JP2015223468A - Sanitary tissue paper - Google Patents

Sanitary tissue paper Download PDF

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JP2015223468A
JP2015223468A JP2014112080A JP2014112080A JP2015223468A JP 2015223468 A JP2015223468 A JP 2015223468A JP 2014112080 A JP2014112080 A JP 2014112080A JP 2014112080 A JP2014112080 A JP 2014112080A JP 2015223468 A JP2015223468 A JP 2015223468A
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paper
sanitary thin
thin paper
powder
base paper
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村田 剛
Takeshi Murata
剛 村田
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Nippon Paper Crecia Co Ltd
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Nippon Paper Crecia Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide sanitary tissue paper having an excellent surface nature even with a small amount of application to base paper.SOLUTION: Sanitary tissue paper is obtained by the application of 3 wt.% or more and less than 12 wt.% of a chemical solution component comprising 0.06-0.2 wt.% of water-insoluble powder with an average particle diameter of 8-20 μm relative to base paper.

Description

本発明は、ティシュペーパー、トイレットペーパー、ハンドタオル等の衛生薄葉紙に関する。   The present invention relates to sanitary thin paper such as tissue paper, toilet paper, and hand towels.

従来から、ティシュペーパー、トイレットペーパー、ハンドタオル等の衛生薄葉紙の風合いを向上させるため、パルプ等の原料の配合、柔軟剤等の薬品の添加、保湿成分や平滑成分を配合したローション薬液を塗工することが行われている。
このうち、ローション薬液としては、グリセリンやソルビトールなどの保湿性水性成分に、ミネラルオイル、シリコーン樹脂、界面活性剤等の潤滑剤を混合したものを使用することが多い(特許文献1)。又、このローション液を塗工する場合、水性特有のしっとりしたしなやかさを発揮するためには、ローション液を紙重量に対して15wt%以上塗工することが好ましい。
Conventionally, in order to improve the texture of sanitary thin paper such as tissue paper, toilet paper, hand towels, etc., blending raw materials such as pulp, adding chemicals such as softeners, applying lotion chemicals containing moisturizing ingredients and smoothing ingredients To be done.
Of these, lotion chemicals are often used in which a lubricant such as mineral oil, silicone resin, or surfactant is mixed with a moisturizing aqueous component such as glycerin or sorbitol (Patent Document 1). When applying this lotion liquid, it is preferable to apply the lotion liquid at 15 wt% or more with respect to the paper weight in order to exhibit the moist and suppleness characteristic of water.

特許第3289877号公報Japanese Patent No. 3289877

しかしながら、ローション液を原紙に多量に塗工する場合、塗工設備の負荷が多くなったり、品質管理が煩雑になるという問題がある。更には、工程中から排出される排水や損紙の処理の負荷も高くなることが懸念される。
従って本発明は、原紙への塗工量が少なくても表面性に優れた衛生薄葉紙の提供を目的とする。
However, when a lotion liquid is applied to a base paper in large quantities, there are problems that the load on the coating equipment increases and the quality control becomes complicated. Furthermore, there is a concern that the load of waste water and waste paper discharged from the process will increase.
Accordingly, an object of the present invention is to provide a sanitary thin paper having excellent surface properties even when the amount of coating on the base paper is small.

上記課題を解決するため、本発明の衛生薄葉紙は、平均粒径8〜20μmの非水溶性の粉体を原紙に対して0.06〜0.2wt%含有する薬液成分を、3wt%以上、12wt%未満塗工してなる。   In order to solve the above-mentioned problem, the sanitary thin paper of the present invention comprises 3 wt% or more of a chemical component containing 0.06 to 0.2 wt% of water-insoluble powder having an average particle size of 8 to 20 µm with respect to the base paper. It is formed by applying less than 12 wt%.

前記粉体は、タルク、ポリエチレン、ポリエチレン−ポリアクリル酸共重合体、ナイロン、又はポリエチレンテレフタレートの群から選ばれる1種以上からなることが好ましい。   The powder is preferably made of at least one selected from the group consisting of talc, polyethylene, polyethylene-polyacrylic acid copolymer, nylon, and polyethylene terephthalate.

