Патент USA US2130360код для вставки
_ Patented Sept. 20, 1938 £130,360‘ ; um'rso sTArEs . PATENT , OFFICE 1 ' 2,130,360 raonuo'noN or armors 1N FILMS‘, snnsrs, AND suntan MATERIALS Brian Edward Merriman Miller, London, England, assignor to Celanese Corporation of America, a corporation of Delaware , . No Drawing. Application November 10, 1937, Se rial No. 173,849. In Great Britain September 15, 1937 v 11 Claims. (CI. 41-33) This invention relates to improvements in or relating’ to effect materials, and particularly to arti?cial ?lms, sheets and similar materials ex , hibiting mother-of-pearl or other effects. This application is a continuation in part of my application S. No. 83,328 ?led June 3rd, 1936. It has been discovered that materials exhibit ing excellent ornamental effects may be obtained by causing the pile side of a pile fabric to adhere 1° to a'translucent or transparent arti?cial ?lm or similar material and thereafter separating the pile fabric from the ?lm. - _ of cotton or linen yarn. Where it is desired to eife'ct relatively strong adhesion between the-pile fabric and the ?lm it is preferable that the pile of the fabric should be made of the‘ same sub- ; stance or a similar substance to the material of 'thei?lm; Thus there may be adhered to a ?lm having a basis of an organic derivative of cellu lose a pile fabric which has a pile of an organic derivative of cellulose. Where, on the other hand, it is desired to effect only light adhesion, the pile of the fabric is preferably made of a ‘different material from the material of the ?lm, e. g. a cellulose derivative film may be caused to adhere to a pile fabric in which the pile is made of re-v The term "?lm" used in the present speci?ca tion is to be understood'to include sheets’, foils - generated cellulose, cotton, natural silk or other 15 15. and similar materials, and the expression “trans non-thermoplastic material. . _ parent films” is to be understood to include trans Various eil'ects maybe obtained by employing pile fabrics in which the pile is dyed in one or ‘The degree of adhesion effected in accordance ‘more colors or is of uneven lustre due, for ex-, with this invention may vary widely. It may be ample, to the presence of.cellulose acetate yarns 20 20 only a light-adhesion so that on stripping the and regeneratedcellulose' yarns, or of lustrous pile fabric from the ?lm separation is effected ‘and delustred cellulose acetate yarns} Or, again, without leaving pile ?bres adherent to the ?lm ' a pile fabric may be employed in which the pile so that the ?lm merely carries the "pattem” of ‘is of‘uneven thickness, e. g. a locally carbonized the pile fabric impressed on it.. Alternatively, ‘pile fabric. Of particular value according to this 25 the adhesion may be relatively strong so that on invention are pile fabrics in which the pile lies in stripping the pile fabric from the ?lm, pile ?bres different directions in. different areas as, for ex remain ?rmly adhered to‘ the ?lm, and in this ample, crushed pile fabrics in which the pile case a more pronounced effect is obtained which yarns are laid in different directions in a more lucent ?lms. ' _ - I l is particularly valuable. for many purposes. 7 30 ; or less haphazard manner. Such fabrics may be The transparent ?lm, which may be colorless produced, for" example, by pressing cellulose ace or colored and may be embossed, may have, a tate pile fabrics with suitable rollers in the pres- ' basis of regenerated cellulose or nitrocellulose or ence of steam. By the use of crushed pile fab a non-cellulosic transparent substance, but‘ma: . rics beautiful ornamental effects resembling 35 Lterials having a basis of an organic derivative of e mother-of-pearl may be obtained. ' 35 cellulose, e. g. cellulose 'pi'opionate, cellulose bu-' It is not necessary, however, that the pile fab tyrate, cellulose .nitro-acetate, methyl cellulose, "ethyl cellulose,.benzyl cellulose, and particularly cellulose acetate, have been .found to be specially valuable. Such materials, especially if they have _ 40 a high content of substituent groups, e. g. in the case of cellulose acetate corresponding to an .acetyl content of 56-58% or more, are'relatively moisture-resistant, which is of considerable value for certain purposes. However, ?lms of other 45 ' substances may be employed, e..g. ?lms having a basis of a polymerized vinyl acetate, a polymer ized acrylic ester or ether or other synthetic resin. ‘ _ I _ The pile fabric employed may be 'made of any ric should be a patterned fabric. Very ‘good re- _ sults can be obtained by the use of a plain pile fabric of uniform character, the pressing opera 40 tion necessary to effect adhesion to the ?lm itself causingjthe lay of the pile to be deformed- in a haphazard manner. ‘ ' Adhesion between the pile fabric and the trans parent ?lm may be effected in any suitable man 45 ner. When the material of the ?lm and/or the materlal of the pile of the pile fabric are thermo~> plastic,‘ e. g. in the case of a cellulose acetate ?lm and a pile fabric having a pile of cellulose, '. acetate‘yarns, the necessary degree of adhesion may be effected by means of heat and pressure, 50 suitable ‘material, e-._ g. cellulose acetateor other . for example, by placing the ?lm on the pile sur cellulose derivative, regenerated ~cellulose, cotton or natural silk. The pile‘ and the base of‘ .the fabric may