JP3410123B2 - How to fold paper sheets - Google Patents
How to fold paper sheetsInfo
- Publication number
- JP3410123B2 JP3410123B2 JP31846292A JP31846292A JP3410123B2 JP 3410123 B2 JP3410123 B2 JP 3410123B2 JP 31846292 A JP31846292 A JP 31846292A JP 31846292 A JP31846292 A JP 31846292A JP 3410123 B2 JP3410123 B2 JP 3410123B2
- Authority
- JP
- Japan
- Prior art keywords
- paper sheet
- convex portion
- pattern
- concave portion
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、紙シートの折り畳み方
法に関し、更に詳述すれば、立体的な凹凸のエンボス模
様を施した紙シートの折り畳み方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for folding a paper sheet, and more particularly to a method for folding a paper sheet having an embossed pattern of three-dimensional unevenness.
【０００２】[0002]
【従来の技術】紙シートにエンボス模様を施すと、その
シートに嵩高性が付与されることは、一般に良く知られ
ている。この嵩高性は、消費者が使用する際の柔らかさ
や吸収性に関連しているために、紙シートの製造におい
ては、特に重要な特性の一つである。また、紙シートの
嵩高さは一枚一枚の感触ばかりでなく、製品の包装に関
しても重要である。紙シートの場合、製品は一枚のシー
トを幾重にか折り畳み、これを所定の枚数に集積して包
装される。また、ロール状に巻取って包装を行う方法も
ある。包装はカートン、ピロー、容器等あるが、包装寸
法に対して所定のシート枚数の集積高さ、若しくは巻径
ができるだけ同じになるように維持することが望まれ
る。2. Description of the Related Art It is generally well known that embossing a paper sheet gives the sheet a bulkiness. This bulkiness is one of the particularly important properties in the manufacture of paper sheets, as it is related to the softness and absorbency of the consumer when using it. Further, the bulkiness of a paper sheet is important not only for the feel of each sheet, but also for the packaging of products. In the case of paper sheets, the product is packaged by folding a single sheet several times and stacking a predetermined number of sheets. There is also a method in which the material is wound into a roll and packaged. The packaging includes cartons, pillows, containers, etc., but it is desirable to maintain the stacking height of a predetermined number of sheets or the winding diameter as much as possible with respect to the packaging size.
【０００３】ところで、紙シートにエンボス模様を施す
方法としては以下に挙げる数種の方法がある。一つは、
ゴム製ロールと鋼鉄製エンボス用ロールとの間に通して
エンボスを行う方法である。また、二層のそれぞれのシ
ートをゴム製ロールと鋼鉄製エンボス用ロールの間に通
して別々にエンボスを施し、一方のシートの凸部分にロ
ーラーを用いて接着剤をつけ、且つ、一方のシートの凸
部分がもう一方のシートの凸部分に付着されるように二
層を組み合わせて嵩高さを出す方法がある。更に、一組
のエンボス用ロールがいずれも鋼鉄製で、一方のロール
の凸部分がもう一方のロールの凹部分に対応するように
模様が彫られているエンボスロールでエンボスを行う方
法がある。By the way, there are the following several methods for applying an embossed pattern to a paper sheet. one,
This is a method of embossing by passing it between a rubber roll and a steel embossing roll. Also, each sheet of the two layers is separately embossed by passing between a rubber roll and a steel embossing roll, and an adhesive is applied to the convex portion of one sheet using a roller, and one sheet is There is a method of combining two layers so that the convex portion of the sheet is attached to the convex portion of the other sheet to give bulkiness. Further, there is a method of performing embossing with an embossing roll in which each set of embossing rolls is made of steel and a pattern is engraved so that the convex portion of one roll corresponds to the concave portion of the other roll.