前記原紙を構成するシート1枚当たりの坪量が8〜16g/m2であり、JIS P8113に従って測定した前記衛生薄葉紙の乾燥時のMD方向及びCD方向の引張り強さをそれぞれDMD及びDCDとし、JIS P8135に従って測定した前記衛生薄葉紙の湿潤時のMD方向の引張り強さをWMDTとしたとき、DMDが2.4〜3.8(N/25mm)、DCDが0.7〜1.3(N/25mm)、WMDTが1.2〜2.0(N/25mm)であることが好ましい。 The basis weight per sheet constituting the base paper is 8 to 16 g / m 2 , and the tensile strength in the MD direction and the CD direction when the sanitary thin paper is measured according to JIS P8113 is DMD and DCD, respectively. DMD is 2.4 to 3.8 (N / 25 mm) and DCD is 0.7 to 1.3 (N) when the tensile strength in the MD direction when the sanitary thin paper is measured according to JIS P8135 is WMDT. / 25 mm) and WMDT are preferably 1.2 to 2.0 (N / 25 mm).

この発明によれば、原紙への塗工量が少なくても表面性に優れた衛生薄葉紙が得られる。   According to this invention, the sanitary thin paper excellent in surface property can be obtained even if the amount of coating on the base paper is small.

本発明の実施形態に係る衛生薄葉紙は、平均粒径8〜20μmの非水溶性の粉体を原紙に対して0.06〜0.2wt%含有する薬液成分を、3wt%以上、12wt%未満塗工してなる。   The sanitary thin paper according to the embodiment of the present invention comprises 3 wt% or more and less than 12 wt% of a chemical component containing 0.06 to 0.2 wt% of a water-insoluble powder having an average particle diameter of 8 to 20 µm with respect to the base paper. Coated.

<原紙>
原紙は、抄紙原料を抄紙してなる。上記抄紙原料としては、例えば針葉樹パルプ(NBKP)又は広葉樹パルプ(LBKP)などのバージンパルプや、古紙から再生した古紙パルプを用いることができる。これらパルプは衛生用紙の要求品質に合わせて、適宜所定の種類及び配合割合で適宜配合される。抄紙原料は、要求品質及び操業の安定のために様々な薬品を添加(内添)してもよく、これら薬品としては、柔軟剤、嵩高剤、染料、分散剤、湿潤紙力増強剤、乾燥紙力剤、濾水向上剤、ピッチコントロール剤、歩留向上剤などが挙げられる。
特に、原紙全体に対し、NBKPを20wt%以上配合することが強度の面から好ましい。
原紙は、公知の抄紙法により製造することができ、ウェブ(湿紙)を抄造した後、ヤンキードライヤーにより乾燥し、さらにクレーピングドクターによりクレーピング処理してリールに巻き取ることができる。
<Base paper>
The base paper is made from a papermaking raw material. As the papermaking raw material, for example, virgin pulp such as softwood pulp (NBKP) or hardwood pulp (LBKP), or used paper pulp regenerated from used paper can be used. These pulps are appropriately blended in predetermined types and blending ratios according to the required quality of sanitary paper. Various chemicals may be added (internally added) to the papermaking raw material for the required quality and stable operation. These chemicals include softeners, bulking agents, dyes, dispersants, wet paper strength enhancers, and drying agents. Examples thereof include paper strength agents, drainage improvers, pitch control agents, yield improvers, and the like.
In particular, NBKP is preferably blended in an amount of 20 wt% or more with respect to the entire base paper from the viewpoint of strength.
The base paper can be produced by a known paper making method, and after making a web (wet paper), it can be dried by a Yankee dryer, and further creped by a creping doctor and wound on a reel.

