KR101673596B1 - Sanitary tissue paper - Google Patents
Sanitary tissue paper Download PDFInfo
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- KR101673596B1 KR101673596B1 KR1020100017144A KR20100017144A KR101673596B1 KR 101673596 B1 KR101673596 B1 KR 101673596B1 KR 1020100017144 A KR1020100017144 A KR 1020100017144A KR 20100017144 A KR20100017144 A KR 20100017144A KR 101673596 B1 KR101673596 B1 KR 101673596B1
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Abstract
assignment
A kitchen paper excellent in visibility of a liquid-absorbing point is provided.
Solution
A kitchen paper in which a plurality of sheets are laminated and embossed, wherein the top sheet is a white sheet made of a decolorized pulp and the at least one sheet is a sheet made of an undyed pulp as a raw material. do.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sanitary papermill paper, and more particularly to a sanitary papermill paper in which absorption of oil and moisture is visually confirmed easily.
Hygiene Pak Yeolgi is used as a kitchen paper, a tissue paper, a toilet paper, a towel paper, and the like depending on various places of living.
In the above-mentioned sanitary papers, for example, kitchen paper can be used for packaging of food, a cover for planting, a drip absorbent such as fresh fish, dewatering, oil filtration, excessive oil absorption of fried food, It is an important function that absorbs liquid such as absorbency and absorbency.
Therefore, the sanitary paper sheet related to the kitchen paper is formed by laminating the embossed base paper with a proper number of sheets, and the capillary phenomenon due to the gap between the sheet fibers is used as the main liquid-absorbing mechanism, Moisture, oil and the like are attracted to and retained in the pores. In addition, because sanitary papillows related to kitchen paper are required to be clean, there is a high demand for products using bleaching pulp (also called bleached pulp) having high whiteness as a raw material.
Another type of sanitary paper, tissue paper, is widely used in living rooms, bedrooms, study rooms and offices in general households. The use of this tissue paper is widely used for nose loosening, hand wiping, table, desk top wiping, and various other purposes, and it is required not only for the wiping property and the feeling when wiping the nose, but also for absorbency and absorbency.
For this reason, the tissue paper is laminated in a ply structure of two to three layers, and capillary phenomenon caused by the gap between the sheet layer and the sheet fibers is used as a main liquid-absorbing mechanism to draw water, oil, do. Since hygienic papermaking paper related to this tissue paper requires a sense of cleanliness, there is a high demand for a bleached pulp (also referred to as bleached pulp) having high whiteness as a raw material.
On the other hand, toilet paper or towel paper, which is another type of sanitary paper, is often used in restrooms and restrooms. The use of the toilet paper is used for cleaning the buttocks and toilet seat by the use of the bidet, cleaning the inside of the toilet, and the like, as well as the skin feel and the wiping property at the time of wiping the buttocks. This feeling of wetness is required.
Therefore, the sanitary papermaking sheet related to the toilet paper is formed by laminating the sheets of the papermaking paper subjected to the embossing process in an appropriate number of times, and using the capillary phenomenon caused by the gap between the sheet layer and the sheet fibers as the main liquid- And is mainly configured to attract moisture to the pores between the embosses of the main body.
In the toilet paper, there is a demand for a single-layer or two-layer recycled toilet paper whose main ingredient is phage pulp for reasons of economical efficiency and applications, but in recent years, a feeling of cleanliness is required. Therefore, a decolorized pulp Pulp ") as a main raw material is gradually increasing in demand.
On the other hand, towel paper is used for wiping off the water after wiping the hands after using the toilet, or for other purposes, and is required to be wiped and absorbent.
Therefore, the towel paper is mainly composed of a single-layer or two-layer ply structure, and capillary phenomenon caused by the gap between the sheet layer and the sheet fibers is used as a main liquid-absorbing mechanism, and moisture and the like are attracted and held in the pores of each sheet.
Since this type of towel paper mainly uses hand wiping, there has been a great demand for recycled towel paper made from conventional pulp pulp. However, since cleanliness is required in recent years, bleaching pulp (also referred to as bleached pulp) Demand for raw materials is increasing.
As described above, the sanitary papermill has been used in various fields, but the liquid absorbency represented by the absorbency and the absorbency is a very important function.
However, in the conventional sanitary papers, such a liquid-absorbing performance is important, but it is difficult to visually and intuitively judge the position and amount of the liquid-absorbing liquid after being absorbed.
Particularly, the use of a bleached pulp having a high whiteness as a raw material has the disadvantage that it is difficult to visually grasp how much the liquid has been absorbed at first glance because the contrast of the paper is not so changed even when absorbed or absorbed.