【０００４】[0004]
【発明が解決しようとする問題】しかしながら、このよ
うに製造した紙シートの嵩高性には問題がある。例え
ば、上記ゴム製ロールと鋼鉄製エンボス用ロールとを用
いた方法は、簡単ではあるが、紙シートの表と裏で模様
の違いが出ることや、嵩高さが生じ難いということがあ
った。また、二層に組み合わせた紙シートは、その製法
で二つのゴム／鋼鉄のニップが必要であり、ローラー型
の接着材アプリケータを有することが必要である点にお
いて、煩雑であった。更に、鋼鉄製の凹凸部を有するロ
ールによる紙シートでは、表裏がなく、嵩高さの高い紙
シートが得られるが、その紙シートを折り畳んだ際には
エンボス模様の凸部分が凹部分に重なり合い、折り畳み
後の紙シートの嵩高さが低減する問題があった。また、
エンボス模様の紙シートの一方の凸部分がもう一方の凸
部分と重なり合った場合は、折り畳んだ紙シートの嵩が
高く、また、一方の凸部分がもう一方の凹部分と重なり
あった場合は、折り畳んだ紙シートの嵩が低くなるとい
うふうに、嵩にばらつきが生じ、集積後の製品の容積に
も影響を及ぼし、問題となっていた。本発明の目的は、
折り重ねた後の紙シートの嵩高さに優れ、包装後の内容
量の嵩高さを一定に維持することができエンボス模様を
有する紙シートの折り畳み方法を提供することにある。However, there is a problem in the bulkiness of the paper sheet manufactured in this way. For example, although the method using the rubber roll and the steel embossing roll is simple, there are cases in which a difference in pattern occurs between the front and back of the paper sheet, and bulkiness hardly occurs. Also, the two-layer combined paper sheet was cumbersome in that it required two rubber / steel nips in its manufacturing process and a roller-type adhesive applicator. Furthermore, with a paper sheet made of a roll having an uneven portion made of steel, there is no front and back, and a high bulky paper sheet is obtained, but when the paper sheet is folded, the convex portion of the embossed pattern overlaps the concave portion, There is a problem that the bulkiness of the paper sheet after folding is reduced. Also,
If one convex part of the embossed paper sheet overlaps the other convex part, the bulk of the folded paper sheet is high, and if one convex part overlaps the other concave part, There is a problem in that the volume of the folded paper sheet becomes low, and the volume of the product after the stacking varies. The purpose of the present invention is to
An object of the present invention is to provide a method for folding a paper sheet having an embossed pattern, which is excellent in the bulkiness of the paper sheet after being folded and can keep the bulkiness of the inner volume after packaging constant.
【問題点を解決するための手段】本発明者等は上記の目
的を達成するために鋭意研究の結果、本発明を完成する
に至った。即ち、本発明のエンボス模様を有する紙シー
トの折り畳み方法は、一面の凸部分と凹部分が、その反
対面のそれぞれの凹部分と凸部分に対応して対称に形成
してあり、且つ一面の該凸部分と該一面の該凹部分とが
規則的に形成されたエンボス模様を有した紙シートを、
該エンボス模様の凸部分と凹部分とが非対称となる線に
沿って折り畳むことを特徴とする。上述の紙シートを非
対称となる線で折り込むと、エンボス模様の凸部分が模
様の凹部分に完全に重なり合うことはなく、折り重ねた
後のシートの嵩高が低下せず、嵩高にばらつきによる容
積の変動が少ない。[Means for Solving the Problems] The inventors of the present invention have completed the present invention as a result of intensive research to achieve the above-mentioned object. That is, the method folding the paper sheet having the embossed pattern of the present invention, the convex portion and the concave portion of one surface, Ri tare formed symmetrically to correspond to each of the concave portion and the convex portion of the opposite surface thereof, and one surface Of the convex portion and the concave portion of the one surface
A paper sheet with a regularly formed embossed pattern,
The convex portion and the concave portion of the embossed pattern, characterized in that the folding along <br/> a line becomes asymmetric. When the above-mentioned paper sheet is folded along an asymmetric line, the convex portion of the embossed pattern does not completely overlap the concave portion of the pattern, the bulkiness of the sheet after folding is not reduced, and the volume due to variation in bulkiness is reduced. There is little fluctuation.
