowed the high-resolution width of the raw material pulp to increase the metric basis weight to 10-25 g / m 2, and then crepe the blade in the creping process. The tip angle is adjusted to increase the crepe rate, and the sheets of the predetermined layer of the roll and the sheets of the other layers are separated and unrolled, respectively, and the sheets of the predetermined layer and the sheets of the other layers are different. The chemical liquid is applied at a content of 12 to 45 mg / cm 3 per sheet volume, and these coated sheets are again joined and rewound. Bakyeop a method or not.

<Invention according to Claim 2>

The invention according to claim 2 is made of three ply rolls, and one ply of the middle layer and two plies of both outer layers are separated and released, respectively, the sheets of the middle layer and the sheets of both outer layers are coated with different chemical liquids, These apply | coated sheets are the manufacturing method of household hygiene thin paper of Claim 1 which has the process of joining again and winding so that the front and back surface of a middle layer may be sandwiched between both outer layers.

(Action effect)

In the papermaking process, the continuous sheet of the used roll is narrowed to a high density of the pulp of the raw material in the papermaking process to increase the metric basis weight to 10 to 25 g / m2, and then, in the creping process, the crepe edge angle of the crepe is adjusted to crepe. It was assumed that the rate was increased. In addition, the sheets of the predetermined layer of the roll and the sheets of the other layers are separated and unrolled, respectively, the sheets of the predetermined layer and the sheets of the other layers are each applied with a different chemical solution, these coated sheets By having the process of rejoining and rewinding, since two kinds of chemical liquids can be applied in the same process, the production efficiency of two or more layers of household sanitary thin papers using two kinds of chemical liquids is improved.

In the above process, the raw roll is three plies, and one ply of the middle layer and two plies of both outer layers are separated and unwound, respectively, and different chemical liquids are applied to the sheets of the middle layer and the sheets of both outer layers, respectively. The sheets can be joined again and wound up so as to sandwich the front and back surfaces of the middle layer with both outer layers, thereby improving the production efficiency of three layers of household sanitary thin papers using two kinds of chemical liquids.

<Invention according to Claim 3>

In the invention according to claim 3, in the papermaking step, the narrowing width of the raw material pulp is made high, the metric basis weight is set to 10 to 25 g / m 2, and then the crepe rate is adjusted by adjusting the edge angle of the crepe in the creping process. Using the respective rolls of rolls of the continuous sheet, the continuous sheet is unrolled from the first roll of rolls, and the chemical liquid is continuously applied to the continuous sheet at a content of 12 to 45 mg / cm 3 per sheet volume by roll transfer. After coating, the process of rewinding, and this winding is fly-bonded while unwinding the continuous sheet from the first roll of fabric and the second roll of roll, respectively, and the sheet from the second roll of roll And a step of continuously applying a chemical liquid different from the sheet of the roll of fabric to a content of 12 to 45 mg / cm 3 per sheet volume by roll transfer.

<Invention according to Claim 4>

In the invention according to claim 4, the first far roll is made of one ply, the second far roll is made of two plies, and the continuous sheet from the first far roll is separated from the continuous sheet from the second far roll. It is a manufacturing method of the household hygiene thin paper of Claim 3 which ply-bonds in the sandwiched state.

(Action effect)

In the papermaking process, the width of the raw paper pulp is narrowed to increase the density and the metric basis weight is 10-25 g / m 2, and then, in the creping process, the edge of the crepe is adjusted to increase the crepe rate. Process of unwinding the continuous sheet from the first roll of fabric by using a roll of roll, applying the chemical liquid to the sheet of continuous sheet at a content of 12 to 45 mg / cm 3 per sheet volume by roll transfer, and then rewinding And the senses are fly-bonded while unwinding the continuous sheet from the first far roll and the second far roll, respectively, and the sheet from the second far roll is different from the sheet of the first far roll. By carrying out the process of continuously applying another chemical liquid at a content of 12 to 45 mg / cm 3 per sheet volume by roll transfer, the continuous coating process from the second raw roll to the sheet is carried out online of the folding process. Can. Therefore, the manufacturing efficiency of the household hygiene thin paper of two or more layers using two types of chemical liquids can be improved.

