US1694466A

US1694466A - Process of obtaining metallic effects on fabrics containing organic derivatives of cellulose

Info

Publication number: US1694466A
Application number: US100179A
Authority: US
Inventors: Clavel Rene
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-04-06
Filing date: 1926-04-06
Publication date: 1928-12-11
Anticipated expiration: 1945-12-11

Description

Patented Dec. 11, 1928.-

UNITED STATES RENE CLAVEL, F BASEL-AUGST, SWITZERLAND.

rnoonss or OBTAINING-METALLIC 'nrrncrs 0N FABRICS CONTAINING oReaNm DERIVATIVES or CELLULOSE.

No Drawing.

The object of this invention is to provide Another object of the invention is to obtain fabrics which very closely resemble old Venetian metallic tapestries ofthe Rena-issance period. Another object of theinvention is to provide a process for treating fabrics of or containing organic derivatives of cellulose with mineral powders or dye stuff powders to obtain variegated effects on the fabric.

There are several different methods for ob-' taining metallic silver and ,gold effects on cloth known today. Of these processes the one most often employed is one wherein a paste of gum or gums, such as are commonly employed in printing processes, and a metallic powder is printed on the fabric ahd then gxed by a subsequent steaming operation.

f if desired the fine metallic powder, in

' paste form, is spread on thefabric and the latter is then subjected to a calendering operation. The above steaming or calender- 2 ing operations serve to fix the metallic powder in the fabric. It hasnow been discovered by the ap-phcant that fabrics containing organic derivatives of cellulose can be treated so as to obtain unusual metallic effects. In the old processes no change in the structure of the fabric is brought-about whereas in the applicants process the structure of the fabric is materially altered and novel and unexpected effects are obtained as a result of this change.

pletely, depending on the conditions of treat-- ment, the organic derivatives of cellulose and enables the metallic or mineral powder or other material to be fixed completely or permanently bythe subsequent drying process.

The fabric after the above treatment can be dyed and/or calendered as desired.

The followin examples illustrate two processes or met ods of carrying out my invention on fabric made of a heavy crepe of 56 cotton and cellulose acetate.

Application filed April 6,

192s. Serial No. 100,179.

Example 1.500 grams of gum arabic are dissolved in a litre of water and to this is added 5 litres of acetone. 'To this mixture, which is well stirred,-so as to form an emulsion, 200 grams of powdered gold substitute is added. The mixture is Well stirred until the powdered metal .(or other material which may be added) is entirely and upiformly distributed in' the resulting paste. This paste is then uniformly applied to the fabric by means of a vertical doctor blade and the fabric is then very rapidly dried. This drymg serves to fi-x'the metallic powder in the fabric. After the fabric is completely dried it can be' dyed, preferably at high temperatures (80 to 100 C.) with a mixture of cotton and cellulose acetate dyestuffs or with cotton dyestuffs alone or even with cellulose acetate dyestufls alone. The fabric at this stage of the process presents a uniform solid'and unbroken metallic surface due tothe: fixing of the metallic powdertherein.

, The fabric, after the above treatment, is then washed and put on a stretching frame and greatly stretched. This stretching causes some of the partiallyor completely dissolved cellulose acetate threads to break and that portion of fabric which has been'pr-eviously dyed shows itself in the dyed. shade. That is tosay the dyed portions of the fabric appearv as a background to the metallic surface, which surface as a result of the stretching operation is no longer a continuous solid mass but is "broken up to a considerable d egree; -After the stretchingtreatment, as above set out, the

fabric may be calendered if desired in order to give it a smoother appearance andfeel.

