DE2011582A1 - Process for transferring a diazo layer onto a film or another substrate material - Google Patents

Description

IBM Germany Internationale Büro-Maschinen Gesellschaft mbH ' . · '

Boeblingen, March 11, 1970 kd / you

Applicant '. International Business Machines

Corporation, Armonk, N.Y. 10504

Official File number: New registration

File number of the applicant: Docket SÄ 968 034; SA 968

Process for transferring a diazo layer onto a film or other substrate material. _____

The invention relates to a method for applying individual. Micro images on non-image parts of microfiche templates.

It is known to store information in the form of microimages, which are strung together in M horizontal and vertical arrangements on microfiche film cards. This documentation form has considerable advantages over the previously used card-shaped recording media with windows into which the film parts carrying the micro-image were inserted.

For applying information to non-image parts of microfiche templates it was proposed that the entire microfiche template be provided with a removable cover layer on both sides, for example a pigmented paper or a UV-absorbing plastic film. The top layer is in certain

009842/1592

Gaps with perforations, so that always over the part the photosensitive layer to be exposed imagewise, the top layer can be removed. The disadvantage is that during storage of the microfiche originals in the covered, light-sensitive layers and in particular during exposure of the originals in the edge zones around the exposed layer a coupling reaction occurs to a certain extent and the materials become unusable.

It is also known that the individual microimages in transparencies to be inserted and saved in the form of film strips. The disadvantage of this method is that the handling of such Rolling film is much more cumbersome compared to sheet film.

Another method of storing micrographs is described in US Pat. No. 3,373,265. In this known method, a microfiche template is used on which finished microimages are attached with the image side down in a horizontal and vertical arrangement. The images are produced before transfer by imagewise exposure and development of diazo films. If the image side were to be on the side facing away from the base, an undesirable relief pattern would be present on the surface of the template, which would make it difficult to make copies of this template. This known method can not be used to transfer additional micro-images to a Diazofilmvorlage generated in the already-exposing and developing pictures ³ were *, because the image side by subsequently below * added pictures are backwards to the ^already! existing images on the template.

The object of the invention is to provide a method for supplementing information to be indicated on parts of microfiche templates that are still image-free, in which sharp images on the non-image parts of the template can be generated without other non-image parts of the template must be covered and

Docket SA 968 034/035 009842/1592

- - 3 already existing images are adversely affected.

The method of the invention is characterized by having a sensitized diazo layer that is on a transfer sheet is attached to the microfiche template, the diazo layer after removal of the transfer film, it is exposed imagewise and then developed.

To transfer the diazo layer, increased pressures and increased Temperatures applied. The attachment of the diazo layer on the microfiche template takes place according to one embodiment of the invention f by means of a thermoplastic adhesive layer.

A thin, transparent film, for example made of polyethylene terephthalate or cellulose acetate, or a base made of paper, glass or metal is used. the The base has a layer thickness of about 0.01 cm. The microfiche can be used as a self-supporting film or for better handling in the window of a card. It can also be used in conjunction with other information for example be kept as part of a perforated computer card.

To prepare the light-sensitive layer comprises a diazo be niumsalz g, at least one coupler component, at least one stabilizing agent and at least one thermoplastic resin which adheres to the Mikroficheunterlage used. Suitable diazonium salts are fluoborates such as p-morpholinobenzene diazonium fluorate, 2-ethoxy-4-diethlyminobenzene diazonium fluorate, 2,5-diethoxy-4-morpholinobenzene diazonium fluorate, p-dimethylaminobenzene diazonium fluorate and the corresponding zinc chloride salts.

Suitable coupler components are, for example, N-β-hydroxyäthyI-oC-resorcylamid, which gives a brown dye on coupling, m, m'-ethylenedioxydiphenol, which a brown-yellow dye supplies and 2,3-dihydroxynaphthalene-6-sulfonic acid as a coupler

Docket SA 968 O34 / O35 0 0 9.8 4 2/1 S 9 2

component for a blue dye. The coupler component will in an amount between 5 and 200 percent by weight, preferably between 100 and 200 percent by weight, based on the diazonium salt used.

Stabilizers are used to prevent the premature coupling reaction added. Hydroxycarboxylic acids such as citric acid or tartaric acid come into consideration as such. As a stabilizing agent are also arylsulfonic acids, for example 1,3,6-naphthalenetrisulfonic acid usable. They are used in amounts between 5 and 200 percent by weight, preferably between 100 and 200 percent by weight based on the diazonium salt used.

Thermoplastic materials are used to produce the photosensitive layer Binder used in amounts between 100 and 400 percent by weight, based on the constituents contained therein. When preparing the coating solution, it is expedient to use the coupler component or components are added with stirring to the polymeric binder dissolved in a solvent. It the stabilizing agent follows and, when this has gone into solution, the diazonium salt or salts immediately before the coating. According to a further embodiment of the invention, the thermoplastic binder layer can with a solution of light-sensitive compounds are soaked and then hardened.