本発明の衛生薄葉紙に使用される原紙は、1枚のシートを1プライ又は2プライ以上に重ねたものとする。特に、3〜5プライが好ましい。3〜5プライとすると、シート1枚当たりの坪量が低く低強度となるため、薬液の塗布量が少ない場合でも風合いを改善するためには、薬液成分に粉体を配合することがより効果的である。
また、衛生薄葉紙を構成するシート1枚当たりの坪量を例えば8〜16g/m2とすることができる。
The base paper used for the sanitary thin paper of the present invention is obtained by stacking one sheet on one ply or two or more plies. 3 to 5 plies are particularly preferable. When 3 to 5 plies are used, the basis weight per sheet is low and the strength is low. Therefore, in order to improve the texture even when the amount of the chemical solution is small, it is more effective to add powder to the chemical component. Is.
Moreover, the basic weight per sheet | seat which comprises a sanitary thin paper can be 8-16 g / m < 2 >, for example.

<薬液成分>
原紙に塗工される薬液成分は、平均粒径8〜20μmの非水溶性の粉体と、親油性成分として植物油、動物油、鉱物油又は合成油から選ばれる1種または2種以上の成分と、親水性成分として多価アルコール又はベタイン構造物のうち少なくとも1種以上の成分と、を含むことができる。
非水溶性の粉体としては、例えばタルク、ポリエチレン、ポリエチレン−ポリアクリル酸共重合体、ナイロン、又はポリエチレンテレフタレートが挙げられる。
粉体の平均粒径は、レーザー回折・散乱法により求められるメジアン径(D50)である。粉体の平均粒径が8μm未満であると表面性の向上が感じられ難くなり、粉体の平均粒径が20μmを超えると、異物感が生じ、風合いが悪化することとなる。
また、粉体が球体であると、皮膚への刺激が低く、また薬液成分の塗工量のコントロールが容易であるので好ましい。なお、粉体が球体であるか否かは、マイクロスコープ等で粉体の外観を拡大したときに、目視で球体であるかを判定すればよい。球体としては、ポリエチレン、又はポリエチレン−アクリル酸共重合体の真球状粉体が挙げられる。
粉体に、二酸化チタン、銀イオン、銅イオン等により表面改質を行い、消臭、抗菌効果を付与しても良い。表面改質を行うことで粉体の比重が増加し、薬液成分の塗工工程での粉体の歩留まり向上にも寄与する。粉体の比重を1.0〜1.2g/mLとすると、薬液成分の比重に近くなり、薬液中で粉体が沈殿等し難くなって均一に塗布できるのでが好ましい。
<Chemical component>
The chemical component applied to the base paper is a water-insoluble powder having an average particle diameter of 8 to 20 μm, and one or more components selected from vegetable oil, animal oil, mineral oil or synthetic oil as a lipophilic component. In addition, at least one component of a polyhydric alcohol or a betaine structure can be included as a hydrophilic component.
Examples of the water-insoluble powder include talc, polyethylene, polyethylene-polyacrylic acid copolymer, nylon, and polyethylene terephthalate.
The average particle diameter of the powder is a median diameter (D50) determined by a laser diffraction / scattering method. When the average particle diameter of the powder is less than 8 μm, it is difficult to feel the improvement in surface properties, and when the average particle diameter of the powder exceeds 20 μm, a feeling of foreign matter is generated and the texture is deteriorated.
Further, it is preferable that the powder is a sphere because the irritation to the skin is low and the coating amount of the chemical component is easy to control. Whether or not the powder is a sphere may be determined by visual observation when the appearance of the powder is enlarged using a microscope or the like. Examples of the sphere include polyethylene or a true spherical powder of polyethylene-acrylic acid copolymer.
The powder may be surface-modified with titanium dioxide, silver ions, copper ions or the like to impart deodorant and antibacterial effects. The surface modification increases the specific gravity of the powder and contributes to the improvement of the yield of the powder in the chemical component coating process. When the specific gravity of the powder is 1.0 to 1.2 g / mL, it is close to the specific gravity of the chemical solution component, and it is preferable that the powder is difficult to precipitate in the chemical solution and can be applied uniformly.

親油性成分としては、例えばパラフィン油、シリコーン油が例示される。親水性成分としては、グリセリンが例示される。
又、薬液成分が界面活性剤を含んでもよい。更に、薬液成分の調合時に泡が発生すると、泡に粉体が移行しやすく歩留りが低下することから消泡剤を含むとよい。
薬液成分は水を含んでよい。
Examples of the lipophilic component include paraffin oil and silicone oil. An example of the hydrophilic component is glycerin.
Moreover, the chemical component may contain a surfactant. Furthermore, if bubbles are generated during the preparation of the chemical component, it is preferable to include an antifoaming agent because the powder tends to migrate to the bubbles and the yield decreases.
The chemical component may contain water.