【０００５】以下、添付図面に従って本発明の好ましい
実施態様を説明する。図１は本実施態様に於ける紙シー
トの平面図であり、図２は図１の紙シートのＡ−Ａ線或
いはＢ−Ｂ線に沿った断面図であり、図３は、図１の紙
シートを４５°回転させた平面図であり、図４は、図１
の紙シートのエンボス模様形成の工程図であり、図５
は、図４の工程におけるエンボスロール部の要部説明図
である。図１及び図２に示す如く、本実施態様の折り畳
み方法で用いられるエンボス模様を有する紙シート１
は、一面１Ａの凸部分２と凹部分３が、その反対面１Ｂ
のそれぞれの凹部分３と凸部分２に対応して形成してあ
るエンボス模様を有している。しかして、本実施例態様
の折り畳み方法は、紙シート１を、エンボス模様の凸部
分２と凹部分３とが非対称となる線（図１のＣ−Ｃ線及
びＤ−Ｄ線、或いは図３のＥ−Ｅ線及びＦ−Ｆ線）に沿
って折り畳むことを特徴とする。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a plan view of the paper sheet according to this embodiment, FIG. 2 is a cross-sectional view taken along the line AA or BB of the paper sheet of FIG. 1, and FIG. FIG. 4 is a plan view of the paper sheet rotated by 45 °, and FIG.
5 is a process chart of forming an embossed pattern on the paper sheet of FIG.
[Fig. 5] is a main part explanatory view of an embossing roll portion in the step of Fig. 4. As shown in FIGS. 1 and 2, a paper sheet 1 having an embossed pattern used in the folding method of the present embodiment.
Is the convex portion 2 and the concave portion 3 of the one surface 1A, and the opposite surface 1B
1 has an embossed pattern formed corresponding to each of the concave portion 3 and the convex portion 2. Thus, the folding method of this embodiment aspect, the paper sheet 1, the embossed pattern of the convex portion 2 and concave portion 3 and is asymmetrical line (C-C line and D-D line in FIG. 1, or 3 It is characterized in that it is folded along the line EE and the line FF ).
【０００６】本実施態様を更に詳述すると、第１図に描
かれている様なエンボス模様の紙シート１をエンボス模
様の凸部分２と凹部分３とを交互に通り凸部分２と凹部
分３とに於いて対称となる線、即ち、線Ａ−Ａ及びＢ−
Ｂ（互いに直交する対称線）に平行な線に対して折り込
むと、折り位置が位相し、模様の凸部分２が凹部分３に
完全に重なり合う場合がある。その結果、幾重にか折り
畳んだ後の紙シートは、嵩が非常に低くくばらつくもの
となってしまう。To explain this embodiment in more detail, a paper sheet 1 having an embossed pattern as shown in FIG. 1 is alternately passed through convex portions 2 and concave portions 3 of the embossed pattern to form convex portions 2 and concave portions. Lines that are symmetric with respect to 3, that is, lines A-A and B-
When folding is performed with respect to a line parallel to B (symmetrical lines orthogonal to each other), the folding positions may be in phase, and the convex portion 2 of the pattern may completely overlap the concave portion 3. As a result, the paper sheet after being folded several times has a very low bulk and becomes uneven.
【０００７】これに対して、エンボス模様の凸部分２と
凹部分３が非対称となる線、例えば線分Ｃ−Ｃ及びＤ−
Ｄに対して折り込むと、凸部分２の模様と凹部分３の模
様は必ずずれて、凸部分２が凹部分３に重なり合うこと
はなく、嵩が低減せず安定する。更に詳しく第３図で説
明すると、ここで、この線Ｄ−Ｄ及び線Ｄ−Ｄに平行で
凸部分２と凹部分３とが非対称となる線Ｅ−Ｅに沿って
折ったとき、これらの線と直交する線上には凸部分２の
みが存在する場合があり、模様の凸部分２同志が重なり
合い嵩高さが維持されることになる。また、線Ｆ−Ｆに
沿って折った場合は、模様の幅寸法ａより模様と模様の
間の長さｂが小さいとき、凸部分２同志が重なり合い嵩
高さが維持でき、ａ＜ｂのときは、凸部分２同志は重な
り合わないものの、凸部分２が凹部分３に落ち込むこと
はなく、大きな嵩の減少には至らない。これは線Ｄ−Ｄ
に垂直に折った場合も同様である。On the other hand, a line in which the convex portion 2 and the concave portion 3 of the embossed pattern are asymmetrical, for example, line segments C-C and D-
When folded against the D, the patterns of the pattern and the concave portion 3 of the convex portion 2 always shifted, convex portion 2 is not to overlap the concave portion 3, it is stabilized without reducing bulk. This will be described in more detail with reference to FIG. 3, in which the line DD and the line DD are parallel to each other .