In the above process, the first sheet roll is one ply, the second sheet roll is two plies, and the continuous sheet from the first sheet roll is interposed between the continuous sheets from the second sheet roll. By fly-bonding in the sandwiched state, the production efficiency of three-layered household hygiene thin paper using two kinds of chemical liquids can be improved.

<Invention according to Claim 5>

In the invention according to claim 5, each of the continuous sheets is unrolled from two or more ply rolls, and the chemical liquid is continuously applied to the sheets at a content of 12 to 45 mg / cm3 per sheet volume by roll transfer, and then wound again. As a manufacturing facility for household sanitary thin paper produced in a separate process, in the papermaking process, after narrowing the high resolution width of the raw material pulp to increase the metric basis weight to 10-25 g / m2, and then crepe the end of the crepe in the creping process. A sheet of a predetermined layer of this sheet roll and a sheet of the other layers are separated and unrolled, respectively, by using a roll of rolls of continuous sheets having an increased crepe rate by adjusting the angle, The first coating device to be coated onto the sheet, the second coating device to be applied to the sheets of the other layers, and the coated sheets to be joined again to roll again ng) is a production facility for household hygiene thin paper, characterized in that it has a means.

(Action effect)

In the papermaking process, the raw paper pulp is narrowed and the density is increased to increase the metric basis weight to 10-25 g / m 2, and then, in the creping process, the crepe rate is adjusted by adjusting the edge angle of the crepe to increase the crepe rate. A first coating device configured to separate and unwind the sheet of the predetermined layer of the raw roll and the sheet of the other layer by using a roll, and to apply to the sheet of the predetermined layer, and other layers Production efficiency of two or more layers of household sanitary thin paper using two kinds of chemical liquids can be improved by having the second coating device applied to the sheet of the sheet and the coated sheet again joining and rolling means rewinding. .

<Invention according to Claim 6>

In the invention according to claim 6, in the papermaking step, the width of the raw material pulp is narrowed and made high, and the metric basis weight is set to 10 to 25 g / m 2. In the creping step, the crepe rate is adjusted by adjusting the edge angle of the crepe. Applying the chemical liquid at a content of 12 to 45 mg / cm3 per unit volume of the sheet continuously by roll transfer to the sheet while unwinding the continuous sheet from the first far roll using each of the far rolls of the continuous sheet. A first coating device to be used, a rolling means for rewinding the sheet, a first joining roll, and a fly joining means for ply bonding while unwinding a continuous sheet from a second second roll of roll, and a second And a second coating device for continuously applying the chemical liquid at a content of 12 to 45 mg / cm3 per unit volume of the sheet by roll transfer to the continuous sheet from the original roll of A production facility fingers sanitary bakyeop.

(Action effect)

A first coating device for continuously applying the chemical liquid at a content of 12 to 45 mg / cm3 per sheet volume of the sheet by roll transfer to the sheet while unwinding each of the continuous sheets from the first raw roll; Roll transfer means for the rolled rolling means, the rolled first means roll, the fly bonding means for ply bonding while unwinding the continuous sheet from the second separate roll, and the continuous sheet from the second roll. By having a 2nd application device which continuously apply | coats a chemical | medical solution at content of 12-45 mg / cm <3> per sheet volume, the manufacturing efficiency of two or more layers of household sanitary thin papers using two kinds of chemical liquids can be improved.

(Effects of the Invention)

Advantageous Effects of Invention According to the present invention, there are advantages in that two types of chemical liquids can be efficiently applied to improve production efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of 1st Embodiment of the principal part of the manufacturing apparatus of the household sanitary thin paper which concerns on this invention.

It is a schematic diagram which shows the state which apply | coats a chemical | medical solution to the sheet | seat for intermediate | middle layers in 2nd Embodiment of the principal part of the manufacturing apparatus of household hygiene thin paper which concerns on this invention.

It is a schematic diagram which shows the state which apply | coats a chemical | medical solution to the sheet | seat of both outer layers in the folding process process in 2nd Embodiment of the principal part of the manufacturing apparatus of the household sanitary thin paper which concerns on this invention.

<Description of Symbols>

1,2,3,4,5: Secondary fabric roll

1A, 1B, 3A, 4A, 5A, 6A: Continuous Sheet

10: first coating device (in first embodiment)

10A: Coating Roll

10B: push roll

10C: anilox roll

11: second coating device (in the first embodiment)

11A: Coating Roll

11B: push roll

11C: aniloxol

12: First coating device (in second embodiment)

12A: Coating Roll

12B: push roll

12C: aniloxol

13: second coating device (in the second embodiment)

14A, 15A: Coating Roll

14B, 15B: push roll

16: fly jointing means

17: folding processing device

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described.

