JPH0663200B2 - Anti-counterfeit paper and its manufacturing method - Google Patents
Anti-counterfeit paper and its manufacturing methodInfo
- Publication number
- JPH0663200B2 JPH0663200B2 JP28420791A JP28420791A JPH0663200B2 JP H0663200 B2 JPH0663200 B2 JP H0663200B2 JP 28420791 A JP28420791 A JP 28420791A JP 28420791 A JP28420791 A JP 28420791A JP H0663200 B2 JPH0663200 B2 JP H0663200B2
- Authority
- JP
- Japan
- Prior art keywords
- stock
- fibers
- paper
- cylinder
- nozzle
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 claims description 101
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000011550 stock solution Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Paper (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は銀行券、有価証券、入場
券等のような偽造防止を必要とする印刷用紙あるいは装
飾用紙及びそれらを製造する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing paper or a decorative paper, such as banknotes, securities, admission tickets, etc., which requires anti-counterfeiting, and a method for manufacturing them.
【０００２】[0002]
【従来の技術】近年のカラーコピーやカラースキャナー
等による複製技術の進歩に伴い、各種の有価証券類が簡
単に偽造される危険性が高まってきている。その対策と
して、印刷用紙を構成する基材繊維に着色繊維、蛍光繊
維、サーモクロミック繊維、フォトクロミック繊維、ガ
ラス繊維等（以下、本発明ではこれらを特殊繊維とい
う）を混在させる方法が従来から試みられている。これ
らを混抄するには紙料調合時に混合して抄造する方法が
ある。2. Description of the Related Art With recent advances in color copying and copying technology using color scanners and the like, there is an increasing risk that various securities will be easily forged. As a countermeasure against this, a method of mixing colored fibers, fluorescent fibers, thermochromic fibers, photochromic fibers, glass fibers, etc. (hereinafter referred to as special fibers in the present invention) in the base fibers constituting the printing paper has been attempted conventionally. ing. To mix these, there is a method in which they are mixed to prepare paper.
【０００３】[0003]
【発明が解決しようとする課題】従来の製造方法では、
特殊繊維の配置に規則性がないため、真偽判定は特殊繊
維の有無だけに頼ることから偽造されてしまう問題点を
抱えている。そこで、本発明は特殊繊維の配置に規則性
を持たせる。つまり、特殊繊維の抄き込み位置、抄き込
み幅、量を自由に制御することによって、偽造防止効果
を有する印刷用紙を得ることと、これを製造することを
目的とする。In the conventional manufacturing method,
Since the arrangement of the special fibers has no regularity, the authenticity determination has a problem that it is forged because it depends only on the presence or absence of the special fibers. Therefore, the present invention gives regularity to the arrangement of the special fibers. That is, it is an object to obtain a printing paper having an anti-counterfeiting effect by freely controlling the paper making position, paper making width and amount of the special fiber, and to manufacture the same.
【０００４】[0004]
【課題を解決するための手段】円網抄紙機の円網槽内の
紙料液面と円網との境界部の上側に、特殊繊維を含有す
る紙料を流し込むためのホースの付いたノズルを設置
し、このノズル及びホースの内径並びに紙料の流量を調
整することによって、特殊繊維の抄き込み幅を自由に制
御する。また、ノズル先端の位置を円網槽内の、紙料液
面より上部、紙料液面及び紙料液中の任意の場所と変化
させることによって、特殊繊維と印刷用紙を構成する基
材繊維との境界部での互いの繊維の混合度合いを自由に
制御する。同時に、このノズルの位置を固定することに
よって、湿紙の流れ方向にまっすぐな特殊繊維から成る
層を形成する。また、ノズルを円網の軸方向に移動させ
ることによって、特殊繊維で円網の軸方向に自由に変化
した模様を描く。[Means for Solving the Problems] A nozzle with a hose for pouring a stock containing special fibers above the boundary between the liquid level of the stock and the cylinder in the cylinder tank of the cylinder paper machine. Is installed and the inner diameter of the nozzle and the hose and the flow rate of the paper stock are adjusted to freely control the width of the special fiber to be made. In addition, by changing the position of the nozzle tip to a position above the stock liquid level in the cylinder tank, at the stock liquid level, and at any place in the stock liquid, the special fibers and the base fibers that make up the printing paper are changed. The degree of mixing of the fibers with each other at the boundary with and is freely controlled. At the same time, by fixing the position of this nozzle, a layer of special fibers that is straight in the flow direction of the wet paper web is formed. Also, by moving the nozzle in the axial direction of the cylinder, a special fiber draws a pattern that freely changes in the axial direction of the cylinder.
