US1324038A - Printer s overlay and underlay board and process of making same - Google Patents

Description

u TED STATES PATENT oFFIoE.

STEPHEN J. DICKHAUT, OF SAUGERTIES, NEW YORK, ASSIGNOR TO THE MARTIN CANTIN E COMPANY, OF SAUGERTIES, NEW YORK, A CORPORATION OF NEW YORK. V

rnmrnns OVERL Y AND UNDERLAY BOARD AND-PROCESS or MAK NesAiv E.

No Drawing.

To all wkom'z't-may'concem:

Be, it known th'at'I, STEPHEN HAUT, a citizen of the- United States, and a resident of Saugerties, I in the county of Ulster and State of New York, have invented acertain new and useful Improvement in Printers Overlay and Underlay Boards and Processes of Making Same, of which the following is a'specification.

My improvement relates to printers overlay "and underlay boards and to processes of making them and the base for'such boards, and processesof building up such 'base into suitable printing thickness. .It'has for its object to improve and simplify such processes and torenderthem more accurate and reliable and to produce'an improved over- I la and'underlay board and one more dura is in subsequent printing operations andmore soft and flexible than heretofore possible; It consistsof thenovel processes and products herein described andclaime'd;

My invention is addressed generally to printers overlay and underlay boardsisuch as are described in U. S. Letters-Patent No.

892,166'of June 30th, 1908, to Lankes" &

Schwarzler. In making a base-such as is" described in said patent, difficulty has been encountered in producing a base'that W111 be= stained or tinted only on itsexterior surfaces and not inside, which latter would render the base useless'fo'r its purpose. Difficulty has also been encountered in making not only-the base but also the finished board soft and-flexible so that it will not easily crack in use: My invention is addressed'to' removing these objections and also to making the' finished board strong and" durable and'capable of withstanding stresses, blows and pressure to which it is subjected 111- a press in subsequent printing operations.

I have discovered that suitable paper stock maybe dipped into a staining or tint ing solution and the latter solution stain or tint only the thin exteriorsurfaces of thepaper 'withoutpenetrating its substance, if. the solution is made sticky-or non-penetrat in by the inclusion of a proper stickyor adhesive material and that 'the'base may be made soft and flexible by introducinginto the tinting solution a softening agent. Any suitable coloring material maybe employed and any suitable sticky and'softeningagent s ecifieauon bf Letters Patent.

J. DICK'.

and a half vgi Patented Dec. 9,1919.

Application filed March 15, 1918. Serial No."222,678.

may be employed. I find the following formula gives good results, namely, staining solution containing in ten gallons of'water one-fourth of an ounce of scarlet anilin, one

ounce of gluapreferably hide glue, and one tions may, of course, be varied to suit vary ing constituents and conditions. I take any out between rollers. -The hide glue prevents the stainlng solution 1 from penetrating the" interior of the white rag stock paper so that after the base has been built up with' etchable material, printed' upon and etched,- the pinkstain will forma guide to the etcher to enable him to determine when to stop thes of'glycerin. The proporetching operation. When the etcher notices the pink color appearing," he'will 'etchstill' farther butcarefully and will stop? when the pink color has been eliminated. This will" bring the deeper etched parts of the board I down to the original base and will enable a I In the'operation of buildlng up" a sheet I of paper from th'e'ba'se of sufficient thick ness to receive the imprint of thedesignfor the board, I applyto the base one or more coatings of a buildin iup: solution contain ing etchabl'e building material includinga' tough resistance substance 1 adapted to render the board more durable and resistantito the blows and' pressure incident'te the print ing operations in a press. The substanceI have preferred tofemploy for this purpose is casein, althoughother 'sim'ilar substances may be employed for the'purpose; It isof a tough resistant nature and act's' somewhat aS a cushioning means to the-.printingsurfaces: of the overlay or underlay-board.

I also preferably employ in the" solution for the coating a softeningagent which is adapted to render theboard soft and flexible in use, tending to prevent cracking, etc. I prefer to use for this purpose glycerin, although other substances" of'ga similar nature may be employed.

I also f preferably .-use in the coating solution chalk and "otheri'etchable, hardening,

polishing and binding materials.

Any suitable formula may be employedif for the coating solution to build up .the base;

to the desired thickness. I have found the following formula to give excellent results,

namely, "in 15 gallons of water, 41 lbs. calcium carbonate, 15 lbs. blanc fixe, 43 lbs. of clay, 26 lbs. satin white, -5 lbs. casein, oz.{

boro-phosphate, 1 oz. liquid ammonia, 1 pint glycerin and 101} lbs. of glue, preferably hide glue. In the above formula the clay,

- serves to give body, the satin white to make the surface of the .paper smooth and hard and firm, the blanc fixe to make, the paper. heavy and so that it will take ink better,. hide glue as a binder,.glycerin as a softening 1 agent serving to make the board soft and flexible and casein as the tough resistant cushioning element.