<Production form>

First, with respect to the method for manufacturing household hygiene thin paper according to the present invention and its manufacturing equipment, a lotion containing an antiviral agent is applied to a middle layer, and the middle layer is used as a chemical liquid lotion (a chemical liquid lotion containing no antiviral agent. The manufacturing method and equipment of the three-layered tissue paper which sandwich both sides with the apply | coated outer layer are demonstrated as an example below. In addition, the present invention is not limited to tissue paper, but may also be a toilet paper.

At the time of manufacture of box-type tissue paper etc., paper paper is made from paper pulp fiber (preferably 100% of pulp fiber of virgin pulp which does not contain old paper pulp), and crepe the paper as needed. After carrying out the calendering process, it is wound up to produce a primary far roll (generally called a jumbo roll), which is then not shown, but the primary far roll is set in a known fly machine, The first continuous sheet released from the primary roll is rolled up and cut in a ring shape (multiple divisions in the width direction) to produce a secondary roll made of three plies. In addition, although the 3rd ply secondary fabric roll is used in this embodiment, this invention is not limited to this, You may use the secondary fabric roll which consists of several sheets of plies.

(1st embodiment)

First, as for the 1st Embodiment of the principal part of the manufacturing apparatus of the household sanitary thin paper which concerns on this invention, as shown in FIG. 1, it is continuous of the fiber web unwound from the secondary fabric roll 1 which consists of three plies. The chemical | medical solution lotion to the 1st application apparatus 10 which apply | coats the lotion containing an antiviral agent to 1 A of 1-ply or more middle-layer sheets 1A, 1B, and the sheet 1B of both outer layers (2 plies). The 2nd coating apparatus 11 which apply | coats is provided.

The 1st coating apparatus 10 is a flexographic transfer method coating apparatus, The coating roll 10A arrange | positioned at one side of the continuous sheet 1A with respect to the continuous sheet 1A of a middle layer, and this coating roll ( The press roll 10B arrange | positioned at the other side of the continuous sheet 1A in the state which faced 10A) is provided. A flexographic plate is used for the coating roll 10A disposed on one side of the continuous sheet 1A in the middle layer, and a rubber impression cylinder is applied to the press roll 10B disposed on the other side of the continuous sheet 1A. This press roll 10B is capable of adjusting the pressure by a slide control means (not shown) such as a hydraulic jack. In addition, supply of the chemical liquid to the coating roll 10A is performed by the anilox roll 10C, and the chemical liquid amount is also adjusted by this roll.

As the first coating device 10, a gravure transfer method described below may be used in place of the flexographic transfer method.

Similar to the first coating device 10, the second coating device 11 is a flexographic transfer method coating device, and has one side of the continuous sheet 1B with respect to the continuous sheet 1B of both outer layers of two or more plastics. 11 A of coating rolls arrange | positioned at the side, and the pressing roll 11B arrange | positioned at the other side of continuous sheet 1B in the state which faced this coating roll 11A are provided. Details thereof are the same as those of the first coating apparatus 10, and thus will be omitted. Moreover, although the continuous sheet 1B of both outer layers is two or more plastics, since it is a flexographic transfer system, even if it applies from one side of the continuous sheet 1B, the chemical liquid impregnates one sheet of the continuous sheet 1B. At the same time, the sheet on the other side of the continuous sheet 1B is also impregnated. As the second coating device 11, instead of the flexographic transfer method, the gravure transfer method described below may be applied to each of the one side and the other side sheet of the continuous sheet 1B of both outer layers.

