US2028948A - Decorative paper and method of making the same - Google Patents

Description

`gam. 28, 1936. J, J, POHLMANN 2,028,948

DECORATIVE PAPER AND METHOD 0F MAKING THE sAr-.mV

Filed NOV. 7, 1934 mvENToR JO'SEP/f 'IPO/a MAM BY ZZJM. QL M TTORNEYS Patented Jan. 2s, 193e '2,028,948

UNITED STATES PATENT oEFlcE DECORATIVE PAPER AND ME'rnoD or MAKING THE SAME Joseph J. Pohlmann, south Hadley centen-Mass., assignor to The Beveridge-Marvellum Com` plany,tgolyoke, Mass., a corporation of Massac use Application November "l, 1934, Serial No. 751,879 2 Claims. (Cl. 41;-26)

'I'his invention relates to the decoration of the'. others con-conformably.- It is not necespaper, and more particularly to an improved sary to attempt any particular relation with rei'- method of the type in which a crystallizable maerence to the degree oioff registration between terial in a lacquer containing volatile solvent is the two printings. In practice the sheet lis mere- 5 applied to the paper and such material permitted ly run through the press hit-or-miss and since 5 to form a crystalline pattern upon evaporation it would be practically impossible to secure exact of the solvent. According to the prior practices registration even ifdesired a satisfactory degree of producing crystalline coated papers, the charof non-conformity is invariably obtained. The acteristic appearance has resided solely in the application ofthe second printing is diagramcrystalline formation and the contrast afforded matically shown in Fig. 3 at I2, the vcolor blue l0 by the mat and glossy areas resulting from being indicated. The gross effect of the comgrowth of the crystals on the surface of the bined printings is indicated in Fig. 3 where cerpaper. It is the object of myl invention to protain color areas overlap as at I3 resulting in a vide a' method of decorating paper and employcompound color. Other areas show the single l5 ing the steps of forming a crystalline structure colors with interspersed areas of white. Due to l5 over the surface of the paper which will give to the application o f colors in variously spaced dots the crystals so formed an appearance of iridesa further variety of eiect is obtained as indicence or. opalescence and depth not obtainable cated in Fig. 6, where thedots of the second `from the' crystal coating alone. color are indicated in dotted line as at I4; For

In the accompanying drawing, which diagramexample, inasmuch as in some places 1) a max- 20 matlcally illustrates certain of the steps of the imum intensity of blue falls on the areas of method of this invention, maximum intensity of the orange; (2) a-maxi- Fig. 1 shows in diagrammatic form the apmum intensity of blue falls on a inpearance of the finished paper; tens-ity of orange; (3) a intensity of Fig. 2 shows diagrammatically the 'rst step blue falls on a maximum intensity of orange;' 25

of the method; (4) a minimum intensityof blue falls on a mini- Flg. 3 shows diagrammatically the second step; mum intensity of orange. There are of course Fig. 4 is a similar view showing the third step; similar combinations of intermediate intensities Fig. 5 is a diagrammatic viewpn a greatly as well as areas covered by varying intensities v enlarged scale showing features of the rst step of a single color. L

comparable with the showing of Fig. 2;` and The Sheet/is then 0210 mOre passed thrllgh- Fig. 6 is a view similar to Fig'. 5 but comparthe press and .'a third color indicated as pink' able with the showing of Fig. 3. at 'l5 is applied as before out of register with As the first step of the method, the paper 9 is the two preceding colors. The result is diagrampassed` through a printing operation to apply matically indicated in Fig. 4 and it will be ap- 85 color in irregularly shaped areas as shown in Fig, preciated that there is thereby obtained various 2 at l0, The color in these areas is applied 1n combinations and permutations of the three colthe form'of dots as indicated at Il in Fig. 5, the ors and their'various intensities along the lines dots being variously spaced as shown in the latindicated above.

40 ter ligure so that the intensity fthe color va- As previously stated, the drawing purely. 40

ries over the irregular areas as will be obvious dlal'ammatic. In practice the color areas, far .from the grouping of the dots in Fig, 5, While from having the clear cut denition indicated for the purpose of illustration thev color areas are by the iigures of the drawing in which convenvshown oi uniform intensity and withvclearly detional cross-hatching isused to indicate color,

ned edges in Fig. 2, it will be obvious from Fig. give an almost indeinable cloudy appearance. 45

5 that in actual practice there is no clearly de- Moreover, the shades used are preferably so light fined boundary especially where the color inthat a single printingv is more suggestive of color tensity is very light. For purposes of illustration than productive of a definite colored appearance. the ilrst color application is shown as orange With the addition of 'each successive color the which should be relatively light in shade. 'The degree of color sensation is increased; mainlyas 50 sheet to which the rst color has been applied the result of the appearance of those are'as where y is now run through the press a second time. The the maximum intensity 0f the Severaloolors have printing surface used may be the same as for been superposed.. The shades produced by the the previous-printing but out of register with the combination of two or more colors are widelvand first so that'the succeeding color areas overlap irregularly scattered and variable as to hue and 55 intensity, and the general eect -is a softly mottled cloudy appearance, the arrangement 'and relation of the colored dots being apparent only from a microscopic examination.

Over the paper thus prepared a crystallizing solution is spreadin any usual or preferred man1- ner and permitted to crystallize as is diagrammatically indicated at I6 in Fig. 1 The eect produced by the colored areas as they appear through the crystalline structure is Ito give to the crystals an effect of iridescence which is the result not only of the colors themselves but of the varying texture .of -the crystals which modify the color ,electa` This iridescence is diagrammatically suggested in Fig. 1 by the varying areas of surface shading I1 and stippling I8. It desired the crystalline solution may be tinted to supply part of the iridescen't eect or to modify and vary the eiiect of the underlying colors as a whole. For example by using a grey tinted crystalline solution a mother-of-pearl eiect may be obtained whereas cream or pink tinted solutions produce respectively yellow or pink pearl elects.

While the color areas are above described as applied by successive oi register printings, it will be understood that the color areas may be supplied by spraying or other ways by which the desired non-conformity of the areas is obtained. The color may be applied while the paper is still on the paper machine and the varying intensitiesfsecured by the varying absorption o! the color by the moist paper, or the nished paper can be moistened.

It will be understood that the invention is not limited to the specific colors above mentioned and that the colors will be chosen in view of the exact eiect desired.

I claim: l. The method of decorating paper which comprises successively and non-conformably apply- Aing to the surface of the paper a plurality of irregular areasy of at least two colors, said areas having no defined boundaries and being formed of dots of color, light in shade, and variously spaced to provide various color intensities over the several areas, and thereafter forming thereon an unbroken translucent crystalline coating.

2. A decorated paper comprising a paper sheet having irregular areas respectively of orange, blue and pinkncolor, said areas being formed of small dots of color varying in spacing, the colors being light in shade and the several color areas nonconformably overlying each other, and an unbroken translucent crystalline coating overlying the colors, the color combinations and permutations produced by the non-conforming color areas appearing' through the facets of the crystals with a` characteristic appearance of cloudlike iridescence.

JOSEPH J. POI-lLMANN.

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