薬液成分は、上記粉体を原紙(絶乾パルプ重量)に対して0.06〜0.2wt%含有する。
上記粉体の含有量が0.06wt%未満であると、粉体による風合いの向上効果が生じず、含有量が0.2wt%を超えても添加量に対する表面性の改善効果が低く、粉体が脱落してしまうなど問題が生じる。
なお、粉体の含有量の基準となる「原紙」は、上述のようにシートを2プライ以上に重ねた場合には、重ねた複数シートの質量である。
The chemical component contains 0.06 to 0.2 wt% of the powder with respect to the base paper (absolutely dry pulp weight).
When the content of the powder is less than 0.06 wt%, the effect of improving the texture due to the powder does not occur, and even when the content exceeds 0.2 wt%, the effect of improving the surface property relative to the added amount is low, and the powder Problems such as falling off the body.
Note that the “base paper” serving as a reference for the content of the powder is the mass of a plurality of stacked sheets when the sheets are stacked in two or more plies as described above.

又、薬液成分は、衛生薄葉紙に対して3wt%以上、12wt%未満塗工されている。薬液成分の塗工量が3wt%未満であると、粉体による風合いの向上効果が生じず、塗工量が12wt%以上となると、シートのウエット感が強くなる。
なお、薬液成分の含有量は、JIS P 8111(1998)の標準状態における衛生薄葉紙を基準としたとき、この衛生薄葉紙に含まれる乾燥状態(絶乾)の薬液成分の含有量である。従って、水分を除く薬液成分の含有量である。
又、薬液成分の含有量は、原紙に塗工した総含有量である。従って、原紙に両面塗工した場合は、両面の薬液成分の含有量の合計である。
Further, the chemical component is applied to the sanitary thin paper by 3 wt% or more and less than 12 wt%. When the coating amount of the chemical component is less than 3 wt%, the effect of improving the texture by the powder does not occur, and when the coating amount is 12 wt% or more, the wet feeling of the sheet becomes strong.
In addition, content of a chemical | medical solution component is content of the chemical | medical solution component of the dry state (absolutely dry) contained in this sanitary thin paper, when based on the sanitary thin paper in the standard state of JISP8111 (1998). Therefore, the content of the chemical component excluding moisture.
Further, the content of the chemical component is the total content applied to the base paper. Therefore, when both sides are coated on the base paper, it is the total content of the chemical components on both sides.

以上のように薬液成分が塗工された衛生薄葉紙の強度として、DMDを2.4〜3.8(N/25mm)、DCDを0.7〜1.3(N/25mm)、WMDTを1.2〜2.0(N/25mm)とすることができる。
DMD及びDCDは、それぞれ衛生薄葉紙の乾燥時のMD方向及びCD方向の引張り強さであり、JIS P8113に従って測定する。WMDTは衛生薄葉紙の湿潤時のMD方向の引張り強さであり、JIS P8135(紙及び板紙?湿潤引張強さ試験方法)に従って測定する。但し、測定時の試料幅は25mmとし、DMD及びDCDの単位は「N/25mm」とする。
As described above, the strength of the sanitary thin paper coated with the chemical components is as follows: DMD is 2.4 to 3.8 (N / 25 mm), DCD is 0.7 to 1.3 (N / 25 mm), and WMDT is 1 0.2 to 2.0 (N / 25 mm).
DMD and DCD are the tensile strengths in the MD direction and CD direction when drying sanitary thin paper, respectively, and are measured according to JIS P8113. WMDT is the tensile strength in the MD direction when sanitary thin paper is wet, and is measured according to JIS P8135 (paper and paperboard—wet tensile strength test method). However, the sample width at the time of measurement is 25 mm, and the unit of DMD and DCD is “N / 25 mm”.