As shown in FIG. 1, the manufacturing process consists of 1 ply sheet 1A of a middle layer, and 2 plies of both outer layers among the continuous sheet | seat 1A, 1B which are unwound from the secondary fabric roll 1 which consists of 3 plies. The sheets 1B are separated and released, respectively, and are sent to the first coating device 10 and the second coating device 11, respectively. Then, as described above, a lotion containing an antiviral agent is applied to the continuous sheet 1A of one or more layers by the first coating device 10, and to the continuous sheet 1B of both outer layers of two or more plies. The chemical liquid lotion is applied by the second coating device 11. Thereafter, the applied continuous sheets 1A and 1B are joined again and rolled into the outer layer 1B coated with a chemical liquid lotion so as to sandwich both sides of the middle layer 1A coated with a lotion containing an antiviral agent therebetween. It is wound again by a means (not shown), and 3 ply processing is performed. Here, fly processing means the process which overlaps several sheets, and does not necessarily mean fly bonding (fly bonding). At the time of a 2nd rolling process, you may emboss, press work, etc. with respect to a fibrous web as needed.

Then, the continuous sheet wound | wounded from the secondary fabric roll 2 was set, for example, two sets of the wound secondary fabric roll 2 with respect to a rotary interfolder (not shown), for example. Are stacked while folding with a folding processing device (not shown). The folded laminate produced by the folding processing apparatus is cut at intervals equal to the width of the product tissue paper in the longitudinal direction in the rear end equipment, and is subjected to processing such as box filling and packaging to become a product.

In addition, this embodiment is not limited to 3 plies, It can manufacture also with several sheets of continuous sheets.

(Second embodiment)

Next, as shown in FIG. 2 and FIG. 3, the second embodiment of the main part of the production equipment for household sanitary thin paper according to the present invention is a ply secondary secondary roll 3 as a sheet for middle layer. A first application device 12 for applying a lotion containing an antiviral agent to the continuous sheet 3A of the fibrous web released by the first, a rolling means (not shown) for rewinding the sheet, and a first The continuous sheet 4A for the middle layer applied by the coating device 12 is sandwiched between the continuous sheets 5A unrolled by the secondary rolls 5 as the sheets for both outer layers, and bonded together. 2nd application apparatus which apply | coats chemical | medical solution lotion to the sheet | seat 5A of both outer layers of the continuous sheet 6A in the state which the fly bonding means 16 and the middle layer 4A and both outer layers 5A fly-bonded. (13) is provided.

As shown in FIG. 2, the first coating device 12 is a flexographic transfer method coating device, which is disposed on one side of the continuous sheet 3A with respect to the continuous sheet 3A for one-ply middle layer. 12 A of coating rolls and the pressing roll 12B arrange | positioned at the other side of 3 A of continuous sheets in the state which faced this coating roll 12A are provided. A flexographic plate is used for the coating roll 12A arranged on one side of the continuous sheet 3A for one ply, and rubber pressing is used for the press roll 12B arranged on the other side of the continuous sheet 3A. The pressure of the press roll 12B is adjustable by slide control means (not shown) such as a hydraulic jack. In addition, supply of the chemical liquid to the coating roll 12A is performed by the anilox roll 12C, and the chemical liquid amount is also adjusted by this roll.

3 A of continuous sheets for intermediate | middle layers apply | coated by the 1st coating device 12 are rewound by rolling means (not shown). Then, the fly-bonding means 16, while unwinding the continuous sheets 4A and 5A, respectively, from the wound first roll 4 and the two sets of secondary ply rolls 5 and 5 separately set. By this, the continuous sheet 4A for the middle layer is sandwiched between the continuous sheets 5A and 5A as the sheets for both outer layers, and they are joined in the state of three plies.

In the present embodiment, two sets of secondary ply rolls 5 and 5 are used as sheets for both outer layers, but one set of two plies secondary rolls may be used.

The second coating device 13 is a gravure transfer method coating device, which is a continuous sheet 5A with respect to the continuous sheets 5A and 5A of both outer layers with the continuous sheet 4A for intermediate layers sandwiched therebetween. The coating rolls 14A and 15A arranged on one side and the other side of .5A, and on the other side and one side of the continuous sheets 5A and 5A in a state facing the coating rolls 14A and 15A. The press rolls 14B and 15B are provided, and the sheet | seats 5A and 5A of both outer layers can be apply | coated continuously from each surface side. Gravure plates are used for the coating rolls 14A, 15A disposed on one side and the other side of the continuous sheets 5A, 5A of both outer layers, and the press rolls disposed on the other side and one side of the continuous sheets 5A, 5A ( Rubber presses are used for 14B and 15B, and the pressure rolls 14B and 15B are adjustable in pressure by slide control means (not shown), such as a hydraulic jack.