When the convex portion 2 and the concave portion 3 are folded along the line EE, which is asymmetric, there may be only the convex portion 2 on a line orthogonal to these lines, and the convex portion 2 of the pattern is Overlapping bulkiness will be maintained. Also, when folded along the line FF, when the length b between the patterns is smaller than the width dimension a of the pattern, the convex portions 2 overlap each other and the bulkiness can be maintained, and when a <b , The convex portions 2 do not overlap each other, but the convex portions 2 do not fall into the concave portions 3, and the bulkiness does not decrease significantly. This is line DD
The same is true when folded vertically.
【０００８】上記紙シート１に於いて、図３に示す如
く、凸部分２と凹部分３を正方形状の模様とした。しか
し、図３のエンボス模様及び折り方法は、本発明の一例
にすぎず、これに限定されるものではない。例えば、エ
ンボス個々の模様は、長方形、亀甲形、円、楕円等であ
っても良く、その他刻設可能な模様であれば特に制限は
ない。尚、好ましくは凸部分２の模様と凹部分３の模様
は同形状であることが望ましい。また、上記実施態様に
おいて、エンボス模様の紙シート１は一層に限ることは
なく、複数層に形成されていてよい。In the above-mentioned paper sheet 1, as shown in FIG. 3, the convex portion 2 and the concave portion 3 have a square pattern. However, the embossed pattern and the folding method of FIG. 3 are merely examples of the present invention, and are not limited thereto. For example, each embossed pattern may be a rectangle, a hexagonal shape, a circle, an ellipse, or the like, and is not particularly limited as long as it can be engraved. It is preferable that the pattern of the convex portion 2 and the pattern of the concave portion 3 have the same shape. Further, in the above-described embodiment, the embossed paper sheet 1 is not limited to one layer, and may be formed in a plurality of layers.
【０００９】次に、本発明を実施するための装置の一例
を第４図の概略図にて説明する。一層以上からなる紙シ
ート１’を巻出し部１０より巻出し、上下ともに鋼鉄製
であり、一方のロールの凸部分がもう一方のロールの凹
部分に対応するように模様が彫られているエンボスロー
ル１１、１２に紙シート１’が繰り出される。この時の
エンボス模様は、例えば第３図の線分Ｄ−Ｄの様に、模
様の凸部分２と凹部分３が非対称となる線が流れ方向に
なる様に刻設されている。このエンボスロール１１、１
２に送り込まれた紙シート１’は、そこで、紙シートに
必要なエンボス模様が付与され、その結果、第５図に示
す様に凹凸模様を施された紙シート１として次工程の折
り工程に送り出されて巻き取り、或いは流れ方向（図３
のＤ−Ｄ線方向）及び流れ方向に垂直な方向に幾重にか
折り畳まれ、所定の枚数に集積され、製品化されてい
く。このときのエンボスロール１１、１２は、常温でも
いいし、加熱を行っても良い。これにより、嵩高な紙シ
ートを一定した嵩高さで巻き取り、或いは供給する方法
としては特に簡潔な方法となる。Next, an example of an apparatus for carrying out the present invention will be described with reference to the schematic view of FIG. An embossed sheet of paper 1'consisting of one or more layers is unwound from an unwinding section 10 and is made of steel on both sides, and a pattern is engraved so that the convex portion of one roll corresponds to the concave portion of the other roll. The paper sheet 1 ′ is delivered to the rolls 11 and 12. At this time, the embossed pattern is engraved so that a line in which the convex portion 2 and the concave portion 3 of the pattern are asymmetric is in the flow direction, for example, line segment D-D in FIG. This embossing roll 11,1
The paper sheet 1 ′ fed into 2 is then given the necessary embossed pattern on the paper sheet, and as a result, as a paper sheet 1 having an uneven pattern as shown in FIG. It is sent out and wound up, or the flow direction (Fig. 3
(D-D line direction) and several times in a direction perpendicular to the flow direction, and accumulated into a predetermined number of sheets to be commercialized. At this time, the embossing rolls 11 and 12 may be at room temperature or may be heated. As a result, it becomes a particularly simple method for winding or supplying a bulky paper sheet with a constant bulkiness.
