DE1919168A1 - Electrolytic writing paper packages and processes for their manufacture - Google Patents

Description

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PATENT ADVOCATE

April 15, 1969 Anvo files; 21.1

PATENT NOTICE Applicant; INTERNATIONAL SCANATRON SYSTEMS CORP.

1623 Straight Path, Wyandanch, N.Y. 11798 (U.S.A.)

Title; Electrolytic writing paper packages and processes for their manufacture

The invention relates to packages for electrolytic writing paper and processes for their production.

Facsimile writing is generally carried out on a roll of paper that is impregnated with an electrolytic solution and a compound which, when connected to an electrical current, produces a test on the paper. The impregnated paper is closed for transport and storage plastic or other containers packed * Just before use, it is repackaged in a halbgetchlossenen Anfeuchtbehältcr who whored to the writer, * for example, is described in CTAM US Patent% 111,776 vie "· di · leg Faksiy" * wtndeten eltktx-oi ^ iltehtn

41/1111

BATH ORIGINAL

Prior art and are, for example, in US patents 2,339,267 and 2,358,939.

The use of electrolytic writing papers has shortcomings and restricts their use. Paper that is under extremely damp Conditions after the impregnation is stored, there is only one limited storage period. After a certain period of storage at room temperature, generally after a few months, they react chemicals used for impregnation due to contamination in paper and discoloration. In a very aggressive environment the service life of impregnated paper is greatly reduced.

The object of the invention is to eliminate the known shortcomings and to increase the shelf life even under extreme conditions. It was found that the substances with which the Paper reacts, can be kept away and that the storage life of the paper and the electrolyte is extended if one dividing the electrolyte into two parts or, if necessary, separating the electrolyte completely from the paper.

The invention resides in a package for electrolytic writing paper in that two separate package parts are provided, and one for each roll of electrolytic writing paper and another package part for an electrolyte.

It has advantageously been found in practice al * to impregnate the paper with a part of the electrolyte, such as the sales and pH Eirtstell chemicals and the other "part. ₁ z "B _e in © ine" to store the Prägeraasse and Stabilisierungschemikaliers separate part. Before using the P © pi®r§, the VerecisluS E & iaehfffif is broken into the feei » dm pack. and the Isspxagnl ©? «» ® si®® Ψ @ ρί® £ ® '.

BAD ORlGiNAL

• 0984.3-7 UIf-. ; "3 *

closed. The electrolyte in the second part of the packet is measured, just to be sufficient to adjust the impregnated paper to the optimum moisture content to achieve the best embossing results bring to.

According to the invention, the moisture content of the paper for storage purposes can be reduced to a very low value in order to increase the stability to further promote. However, it should not be reduced so much that the paper becomes brittle or damage occurs can.

Another way of increasing the useful life of the electrolytic According to the invention, increasing writing paper consists in completely impregnating the paper and then essentially impregnating all of it Remove moisture to make the paper suitable for storage. The optimal water content is then restored before the embossing produced by adding the appropriate amount of water again in the simplest way.

The invention thus consists of a combination of two separate ones Package parts, one containing a roll of electrolytic writing paper and the other containing an electrolyte.

The invention further relates to a method for producing a Packaging f (Jr electrolytic writing paper, where ■ first the Paper is impregnated with an electrolyte for electrolytic writing and then the water content from the impregnated paper Will get removed. The essentially dry paper is then sealed in an airtight package.

_ 4 909843/1319

These measures eliminate the known defects that adhere to the electrolytic papers and achieve a practically unlimited shelf life.

The object of the invention is shown in the drawing and is described in more detail below. Show it:

1 is a perspective view of a two-part package for electrolytic writing paper and electrolyte;

Fig. 2 is a perspective view of a paper roll core form,

Figure 3 is a perspective view of another package for Writing paper,

Fig. 4 is a view of a closure as a termination between two package parts and

5 is a plan view of a coreless paper roll;

Fig. 1 shows a roll 1 of electrolytic writing paper, ) which is wound on a core 2 (although coreless paper rolls can also be used, as FIG. 5 shows) and that in a first part 3 of a two-part closed package is included. The second part 6 of the package contains an electrolytic solution 7, an end cap 9 and a clamp 4, 5 that separates the two parts of the package and the electrolyte 7 prevents it from reaching the paper 1 as long as the clamp 4, is not removed »

909843/1319

According to the invention it has proved to be effective to impregnate the paper of the roll 1 in the package part 3 with salts such as sodium or potassium nitrate, and an edge strip contraceptives, such as ₀ sodium phosphate, and oxalic acid to a pH adjustment in the order of 3 - 5, to achieve a strong embossing and to ensure permanent stability, as well as to add enough water to produce a moisture content of 1 to 2 % .

The electrolyte 7 in the second part 6 of the package contains the embossing means, such as pyrocatechol, a stabilizer such as thiourea, and an optional wetting agent to prevent diffusion to promote the electrolyte when it comes into contact with paper, and sufficient water to produce an optimal moisture content in the impregnated paper when the embossing agent plus Stabilizers (such as thiourea) have been released into the paper and when the electrolyte has been absorbed by the paper is. The exact amount will depend on the properties of the paper and the final moisture content desired.

