Show TREATISE IBM ON OB TEXTILES I HOlDS VAlUABlE E INFORMATION A bulletin ha hu has recently been Issued b by P I the tho Utah A Agricultural r college oil on pure textiles textiles tex tex- tiles and clothing Il It is Js a preliminary study of oC wool silk Bilk and linen fabrics on or I the Utah market and is b by the faculty of ot the the home economics department The Tho article fiche tells how ho artificial silk silk it la Is lamade I Imade made roade b by treating cotton with nitric acid I then dissolving It Jt In alcohol and ether forcing through capillary tub tubes s. s hardenIng harden harden- ing lag in water BO so o producing a resultant t fiber In which the physical physic characteristics character Is tics tica of ot th the cotton have hao disappeared and the Iho properties of oC the silk so 80 closely Imitated Imi Imi- that thai only b by chemical can the difference be detect This artificial artificial cial silk Uk lacks the wearing qualities of ot the tho real silk and can be made cheaper but It sells for pure silk with no no tion lion Various ms of oC adulterating pure silk are also employed according t to this bulletin Samples of silk have hale been In In- In gated in this la bora laboratory to it SilS Sil'S says that contained little so silk and BO so much mineral matter that It ft was found Im Impossible o to set act et ire fire to the cloth And after such samples have been subjected to the tho Intense heat 1 of or the time electric oven o the tho mineral residue maintained In the original form forum and size Abo closely resembled a pl piece ce of ot Zinc tIne wire gauze Silk M ts soft and pliable but when loaded with inor Inor- ganic salts salty It cracks or 01 splits c. easily 8 II and all who have hate to deal with silks have hn I had experience with Just such fabrics Wool i Is common commonly mixed with cot cot- ton Very often otten the tho mixture la Is made b by spinning together a cotton and a wool fiber so that the cloth woven from such lIuch yarn arn will m contain wool In every e thread Tho The burning test usually employed would be useless In such auch cases for tor every thread In both warp and weft wert would contain enough wool to give the characteristic odor In Iii other instances cotton yarn urn Is used for the tho warp and wool is employed em em- as filling Such weaves eo es are usually sold Bold as mixed goods and wool no not as pure I Cotton In Is the on only 1 fiber r common commonly in the time adulteration of or linen fabrics and starch Is the weighting mate mato- z-lal z most tr frequently employed ChemIcal Chem Chem- Ical as aa well as mechanical and micro micro- methods are arc In detecting de- de adulterants In In textiles textile In the tho booklet is 18 an Illustration shown show show- lag n a sample ot of cloth which was sold Bold for or all wool woot Th The was thirty six Inches wide weighed 15 ounces a yard ard and retailed retailed re- re tailed for for tor a yard One halt ot of the sample shows the tho materIal to the not sub BUb- action ot of an any chemIcal reagent reagent re- re agent It Is Intact The lower halt was si-as Immersed for tor fifteen minutes In hot pot pot- I hydroxide The war warp im In this sam earn earn- pit pIe was made J up tip entirely ot of cotton and remained The weft wert ool and In the portion Was treat treated hatI die die- solved d out lea leasing In nothing but strings From rom the foregoing discussion on time the article It g goes 8 must not be assumed that all textiles are unreliable Many samples sold for all wool though In man many wool samples amples are arc actually the hi ua fibers alt all are arc Short and coarse and this the loose that the material would weave so 80 bargain at any price The retail be a poor Is not to be blamed for tor milking making the claims for his hili goods as aa were same Mme him b by time the manufacturer The marie made to l i not able ablo to consumer Protect lag Ins the Fabrics himself b by t test test- lItIns lIt lIt- before a law bUYing But with compelling accurate labeling ever every bolt of cloth ot of that leaves u and f a 1 chemists the mill on 01 the alert teet fraudulent to detect de- de labeling the 1 People eople would soon have o reliable I U |