【００１０】[0010]
【実施例】以下実施例にて本発明を説明するが、本発明
はこれらの実施例に限定されるものではない。評価は紙
シートの一枚の厚み、紙シートを４つ折りした後の厚
み、紙シートを８つ折りした後に１２枚集積した時の高
さを測定し、その結果を第１表にまとめた。実施例１
凸部分及び凹部分の個々のエンボス模様は図３に示すよ
うな正方形とし、折る方向は模様の対称線に対して４５
°の方向（図３のＤ−Ｄ線）とし、模様の寸法はａ＝
２．８mm、ｂ＝１．４mmとする。紙シートは１プライシ
ートが坪量３０ｇ／ｍ2 の２プライ接着したもので行っ
た。加工条件は、エンボスクリアランスは０ｍｍ、加工
速度は７５ｍｍ／ｍｉｎで行った。実施例２
凸部分及び凹部分の個々のエンボス模様は円形とし、折
る方向は模様の対称線に対して４５°の方向とし、模様
の寸法はａ＝２．０mm、ｂ＝１．９mmとする。紙シート
は実施例１と同じで、加工条件も実施例１と同条件で行
った。EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. For evaluation, the thickness of one paper sheet, the thickness after four paper sheets were folded, and the height after twelve paper sheets were stacked and 12 sheets were stacked were measured, and the results are summarized in Table 1. Example 1 The individual embossed patterns of the convex portion and the concave portion are squares as shown in FIG. 3, and the folding direction is 45 with respect to the symmetry line of the pattern.
Direction (° D-D line in FIG. 3) and the pattern size is a =
2.8 mm and b = 1.4 mm. The paper sheet was a 1-ply sheet with a 2-ply adhesive having a basis weight of 30 g / m 2 . The processing conditions were emboss clearance of 0 mm and processing speed of 75 mm / min. Example 2 The individual embossed patterns of the convex portion and the concave portion are circular, the folding direction is 45 ° with respect to the symmetry line of the pattern, and the pattern dimensions are a = 2.0 mm and b = 1.9 mm. . The paper sheet was the same as in Example 1, and the processing conditions were the same as in Example 1.
【００１１】比較例１
凸部分及び凹部分の個々のエンボス模様を正方形とし、
折る方向は模様が対称となる線に対して折ることとす
る。模様の寸法はａ＝１．０mm、ｂ＝２．５mmとし、紙
シート及び加工条件は実施例１と同じで加工を行った。比較例２
凸部分及び凹部分の個々のエンボス模様は円形とし、比
較例１と同様方向に折ることとする。模様寸法はａ＝
１．０mm、ｂ＝２．５mmとし、加工条件は実施例１と同
条件で加工を行った。 Comparative Example 1 Each embossed pattern of a convex portion and a concave portion is a square,
The folding direction is to fold with respect to the line where the pattern is symmetrical. The pattern dimensions were a = 1.0 mm and b = 2.5 mm, and the paper sheet and processing conditions were the same as in Example 1 for processing. Comparative Example 2 The individual embossed patterns for the convex portion and the concave portion are circular, and are folded in the same direction as in Comparative Example 1. The pattern size is a =
The processing conditions were the same as in Example 1, with 1.0 mm and b = 2.5 mm.
