WO1991009172A1 - Method of making watermarked paper - Google Patents
Method of making watermarked paper Download PDFInfo
- Publication number
- WO1991009172A1 WO1991009172A1 PCT/JP1990/001602 JP9001602W WO9109172A1 WO 1991009172 A1 WO1991009172 A1 WO 1991009172A1 JP 9001602 W JP9001602 W JP 9001602W WO 9109172 A1 WO9109172 A1 WO 9109172A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- net
- lace
- paper
- mesh
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
- D21F1/46—Dandy rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/60—Cylinder moulds
Definitions
- the present invention relates to a method for easily and economically producing delicate and high-gradation transparent paper using lace.
- a method of manufacturing a transparent paper (a) attaching a pattern such as a pattern or a character to the upper net of a circular cylinder cylinder or a dandy roll, or (b) applying a net to the pattern.
- a pattern such as a pattern or a character
- a net to the pattern.
- the mesh of the pattern-shaped portion is closed, and the passage of the stock is suppressed.
- a paper layer is not formed at that portion or becomes thin even if it is formed, a see-through pattern appears.
- the size of the mesh closed by the pattern and the pattern shape becomes significantly larger than the fiber length, holes will be formed in the paper layer, which poses a practical problem. Therefore, in order to prevent holes, it is necessary to restrict the shape, size, distribution, etc. of the pattern shape, or to perform multi-layer cutting.
- the work of creating this pattern and attaching it to the net, and painting the mesh of the net in accordance with the pattern requires extremely advanced techniques and skills, and the production time required for it is enormous. Become.
- Japanese Patent Publication No. 47-12202 Japanese Patent Publication No. 49-21248, Japanese Patent Publication No. 54-24483, and Japanese Patent Publication No. 54-28486 are as follows. --It is an attempt to remedy the difficulties, and it is intended to easily produce a patterned or patterned net using photosensitive resin.
- the pattern is embossed on the net, so the mesh is not closed. Therefore, the see-through pattern appears due to the difference in drainage due to the height, depth, angle of the slope, etc., of the mesh, and the see-through pattern is different from the methods (a) and (b). It has excellent so-called gradation that expresses subtle differences in shading, is less likely to have holes where no fibers are present, and has fewer restrictions on the design of see-through patterns.
- the production of a net for clarification in the method (c) requires more advanced techniques and skills than the methods (a) and (b).
- the irregular pattern of the mesh itself is easily deformed during papermaking and easily damaged.
- the above-mentioned method of manufacturing a transparent paper has a transparent pattern by making the fiber distribution uneven in the papermaking process.
- any pattern is printed with a transparent resin (Japanese Patent Publication No. 50-3802), or a resin that makes that part transparent by hot pressing is applied.
- Japanese Patent Laid-Open No. 61-275500 There is also a proposal to obtain a pattern with a transparent style.
- Japanese Patent Publication No. 47-7725 and Japanese Patent Publication No. 49-12846 propose a method of manufacturing a transparent paper with a deep uneven pattern using a patterned long net. Since it rotates while contacting a large number of rolls while receiving, there is a problem with the wear of the expensive patterned fourdrinier and the running stability of the fourdrinier.
- the various problems of the conventional method described above can be summarized as follows.
- an object of the present invention is to solve the above-mentioned problems of the conventional method and to produce transparent paper that is excellent in gradation and can freely penetrate even complex designs, and that is easy and inexpensive.
- a lace is fixedly joined to a papermaking net to form a pattern net, and this pattern net is formed into a cylinder mold or a dandy roll for a circular net paper machine.
- the cylinder model attached with a pattern net attached as an upper net ---It is characterized by making paper using bunches or dandy rolls.
- the lace used in the present invention is a generic term for products in which yarns are formed with a certain texture and the pores are dense and dense to express a perforated pattern. Includes the fabric cloth that has been applied (see Kodansha's “Encyclopedia of Modern World Encyclopedia”, Vol. 3, p. 944 (issued in 1972)).
- the material of the yarn for producing the lace is not particularly limited, and metal fibers such as bronze and stainless steel, synthetic fibers such as nylon and polyester, and natural fibers such as cotton, hemp and wool. Any fiber can be used.
- means such as soldering, sewing, and bonding with an adhesive can be arbitrarily selected depending on the material of the race.