【０００５】[0005]
【作用】特殊繊維を指定した位置に、指定した幅で、指
定した量を、指定した模様に混抄できるため、従来の特
殊繊維の混抄方法よりも偽造防止効果の高い印刷用紙を
製造できる。また、真偽判定は特殊繊維の位置、幅、量
等の外観による方法の他、印刷用紙の全面に印刷が施さ
れた後でも断面に特殊繊維が現れているため、容易であ
る。Since the special fiber can be mixed in the specified position and the specified width in the specified pattern, it is possible to manufacture a printing paper having a higher forgery prevention effect than the conventional special fiber mixing method. In addition to the method of determining the authenticity by the appearance such as the position, width, and amount of the special fiber, the special fiber appears in the cross section even after the printing is performed on the entire surface of the printing paper, so that it is easy.
【０００６】[0006]
【実施例】実施例によって本発明を更に詳細に説明する
が、本発明はこの例によってなんら限定されるものでは
ない。EXAMPLES The present invention will be described in more detail by way of examples, which should not be construed as limiting the invention thereto.
【０００７】（例１）図１は本発明の実施例を示す概略
図である。図１において、（１）は円網槽であり、
（２）は円網、（３）は特殊繊維を含有する紙料を流し
込むノズル、（４）は特殊繊維を含有する紙料を送り込
むホース、（５）は特殊繊維を含有する紙料の流量を調
整するためのヘッドボックス、（６）は特殊繊維を含有
する紙料槽、（７）は特殊繊維を含有する紙料を送り上
げるポンプ、（Ｐ）は湿紙である。抄き込み紙料組成
は、湿紙を構成する基材繊維と特殊繊維を混合する場合
が多いが、この配合割合は使用する特殊繊維の種類によ
って異なる。特殊繊維を含有する紙料槽（６）の紙料濃
度は低濃度で使用する方が良好である。(Example 1) FIG. 1 is a schematic view showing an embodiment of the present invention. In FIG. 1, (1) is a cylinder tank,
(2) is a cylinder, (3) is a nozzle for pouring the stock containing special fibers, (4) is a hose for feeding the stock containing special fibers, and (5) is the flow rate of the stock containing special fibers. Is a head box for adjusting the above, (6) is a stock tank containing special fibers, (7) is a pump for feeding the stock containing special fibers, and (P) is wet paper. In the papermaking stock composition, the base fiber and the special fiber that compose the wet paper are often mixed, but the mixing ratio varies depending on the type of the special fiber used. The stock concentration of the stock tank (6) containing the special fiber is better when it is used at a low concentration.
【０００８】特殊繊維を含有する紙料槽（６）中の紙料
を特殊繊維を含有する紙料の流量を調整するためのヘッ
ドボックス（５）へポンプアップし、ここで紙料の流量
を調整する。余分な紙料はオーバーフロー管を通って特
殊繊維を含有する紙料槽（６）に戻される。特殊繊維を
含有する紙料の流量を調整するためのヘッドボックス
（５）を通過した紙料は、特殊繊維を含有する紙料を送
り込むホース（４）を通り、特殊繊維を含有する紙料を
流し込むノズル（３）から円網槽（１）へ流し込まれ
る。この時、特殊繊維を含有する紙料を流し込むノズル
（３）及び特殊繊維を含有する紙料を送り込むホース
（４）の内径並びに特殊繊維を含有する紙料の流量を調
整するためのヘッドボックス（５）の流量を調整するこ
とにより、特殊繊維の抄き込み幅を自由に制御すること
ができる。The stock in the stock tank containing the special fiber (6) is pumped up to the head box (5) for adjusting the flow rate of the stock containing the special fiber. adjust. Excess stock is returned to the stock tank (6) containing the specialty fiber through an overflow tube. The stock that has passed through the head box (5) for adjusting the flow rate of the stock containing special fibers passes through the hose (4) that feeds the stock containing special fibers, and then the stock containing special fibers is removed. It is poured from the pouring nozzle (3) into the cylinder tank (1). At this time, a head box (for adjusting the inner diameter of the nozzle (3) for pouring the stock containing the special fiber and the hose (4) for feeding the stock containing the special fiber and the flow rate of the stock containing the special fiber ( By adjusting the flow rate of 5), it is possible to freely control the papermaking width of the special fiber.