Since the 2nd coating device 13 is a gravure transfer system, even if the fiber web of both outer layers is apply | coated from each surface side, the chemical liquid lotion can be prevented from impregnating the fiber web of a middle layer.

First, as shown in FIG. 2, a manufacturing process makes a claim with the 1st coating apparatus 12 with respect to the continuous sheet 3A for intermediate | middle layers unwound by the 1st ply secondary fabric roll 3. The lotion containing the viral agent is applied continuously, and the applied continuous sheet 3A is then rewound by rolling means (not shown). Then, this reel is two sets of secondary fabric rolls (4) for the middle layer, two sets of secondary fabric rolls (5, 5) for both outer layers, and two sets of secondary fabric rolls (4, 5, 5). Prepare. In each set, the middle layer 4A and both outer layers 5A are ply bonded by the ply bonding means 16, and the chemical liquid lotion is applied to both outer layers 5A by the second coating device 13. As needed, you may emboss, press work, etc. with respect to a fibrous web. And 6 A of applied continuous sheets are piled up while folding by the folding processing apparatus 17. FIG. The folded laminate produced by the folding processing apparatus 17 is cut at intervals equal to the width of the product tissue paper in the longitudinal direction in the rear end equipment, and is subjected to processing such as box filling and packaging to become a product.

In addition, the continuous sheet 4A for the middle layer is fly-bonded with the continuous sheets 5A and 5A which are unwound and directly released from the secondary fabric rolls 5 and 5 for both outer layers online without sensing again. You may apply | coat a chemical | medical solution lotion with the 2nd coating apparatus 13 with respect to (5A, 5A).

<Liquid lotion>

At the time of application of the so-called chemical liquid lotion, the content per sheet unit volume, which shows a water content of about 6% after the initial bath, is preferably 12 to 45 mg / cm 3, particularly 18 to 40 mg / cm 3. If the chemical liquid content is small, it is difficult to obtain the desired characteristics described below. Increasing the amount of the chemical liquid not only increases the cost with increasing the amount of the chemical liquid, but also gives stickiness during use and residual feeling of the chemical liquid after use. In addition, wrinkles caused by the difference in shrinkage of the continuous sheet before and after application of the chemical liquid lotion lead to the generation of so-called "shrink wrinkles". When the continuous sheet in which such "shrink wrinkle" has occurred is subjected to the folding process or the rolling process, which is a subsequent step, in the folding process, wrinkles that are folded at a place other than the position to be folded together with the "shrink wrinkle" are generated, In this case, variations in sheet dimensions are likely to occur. In addition, "shrink wrinkles" are more likely to occur in rolling. Chemical liquid lotion In the present household hygiene thin paper, in spite of the small amount of chemical liquid used, imparting the desired characteristics described below has a large relationship with lowering the meter basis weight.

That is, the preferable meter basis weight per 1 ply of a base paper is 10-25 g / m <2>, Especially preferably, it is 10-15 g / m <2>. Low meter basis weight can weaken the resilience of the paper and provide good enough flexibility. However, if it is excessively low, a decrease in strength or the like will occur. In addition, the measurement of a metric basis weight is based on JIS P 8124.

The softness of the product is preferably 0.5 to 1.0 g, particularly 0.6 to 0.8 g. If it is less than 0.5g, the flexibility is good, but the elasticity of the paper is weakened. If it exceeds 1.0g, the flexibility is weakened and the paper becomes hard. In accordance with the "Handleometer E method" in JIS L1096, softness is used as a terminal for cutting products (for example, 2 plies for 2 ply products) cut out by 10 cm x 10 cm in a gap of 5 mm in width. It is represented by the resistance value (average value of a product longitudinal direction and a horizontal direction) at the time of pushing by.

In addition, the above-mentioned content of the volume per sheet unit volume, the metric basis weight per ply, and the softness of the chemical liquid lotion described above also apply to a lotion containing an antiviral agent described below.

The chemical liquid lotion in the present invention is not particularly limited, but the main ingredient is mainly to increase the feel (feel), to increase the moisture retention, to reduce the irritation of the pulp fibers to the skin, or to increase the wet feeling. It can be mentioned.