Particularly suitable solvents that do not attack the substrate the binders are, for example, methanol for methyl polymethacrylate and methyl ethyl ketone for polyvinylidene chloride. The solution, which contains the polymeric binder and the other components, can be applied directly to the microfiche will. However, if there are further micro images on the microfiche template later are to be generated, it is advantageous if the diazo coating solution is not applied directly to the non-image parts of the original to be coated in order to avoid disadvantageous

Docket SA 968 034/035 009842/1592

Avoid influencing existing images. The coating solution is applied to a transfer film and the photosensitive layer from this to the microfiche. the The coating solution should wet the film to be coated, the photosensitive layer should, however, after drying ' adhere poorly to the carrier film. Suitable transfer film are about 0.01 cm thick self-supporting films made of polyethylene terephthalate, Cellulose acetate, cellulose acetobutyrate, polycarbonate or polyimide.

The coating can be obtained by heat treatment or by distilling off of the solvent are dried in vacuo. Should the coating be too tight on the carrier film after drying adhere, then it is advantageous to apply the transfer film before application to treat the coating with an agent to reduce adhesion. This must match the synthetic resin system used compatible and such that the coating solution wets the transfer film. For acrylic resins, for example Carnauba wax or fatty acids such as palmitic or stearic acid are suitable.

On the transfer film provided with the dlazo layer, or on the Microfiche template, or a " thermoplastic adhesive layer applied. Depending on the choice of substrate on which the diazo layer is applied, polyvinyl acetate, Vinyl acetate-vinyl chloride copolymers, acrylic methacrylic acid ester copolymers, Cellulose ester or polyvinylidene chloride

suitable

■■■ '}! · ■ -'-- - ■ ·. . ■

To transfer the transfer film with the layer side facing placed at the bottom on a non-image part of the microfiche template. on the stratification is exerted at temperatures between 140 and 150 ° C., for example with a pressure roller. At this Treatment also escapes between the microfiche and the carrier

DocRet SA 968 034/035 ΟΟίβϊ * / 1

film trapped air. After cooling, the diazo layer adheres on the microfiche template. The transfer film will, if necessary removed from the diazo layer after slight heating.

After the transfer, light is radiated onto the diazo layer through a template in contact or through an image projection. Light sources can be used which emit light in the infrared, visible or ultraviolet spectral range. In exceptional cases, higher-energy, ionized radiation is also used. The latent image obtained is developed with aqueous ammonia ψ or anhydrous ammonia under pressure.

The diazo layer is transferred to the microfiche template with devices that are based on FIGS. 1 and 2 are explained in more detail. The FIGS. 3 through 6 show the coated transfer films about the documents to be coated.

In Fig. 1, the coated transfer film parts are in a storage container 1 contain. A transfer plate 2 provided with resistance heating is attached to the storage container. This is slidable on the rails 3 in the vertical direction. A coated transfer film is applied by hand or by a fc automatic feeder 4 with the layer side down pushed into the transfer plate 2 under the resistance heater and aligned. In order to fix the layering on the microfiche 5, the plate 2 is lowered. The temperature and the through the pressure exerted on the plate 2 are such that the transfer film adheres to the template by means of the thermoplastic binder.

A second device for transmission is shown in FIG. A Microfiche 5 is located between two heatable rollers 6 and 7. A coated transfer film 8 is applied with the layer side 9 placed down on the microfiche. The temperature and the

Docket SA 968 034/035 009842/1592

Required pressure is exerted by rollers 6 and 7.

Figure 3 shows a portion of a coated transfer film. Instead of Coated film items can also be a roll of film be used. The diazo layer 12 is located on a base 13. The film 11 has perforations at certain intervals 15 so that it can be easily cut and used, for example, in the device shown in FIG can.

Fig. 4 shows a schematic representation of one in which he |

inventive method used transfer film. On a Microfiche template 22 has a thermoplastic adhesive layer 20. The transfer film 24 is sensitive to the light Layer "26 coated.

In Fig. 5, the transfer film 24 is the photosensitive one Layer 26 and the thermoplastic adhesive layer 20 provided.

In FIG. 6, the photosensitive layer 26 is located on the transfer film 24. This and the microfiche template 22 are provided with thermoplastic adhesive layers 20, 28. " ■ - ■ ι

The production of microfiche templates is based on the exemplary embodiments and the subsequent addition of the information on the template by applying further microimages to the still image-free parts of the original are described.

Docket Sä 968 O34 / O35 Ö 0 SS 4 2 AI 5 9 JJ

- 8 Example 1: A mixture consisting of

18 ml of a 1% solution of cellulose acetobutyrate

in methyl ethyl ketone
7 ml of a 4% solution of polyvinyl acetate in

Methyl ethyl ketone
0.3 g citric acid

1.0 g of 3-hydroxy-2-naphthoic acid ethanolamide 0.5 g of 2,5-diethoxy-4-morpholino-benzenediazonium

fluoborate

was stirred until a clear solution was obtained, then filtered and by application rollers by means of meniscus transfer onto a self-supporting film made of polyalkylene terephthalate 0.01 cm thick, which had been pretreated with water and acetone in a dust-free environment. The layering was 10 minutes long dried at 75 C. The layer thickness was such that the maximum value for the optical density, measured in the visible range of the spectrum with a blue dye was between 1 and 1.5. An optical density in this area was found to be Layer thickness of about 5 u is achieved.