- the appearance of the pattern of the transparent paper in the present invention is based on the combination of the thicknesses of the yarns of the laces constituting the upper net, the density of the gap between the yarns, and the variation in the thickness of the pattern portion formed by the size of the overlap of the yarns. Based on the diversity of the lace organization, etc., it is possible to obtain transparent paper with complicated and delicate patterns and rich gradations, which is difficult to obtain with conventional technology.
- FIG. 1 is a perspective view of a dandy hole to which a pattern net used in the present invention is attached.
- FIG. 2 is a perspective view of a cylinder mold for a round paper machine to which a pattern net used in the present invention is attached.
- FIG. 1 shows a dandy roll 1 used when the method of the present invention is performed by a fourdrinier paper machine, and a pattern net formed by fixedly joining a lace 2 to a papermaking net 3 is shown. It is mounted on frame 4 of a dandy roll.
- FIG. 2 shows a cylinder mold 10 used when the method of the present invention is carried out by a round paper machine, and is formed by fixedly joining a race 20 to a papermaking net 30 for papermaking.
- the dandy roll 1 shown in Fig. 1 is installed and the paper is milled by rotating, and dried according to the usual method.
- the cylinder mold 10 is installed at a predetermined position in the bag of the mesh paper machine, and the paper is made in accordance with the ordinary method. Good.
- the category of web paper machines also includes special web paper machines, such as rotoforma, phenolic, and stevensforma.
- a lace can be used as a lace for forming a pattern net.
- a part of the lace mesh is filled with resin by screen printing or printing, and a lace filled with resin is also used. It can also be used.
- Example 1 A 90-mesh bronze-made net is coated with an epoxy-based adhesive (trade name “Araldite 106”, manufactured by BA-GEIGY). ) was used to fix and join together to make a pattern net, and this pattern net was used as the upper net and attached to a circular cylinder cylinder, using a stock of the following formulation and a basis weight of 120 g / m2. Paper was made of transparent paper of 2. Mixing of paper stock (1 beater per minute)
- Part of the lace pattern woven with polyester filament is made of epoxy resin (trade name "Araldite 106") In addition, it was painted by screen printing, and part of it was embossed with resin.
- the lace thus obtained was integrally fixed to a 60-mesh bronze net with an adhesive (the above epoxy resin) to form a pattern net, and this pattern net was used as the upper net.
- Dundee was attached to one bite.
- the dandy roll was placed on a paper machine in a fourdrinier paper machine and pressed while rotating on a wet paper (dry basis weight ll Og / m 2 ) having the same stock formulation as in Example 1. Thereafter, it was dried according to a conventional method.
- the time required to create the pattern net for clarity can be greatly reduced by using machine-knitted lace, including the time required to make the lace.
- the production time of the pattern net was reduced by about 110 times compared to the conventional method (a) for attaching a pattern such as a pattern or a character.
- the mesh of the mesh which is mainly used in the conventional method is closed. --Compared to the method of expressing a see-through pattern, the expression of gradation is excellent. Furthermore, there is no risk of holes in the paper layer due to the see-through pattern, so there are no restrictions on the design of the see-through pattern.
- the pattern net used in the present invention in which the race and the net are fixedly joined, is also excellent in durability during papermaking.
- the design is converted into digital information using an electronic scanner, etc., and an automatic weaving machine is used. Because it is possible to manufacture complex designs, it can be manufactured in a short time.
- the present invention also enables the production of various kinds of transparent papers of various designs in small lots of various types.