As a prior art which has paid attention to this point, for example, a technique equivalent to a kitchen paper has been disclosed as a "paper wiping paper for maintenance and wiping", but this is merely a technique in which a coloring layer and a water- And it is not sufficient in terms of discriminating the oil absorbency and the oil absorption amount, and the function is not guaranteed for the absorption.
It is also known that coloring can be observed from the surface by coloring the intermediate layer in a tissue paper or the like having a three-layer structure. However, this technique takes into account designability and does not allow the amount of absorbed liquid or the liquid absorption range to be visually recognized. In addition, although there is a paper which allows the absorbed portion to be colored by using a chemical solution such as an acid base indicator to identify the absorption, since the acid base indicator itself is water-soluble, there is a possibility that the water permeates through the paper and is transferred to the hand, It is not suitable for many applications. In addition, there is no principle effect on absorption.
Therefore, a main object of the present invention is to provide a simple and inexpensive sanitary papermill paper which can visually feel the amount and position of various liquids such as water, oil, etc., and which does not use a coloring agent .
The present invention which solves the above problems and the effect of the present invention are as follows.
<Invention according to Claim 1>
A sanitary foil paper comprising a plurality of sheets stacked and embossed, wherein the top sheet is a white sheet mainly composed of a decolorizing pulp, at least one sheet is a sheet made from an undyed pulp, Wherein the difference in whiteness of the sanitary napkin is 10 or more.
<Invention according to
The sanitary napkin according to claim 1, wherein a top portion of the embossing of the sheet constituting the front side and a bottom portion of the embossing of the sheet constituting the back side are stacked facing each other.
<Invention according to
The sanitary napkin according to Claim 1, wherein the basis weight of the surface sheet is larger than the basis weight of the sheet made of non-discolored pulp.
<Invention according to Claim 4>
The sanitary napkin according to claim 1, wherein the white paper constituting the surface layer has a higher unevenness than that of the sheet made of the uncolored pulp adjacent thereto.
<Invention according to Claim 5>
The sanitary napkin according to claim 1, wherein the thickness of the paper of the topsheet is thicker than the thickness of the sheet of the raw paper of the discolored pulp.
According to the present invention, there is provided a hygienic foil paper which makes it easy to visually judge the absorption of water, oil or the like.
1 is an enlarged sectional view of a kitchen paper X1 of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an enlarged sectional view of a kitchen paper X1 in the case of a kitchen paper of this embodiment.
The kitchen paper X1 of the present embodiment is formed by laminating a plurality of
The kitchen paper X1 of the present invention is characterized in that the top- and
Here, in the present invention, it is preferable that the white sheet (1) using the decolorizing pulp as a raw material has a whiteness degree of 75 or more. When the content is within this range, the impression having a cleanliness is obtained, and the visibility of a later-described liquid-absorption point is excellent. It is preferable that the opacity of the white sheet 1 is 75 to 98%. When the non-discolored pulp is laminated with a sheet made of a raw material, the sheet can be effectively concealed.
Examples of the pulp raw material for constituting the white sheet 1 include LBKP (hardwood kraft pulp), NBKP (softwood kraft pulp) and the like in an appropriate ratio. However, in the present invention, the raw pulp is not limited to this. Phage pulp and the like can also be used.
On the other hand, the
In the present invention, since the white sheet 1 and the
In the kitchen paper X1 of the present invention, for example, if the liquid is wiped off the surface of the white sheet 1, or fried food is placed on the white sheet surface to absorb excess oil, the white sheet 1 And the color tone of the
Here, in the present invention, when 1 cc of pure water is dripped from the white sheet surface to the appearance difference before and after the above-described liquid absorption and absorption,? Eab =? (? L 2 + the value of Δa 2 + Δb 2) 8.0
In addition, in the present invention, salad oil (the salad oil is not limited, but can be used without any problem if it is "Nissin salad oil", Nissin OilliO Group Co., Ltd.) from the white sheet surface, When the value of? Eab =? (? L 2 +? A 2 +? B 2 ) defined in JIS P 8150 of the dropping portion is 7.0
On the other hand, in the present invention, it is preferable that the basis weight of the white sheet (1) is larger than the basis weight of the colored sheet (2) made of the non-discolored pulp. By doing so, it becomes difficult to visually recognize the
The specific basis weight of the white sheet 1 and the
Further, in the kitchen paper X1 of the present invention, it is preferable that the creep ratio of the white sheet 1 is higher than that of the
The creep rate in the present invention can be calculated by (((peripheral speed of the dryer at the time of paper making (paper speed) - ((reel peripheral speed)) / (peripheral speed of the dryer at the time of paper paping) x 100 have.