【０００９】図２は図１の湿紙をＡ−Ｂ線で切断した拡
大断面図で、湿紙を構成する基材繊維層（８）と特殊繊
維を含有する層（９）との境界部での互いの繊維の混合
度合が少なくなるように、特殊繊維を含有する紙料を流
し込むノズル（３）を調整して製造した。湿紙を構成す
る基材繊維層（８）と特殊繊維を含有する層（９）との
境界部の繊維は互いに絡み合っているため完全には分離
していない（図示せず）が、目視ではっきり境界部が認
識できた。湿紙を構成する基材繊維層（８）は天然繊
維、合成繊維、半合成繊維、これらの複合体等であり、
特殊繊維を含有する層（９）の特殊繊維は、前述のよう
に着色繊維、蛍光繊維、サーモクロミック繊維、フォト
クロミック繊維、ガラス繊維等である。FIG. 2 is an enlarged cross-sectional view of the wet paper web of FIG. 1 taken along the line A-B, showing the boundary between the base fiber layer (8) and the special fiber-containing layer (9) constituting the wet paper web. The nozzle (3) for pouring the stock containing the special fiber was adjusted so that the degree of mixing of the fibers with each other was reduced. The fibers at the boundary between the base fiber layer (8) constituting the wet paper web and the layer (9) containing the special fiber are not completely separated because they are entangled with each other (not shown), but visually. The boundary was clearly recognizable. The base fiber layer (8) constituting the wet paper is a natural fiber, a synthetic fiber, a semi-synthetic fiber, a composite of these, or the like,
The special fibers of the layer (9) containing the special fibers are colored fibers, fluorescent fibers, thermochromic fibers, photochromic fibers, glass fibers, etc. as described above.
【００１０】（例２）図３は特殊繊維を含有する紙料を
流し込むノズル（３）の位置と円網槽（１）の関係を説
明する図である。前記同様に（２）は円網、（４）は特
殊繊維を含有する紙料を送り込むホース、（１０）は紙
料液面である。特殊繊維を含有する紙料を流し込むノズ
ル（３）先端の位置を図のように、紙料液面（１０）よ
り上部（イ）、紙料液面（ロ）及び紙料液中（ハ）と変
化させることによって、湿紙を構成する基材繊維層
（８）と特殊繊維を含有する層（９）との境界部での互
いの繊維の混合度合を自由に制御することができる。紙
料液面（１０）より上部（イ）では円網（２）に直接、
紙料液面（ロ）では円網（２）と紙料液面（１０）の境
界部、紙料液中（ハ）では円網（２）と紙料液面（１
０）の境界部の紙料液中にそれぞれ特殊繊維を含有する
紙料を流し込むようにしたものである。特殊繊維を含有
する紙料を流し込むノズル（３）が紙料液面（１０）よ
り上部（イ）の場合は特殊繊維を含有する層（９）は湿
紙を構成する基材繊維層（８）との境界部でわずかに混
合するだけで、境界がはっきりと認識できる。同じく、
紙料液面（ロ）の場合の境界は前記紙料液面（１０）よ
り上部（イ）の場合ほどはっきりとしない。同じく、紙
料液中（ハ）の場合は特殊繊維が湿紙を構成する基材繊
維層（８）に混合する度合が多くなるので境界部がはっ
きりしなくなる。(Example 2) FIG. 3 is a view for explaining the relationship between the position of the nozzle (3) for pouring the stock containing the special fiber and the cylinder tank (1). Similarly to the above, (2) is a cylinder, (4) is a hose for feeding the stock containing the special fiber, and (10) is the liquid level of the stock. As shown in the figure, the position of the tip of the nozzle (3) through which the stock containing the special fiber is poured is above the stock level (10) (a), the stock level (b) and the stock level (c). It is possible to freely control the degree of mixing of the fibers at the boundary between the base fiber layer (8) forming the wet paper web and the layer (9) containing the special fibers by changing the above. Directly on the cylinder (2) above the stock level (10) (a)
At the stock liquid level (b), the boundary between the circle (2) and the stock liquid level (10), and in the stock liquid (c), the circle (2) and the stock liquid level (1)
The stock containing the special fiber is poured into the stock solution at the boundary of 0). When the nozzle (3) for injecting the stock containing the special fiber is above the liquid level (10) of the stock (10), the layer containing the special fiber (9) is the base fiber layer (8) constituting the wet paper web. ) And the boundary can be clearly recognized by only slightly mixing at the boundary. Similarly,
The boundary in the case of the stock liquid level (b) is not as clear as in the case of the upper part (a) above the stock liquid level (10). Similarly, in the case of the stock solution (c), the special fibers are mixed with the base fiber layer (8) constituting the wet paper to a large extent, so that the boundary becomes unclear.