Landscapes
- Paper (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91900050A EP0458973B1 (en) | 1989-12-14 | 1990-12-10 | Method of making watermarked paper |
DE69019737T DE69019737T2 (de) | 1989-12-14 | 1990-12-10 | Verfahren zur herstellung von papier mit wasserzeichen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32476589A JPH0686719B2 (ja) | 1989-12-14 | 1989-12-14 | 透き入れ紙の製造方法 |
JP1/324765 | 1989-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991009172A1 true WO1991009172A1 (en) | 1991-06-27 |
Family
ID=18169427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/001602 WO1991009172A1 (en) | 1989-12-14 | 1990-12-10 | Method of making watermarked paper |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0458973B1 (ja) |
JP (1) | JPH0686719B2 (ja) |
DE (1) | DE69019737T2 (ja) |
WO (1) | WO1991009172A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101372816B (zh) * | 2008-09-20 | 2011-04-20 | 李�昊 | 真空圆网笼的壳体 |
CN103128471A (zh) * | 2013-03-19 | 2013-06-05 | 四川大学 | 白水印自动焊接系统 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2769927B1 (fr) * | 1997-10-20 | 1999-12-24 | Thibierge Et Comar | Papier comportant un motif en relief, son procede de fabrication et toile pour sa fabrication |
DE102008024401B3 (de) * | 2008-05-20 | 2010-01-07 | Hans Grossmann | Entwässerungssieb für eine Saugwalze einer Papiermaschine |
CN102373642B (zh) * | 2011-11-10 | 2014-07-23 | 保定钞票纸业有限公司 | 一种二维码水印防伪纸的制造方法 |
MX2016000391A (es) | 2013-07-09 | 2016-10-26 | Georgia-Pacific Gypsum Llc | Papel de centro multicapa selectivamente aprestado, metodos y aparatos. |
CH709680A1 (de) | 2014-05-21 | 2015-11-30 | Landqart Ag | Entwässerungssieb für die Herstellung von Papier mit wenigstens einem Wasserzeichen und damit hergestelltes Papier mit einem Wasserzeichen. |
CN105672042B (zh) * | 2016-01-21 | 2018-08-07 | 成都印钞有限公司 | 一种具有潜影水印的防伪纸张以及该纸张的制作工艺 |
CN111231493A (zh) * | 2019-12-13 | 2020-06-05 | 成都印钞有限公司 | 纸张成型模具、模具制作方法及由成型模具制造的纸张 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501605U (ja) * | 1973-05-14 | 1975-01-09 | ||
JPS60110995A (ja) * | 1983-11-17 | 1985-06-17 | ザ・ミード・コーポレーシヨン | 擬似オツクスフオードすき入れを備えた紙を製造するためのダンデイロール及び関連の抄紙方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59473C (de) * | E. HOESCH, Königlicher Kommerzienrath, in Düren und M. KRAUSE in Berlin S.W., Beuthstrafse 7 | Erzeugung farbiger Wasserzeichen auf der Papiermaschine | ||
DE116431C (ja) * | ||||
US1514238A (en) * | 1922-04-07 | 1924-11-04 | F C Huyck & Sons | Means for watermarking paper |
GB373905A (en) * | 1930-10-20 | 1932-06-02 | Nat Bank Of Hungary | Process for the production of genuine watermark papers without using relief moulds |
CH206738A (de) * | 1937-11-12 | 1939-08-31 | Ernst Walter Ludwig | Reliefschablone zur Erzeugung echter Relief-Wasserzeichen. |
CH244613A (de) * | 1945-05-25 | 1946-09-30 | Reinhardt Erwin | Einrichtung an Papiermaschinen zur Herstellung von in der Durchsicht durch das Papier gegenüber demselben dunkler erscheinenden Wasserzeichen. |
-
1989
- 1989-12-14 JP JP32476589A patent/JPH0686719B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-10 DE DE69019737T patent/DE69019737T2/de not_active Expired - Lifetime
- 1990-12-10 EP EP91900050A patent/EP0458973B1/en not_active Expired - Lifetime
- 1990-12-10 WO PCT/JP1990/001602 patent/WO1991009172A1/ja active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501605U (ja) * | 1973-05-14 | 1975-01-09 | ||
JPS60110995A (ja) * | 1983-11-17 | 1985-06-17 | ザ・ミード・コーポレーシヨン | 擬似オツクスフオードすき入れを備えた紙を製造するためのダンデイロール及び関連の抄紙方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0458973A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101372816B (zh) * | 2008-09-20 | 2011-04-20 | 李�昊 | 真空圆网笼的壳体 |
CN103128471A (zh) * | 2013-03-19 | 2013-06-05 | 四川大学 | 白水印自动焊接系统 |
Also Published As
Publication number | Publication date |
---|---|
DE69019737T2 (de) | 1996-02-08 |
EP0458973A1 (en) | 1991-12-04 |
JPH0686719B2 (ja) | 1994-11-02 |
DE69019737D1 (de) | 1995-06-29 |
EP0458973B1 (en) | 1995-05-24 |
EP0458973A4 (en) | 1992-06-03 |
JPH03185200A (ja) | 1991-08-13 |
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