On the other hand, in the kitchen paper of the present invention, it is preferable that the paper thickness of the white sheet is thicker than the paper thickness of the colored sheet.
As a method of measuring the thickness of the paper, the measurement is performed using a dial thickness gauge "PEACOCK G type" (manufactured by Ozaki Co., Ltd.) under the conditions of JIS P 8111. Specifically, after confirming that there is no waste or dust between the plunger and the measurement table, put the plunger on the measurement table, move the memory of the dial thickness gauge to set the zero point, then raise the plunger and place the sample on the test table , The plunger is slowly lowered to read the gauge at that time. At this time, only the plunger is put on. The paper thickness is an average value obtained by performing measurement 10 times.
On the other hand, in the kitchen paper related to the present invention, the embossment e is given to both the white sheet 1 and the
However, it may be a so-called " Tip to Tip " type in which the tops of the
The embossing to be performed on the sheet can be carried out, for example, by passing a processed embossed sheet (paper) between a pair of embossing rolls. The pair of embossing rolls may be both formed of a metal roll, but it is preferable that one of them is an elastic roll made of rubber or the like and the other is a metal roll having an embossing convex portion. The combination of the elastic roll and the metal roll is preferable because there is no problem of adjustment of the clearance of the roll and clogging of the paper powder or the like in the roll.
On the other hand, when the embossment is given, a pair of embossing rolls can be carried out while heating both embossing rolls or one embossing roll. If the embossing roll is heated, the embossing can be imparted more clearly and clearly.
The heated embossing roll may be an elastic roll, but it is preferably a metal roll. This is because, in addition to the fact that the metal roll has a good thermal conductivity and the effect of heating is effectively exhibited, besides, when the metal roll is heated, heat is given to the sheet or sheet in a form corresponding to the shape of the emboss, It is clear and clear.
In this case, the surface temperature of the heating roll is preferably in the range of 40 to 140 DEG C regardless of whether the pair of embossing rolls is a metal roll, a combination of an elastic roll and a metal roll, , Preferably 60 to 120 ° C, and more preferably 80 to 100 ° C. If the heating temperature is too low, there is a fear that the effect of sharpening the embossing may not be sufficiently exhibited. On the other hand, if the heating temperature is too high, energy may be lost, and there may be a risk that the sheet or sheet will burn, or the sheet or sheet to be produced will become hard.
The embossment (e, e) is given such that the embossing pressure between the pair of embossing rolls is 5 to 30 kg / cm, preferably 10 to 25 kg / cm, more preferably 15 to 20 kg / cm . If the embossing pressure is too low, there is a fear that the effect of sharpening the embossing may not be sufficiently exhibited. On the other hand, if the embossing pressure is excessively high, there is a fear that the processed raw paper tears.
When a pair of emboss rolls is made of a combination of an elastic roll and a metal roll, it is preferable that the surface of the elastic roll has a Shore hardness of 40 to 70. [ If the Shore hardness is too low, that is, if the surface of the elastic roll is too soft, the sheet or sheet may be broken. On the other hand, if the Shore hardness is excessively high, in other words, if the surface of the elastic roll is too hard, there is a fear that the emboss is not formed.
On the other hand, the concrete shape of the embosses (e, e) is an enemy (appropriately) design matter. For example, the shape of the ceiling portion (t) is a square, and the shape of the recess portion between the adjacent ceiling portions is an embossed shape having a trapezoidal shape. The shape of the ceiling may be a diamond, a circle, an ellipse, a polygon, or the like in addition to a square.
It is preferable that the ceiling portion (t) be made flat if each sheet is bonded with an adhesive. The area of the ceiling portion (t) is 0.1 to 40
The depth (D) of the embossment (e, e) is also a design matter, but is preferably 0.1 mm or more, preferably 0.5 mm or more, and more preferably 1.3 mm or more.
The emboss pattern formed by a plurality of embosses (e, e) is also an enemy design matter, and an emboss pattern which has been known in the past can be appropriately adopted in consideration of aesthetics and functionality.
Here, as for the strength of the kitchen paper X1 of the present embodiment, the wet tensile strength in the transverse direction is made to be not more than the wet tensile strength in the longitudinal direction (machine direction), and the wet tensile strength in the transverse direction is set to not less than 120 cN And more preferably 150 cN or more. Generally, the wet paper tensile strength in the transverse direction is often about 100 cN in the case of the kitchen paper X1 having a basis weight of 10 to 50 g / m < 2 > currently on the market. However, in the present embodiment, by increasing the wet tensile strength in the transverse direction, even when moisture or oil contained in fried food or fried food is absorbed, the emboss imparted clearly and clearly does not collapse, and fried food or fried food sticks It is no longer necessary to stick to it.