Example 2.--500 grams of Sericose are dis solved in a mixture of 6 litres of acetone, 1 litres of ethyl alcohol and 2% litres of benzol. To this solution is added 300 grams of powdered gold or silver substitute and the mi xture wellstirredunti-l the powdered metal is entirely and evenly distributedin the re-- sulting paste. The fabric is then treated with the paste as described in Example No. 1. The above examples of the process canbe or mixture of powders, suitable for obtainingthe effects desired-thusfor example powdered-bronze and powdered aluminum can be used where one Wishes both gold and silver effects on the same fabric. Also the fabric treated may contain fibres of more than one derivative of cellulose that is fibres of both modified by substituting any other powder-,

esters and ethersof cellulose. Nor is a mixed fabric of cotton and an organic derivative of cellulose the only'class of mixed fabric which can be treated by the applicants process. Mixed fabrics'of wool and organic'derivatives of cellulose or of real silk and r-- garlic derivatives of cellulose or of rayon and organic derivatives of cellulose, etc. can

I it

. cants process to a cellulose acetate.-

also be treated by this process toobtain the peculiar and characteristic metallic effects resulting from the-application of the 'appli' mixed fabric of cotton and Instead of metallic powders, mineral powders; such as ultra-marine, 11'011 oxide, etc.

"or insoluble dyestuff powders can be mixed y in the paste. Also different solvents of high boiling points and softening agents for the i also enables one to obtain fabrics. of varying degrees of softness. ,As examples of suchhigh boiling point solvents or softeners, the

particular cellulose derivatives in the fabric roan be utilized. This makes it possible to obtain different effects and appearanceson the fabric on which the powders are fixed and following are mentionedLTurke y red oil,

. tria'cetin, tricresylphosphate and mono-oil.

, The above examples are merely illustrative of the ap licants' invention and his inven-.

f "to obtain metallic orsiinilar effects thereon which comprises applying to the surface of i 7 ing thepaste on the fabric a s 2. A process for treating'fabricscontaining the fabrica paste containing a gum, a solvent for the-organicv derivatives in the fabric and aflpowder suitable for obtaining the desired e e and fix-v cts to forma thin breakable film,

"an organic derivative of cellulose in order to obtain: metallic r' similar effects; thereon which\ comprises applying to the surface of the fabric a paste containing a'gum,-a solvent for the organic derivativeinthe fabricand a mineral powder suitable for obtaining the desired effects to form a thin'breakable'film'-{ '10. A'processfor treatingfabrics contain-.

A and fixing the pasteon the'fabric. v

3. "A process for treating fabrics contain; mg an organic derivative of cellulose in o'r' der to obtain metallic or similar effects there'-' on which comprises supplying to the surface of the fabric a paste containing a gum, a solvent for-the organic derivative in the. fabric and a metallic 'wder to form'a thinbreak-"cfor obtainingthe'desired'eifects and, drying ablefilm and xing the paste'on the fabric.

4. A process for treating" fabrics containing an organic derivative of cellulose inorder to obtain metallic or similar effects thereon which comprises applying to the surface of the fabric a paste contamin a um; a solvent for the organic derivative m-t e fabric and powdered gold to'form a thin breakable film-- and fixing the paste on the fabric,

5. A process for treating fabrics contain ing an organic ester ofcellulose in order to 'obtain metallic or similar effects thereon which comprises applying to the surface of a the fabric a paste containing a gum, a solvent for the organic ester and a powdersuitable'" for obtaining desired effects to form a thin. 7

breakable film and fixing the paste on the fabric.

6. A process for treating fabrics containing cellulose acetate in order to obtain metalgl lie or similar effects thereon which comprises applying to the surface of the fabric a paste containing a gum, a solvent for the cellulose acetate and a mineral powder suitable for obtainin desiredefiects to form a thin break- I able fi m and fixing the paste on the fabric.

7 A process for treating fabrics containing an organic derivative of'cellulose yarn in order to obtain metallic or slmilar effects thereon which comprises applying to the surface of the fabric a paste containin gum arabic and acetone and a powder suitable for obtainingthe desired effectsto form a thin breakablefilmand fixing the-paste-on the fabrig.