このように、粉体を含有した薬液成分を用いることで、原紙への薬液成分の塗工量が少なくても表面性に優れた衛生薄葉紙が得られる。   As described above, by using the chemical component containing the powder, a sanitary thin paper having excellent surface properties can be obtained even if the amount of the chemical component applied to the base paper is small.

本発明は上記した実施形態に限定されず、本発明の思想と範囲に含まれる様々な変形及び均等物に及ぶことはいうまでもない。   It goes without saying that the present invention is not limited to the above-described embodiments, and extends to various modifications and equivalents included in the spirit and scope of the present invention.

以下、実施例を挙げて、本発明を具体的に説明するが、本発明は勿論これらの例に限定されるものではない。   EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these examples of course.

N−BKP:L−BKP 20:80(質量割合)からなり湿潤紙力増強剤を含んだシートを抄紙し、プライマシンで4プライに加工し、ティシュペーパー原紙を製造した。
この原紙(絶乾パルプ重量)に対し、ローターダンプニング方式にて薬液成分を表1に示す塗工量で両面に塗工し、衛生薄葉紙を得た。薬液成分は、表1に示す粉体を2wt%、グリセリン(純分85%、残部水)を83.0wt%、アミノ変性シリコーンオイルを15.0wt%の割合で調製した。
さらに、薬液塗布後、必要に応じてカレンダー処理を行い、得られた衛生薄葉紙のロールをロータリー式インターフォルダーにて折り畳み、ポップアップ式のティシュペーパーとして箱詰めした。
A sheet made of N-BKP: L-BKP 20:80 (mass ratio) and containing a wet paper strength enhancer was made and processed into 4 plies with a ply machine to produce a tissue paper base paper.
This base paper (absolutely dry pulp weight) was coated on both sides with the coating amount shown in Table 1 by the rotor dampening method to obtain sanitary thin paper. The chemical components were prepared in the proportions of 2 wt% of the powder shown in Table 1, 83.0 wt% of glycerin (pure content 85%, remaining water), and 15.0 wt% of amino-modified silicone oil.
Furthermore, after chemical | medical solution application | coating, the calendar process was performed as needed, the roll of the obtained sanitary thin paper was folded in the rotary type | system | group interfolder, and was packed as pop-up type | system | group tissue paper.

<坪量>
JIS P 8124に従って測定し、シート1枚当たりに換算した。
<紙厚>
シックネスゲージ(尾崎製作所製;ダイヤルシックネスゲージ「PEACOCK」)を用いて測定した。測定条件は、測定荷重250gf、測定子直径30mmで、測定子と測定台の間に試料を置き、測定子を1秒間に1mm以下の速度で下ろしたときのゲージを読み取った。なお、1回の測定は試料を3枚(12ply)重ねて測定し、4/12を乗じて4プライ当たりの紙厚みを求めた。測定を10回繰り返して測定結果を平均した。
<引張り強さ>
得られた衛生薄葉紙の乾燥時のMD方向及びCD方向の引張り強さを、JIS P8113に従って測定した。又、衛生薄葉紙の湿潤時のMD方向の引張り強さを、JIS P8135に従って測定した。試料幅は25mmとした。なお、乾燥時のMD方向及びCD方向の引張り強さをそれぞれDMD及びDCDで表し、湿潤時のMD方向の引張り強さをWMDTで表す。又、引張り強さ(DMD)測定時の破断伸びを「伸び」とした。
<Basis weight>
Measured according to JIS P 8124 and converted per sheet.
<Paper thickness>
The thickness was measured using a thickness gauge (manufactured by Ozaki Seisakusho; dial thickness gauge “PEACOCK”). The measurement conditions were a measurement load of 250 gf, a probe diameter of 30 mm, a sample was placed between the probe and the measurement table, and the gauge when the probe was lowered at a speed of 1 mm or less per second was read. One measurement was performed by stacking three samples (12 ply) and multiplying by 4/12 to obtain the paper thickness per 4 plies. The measurement was repeated 10 times and the measurement results were averaged.
<Tensile strength>
The tensile strength of MD direction and CD direction at the time of drying of the obtained sanitary thin paper was measured according to JIS P8113. Further, the tensile strength in the MD direction when the sanitary thin paper was wet was measured according to JIS P8135. The sample width was 25 mm. In addition, the tensile strength of MD direction at the time of drying and CD direction is represented by DMD and DCD, respectively, and the tensile strength of MD direction at the time of wetness is represented by WMDT. The elongation at break when measuring the tensile strength (DMD) was defined as “elongation”.