【００１１】（例３）前述の図１の（１１）はノズル移
動装置である。特殊繊維を含有する紙料を流し込むノズ
ル（３）を固定すれば、特殊繊維を湿紙の流れ方向にま
っすぐに抄き込むことができ、ノズル移動装置（１１）
で左右に移動させれば、特殊繊維で円網の軸方向に自由
に変化した模様を描くことができる。(Example 3) The above-mentioned (11) in FIG. 1 is a nozzle moving device. If the nozzle (3) for pouring the stock containing the special fiber is fixed, the special fiber can be straightly drawn in the flow direction of the wet paper, and the nozzle moving device (11)
By moving to the left or right with, you can draw a pattern that changes freely in the axial direction of the cylinder with special fibers.
【００１２】（例４）図４は円網二槽抄紙機の概略図で
ある。（１２）は円網第一槽、（１３）は円網第二槽で
ある。円網第一槽（１２）で特殊繊維を抄き込み、これ
に円網第二槽（１３）からの湿紙を重ねることにより、
特殊繊維層を紙層中に形成することができる。(Example 4) FIG. 4 is a schematic view of a cylinder two-tank paper machine. (12) is a cylinder net first tank, and (13) is a cylinder net second tank. By drawing special fiber in the cylinder net first tank (12) and stacking the wet paper from the cylinder net second tank (13) on it,
Special fiber layers can be formed in the paper layer.
【００１３】（例５）図５は円網抄紙機と長網抄紙機の
コンビネーション抄造の概略図である。（１４）は長
網、（１５）はプレス装置である。円網（２）で特殊繊
維を抄き込み、これに長網（１４）からの湿紙をプレス
装置（１５）で抄き合わせることによって、特殊繊維層
を紙層中に形成することができる。(Example 5) FIG. 5 is a schematic view of combination papermaking of a cylinder paper machine and a Fourdrinier paper machine. (14) is a fourdrinier, and (15) is a press machine. A special fiber layer can be formed in the paper layer by incorporating the special fiber in the circular net (2) and combining the wet paper from the Fourdrinier (14) with the press machine (15). .
【００１４】図６は図４の湿紙をＣ−Ｄ線及び図５の湿
紙をＥ−Ｆ線で切断した拡大断面図で、特殊繊維を含有
する紙料を流し込むノズル（３）先端の位置は前記した
紙料液面（１０）の上部（イ）に設定した。（８）は図
４の円網第一槽（１２）及び図５の円網（２）で製造し
た湿紙を構成する基材繊維層、（８’）は図４の円網第
二槽（１３）及び図５の長網（１４）で製造した湿紙を
構成する基材繊維層、（９）は特殊繊維を含有する層で
ある。このように、円網二層のコンビネーション抄造の
他、円網と長網のコンビネーションによっても同様な印
刷用紙を製造することができる。FIG. 6 is an enlarged cross-sectional view of the wet paper web of FIG. 4 taken along the line CD and the wet paper web of FIG. 5 along the line EF, showing the tip of the nozzle (3) through which the stock containing the special fiber is poured. The position was set to the upper part (a) of the stock liquid surface (10). (8) is a base fiber layer constituting the wet paper web produced by the cylinder net tank (12) of FIG. 4 and the cylinder net (2) of FIG. 5, and (8 ′) is the cylinder net second tank of FIG. (13) and the base fiber layer constituting the wet paper web produced by the Fourdrinier (14) of FIG. 5, and (9) is a layer containing special fibers. In this way, the same printing paper can be manufactured by a combination of a cylinder and a fourdrinier as well as a combination of two layers of a cylinder and a combination.