In order to increase the wet tensile strength in the transverse direction of the kitchen paper X1, for example, a wet strength increasing agent such as a surfactant may be added to the raw pulp, a kind of the raw pulp may be selected, or a beating solution of the raw pulp may be used Or to improve the fixation of the wet strength agent. However, if the wet tensile strength in excess of the transverse direction is increased, the wet tensile strength in the transverse direction is preferably 500 cN or less, and more preferably 350 cN or less, because it causes inhibition of the flexibility of the sheet. On the other hand, the wet tensile strength in the longitudinal direction can be suitably selected, and is usually at least one times the wet tensile strength in the transverse direction. In addition, the wet tensile strength described above is measured in an actual specification form. For example, when the product has a two-layer structure, the wet tensile strength in a two-layer structure is measured.
In addition, although the above embodiment describes the kitchen paper as an example, the present invention is not limited to this kitchen paper. A tissue paper, a toilet paper, or a towel paper according to the present invention based on a known technique such as a papermaking technology, a papermaking technology, an adjustment of a basis weight, and an embossing technique.
Example
Next, with respect to the kitchen paper X1 according to the present invention and its comparative example, the visibility of the absorption point at the time of absorption was tested and evaluated.
The test was carried out by dropping 1 cc of pure water on the white sheet side, determining whether or not the colored sheet laminated on the back surface could be visually recognized visually, whether or not it could be visibly recognized when it could be visually recognized, And whether or not the changes in the past were large.
The sheet associated with each example used is a two-layer structure, and the emboss is of the "Nested" type. The measured values such as whiteness are shown in Table 1 together with the test results.
* 1) Whiteness and L, a and b values were measured by SPECTRO COLOR METER MODEL PF-10 manufactured by NIPPON DENSHOKU KOGYO.
The whiteness was measured based on JIS P 8148.
The ΔEab was calculated by calculating the square root of squares of the differences between the values of L, a, and b before and after dropping water and oil, based on JIS P 8150.
※ 2) The mismatch was measured based on JIS P 8124 under JIS P 8111 environment.
※ 3) Used oil was "Nissin salad oil" manufactured by Nissin OilliO Group Co., Ltd., and water was ion-exchanged water.
* 4) The discrimination of water and oil absorption was evaluated by visual inspection of "a state in which 1 drop of water or oil was dropped on the attached sheet" by 8 persons, and whether or not the absorbed portion could be clearly identified was evaluated as? (Slightly worsened), x (poor), O (slightly worsened), DELTA (slightly worse), and x (bad).
From the results shown in Table 1, it can be understood that the visibility of the absorption point is excellent in the kitchen paper related to the present invention.
INDUSTRIAL APPLICABILITY As described above, according to the present invention, a kitchen paper excellent in visibility of a liquid-absorbing point at the time of liquid absorption is provided.
One… Surface sheet, 2 ... Back sheet, 3 ... Adhesive, e ... Emboss, t ... The heaven of emboss, b ... The bottom of the emboss, X1 ... Kitchen paper.
Claims (5)
Wherein the embossed embossed portion of the sheet constituting the surface side and the embossed bottom portion of the sheet constituting the back side are opposed to each other.
A sanitary papermaking paper having a basis weight of a surface sheet larger than a basis weight of a colored sheet containing undecomposed pulp as a raw material.
Wherein the basis weight of the white sheet constituting the surface layer is higher than the basis weight of the colored sheet containing the non-discolored pulp adjacent thereto.