<吸水度>
旧JIS−S3104法に従い、温度23±1℃、湿度50±2%の状態で、0.1mlの精製水を衛生薄葉紙の薬液塗工面(本例では両面のうちいずれかの面)に滴下し、水滴が吸収される時間(秒)を測定した。
具体的には、以下のように測定した。まず、1滴の滴下量が0.1mlとなるように調整されたピペットを準備した。試験片を保持枠に取り付け、試験片上10mmの高さから上記温度℃の蒸留水をピペットで0.1ml滴下した。水滴が試験片に到達してから水の鏡面反射が完全になくなるまでの時間をストップウォッチで0.1秒単位で測定した。試験を5回行い、その平均値を吸水速度(秒)として評価した。
<Water absorption>
In accordance with the old JIS-S3104 method, 0.1 ml of purified water is dropped on the surface of the sanitary thin paper coated with chemicals (in this example, either side) at a temperature of 23 ± 1 ° C and a humidity of 50 ± 2%. The time (seconds) for the water droplets to be absorbed was measured.
Specifically, the measurement was performed as follows. First, a pipette adjusted so that the drop amount of one drop was 0.1 ml was prepared. The test piece was attached to the holding frame, and 0.1 ml of distilled water having the above temperature was dropped from a height of 10 mm above the test piece with a pipette. The time from when the water droplets reached the test piece until the specular reflection of water completely disappeared was measured with a stopwatch in units of 0.1 second. The test was performed 5 times, and the average value was evaluated as the water absorption rate (seconds).

<ハンドフィール>
パネラー10名により、衛生薄葉紙の手触り感(滑らかさ、ふんわり感、しなやかさ)と、拭取り性(鼻かみの適性、化粧落としの適性)とを評価した。評価は、日本製紙クレシア社製の製品名「クリネックスティシュー ローションX」)を基準とし、下記の相対評価を行った。そして、各モニターの評価から平均値を算出した。ハンドフィールが3.5以上であれば、基準を超えて良好である。
5:非常に優れている
4:優れている
3:基準と同等
2:劣る
1:非常に劣る
<Hand feel>
Ten panelists evaluated sanitary thin paper touch (smoothness, softness, suppleness) and wiping (appropriate nose cover, makeup removal). The following relative evaluation was performed based on the product name “Kleenex Stitch Lotion X” manufactured by Nippon Paper Crecia Co., Ltd. And the average value was computed from evaluation of each monitor. If the hand feel is 3.5 or more, it is better than the standard.
5: Very good 4: Excellent 3: Equivalent to standard 2: Inferior 1: Very inferior

なお、坪量、紙厚、引張試験、吸水度、ハンドフィールの測定は、JIS-P8111に規定する温湿度条件下(23±1℃、50±2%RH)で平衡状態に達した後に行った。
得られた結果を表1に示す。
表1の「PEビーズ」は球状ポリエチレン粉体を表し、マイクロスコープで拡大して視認したところ、球体の外観を有していた。
The basis weight, paper thickness, tensile test, water absorption, and hand feel are measured after reaching the equilibrium state under the temperature and humidity conditions specified in JIS-P8111 (23 ± 1 ° C, 50 ± 2% RH). It was.
The obtained results are shown in Table 1.
The “PE beads” in Table 1 represent spherical polyethylene powder, which had a spherical appearance when enlarged and viewed with a microscope.