8.. A ing an organic derivative of. cellulose and yarnofother fibre in order to obtain metallic vorsimilar effects thereon which comprises applying to the surface of the fabrica paste. containing a gum, a solvent for' the organic derivative inv the fabric and a powder suitable for obtaining the desired effects and dryprocess for'treating fabrics contain-1 ing the fabricv to form a thin'breakable film, thereby fixing thepaste. on thefabrica,

. '9. A .process for treating fabrics c'ontaining an organic derivative of cellulose and yarn of other fibre in order to obtain metallie or similar effects thereon which comprises applying to the surface of the fabric a paste containing a gum, a solv'entfor the organic derivativein the fabric and a powder suitable forobtaining the desired effects-and, drying the fabric to form athin breakable.

filmy thereby'lfixing the paste on! the fabric and then dyeing the fabric witlrthe powder] v I v v fixed thereon.

plying to the surface of the fabric a pasteconrivative in the fabric and a powder suitable the fabric to form a thin breakable film, therelfy fixing the paste on the fabric and then dyein at elevated temperatures, the fabric witht epowder fixed thereon. 1 '11; A process for treating. fabrics contain-:

ing an organic derivative'of cellulose in or der toobtain metallic or similar efiectsthereon,'which comprises applying to the surface of the fabric a paste containing a gum, a solvent for the organic derivative in the fabric and a powder suitable for obtaining the desired effects, quickly drying the fabric thereby fixing the paste on the fabric, and subsequently stretching the fabric, causing some of the partially or completely dissolved threads to break.

12. A process for treating fabrics containing an organic derivative of cellulose in order to obtain metallic or similar effects thereon which comprises applying to the surface of the fabric a paste containing a gum, a solvent for the organic derivative in the fabric and a powder suitable for obtaining the desired effects and, quickly dryin the fabric, there by fixing the paste on the dabric, then dyeing the fabric with the powder fixed thereon and subsequently stretching the fabric, causing some of the partially or completely dissolved threads to break, thus exposing portions of the dyed fabric.

13. A process for treating fabrics containing an organic derivative of cellulose in order to obtain metallic or similar effects thereon which comprises applying to the surface of the fabric a paste containing a gum, a solvent for the organic derivative in the fabric and a powder suitable for obtaining the desired effects, and quickly drying the fabric,thereby fixing the paste on the fabric, then dyeing the fabric with the powder fixed thereon, subsequently stretching the fabric causing some of the partially or completely dissolved threads to break, thus exposing portions of the dyed'fabric and iinally calendering the stretched fabric.

14. A process for treating a mixed fabric of cotton and cellulose acetate yarns in order to obtain metallic or similar effects thereon which comprises applying to the fabric a paste containing a gum, a solvent for the celluloseacetate and a powder suitable for obtaining the desired effects to form athin film and fixing the paste onthe fabric.

15. A process for treating a mixed fabric of cotton and cellulose acetate yarns in order to obtain metallic or similar effects thereon which comprises applying to the fabric a paste containing a gum, a solvent for the cellulose acetate and powdered gold to form a thin film and fixing the paste on the fabric.

16. A process, for treating a mixed fabric of cotton and cellulose acetate yarns in order to obtain metallic or similar effects thereon which comprises applying to the surface of the fabric a paste containing a gum, a solvent for the cellulose acetate and a mineral powder suitable for obtaining the desired effect paste on the fabric to form a thin film, and

then dyeing the fabric, with the powder fixed thereon, at elevated temperatures.

18. A process for treating a mixed fabric of cotton and an organic ester of cellulose in order to obtain metallic or similar effects thereon. which comprises applying to the surface of the fabric, a paste containing agum, a solvent for the cellulose ester, and a powder suitable for obtaining the desired effect, quickly drying the fabric, thereby fixing the paste on the fabric, dyeing the fabric with the powder fixed thereon and subsequently stretching the fabric, causing some of the partially or completely dissolved threads to break thus exposing portion of the dyed fabric.

19. A mixed fabric containing an organic derivative of cellulose having a metallic powder fixed therein in the form of a thin breakable film and presenting a metallic efiect.

20. A mixed fabric of cotton and an organic derivative of cellulose having a metallic powder fixed therein in the form of a thin breakable film and presenting a metallic effect.

21.A mixed fabric of cotton and cellulose acetate having a metallic powder fixed therein and presenting a metallic effect in the form of a broken thin film similar to old Venetian metallic tapestry.

22. Process of treating a fabric, which fabric has a thin breakable film of metallic powder fixed thereon comprising dyeing the said fabric. V

23. Process of treating a fabric which fabric has a thin breakable film of metallic powder fixed thereon comprising stretching the fabric to cause part of the metallic film to break. v

In testimony whereof, I have hereunto subscribed my name.

RENE CLAVEL.