Патент USA US2119546код для вставки
June 7, 1938. ' x D_ w_ KNAGGQ v 2,119,546 PRINTING ON NONABSORPTIV I Filed Dec. 29, ‘1953 \ . INVENTOR , DoMLDWk/Msas BY ‘ - ATTORNEYS 2,119,546. Patented June 7, 1938 um'naov STATES PATENT OFFICE. 2,119,546 PRINTING ON NONABSORPTIVE SURFACES Donald W. Knaggs, City Island, N. Y., assignor‘ to Anigraphic Process, Inc., New_York, N. Y., a corporation of New York - ‘ Application December 29, 1933, Serial No. 704,456 5' Claims. (Cl. 41-26) , This. invention relates to the art' of printing on a nonabsorptive surface, such as glass con neither may ‘contain any ingredient which will cause the other to disintegrate or change its phys tainers, ceramic materials, metallic containers, ical or chemical characteristics. plastics such as bakelite, or any nonabsorptive 5 or nearly nonabsorptive surface. It is particu . larly related to printing on a glass container. At present it is customary in most industries in which bottles are used, to label the bottle either by moulding, such as is done frequently 10 with milk bottles, or by printing a label on paper and affixing this label to the bottle by a suitable adhesive. It is highly desirable for many reasons to be able to print a label directly on the bottle. It is possible in this manner to producea product ' having a more pleasing appearance, and this also avoids the loss of bottles in those industries‘ where bottles are returned to the manufacturer of the product to be refilled, and is less expensive than repeated re-labeling. ' It has heretofore been necessary in printing on a bottle to bake the bottle with its printed . ‘label for many hours at a high or fusing tem perature in order to make the printing fuse into the glass. - ' My invention is of a new means for, and method of, printing on a-bottle which is simple and easy to perform and may be done quickly and eco nomically. and _ at low temperature. In some forms in which I practice my‘invention I use a heating process for a short time but this heat ing involves only a very small proportion of the heat or time required in baking processes of the prior art. ' I may practice my invention on a perfectly , After varnishing the label I heat the bottle for approximately ?fteen to twenty minutes at a temperature of approximately 300° F. This tem perature-and time are the maximum that may be necessary for the best results. A good product may be'produced in a somewhat less time. This heating to 300° does not serve to fuse the design l0 into the glass since the fusing temperature of the type of glass used is about 1100". The process may be saidytherefore, to be performed. in the" absence of fusing heat. The label which is pro duced by my process as just described adheres very strongiy to the bottle and has the appear ance of being practically a part .of the bottle itself. It may of course be applied in any suitable color or combination c! colors and therefore ma present a very attractive appearance. .1 In washing bottles it is customary to usean alkali solution of from 2 to 10%, and in some cases to employ stiff. revolving brushes. Since my ink and varnish are both alkali-resistant. and will withstand abrasion and vhot water. a bottle which has a label printed thereon in accordance with the process described above will withstand a considerable number of washings without affect ing its appearance. Such a process is entirely suitable for any bottle which is not intended to be re?lled, such. for example, as ‘a'bottle of per-' fume, catsup, whiskey, etc. It is also suitable. as stated above, for a bottle which may be re?lled a number of times and vigorously'washed- and sterilized between each two ?llings. ' smooth, vitreous surface- It is necessary in prac 35 ticing my invention to use an ink that is quick In accordance with another method of prac- ' drying, that is hard-setting in order to with ticing my invention I ?rst .etch the surface stand abrasion, that is alkali-resistant, and whose \ which is to be printed by chemical or'physlcal colors are fast. An ink having these character 40 istics may be produced by anyone skilled in the art of making ink. . After printing the label on ‘the bottle the ink must be set as in any case where a hard-setting ink is used. This is accomplished by a ?ash of heat. That is the ‘printed label may simply be means, such as hydro?uoric acid or sand blast‘ ing. I then use the same ink as before to print 40 - on the etched surface and use the same varnish as before to cover the ink and also to cover the etched surface if desired. The ink and the var nish are set in the same manner as in my previ ous process. The varnish in this case fills the 45 passed over a hot ?ame. Setting the ink thus roughened surface of the bottle where it has been requires only a few seconds. It is possible in ' etched and causes the bottle to have the appear practicing my invention to set the ink without ance of not having been etched at all. . the use of any ?ame, as it will set in a short time . when I practice the process just described the resulting product is a label which will adhere to After the ink is set I cover the printed portion the bottle for its life under any circumstances of normal use. That is the bottle may be returned 50 by simply exposing it to the air. v with a varnish. This varnish is a synthetic resin varnish that is alkali resistant and thermal set: to the manufacturer time after-time, sterilized ting, such as bakelite varnish. The varnish and with a strong alkali solution, and washed with 65 the ink must of course be compatible, that is. still’ brushes for extended periods without a?ect 2 ‘2,119,546 ing the label in any way. Such a method is, therefore, very advantageous for use with milk bottles and beer bottles, for example, where it 1. The method of printing on a nonabsorptive surface in the absence of fusingheat'for the said surface which consists in etching said surface, printing on said surface, and covering said is customary for them to be returned over and printed matter with a varnish. ~ over for re?lling. 2. The method of vprinting on a nonabsorptiv It is also possible to produce a product which is suitable commercially for some purposes by surface in the absence of fusing heat for the said following the steps just described, but omitting - surface which comprises etching said surface, . the last one. That is, if the surface is ?rst 10 etched, the ink will adhere sufficiently well for printing on said surface with a quick-drying hard-setting ink, and covering said ink with a 10 syntheticé-resin thermal-setting varnish. many purposes, but will not withstand the treat 3. The method of printing on’ a nonabsorptive ,ment it will withstand if it is also covered with 7 surface in the absence of fusing heat for the the varnish. said surface which comprises etching said sur In the drawing— ' ' face, printing on said etched surface with a Figs. 1 and 2 illustrate bottles to which labels, 15 indicated by the word “label”, have been applied quick-drying hard-setting alkali-resistant ink in accordance with any of the methods described above. The label may in any case appear to be simply a printed legend applied directly to a clear 20 bottle. and covering said printing with a synthetic-resin thermal-setting alkali-resistant varnish. 4. The method of printing on a transparent glass container which comprises the use of a 20 Fig. 2 illustrates a label of more complicated quick-drying hard-setting ink, setting said ink design than Fig. 1. In this case a background after applying it to the bottle, covering said ink may be printed on thebottle in one color and the ‘with a synthetic-resin varnish, and then heating said bottle for approximately fifteen minutes at ‘ label itself printed in a different color. The cir 25 approximately 300° F. cular back ground shown in this ?gure may, of 25 5. The method of printing on a non-transpar course, be ?rst etched and then printed in a color desired and the “label” then printedin ent glass container whichv comprises the use of a different color. Varnish may then beapplied a quick-drying hard-setting ink, setting said ink to the ‘entire surface as before described. My after applying it toithe bottle, covering said ink a synthetic-resin thermal-setting varnish, 30 label may, of course, be printedin reverse, in with and then heating said bottle for approximately which event the contents of the bottle may sup . ply the color which causes the label itself to ?fteen minutes at approximately 300° F. 1 stand out. ‘ What is claimed is: DONALD W. KNAGGS.