The diazo films were exposed and developed in an IBM 2D microscopic copier. A maximum image density thereby became obtained that the exposure device remained on and the film was fed through the device several times. if an original was used, the original was exposed in contact and the latent image was used for development several times passed through the developing device. The development time was 10 to 15 seconds.

Docket SA 968 034/035 0098A2 / 1S92

Example 2:

IG g of a copolymeric acrylic methacrylic acid ester, which is available under the trade name Acryloid AlOl, were dissolved in 50 ml of methanol. This solution was stirred into a solution of 10 g of polyvinylidene chloride, which under the Trade name Sarah QX2167 is available in 46 ml Me thy 1 a thy Ik e ton given. The mixture was used to disperse the synthetic resins in the liquid Phase in a ball mill for 48 hours acts. Then, were p-dimethylaminobenzene diazonium fluorate and 11.3 g of acetonitrile, in which the diazo component is soluble, are added. ^ "The resulting solution was as in Example 1 indicated, applied to a cleaned polyester film and cured at 80 C for 10 minutes.

The layer was used to produce images using the vesicular method imagewise exposed. The light-sensitive compound in the exposed areas became photolytic with elimination of Nitrogen retained by the binder decomposes. A heating of the layer led to the deposition of gas bubbles ^ in the same. At these, incident light is different from Scattered surroundings.

If afterwards on parts that are still image-free according to the examples I or 2 made microfiche template another Should be applied, then a sensitized, not yet exposed diazo film by means of heated rollers under Print can be attached to the designated place on the template. The film covering the diazo film is removed with it only the sensitized dlazo layer remains on the original. Light is radiated onto this through a template in contact or through an image projection. The latent image is with

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aqueous ammonia or anhydrous ammonia developed under pressure.

Example 3: To coat two transfer films, one Solution made from the following components:

50 ml of methyl ethyl ketone

50 ml of methanol

10 ml ω-methoxy-ethyl acetate
1 »5 g of p-toluenesulfonic acid
1.0 g sulfosalic acid
0.32 g 2,3-dihydroxynaphthalene 0.05 g 4-chlororesorcinol
5.70 g of m-pentadecylaminophenol 1 »3 g of p-diethylaminobenzene diazonium fluorate 1.8 g of p-morpholinobenzene diazonium zinc chloride

The solution was halved and each half was coated with cellulose acetobutyrate on a self-supporting film made of polyethylene terephthalate soaked.

a) One of the layers was used to create an adhesive layer 50 ml of a 5% solution of polyvinyl acetate in methyl ethyl ketone, the 0.1 g of a sulfonamide-formaldehyde resin contained, which is available under the trade name Santolit, applied.

The layering was in each case at a distance of 12 mm to the polyethylene terephthalate base layer scratched. Then it was applied with the adhesive layer down on the one to be coated, by exposure to light deactivated area of a conventional dlazofich. For transferring the adhesive layer and the dlazo layer

was a pressure of about 2 seconds at about 150 ^{0 C}

2
3 kg / cm applied. The two layers adhered very well to the diazofiche and the quality of the image obtained by exposure and subsequent development was excellent.

Docket SA 968 034/035 009842/1592

b) To produce an adhesive layer, 50 ml of a 2% solution of polyvinylidene chloride in methyl ethyl ketone, which contained 0.1 g of a sulfonamide-formaldehyde resin, which is available under the trade name Santolit, were applied to the other layer. The same solution was also used to treat the diazofiche to which the transfer was to be made. The further treatment took place as described in example 3a. For transmission of the diazo layer 3 seconds was applied at about 150 ⁰ C, a pressure of about 5 kg / cm.

Docket SA 968 034/035 00384 2/1592

Claims (4)

P AT E NT A N S PR I) CH E 1. A method for applying individual microimages to non-image parts of microfiche templates, characterized in that that a sensitized diazo layer, which is located on a transfer sheet, on the microfiche template is attached, the diazo layer is exposed imagewise after removal of the upper carrier film and then is being developed. 2. The method according to claim 1, characterized in that the attachment of the sensitized diazo layer the microfiche template using a thermoplastic Adhesive layer takes place, which is applied to the diazo layer and / or the microfiche template. 3. The method according to claim 2, characterized in that a polyvinyl acetate as the thermoplastic adhesive layer, a vinyl acetate-vinyl chloride copolymer, an acrylic-methacrylic acid ester copolymer, a cellulose ester or a polyvinylidene chloride is used. 4. The method according to any one of claims 1 to 3, characterized in that that elevated pressures and elevated temperatures are used to transfer the diazo layer. Docket SA 968 034/035 009842 / 1S92 L e r s e i t e