Figure 2015223468
Figure 2015223468

表1から明らかなように、各実施例の場合、原紙への薬液成分の塗工量が少なくても表面性に優れた衛生薄葉紙が得られた。
一方、薬液成分の塗工量が衛生薄葉紙に対して3wt%未満である比較例1の場合、ハンドフィールが劣った。
薬液成分中の粉体の平均粒径が6μm未満である比較例2の場合、及び薬液成分中の粉体の平均粒径が20μmを超えた比較例3の場合、いずれもハンドフィールが劣った。
薬液成分の塗工量が衛生薄葉紙に対して12wt%以上の比較例4の場合、WMDTが1.2(N/25mm)未満となって強度が低下した。
As is apparent from Table 1, in each example, a sanitary thin paper excellent in surface properties was obtained even when the amount of the chemical component applied to the base paper was small.
On the other hand, in the case of Comparative Example 1 in which the coating amount of the chemical component was less than 3 wt% with respect to the sanitary thin paper, the hand feel was inferior.
In the case of Comparative Example 2 in which the average particle size of the powder in the chemical component is less than 6 μm and in Comparative Example 3 in which the average particle size of the powder in the chemical component exceeds 20 μm, the hand feel is inferior. .
In the case of Comparative Example 4 in which the coating amount of the chemical component was 12 wt% or more with respect to the sanitary thin paper, the WMDT was less than 1.2 (N / 25 mm) and the strength was lowered.

Claims (3)

平均粒径8〜20μmの非水溶性の粉体を原紙に対して0.06〜0.2wt%含有する薬液成分を、3wt%以上、12wt%未満塗工してなる衛生薄葉紙。   Sanitary thin paper obtained by coating 3 wt% or more and less than 12 wt% of a chemical component containing 0.06 to 0.2 wt% of water-insoluble powder having an average particle size of 8 to 20 µm with respect to the base paper. 前記粉体は、タルク、ポリエチレン、ポリエチレン−ポリアクリル酸共重合体、ナイロン、又はポリエチレンテレフタレートの群から選ばれる1種以上からなる請求項1記載の衛生薄葉紙。   The sanitary thin paper according to claim 1, wherein the powder comprises at least one selected from the group consisting of talc, polyethylene, polyethylene-polyacrylic acid copolymer, nylon, and polyethylene terephthalate. 前記原紙を構成するシート1枚当たりの坪量が8〜16g/m2であり、
JIS P8113に従って測定した前記衛生薄葉紙の乾燥時のMD方向及びCD方向の引張り強さをそれぞれDMD及びDCDとし、JIS P8135に従って測定した前記衛生薄葉紙の湿潤時のMD方向の引張り強さをWMDTとしたとき、
DMDが2.4〜3.8(N/25mm)、DCDが0.7〜1.3(N/25mm)、WMDTが1.2〜2.0(N/25mm)である請求項1又は2記載の衛生薄葉紙。
The basis weight per sheet constituting the base paper is 8 to 16 g / m 2 ,
The tensile strength in the MD direction and the CD direction during drying of the sanitary thin paper measured according to JIS P8113 was DMD and DCD, respectively, and the tensile strength in the MD direction when the sanitary thin paper was measured according to JIS P8135 was defined as WMDT. When
DMD is 2.4 to 3.8 (N / 25 mm), DCD is 0.7 to 1.3 (N / 25 mm), and WMDT is 1.2 to 2.0 (N / 25 mm). 2. The sanitary thin paper according to 2.
JP2014112080A 2014-05-30 2014-05-30 Sanitary tissue paper Pending JP2015223468A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09296389A (en) * 1996-05-07 1997-11-18 Kureshia:Kk Agent for improving quality of thin paper and flexible thin paper using the same, and its production
JP2001279596A (en) * 2000-03-29 2001-10-10 Wakoudou Kk Waterdisintegrable paper and method for producing the same
US20060121207A1 (en) * 2004-12-02 2006-06-08 Prodoehl Michael S Process for making a fibrous structure comprising an additive
JP2008006273A (en) * 2006-06-02 2008-01-17 Lion Corp Tissue paper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09296389A (en) * 1996-05-07 1997-11-18 Kureshia:Kk Agent for improving quality of thin paper and flexible thin paper using the same, and its production
JP2001279596A (en) * 2000-03-29 2001-10-10 Wakoudou Kk Waterdisintegrable paper and method for producing the same
US20060121207A1 (en) * 2004-12-02 2006-06-08 Prodoehl Michael S Process for making a fibrous structure comprising an additive
JP2008006273A (en) * 2006-06-02 2008-01-17 Lion Corp Tissue paper

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