For example, polyhydric alcohols such as polysiloxanes such as silicone oil and silicone powder, glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, glucose, xylitol, maltose, maltitol, The thing which uses the thing containing at least 1 type of moisturizer among sugars, such as mannitol and trehalose, a glycol solvent, and its derivative (s) is mentioned.

In addition, higher alcohols such as cetanol, stearyl alcohol and oleyl alcohol, liquid paraffin and the like can also be used.

Furthermore, amino acids, such as glycine, aspartic acid, arginine, alanine, cystine, cysteine, etc. in the chemical solution; Plant extract extracts such as aloe extract, gamcha extract, quince extract, cucumber extract, awi root extract, tomato extract, brier extract, loofah extract, lily extract, self-extracted extract and the like; Vegetable oils such as olive oil, jojoba oil, rosehip oil, almond oil, eucalyptus oil, avocado oil, camellia oil, soybean oil, safflower oil, sesame oil and evening primrose oil; Vitamin, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, chitosan, urea, honey, royal jelly, sodium hyaluronate, ceramide, squalene, petrolatum and the like can be blended.

Here, vitamin C, vitamin E, and collagen have a function of increasing wetness. Vitamin C and vitamin E also function as antioxidants. Vitamin E is a powerful reducing agent, and has an antioxidant action that eliminates free radicals and free radicals and prevents the generation of lipid peroxide. Therefore, vitamin E functions as a stabilizing agent of the chemical solution, and when applied to skin of a person using thin paper, the antioxidant and blood circulation promoting effects of the sebum of the skin are exerted. It also has a moisturizing function. Vitamin C, like vitamin E, has an antioxidant effect on sebum. In addition, since vitamin C has a function of reducing vitamin E, when both of vitamins C and E are used, vitamin C acts as a preparation of vitamin E, reducing vitamin E oxidized by active oxygen or the like, and The strong sebum antioxidant action is maintained. Collagen forms 90% of the dermis of the skin, which decreases, leaving the skin moist and elastic. Therefore, by incorporating it into the thin paper, it exerts a moisturizing effect that moisturizes the skin when it comes into contact with the skin, and also exerts a moisturizing effect on the thin paper.

Moreover, especially as a chemical liquid, when pH becomes a weak acid of 5.0-6.0, even if it makes contact with skin, skin will not become alkaline, and roughening of the skin by the influence of chemical pH can be prevented effectively. A particularly suitable pH range is 5.3 to 5.7. As the pH adjusting method, an acidic or basic pH adjusting agent can be added to the chemical liquid. When the chemical liquid is strongly acidic, an aqueous sodium hydroxide solution or an aqueous potassium hydroxide solution can be used. In the case of neutral or alkaline, citric acid, malic acid, or lactic acid can be used. Can be used.

Sorbitol, altitol, xylitol, erythritol, lactitol and paratinite are mentioned as a chemical liquid for obtaining a refreshing feeling. Especially preferred are erythritol, xylitol and sorbitol, more preferably erythritol or xylitol. It may also include one or two or more cold sensitizers selected from the group of menthol, salicylic acid, α-cinelol, and derivatives thereof. In this case, it is preferable to include the medicine for obtaining the refreshing feeling unevenly distributed on the surface of the paper substrate in a dispersed state in the binder component.

On the other hand, preferred additives to be added at the initial stage of the base paper are wet strength agents, softening agents, carboxymethyl cellulose and the like.

Representative examples of the softening agent are surfactant-based softening agents, and the softening agent may be appropriately selected from anionic surfactants, nonionic surfactants, cationic surfactants, and zwitterionic surfactants. In the case of using an anionic surfactant, the elasticity (bending rigidity) of the base paper can be lowered to the above-mentioned range, thereby promoting moisturization by a moisturizing agent and softness by a softening agent. As the anionic surfactant, carboxylate, sulfonate, sulfate ester salt, phosphate ester salt and the like can be used. Especially an alkyl phosphate ester salt is preferable.

As nonionic surfactant, polyhydric alcohol monofatty acid esters, such as sorbitan fatty acid ester, diethylene glycol monostearate, diethylene glycol monooleate, glyceryl monostearate, glyceryl monooleate, and propylene glycol monostearate, N -(3-oleyloxy-2-hydroxypropyl) diethanolamine, polyoxyethylene cured castor oil, polyoxyethylene sorbitan beeswax, polyoxyethylene sorbitan sesquistearate, polyoxyethylene monooleate, poly Oxyethylene monolaurate, polyoxyethylene cetyl ether, polyoxyethylene lauryl ether and the like can be used.

