| Show silkworm ilk worm has business rival 1 chemical experts have found way to make serviceable betas from spruce pulp new haven A warning to the silk lioom that certain chemical corn com pounds which are ills lils chief bu business rials are inclined to combine against him anil and a hint for him to study their modern effi efficient clent methods was given by V 0 Miti scherling of baltimore in lile his address on cellulose silk before the american chemical coclet wille the silkworm turns out a high quality product and Is justified in a certain pride of skill mr air alit scherling ch erling said ibis stubborn refusal to heed the entreaties of the sales department part ment to speed up la Is playing havoc alth ft ath his market the modern woman cannot be bothered to wait for him and so the spruce tree and the cot ton plant are gobbling up the big or dera these producers are willing milling to stand for the he introduction of selen methods for instance cellulose which Is the technical name for spruce pulp and cotton lin finters Is 13 very reasonable the most recent discovery in arti artl tidal all silk manufacture Is that bellu lose loe and acetic acid combine under the proper chemical circumstances to make mak a very ry good ellk OIL one of the most favored devices of the chemist ie is the use of ft hat la Is known ns as R the ca catal Bt Is the eitl elli clency cleacy man of chemistry in the case ease of the cellulose acetate silks the pulp or cotton III and acetic beetle acid naturally combine veri slowly but the presence pre Fence of sulphuric sulp hurle neld orai orfa zinc salt still speeds up the reaction to a great pace the sulphuric acid arid or zinc salt Is 1 used USK Is the catalyst it does doe not become a part of the product but it stirs the bellu lose and acetic add to great activity doctor said that the cellulose acetate formed after the catalyst has introduced the beres sary punch I 1 into the process Is then dissolved in ill acetic beetle acid or some other solvent and discharged through a lie containing exceedingly fine holes inte water and immediately becomes a fine thread silk worm falls fails behind there are three other processes of making cellulose silk and last year they v ft ere made to produce 3 per cent mare more taffetas taff crepe de do chine achl ne stockings etc than all the silkworms in the world the total was uns pounds while doctor said that cellulose silk will ill never entirely replace genuine silk the textile mills are sh otting less aud bud less patience with the laziness and indifference of the silkworm and be had better watch his steps or he will vi ill soon be los ins ing a nice lot of hie his business to su perlor american ingenuity and res ress |