【００１２】[0012]
【表１】 [Table 1]
【００１３】[0013]
【発明の効果】本発明のエンボス模様を有する紙シート
の折り畳み方法は、従来の紙シートの欠点である折り重
ね後の紙シートの嵩高さに優れ、包装後の内容量の嵩高
さを一定に維持することができ、安定した商品を供給す
ることができる。The method for folding a paper sheet having an embossed pattern according to the present invention is excellent in the bulkiness of the paper sheet after folding, which is a drawback of the conventional paper sheets, and makes the bulk content volume after packaging uniform. It can be maintained and stable products can be supplied.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係るエンボス模様を有する紙シートの
折り畳み方法に用いられる紙シートの平面図である。FIG. 1 is a plan view of a paper sheet used in a method for folding a paper sheet having an embossed pattern according to the present invention.
【図２】図１の紙シートのＡ−Ａ線或いはＢ−Ｂ線に沿
った断面図である。FIG. 2 is a cross-sectional view of the paper sheet of FIG. 1 taken along the line AA or the line BB.
【図３】図１の紙シートを４５°回転させた平面図であ
る。FIG. 3 is a plan view of the paper sheet of FIG. 1 rotated by 45 °.
【図４】図１の紙シートのエンボス模様形成の工程図で
ある。FIG. 4 is a process diagram of forming an embossed pattern on the paper sheet of FIG.
【図５】図４の工程におけるエンボスロール部の要部説
明図である。5 is an explanatory view of a main part of an embossing roll portion in the process of FIG.
【符号の説明】 １ 紙シート ２ 凸部分 ３ 凹部分 １１、１２ 鋼鉄製エンボスロール[Explanation of symbols] 1 paper sheet 2 convex 3 recesses 11, 12 Steel embossing roll
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−116500（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B31F 1/08 B31F 1/07 B32B 33/00 ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-59-116500 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B31F 1/08 B31F 1/07 B32B 33 / 00
Claims (2)
それぞれの凹部分と凸部分に対応して対称に形成してあ
り、且つ一面の該凸部分と該一面の該凹部分とが規則的
に形成されたエンボス模様を有した紙シートを、該エン
ボス模様の凸部分と凹部分とが非対称となる線に沿って
折り畳むことを特徴とする紙シートの折り畳み方法。1. A convex portion and a concave portion on one surface are symmetrically formed corresponding to the concave portion and the convex portion on the opposite surface, respectively.
And the convex portion on one surface and the concave portion on the one surface are regular
How the paper sheets, folding the convex portion and concave portion of the embossed pattern of the paper sheet characterized by folding along the line to be asymmetrical having the formed embossed pattern on.
様が同じであることを特徴とする請求項第１項の紙シー
トの折り畳み方法。2. The method for folding a paper sheet according to claim 1, wherein the embossed pattern has the same convex portion and the same concave portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31846292A JP3410123B2 (en) | 1992-11-27 | 1992-11-27 | How to fold paper sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31846292A JP3410123B2 (en) | 1992-11-27 | 1992-11-27 | How to fold paper sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06155641A JPH06155641A (en) | 1994-06-03 |
| JP3410123B2 true JP3410123B2 (en) | 2003-05-26 |
Family
ID=18099393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31846292A Expired - Lifetime JP3410123B2 (en) | 1992-11-27 | 1992-11-27 | How to fold paper sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3410123B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4775023B2 (en) * | 2006-02-15 | 2011-09-21 | 大日本印刷株式会社 | Blank plate having continuous polyhedral embossed portions, paper product comprising the blank plate, and method for manufacturing blank plate |
| JP6622978B2 (en) * | 2015-03-31 | 2019-12-18 | 大王製紙株式会社 | Household tissue paper and method for producing household tissue paper |
| JP6059838B1 (en) * | 2015-06-30 | 2017-01-11 | 大王製紙株式会社 | Manufacturing method of household thin paper |
-
1992
- 1992-11-27 JP JP31846292A patent/JP3410123B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06155641A (en) | 1994-06-03 |
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