both be of the same substance or they may be different, e. g. the pile maybe made of 55- cellulose acetate yarn and the base of the fabric face of the fabric and pressing the ?lm and the fabric together in a heated press or passing them between heated rollers. _ 0r, again, the film and/or the pile may be moistened with a suit 2,130,300 able softening agent and the ?lm and pile fab ric then pressed together with or without the use of heat. ' Suitable softening agents for'cellulose acetate materials are,,for example, acetone, methylene ethylene ether, ethyl lactate, glycol monoacetate, methyl glycol monoacetate, mono-, di- and tri acetins, diacetone alcohol and dioxane. Prefer side of a crushed pile fabric, and thereafter stripping the pile fabric from the ?lm, the de gree of adhesion effected being such that on stripping the pile fabric fromthe ?lm pile ?bm remain ?rmly adhered to the . ' 5. Process for the production of mother-of pearl effects on transparent arti?cial ?lms hav~ ably a mixture containing a volatile solvent and ing a basis of cellulose'derivatives, which com a relatively low boiling solvent is employed, e. g. ‘prises causingtoadheretothe?lmthe pile side‘ a mixture of acetone and diacetone alcohol. The of a.crushed pile fabric, and thereafter‘strip 10 ping the pile fabric from the ?lm, the degree of softening media may contain, if desired, a small adhesion effected being such that on stripping proportion, e. g. 2-4%, of a cellulose derivative the pile fabric from the ?lm pile ?bres remain as, for example, cellulose acetate. ?rmly adhered to the ?lm. ' 15 Instead of relying solely on the use of heat or 6. Process for the production of mother-of 18 an organic or inorganic softening agent to facili Dearl effects on transparent arti?cial ?lms hav tate the adhesion, an adhesive substance may be ing a basis of cellulose derivatives, which com employed. prises softening the surface of the ?lm'by treat After the adhesion has been e?ected the fabric ment with an organic softening agent, causing 20 _is stripped from the ?lm and the ?lm may be brushed or rubbed down to remove any loose the pile side of ‘a crushed pile fabric to adhere to the softened surface, and thereafter stripping pile ?bres which are not ?rmly adhered to it. the pile fabric from the ?lm, the degree of ad The products/obtained according to the inven tion are very suitable for use, for example, for hesion effected being such that on stripping the fabric from the ?lm' pile ?bres remain ?rmly lamp shades and for the decoration of drums pile adhered to the ?lm. ‘ and other musical instruments. Materials where 7_. Process for the production of in the ?lm has a basis of cellulose acetate or other pearl effects on transparent arti?cial mother-of ?lms hav relatively water-resisting substance are also very ing a basis of cellulose derivatives, which suitable for use where resistance to washing or prises pressing the pile side of a, crushed pilecom fab 30 to humid conditions is desirable, as, for exam ple, for table tops and as wall decorations in ric on to the surface of the ?lm under the action of heat so as to cause the‘ pile ?bres and the bathrooms. _' ?lm to adhere together, and thereafter stripping Having described my invention, what I desire the pile fabric from the ?lm, the degree of ad to secure by Letters Patent is: hesion e?'ected being such that on stripping the 35 1. Process for the production of mother-of pile fabric from the ?lm pile ?bres remain ?rmly 35 pearl effects on transparent arti?cial ?lms, which adhered to the ?lm. . comprises causing the pile side of a crushed pile 8. Process for the production of mother-of fabric to adhere to the ?lm under pressure and pearl effects on cellulose acetate ?lm, which com thereafter stripping the pile fabric from the ?lm. prises causing to adhere to the ?lm the pile side 2. Process for the production of mother-of of a crushed'pile fabric in which the pile has a pearl effects on transparent arti?cial ?lms, which comprises causing the pile side of a crushed pile basis of cellulose acetate, and thereafter strip ping the'pile fabric from the ?lm, the degree of fabric to adhere to the softened surface of a ?lm adhesion e?'ected being such that on stripr?ng under pressure and thereafter stripping the pile the pile fabric from the ?lm pile ?bres remain 45 fabric from the ?lm. ?rmly adhered to the ?lm. 3. Process for the production of mother-of 9. Transparent arti?cial ?lms having pile pearl effects on transparent arti?cial ?lms, which lying in diiferent directions ?rmly adhered comprises causing the pile side of a crushed pile ?bres thereto, and presenting a mother-of-peari effect. fabric to adhere to the ?lm under pressure, and 10. Cellulose derivative ?lms having pile ?bres thereafter stripping the pile fabric from the ?lm, lying in different directions ?rmly adhered there the degree of adhesion effected being so light to, and presenting a mother-of-pearl effect. that on stripping the pile fabric from. the ?lm 11. Cellulose acetate ?lms having cellulose substantially no pile ?bres remain ?rmly adhered acetate pile ?bres lying in di?’erent directions to the ?lm. ?rmly adhered thereto, and presenting a mother 4- Process for the production of mother-of 55 of-pearl e?ect. pearl e?'ects on transparent arti?cial ?lms, which comprises causing to adhere to the ?lm the pile BRIAN EDWARD MERRIMAN MILLER.