【００１５】[0015]
【発明の効果】湿紙中に特殊繊維を指定した位置に、指
定した幅で、指定した量を、指定した模様に混抄できる
ため、従来の特殊繊維の混抄方法より偽造防止効果の高
い印刷用紙を製造できる。また、真偽判定は特殊繊維の
位置、幅、量等の外観による方法の他、印刷用紙の全面
に印刷が施された後でも断面に特殊繊維が現れているた
め、容易である。以上の構成から成る印刷用紙は、偽造
防止効果が極めて高いことから、付加価値の高い製品、
例えば、銀行券、有価証券、入場券等への適用ができ
る。EFFECT OF THE INVENTION A printing paper having a higher anti-counterfeiting effect than the conventional method for mixing special fibers because the special fiber can be mixed in the specified pattern at the specified position in the wet paper in the specified width. Can be manufactured. In addition to the method of determining the authenticity by the appearance such as the position, width, and amount of the special fiber, the special fiber appears in the cross section even after the printing is performed on the entire surface of the printing paper, so that it is easy. The printing paper configured as described above has a very high anti-counterfeiting effect, and therefore has high added value.
For example, it can be applied to banknotes, securities, entrance tickets, and the like.
【００１６】[0016]
【図１】本発明による特殊繊維の抄き込み技法の概略
図。FIG. 1 is a schematic view of a papermaking technique for special fibers according to the present invention.
【図２】図１のＡ−Ｂ線の拡大断面図。FIG. 2 is an enlarged sectional view taken along the line AB of FIG.
【図３】ノズル位置と円網槽の関係を説明する図。FIG. 3 is a diagram illustrating a relationship between a nozzle position and a cylinder tank.
【図４】円網二槽抄紙機の概略図。FIG. 4 is a schematic view of a cylinder two-tank paper machine.
【図５】円網抄紙機と長網抄紙機のコンビネーション抄
造の概略図。FIG. 5 is a schematic view of a combination paper making of a cylinder paper machine and a fourdrinier paper machine.
【図６】図４の抄紙機製造紙をＣ−Ｄ線及び図５の湿紙
をＥ−Ｆ線で切断した拡大断面図。FIG. 6 is an enlarged cross-sectional view of the paper manufactured by the paper machine of FIG. 4 taken along line CD and the wet paper of FIG. 5 taken along line EF.
１ 円網槽 ２ 円網 ３ 特殊繊維を含有する紙料を流し込むノズル ４ 特殊繊維を含有する紙料を送り込むホース ５ 特殊繊維を含有する紙料の流量を調整するための
ヘッドボックス ６ 特殊繊維を含有する紙料槽 ７ 特殊繊維を含有する紙料を送り上げるポンプ ８ 湿紙を構成する基材繊維層 ８’ 湿紙を構成する基材繊維層 ９ 特殊繊維を含有する層 １０ 紙料液面 １１ ノズル移動装置 １２ 円網第一槽 １３ 円網第二槽 １４ 長網 １５ プレス装置 Ｐ 湿紙1 Cylinder tank 2 Cylinder 3 Nozzle for pouring stock containing special fiber 4 Hose for feeding stock containing special fiber 5 Headbox for adjusting flow rate of stock containing special fiber 6 Special fiber Containing stock tank 7 Pump for feeding stock containing special fiber 8 Base fiber layer forming wet paper 8'Base fiber layer forming wet paper 9 Layer containing special fiber 10 Liquid level of stock 11 Nozzle moving device 12 Cylinder first tank 13 Cylinder second tank 14 Long net 15 Press device P Wet paper
Claims (5)
との境界部の上側に、着色繊維、蛍光繊維、サーモクロ
ミック繊維、フォトクロミック繊維、ガラス繊維等から
成る紙料を流し込むホースの付いたノズルを設置し、こ
れから前記紙料を流し込むことによって、前記繊維を任
意の部分に一定幅で抄き込んだ偽造防止用紙。1. A stock consisting of colored fibers, fluorescent fibers, thermochromic fibers, photochromic fibers, glass fibers, etc. above the boundary between the liquid level and the cylinder in the cylinder tank of the cylinder paper machine. An anti-counterfeit paper in which a fiber is poured into an arbitrary portion with a constant width by installing a nozzle having a hose for pouring the paper, and then pouring the paper material from the nozzle.