It is preferable to use cationic surfactant as a softening agent. As this cationic surfactant, a quaternary ammonium salt, an amine salt, an amine, etc. can be used. As the zwitterionic surfactant, an aliphatic derivative of a secondary or tertiary amine containing carboxy, sulfonate, sulfate, or an aliphatic derivative of a heterocyclic secondary or tertiary amine can be used.

In addition to the melamine-formaldehyde addition condensate and the urea-formaldehyde addition condensate, as the wet strength (enhancing) agent, the following may be suitably used. Polyacrylamide, polyvinyl alcohol, glyoxal polyacrylamide copolymer, polyamide epichlorohydrin resin, dialdehyde starch or cationic modified starch, oxidized starch, etc., in which the number of functional groups is reduced to the usual 1/10 Specifically, a thermosetting resin comprising a polyvinylamide copolymer having a cationic property and a divalent aldehyde (for example, Japanese Patent Application Laid-Open No. 44-26670, Japanese Patent Application Laid-open No. 54-44762, and Japanese Laid-Open Patent Publication) Japanese Patent Application Laid-Open No. 57-149595), a cationic aldehyde-modified polyacrylamide copolymer (Japanese Patent Laid-Open No. 6-184985, Japanese Patent Laid-Open No. 8-56868), a cationic polymer and an anionic polymer At least one of the cationic polymer and the anionic polymer has a hydrophobic property, and known materials such as those disclosed in JP 2002-275787 A are used. Can.

<Antiviral agent>

In the lotion containing an antiviral agent, the kind of antiviral agent which can be used is not specifically limited. Either natural antiviral agents (contained in components in living plants and animals) or non-natural antiviral agents can be used. Specifically, the monoterpene hydrocarbons contained in plant extracting components, such as auxene, camphor, limonene, savinen, myrsen, terpinene, pinene, and cymene, citronellol, geraniol, isopregol, for example Monoterpene alcohols such as linalol, terpineol, anetol, carbachol, eugenol, thymol, paracresol, phenols such as carbicol, t-anetol, chabicolmethyl ether, and saprool Aldehydes such as phenol ethers, acetaldehyde, citral, citronellal, geranial, perylaldehyde, pareranal, acetophenone, camphor, jasmine, note carton, mentone, phencone, carbon, pullegon (pulegon) Among medicinal components such as ketones such as ketones, oxides such as caroliolefin oxides, cinerols and bisabool oxides, catechins, proanthocyanidins, flavones, flavanones, anthocyanins, phenols, and flavonoids such as flavonols, 1 Moderate species or species You can use the tag. In addition to the above, for example, organic acids such as ascorbic acid, carboxylic acid, citric acid, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, and the like can also be used.

When a plant extract component is used as an antiviral agent as it is, a fragrance component etc. are contained with a bactericidal component, for example, and there exists a possibility of giving discomfort to a user. However, if the antiviral agent is wrapped in a microcapsule, there is no such concern. That is, the form in which the antiviral agent is enclosed in a microcapsule is a particularly advantageous form when the plant extract component is used as the antiviral agent as it is.

<Production conditions, etc.>

When producing household hygienic thin paper, the paper pulp and papermaking conditions in the papermaking process so that the metric basis weight per ply according to JIS P 8124 is in the range of 10 to 25 g / ㎡, optimally 10 to 15 g / ㎡ Adjust it. As the raw material pulp, it is possible to include the high-fat pulp at a rate of 50% or less, if necessary, preferably virgin pulp, consisting of NBKP and LBKP, and the ratio of NBKP is 30-70%, especially 40-60%. desirable. In addition, it is preferable to add a wet strength agent, a softening agent, and carboxymethyl cellulose (CMC) to give an aeration.

At this time, the high resolution width of the raw material pulp can be narrowed to increase the density. In general, when the metric basis weight is increased and densified, the paper strength increases and the paper thickness decreases, so that the feeling of softness does not come out.In the later creping process, the crepe rate is increased by adjusting the edge angle of the crepe to increase the crepe rate. Come out.

And finally, in a calendar process, it calenders by adjusting the pressure in each calender process of an online machine calendar and a fly machine calender so that paper thickness may not fall too much and deviate from the range of the target paper thickness.