Wherein the thickness of the paper of the topsheet is thicker than the thickness of the paper of the colored sheet containing undecomposed pulp as a raw material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009047375A JP5305986B2 (en) | 2009-02-27 | 2009-02-27 | Sanitary tissue paper |
| JPJP-P-2009-047375 | 2009-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20100098315A KR20100098315A (en) | 2010-09-06 |
| KR101673596B1 true KR101673596B1 (en) | 2016-11-07 |
Family
ID=42652584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100017144A KR101673596B1 (en) | 2009-02-27 | 2010-02-25 | Sanitary tissue paper |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5305986B2 (en) |
| KR (1) | KR101673596B1 (en) |
| CN (1) | CN101817242B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101130670B1 (en) | 2009-11-23 | 2012-04-02 | 김종욱 | Hygienic toilet paper |
| GR1008157B (en) * | 2011-11-25 | 2014-04-02 | Πλαστικα Ελλαδος Αβεε, | Dual-use and dual-colour kitchen paper roll |
| GR1008158B (en) * | 2011-11-25 | 2014-04-02 | Πλαστικα Ελλαδος Αβεε, | Dual-colour sanitary paper roll |
| CN102578945A (en) * | 2012-02-21 | 2012-07-18 | 金红叶纸业集团有限公司 | Multi-layer living paper |
| CN103835188A (en) * | 2012-11-21 | 2014-06-04 | 上海东冠纸业有限公司 | High performance S type embossed kitchen paper |
| JP6186482B1 (en) * | 2016-09-23 | 2017-08-23 | 日本製紙クレシア株式会社 | Toilet roll |
| JP6461448B1 (en) * | 2017-03-02 | 2019-01-30 | 大王製紙株式会社 | Sanitary tissue paper |
| CN108867180B (en) * | 2017-05-16 | 2022-10-04 | 金红叶纸业(南通)有限公司 | Household paper and preparation method thereof |
| JP7138420B2 (en) * | 2017-09-29 | 2022-09-16 | 大王製紙株式会社 | Nonwoven duster and method for producing nonwoven duster |
| CN109208386A (en) * | 2018-09-11 | 2019-01-15 | 重庆龙璟纸业有限公司 | A kind of true qualities bamboo pulp paper for kitchen and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008081892A (en) * | 2006-09-27 | 2008-04-10 | Daio Paper Corp | Sanitary tissue paper |
| WO2008072661A1 (en) * | 2006-12-13 | 2008-06-19 | Daio Paper Corporation | Kitchen paper |
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| CN1072229A (en) * | 1991-11-13 | 1993-05-19 | 郭凯 | Compound paper capable of writing with water |
| JP3711477B2 (en) * | 1995-07-19 | 2005-11-02 | 三島製紙株式会社 | Multifunctional decorative paper |
| ZA9710010B (en) * | 1996-11-14 | 1998-05-25 | Procter & Gamble | Paper web having a relatively thinner continuous network region and discrete relatively thicker regions in the plane of the continuous network region. |
| US6030690A (en) * | 1997-04-23 | 2000-02-29 | The Procter & Gamble Company | High pressure embossing and paper produced thereby |
| JP3980190B2 (en) * | 1998-08-04 | 2007-09-26 | 三島製紙株式会社 | Colored absorbent material with discontinuous white oil absorption display |
| JP2001145517A (en) * | 1999-11-19 | 2001-05-29 | Mishima Paper Co Ltd | Oil absorbing tissue |
| JP2004322034A (en) * | 2003-04-28 | 2004-11-18 | Crecia Corp | Working method of sanitary tissues, and its working machine |
| US20050247416A1 (en) * | 2004-05-06 | 2005-11-10 | Forry Mark E | Patterned fibrous structures |
| JP4585231B2 (en) * | 2004-05-17 | 2010-11-24 | 大王製紙株式会社 | Household tissue paper |
| JP2006095263A (en) | 2004-08-31 | 2006-04-13 | Katsuhiko Shirakawa | Medical equipment monitoring device |
| JP4431995B2 (en) * | 2005-06-09 | 2010-03-17 | 高知県 | Manufacturing method of embossed crepe paper |
| JP4833622B2 (en) | 2005-06-16 | 2011-12-07 | 大王製紙株式会社 | Sanitary tissue paper |
| JP4833784B2 (en) | 2005-06-16 | 2011-12-07 | 大王製紙株式会社 | Sanitary tissue paper |
| KR101329533B1 (en) * | 2005-09-21 | 2013-11-15 | 라이온 가부시키가이샤 | Sanitary tissue paper |
| JP4919219B2 (en) * | 2006-02-17 | 2012-04-18 | 株式会社タイキ | Cosmetic degrease paper |
-
2009
- 2009-02-27 JP JP2009047375A patent/JP5305986B2/en not_active Expired - Fee Related
-
2010
- 2010-02-25 KR KR1020100017144A patent/KR101673596B1/en active IP Right Grant
- 2010-02-26 CN CN201010124859.5A patent/CN101817242B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008081892A (en) * | 2006-09-27 | 2008-04-10 | Daio Paper Corp | Sanitary tissue paper |
| WO2008072661A1 (en) * | 2006-12-13 | 2008-06-19 | Daio Paper Corporation | Kitchen paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5305986B2 (en) | 2013-10-02 |
| CN101817242B (en) | 2014-04-02 |
| KR20100098315A (en) | 2010-09-06 |
| JP2010202990A (en) | 2010-09-16 |
| CN101817242A (en) | 2010-09-01 |
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