Document 3e1r2k94qwaQrQxrqoeqk4pda

AR226-2855 HASKELL LABORATORY RAYMOND L. HACKERT TCTTTT FIBERS DEPARTMENT SEAFORD PLANT On March 31, 1977, an industri Seaford Plant fo r a j t r i a l application o: e at the Ohaarved Process The ste p s o f the p ro cess w ere: An aqueous dispersion o f t O B B I j L * pumped from an open drum to application trayiV of sixteen applicator units (eight on each sid e) o f Spinning Machine Number 2k. tds passed through the applicator units where the r&3 applied to the moving threads by direct contact [th fl-o- ibing applicator wheel The nylon then p assed t hrough j te m p o rarily in s t a lle d f in is h overlay applicator wberelflBHSfas applied by spray. rbe nylon was then piddled in to p id d lin g c a n s. The cans were tran sp orted to th e feed area se rv in g Draw Machine Number h. The nylon from ten p id d lin g cans was manually threaded through rin g gu id es le ad in g to the Draw Machine. There the stran d s were t i e d to a le a d e r in sid e the Draw Machine Chamber. The Draw ne was sta rte d and th e nylon was drawn by p a ssin g over draw r o l l e r s kept a t 60 - 5 C. The nylon emerged from the Draw M achine^nndpafised through a crimping machine where a 1# so lu tio n &S ^ overlay. This solution is e sse n tia lly Squeezed o ff during crimping and the drawn rope i s p id d led in to a c o lle c tin g box. During the f i n a l c o lle c tin g , a trem per descends a t frequent in te rv a ls to compress the crimped rope so th a t an acceptable amount o f the nylon can be c o lle c te d in each box. omnamr no*contain TSCA CBI nhserved Exposures or Potential Exposures Odors of acetic acid were detected a t: ^ the open drum containing t b e ^ m H ^ the applicator boxes of the spinning machine when i i S a S T . . r e op, for clcming i f tie operator . t ie piddling ran e t t c Q U B n e applied to the nplon An aerosol and outlet o>; if l|^ esnn< a so w as f th j e la B ig R l^y v isib le pip! plicator ou a tsid e the inlet Manual contact with the rope occurred w "8' drawbox threading, crimper threading and fin a l piddling/ o S e S i o i r Theoperator ho doffed the r a * * * / piddling can wore a leather glove on the hand used to gr _ the rone The operator who was cleaning the applicator bxe o f thePspinningMachine wore ru b b er gloves on both hands. The operators who handled the rope at the other locations were inconsistent in their glove usage. gopnmmendations The following recommendations are made, Most of these were made orally at the time of the survey. . Air sampling for ac etic acid should be done near t b -- * ^ d S i i ^ t the applicator b o a . while the how door. are open. < Air sampling for t o t a l particulate should be done at the point o f h ig h estaerp so l v is ib ilit y within one foot of each end o f t h d J j|^ a p p lie a t o r box. * iiSSLfS'iSS fin ish , and^the tran sfer o f some o f the fin ish suggest that leather gloves continue to be worn to minimize oAhersnee of other m aterials to the hands. Conclusions Except fo r the items discussed, the operation appeared well controlled iith no problems. -------- , -- T-d----------- -- )uncan T . L e f f e r t s in dustrial Hygienist Approved: --- ------ John Foderaro, M.D. Manager - F ie ld S e rv ic e s H i 3-tTpLg/kpld-np Laboratory nReport #1 520a 3, -7777 Date iBBued: April 19 1977 Comoany Sanitized. Does no! contain TSCA CBf