It. will be understood above ingredients may be omitted altogether or may be replaced by equivalent substances and that the proportions may be varied within reasonable limits to suit varying con- I ditions.

my improved method a simple means for, making overlay .and underlay Y boards is provided which enables the etcher to know. exactly whento stop the etching' operation and have a uniform and proper thickness to the board and thezrelief, and' aboard isproduced which is soft and pliable and not lia- "s5 ble to crack in use and which is resistantto the shocksof a printing press in actual operationand is very durable.

What I claimas new and desire to secure .by LettersPatent is: ,o

1.; The process of making printers overlay er underlay boards which consists in dipping the paper base into a staining solutionadapted to stain only the surfaceof the base without penetrating its body and make a good printing surface, including aing etchable building 7. make .:a good printing. surface including adapted tomake the base soft and flexible, applying to the base thus tinted one'or more coatings of a building up solution containing etchable building material adapted to tough resistant substance adapted to make the boardmore durable in use in the printing press and including a softening-agent to render theboard soft and flexible, print-' v.ing uponthe board and dipping the board in the etching solution until the exterior tin of the base is seen and disappears. I I 2. The process of making prlnters overlay or, vunderlay boards which consists in dipping the paper base into a staining solur 60 tion containing hide glue andglycerin, applying to: the base thus tinted one ormore coatings, of a building up solution containmaterial adapted to casein and glycerin.

that some of the 3. .I-n the manufacture Jof a paper base upon 'whichfto build one or'mor'ec'o'atings,

to form a paper of suflicien't thickness upon which to'print a designfor' a printers overcapable of being subseq etched away" I lay or underlay board, the useof a'staining" solution containing .a sticky or adhesive ingredient adapted to cause the solution to stain only the-surface of the base and prevent it' -from penetrating thebodyi of the 7 4;. In the manufacture of a paperbase upon which to'bulldoneor more ooatlngs,

capable of being subsequently 'etchedaway, Y

upon which to build one or more coatings, 5' capable of being subsequentlytetched away,

to form a paper of suflicient thickness upon Which to pr nt aodesign for a printers overlay or underlay board, which consists in making a soft'and flexible v paper base by adding to .the other constituentsof the base i a softening agent adapted to keep the paper paper base into a staining solution containbase soft and flexible, and in dippingYthe ing a sticky or adhesive; ingredient adapted to caus the solution to stain onlythe surface of thebase and prevent it from penetrating thelbody of. the. base. 1 V

6. Theprocess of making a paper base to form apaper of sufiicient thickuessupon WlllOll to print a design, fora printers over} upon which to build one or more coatings, 7 capable of be ng subsequentlyetchedaway,

layor underlayboard whichincludesthe ap l plicationto the base of a softeningagent] adapted tokeep thev paper base. soft and.

flexible.

7. The process of making, a paper base upon which to build one ormore coatings,-

capable of being subsequently etched away, to form a paper of sufficient thickness upon which to print a design for a printers overlay or underlay board, which includes the v application to the base of glycerin. Y p

8. The process of making a paper base uponwhichto build one or more coatings, capable of being subsequently etched away,

toform a paperofsuflicient thickness upon 1 which to print design for a printers over-1 lay or underlay board, which consists-in dipping the paper base into a staining-solution containing hide. glue and glycerin. p

9. Inthe manufacture. of printers overlay or underlay boards the, process of-building up-a sheet ofpaperv ofsuflicientthickness' to receive the imprint, of the desigl'l. for such a board, which consists in applying'to the paper base one or more coatings of a builda stance adapted to make the overlay or under- I lay board more durable in use.

10. In the manufactureof printers overlay or underlay boards the process ofbuilding up a sheet of paper of sufficient thi-clmess to receive the imprint of the design for such a board, which consists in applying to the paper base One or more coatings of a building up solution containing etchable building material including casein.

11. In the manufacture of printers overlay or underlay boards the process of building up a sheet of paper of suflicient thickness to receive the imprint ofthe design for such a board, which consists in applying to the paperbase one or more coatings of a building up solution containing chalk and other etchable materials and casein and glycerin.

I 12. As an article of manufacturea printers overlay or underlay board having a design printed in relief thereon withthe relief portions of the board back of the printed design made up in part of tough resistant or the shocks and pressure of aprinting press.

13. As an article of manufacture a printers overlay or underlay board having a design printed in relief thereon with the relief portions of the board back of the printed decushioning material adapted to withstand sign made up in part of chalkand other filling material, a cushioning material and a-40 softening agent.

In testimony whereof, I have signed my name to this specification.

STEPHEN J. DICKHAUT.