US815671A - Process of producing multicolored dye effects in woolen fabrics, &c. - Google Patents

Description

| UN TE STATES MVAXBECKE, oFfnooHsr PROCESS or PRODUClNG MULTICOLORED ovr'rrrtcrs m woor'ru emos. to.

is apspeciiication.

wool is treated with tanning substancesand metallicsalts, itsproperties when dyed are -totally changed. Hit em i-ioflonger be dyed with dyestuffs if fual'l"" employed in dye ing, as it has, acquired .tl e; 'p roperty of combining witlf basic dyestuffs. I have found that these re elties ma be a died in a- P ll manifold and useful manner to'obtain biand multicolored effects with woolen piece goods and yarns.

.lf wool or similar animal fibers, treated with tanning substances and metallic salts, are spun or' woven together with\m'dinary wool, goods are obtainmlwhich maybe dyed in melange or weaving ellects of a totally different aspect, as the several parts .of these goods are of a different behavior toward the dyestuffs. The Wool treated with tanning substances and metallic salts readily absorbs basic dyestuffs, but does not combine with the ordinary dyestuffs for W001, especially with acid dyestuffs, wlnch,'as is known, are

much used in wool dyeing. The ordinary -wool, howevef, worked up in yarns and piece goods does not absorbthe basic dyestuffs in the presence of treatedwool, but readil y com-- bincs with acid, chrome developing, and

mordant dyestuffs.

In finally dyeing three methods may be employed lirst, :gnly 'the treated wool is.

dyed with basic dyestuffs, whereas the untreated wool remains undyed; second, only the untreated woolis dyed with acid or chrome-developing dyestuffs and the treated wool remains undyed third, the treated wool is dyed with basic dyestuffs, the untreated wool, however,with acid or chrome-developing dyestuffs. Besides, wool dyed with fast dyestuffs may also be treated with tanning sub-v stances and metallic salts, to be then worked with ordinary wool into yarns and piece goods. I

dyestuffs, only the ordinary wool absorbs If these goods are dyed with acid the dyestuffs and not the wool previously dyed and treated with tanning substances and metallic salts. In this manner the most varied multicolored effects maybe obtained.

' Specification-of Letters Patent.

' Application filed February 14, 1902. Serial No. 9 5065;

(PAT NT orr ion,

ON-TI-I 112M Al e ERM ANY.

J PatentedMareh 20, 1906."

WVool may be worked up in any state of condition, as loose material, slubbings, yarn, and thread. On finally dyeing melange, thread, warp, weft effects or combinations thereof are obtained, ac'cordingto the material employed. Besides, the tanning preparation maybe also applied-on slubbings,'yarns, and pieces by way of printing. On finally dyein these goods the effects come outas bi or mu ticolored printing designs.

The process may profitably be. applied to all branches of the wool industr in the manufacture of carded yarn and s ubbings, felts, hats, ladies and gcntlemens clothso'f' all kinds. p

()n finally dyeingthe goods the effects are ing directions: The dyeing of the treated wool is done with basic dyestuffs, preferably about ten per cent. of acetic acid fifty per cent. The best results are obtained by using amnes, oxazines, and thiazmes, also aurannn the y also dye the untreated wool. The more the reaction of the dyesbath is sourthe purer are theeifccts. The dyeing of the untreated wool, however, occurs in a bath made up with Glaubers salt and acetic. acid at to 'centigrade. Here the effects come-out-more prominently if the bath is not too sour, a con-. sidcrable quantity of Glauber.s salt being 85 ccntigrade. sidered most of the acid and azo dyestuffs one sulfo group, especially in the presence of strong basicgroups, are not advantageous for obtaining strong color contrasts, as they also dye proportionately the treated wool. To obtain specially pure effects ,and contf'asts of colors, it is advisable to use the highersulfonat'ed. acid and azo dyestuffs, as they only slightly dye the treated wool. The presence beauty of the effects. 1 Having now described my invention, 'what I claim is 1. Theprocess herein described of produc- Besides sheeps wool other hair of animalsbe finally dyed in different ways, as described.

rendered prominent by observing the followat boilingpoint, in a bath acidified with and. acridin-red, whereas the t' ri 'ihenyln'ie thanc dyes'tufls produce lessgood elleets, as-

added and the temperature not sur assing' Of the dyestulls to 0 con-- ma be em )lo ed but those containin 0111 n b of strong acids in the batliiufluences the in multicolored eflects in woolen and mixed goods or fabrics with acid dyestuffs, substanfal rics, which consists in treating animal tially asset forth.

air with a tanning substance and a metallic F 3. Woolen goods or woven fabrics having salt, then working it with untreated fiber into l multicolored dye efiects, and consisting of a 20 5 s un goods or woven fabrics, and then dyeing, mixture of treated woolen fibers, rendered the goods thus obtained with ordinary wool i dye-resistant by tanning substances and medyestufis in an acidbath, substantially as set tallic salts, and of untreated fibers, said treatforth. cd and untreated fibers being dyed in dillcr- 2. The herein-described process of producl ent colors, substantially as set forth. 25 1o in multicolored effects in woolen and mixed 5 In testimonyt hat I claim the foregoing as fa rics, which consists in dyein animal hair my invention I have signed my name in pres- With woolen dyestuffs fast to milling and acid, ence of two subscribing witnesses. then treating with a tanning substance and MAX BECKE.

metallic' salt so as to render it dye-resistant, W itnesses: r5 WOIlilIlg it then with untreated fiber into spun ALFRED BRISBOIS, goods or woven fabrics, and then dyeing said HLINRIQH HAHN.