By thus separating certain components and in particular by keeping the embossing means separate from the damp paper, mqp; according to the invention, the electrolytic paper for long periods of time store without discoloration and in particular one can tolerate ambient conditions, such as elevated temperatures, without the stored Paper changes color or that chemical reactions of the electrolyte components and paper contamination reactions occur.

Before use, the clamp 4, 5 can be removed and one can let the electrolyte 7 penetrate into the paper roll 1. As soon

909843/1319

this impregnation is completed, the package can be opened and the paper ready to use in the facsimile printer or be placed in a similar embossing device «

Another method of extending the shelf life of the electrolytic writing paper is to use the paper to impregnate all embossing agents and then to remove the water content, e.g. by vacuum drying. Thereupon the paper closed and can be stored for long periods of time. The second part of the package then only contains water that was used before writing is to be added.

Fig. 2 shows the core 2, which is provided with a large number of holes in order to allow the electrolyte 7 to diffuse into the paper facilitate.

Figure 3 is a modified form of a two-part package. A large outer package 10, which is closed at one end at 11, contains the paper roll 1 which has been treated in the manner described above. A second package 13 contains an electrolyte 14 as described above and is closed at one end 15. When the time has come to complete the impregnation of the paper, the second packet 13 is broken open, allowing the electrolyte 14 to complete the impregnation; then the paper is ready for use and the Gußexe package 10 can be opened.

FIG. 4 shows a modified partial view of the package according to FIG. 1, wherein a neck 16, 26 is closed from one part of the package to the other by a first clamp it consists of parts 17, 18, 19 and 20. The attachment of a second clamp 22, 23, 24 and 25

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1919 158

forms a small pocket 21 between the first and second clamps. It is also possible according to the invention by connection of the two clamps, as shown by the dashed lines 27, to form a double clamp, which also has a pocket 21 between the two clamp parts 18, 19 ^ 20 and 23, 24, 25 leaves free.

The pouch may contain an indicator, such as litmus, the

changes color when it comes in contact with the electrolyte comes. So if electrolyte passes through one of the clamps, then it will

the indicator will change color, indicating that "

there is a leak. This arrangement is a means to control the condition within the two parts of the package

FIG _o 5 shows a coreless paper roll 1, wherein the inner opening or passage 28 of the roller is substantially self-supporting "It can, however, end plugs 29 and 30 are provided to hold the paper roll in the writing instrument. If such stoppers are used, they are provided with axial openings 32 and 32 so that the electrolyte can get into the interior of the roller to accelerate the impregnation.

9038 4 3/1319

Claims (11)

PATENT ADVOCATE $ 15.4.1969 User files: 21.1 - 8 - PATENT CLAIMS: 1J package for electrolytic writing paper, marked by two separate package parts, namely a roll of electrolytic writing paper (1) in one part (3) and one Electrolyte (7) in the other part (6). 2. Package according to claim 1, characterized by releasable Clamping devices (4,5 or 18, 19, 20 and 23, 24, 25) between the package parts (3,6) around the one part of the cordon off the other part. 3. Package according to claim 1 or 2, characterized in that the writing paper roll on a perforated core is wound up. 4. Package according to claim 1 and / or one of the following, g β k β η η-draws, by an intermediate third package part (21) between the two parts (3, 6), the third Part (21) contains a substance to indicate leakage of the electrolyte (7). 5. Package according to claim 4, characterized by a first Kleane (18, 19, 20) between the intermediate part (21) and the one part (3) and by a second Kleane (23, 24, 25) between the intermediate part (21 ) and dam second part (6). 909843/1318 6. Package according to claim 4, characterized by a double clamp for blocking off an area of the PaMt between the intermediate part and the one part and also between the intermediate part and the second part 7. Package according to claim 1 or 3, characterized in that g e k e η η ζ e i c hn e t that the second package part within the one package part is included. 8. Package according to claim 1 and / or one of the following, characterized in I. marked that the writing paper roll with a solution is impregnated which contains a certain selection of ingredients, which is an electrolytic imprinting solution while a solution of the rest of the ingredients form the electrolyte in said second package part includes 9. Package according to claim I and / or one of the following, characterized in that the writing paper roll contains moisture in the order of 1 to 2 % . 5 · 10. Package according to claims T to 7 and 9, characterized ge k en η ζ e ic H η tt that the writing paper roll is impregnated with a salt selected from the group consisting of sodium and potassium, nit sodium phosphate, oxalic acid im sufficient hatred to give a pH of the order of 3 bit 5, and enough water to give a moisture content of the order of 1 to 2 % , while said electrolyte is an imprinting agent, a stabilizer, a wetting agent and includes enough water to produce the required liquid content 909843/1319 - 10 - 11. Package according to claim 5, characterized in that the package parts are made of plastic and are closed, and that the paper roll is an electrolytic writing paper which contains embossing agents in i * substantially dry state, and that the electrolyte is formed from hm substantially pure water is. 12 «Procedure for the manufacture of a package for electrolytic Writing paper, characterized by the following stages: Impregnation of the paper with an «electrolyte for electrolytic writing, removing the mass content from the impregnated paper and closing the then essentially dry paper into an essential airtight package. ./trf PATENT ADVOCATE 43/1319 ' Lee rs e i fe