との境界部の上側に、着色繊維、蛍光繊維、サーモクロ
ミック繊維、フォトクロミック繊維、ガラス繊維等から
成る紙料を流し込むホースの付いたノズルを設置し、こ
れから前記紙料を流し込むことによって、前記繊維を任
意の部分に一定幅で抄き込んだ偽造防止用紙の製造方
法。2. A paper stock comprising colored fibers, fluorescent fibers, thermochromic fibers, photochromic fibers, glass fibers, etc. above the boundary between the liquid level and the net in the cylinder tank of the cylinder paper machine. A method for producing an anti-counterfeit paper, in which a nozzle with a hose for pouring is installed, and the paper material is poured into the nozzle so that the fiber is made into a desired width in a certain width.
量を調整できるようにした請求項２記載の偽造防止用紙
の製造方法。3. The method for producing anti-counterfeit paper according to claim 2, wherein the inner diameters of the nozzle and the hose and the flow rate of the paper stock can be adjusted.
面より上部、紙料液面及び紙料液中の任意の場所に設置
できるようにした請求項２記載の偽造防止用紙の製造方
法。4. The anti-counterfeit paper according to claim 2, wherein the position of the tip of the nozzle can be set in the cylinder tank above the liquid level of the stock, at the liquid level of the stock, and at any place in the liquid of the stock. Manufacturing method.
にした請求項２記載の偽造防止用紙の製造方法。5. The method of manufacturing anti-counterfeit paper according to claim 2, wherein the nozzle is movable in the axial direction of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28420791A JPH0663200B2 (en) | 1991-10-04 | 1991-10-04 | Anti-counterfeit paper and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28420791A JPH0663200B2 (en) | 1991-10-04 | 1991-10-04 | Anti-counterfeit paper and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0598599A JPH0598599A (en) | 1993-04-20 |
| JPH0663200B2 true JPH0663200B2 (en) | 1994-08-17 |
Family
ID=17675553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28420791A Expired - Fee Related JPH0663200B2 (en) | 1991-10-04 | 1991-10-04 | Anti-counterfeit paper and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0663200B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001181998A (en) * | 1999-12-27 | 2001-07-03 | Printing Bureau Ministry Of Finance | Anti-counterfeit paper, method for manufacturing the same, method for determining authenticity thereof, and apparatus for determining authenticity thereof |
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|---|---|---|---|---|
| JP3262067B2 (en) * | 1998-05-01 | 2002-03-04 | 特種製紙株式会社 | Method of dispersing strips in wet paper layer |
| US6036885A (en) * | 1998-09-15 | 2000-03-14 | Eastman Chemical Company | Method for making cellulose esters incorporating near-infrared fluorophores |
| GB2392868B (en) | 2002-09-16 | 2006-02-01 | D W Spinks | Rainbow fibres |
| ITVR20040104A1 (en) * | 2004-06-16 | 2004-09-16 | Cartiere Fedrigoni & C Spa | EQUIPMENT FOR THE PRODUCTION OF SECURITY CARD AND RELATED PROCEDURE |
| KR100888288B1 (en) | 2004-09-15 | 2009-03-11 | 크레인 앤드 캄파니 인코퍼레이티드 | Security device and novel anti-counterfeit product employing same |
| JP4983019B2 (en) * | 2005-12-26 | 2012-07-25 | 富士ゼロックス株式会社 | Paper manufacturing method, paper manufacturing apparatus |
| JP2007303034A (en) * | 2006-05-12 | 2007-11-22 | Oji Tokushushi Kk | Pattern paper containing long fiber or tape |
| WO2009119879A1 (en) | 2008-03-28 | 2009-10-01 | 凸版印刷株式会社 | Paper, process for producing the same, and printed article |
| JP2011063891A (en) * | 2009-09-15 | 2011-03-31 | Daizen:Kk | Small continuous paper machine |
| JP5874976B2 (en) * | 2012-05-01 | 2016-03-02 | 独立行政法人 国立印刷局 | Paper formed with different fibers for each region and method for producing the same |
| JP6323807B2 (en) * | 2014-09-08 | 2018-05-16 | 独立行政法人 国立印刷局 | Anti-counterfeit paper and method for producing the same |
| JP6323808B2 (en) * | 2014-09-08 | 2018-05-16 | 独立行政法人 国立印刷局 | Anti-tamper paper |
-
1991
- 1991-10-04 JP JP28420791A patent/JPH0663200B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001181998A (en) * | 1999-12-27 | 2001-07-03 | Printing Bureau Ministry Of Finance | Anti-counterfeit paper, method for manufacturing the same, method for determining authenticity thereof, and apparatus for determining authenticity thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0598599A (en) | 1993-04-20 |
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