That is, the above method of manufacturing narrows the high resolution width of the raw material pulp to form a paper with a low paper thickness and high surface smoothness due to high density, and is smooth and soft by creping at a high crepe rate with respect to the paper. A feeling is expressed, and in subsequent calendar processing, final paper thickness is adjusted. Moreover, what is necessary is just to adjust suitably according to the specific crepe ratio, the mixing ratio of the manufacturing equipment, additives, and raw material pulp to be used.

Claims (6)

As a method for producing household hygienic thin paper, which is applied to the continuous sheet by roll transfer, while continuously dissolving the continuous sheet from each of the two or more ply rolls, the product is rolled and commercialized in a separate process. These continuous sheets of the raw material rolls narrowed the beating width of the raw material pulp in the papermaking process to increase the metric basis weight to 10-25 g / m 2, and then crepe the blade in the creping process. By adjusting the tip angle to increase the crepe rate, The sheet of the predetermined layer of the roll and the sheet of the other layer are separated and unrolled, respectively, The sheets of the predetermined layer and the sheets of the other layers are each applied with different chemicals in a content of 12 to 45 mg / cm 3 per sheet volume, These coated sheets are joined again and have a step of rewinding. The method of claim 1, The roll is made up of three plies, and one ply of the middle layer and two plies of both outer layers are separated and unwound, The sheets of the middle layer and the sheets of both outer layers are each applied with different chemicals, These coated sheets are joined again and have a step of winding them so as to sandwich the front and back surfaces of the middle layer into both outer layers. In the papermaking process, the width of the raw paper pulp is narrowed to increase the density and the metric basis weight is 10-25 g / m 2, and then, in the creping process, the edge of the crepe is adjusted to increase the crepe rate. Using a roll of fabric, While unwinding each of the continuous sheets from the first raw roll, applying the chemical liquid to the continuous sheet continuously with a content of 12 to 45 mg / cm3 per sheet volume by roll transfer, and then rewinding it; The fabric is ply bonded while unwinding the continuous sheet from the first roll of fabric and the second roll of roll, respectively. It has a process of continuously apply | coating the chemical | medical solution different from the sheet | seat of a 1st raw material roll to the sheet | seat from a 2nd raw material roll in content of 12-45 mg / cm <3> per sheet volume by roll transfer, It is characterized by the above-mentioned. Method for making household hygienic thin paper. The method of claim 3, The first raw roll is made of one ply, the second raw roll is made of two plies, A method of producing a household hygiene thin paper, wherein the continuous sheet from the first roll of fabric is ply bonded in a state where the continuous sheet from the second roll of paper is sandwiched therebetween. While unwinding each continuous sheet from two or more ply rolls, the chemical liquid is continuously applied to this sheet at a content of 12 to 45 mg / cm3 per unit volume of the sheet by roll transfer, and then rewound and commercialized in a separate process. As a manufacturing facility for household sanitary thin paper, In the papermaking process, the raw paper pulp is narrowed and the density is increased to increase the metric basis weight to 10-25 g / m 2, and then, in the creping process, the crepe rate is adjusted by adjusting the edge angle of the crepe to increase the crepe rate. A roll is used to separate and unwind the sheet of the predetermined layer and the sheet of the other layer of this roll, respectively, Having a first coating device applied to the sheet of the predetermined layer, a second coating device applied to the sheet of the other layer, and rolling means for rejoining and rewinding the coated sheets. A facility for manufacturing household sanitary lamination paper. In the papermaking process, the width of the raw paper pulp is narrowed to increase the density and the metric basis weight is 10-25 g / m 2, and then, in the creping process, the edge of the crepe is adjusted to increase the crepe rate. Using a roll of fabric, A first coating device for continuously applying the chemical liquid at a content of 12 to 45 mg / cm3 per sheet unit volume by roll transfer to the sheet while unwinding each of the continuous sheets from the first raw roll; Rolling means for rewinding the sheet; Fly joining means for ply bonding while unwinding the continuous sheet from the first roll of the roll and the second roll of roll, respectively, And a second coating device for continuously applying the chemical liquid at a content of 12 to 45 mg / cm 3 per sheet volume by roll transfer to the continuous sheet from the second roll of fabric. .

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