CH100708A - Process for making cellulose acetate bodies suitable for dyeing. - Google Patents

Process for making cellulose acetate bodies suitable for dyeing.

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Publication number
CH100708A
CH100708A CH100708DA CH100708A CH 100708 A CH100708 A CH 100708A CH 100708D A CH100708D A CH 100708DA CH 100708 A CH100708 A CH 100708A
Authority
CH
Switzerland
Prior art keywords
cellulose acetate
dyeing
making cellulose
bodies suitable
bodies
Prior art date
Application number
Other languages
French (fr)
Inventor
Societe Pour La Fab Rhodiaseta
Original Assignee
Rhodiaseta
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodiaseta filed Critical Rhodiaseta
Publication of CH100708A publication Critical patent/CH100708A/en

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Description

  

  Procédé pour rendre aptes<B>à</B> la teinture des corps     en    acétate de cellulose.    L'acétate de cellulose n'étant pas per  méable<B>à</B> l'eau, il est difficile de teindre     par     les procédés ordinaires les pellicules ou au  tres articles<B>à</B> base d'acétate; les teintures       (11.1,011    obtient sont claires et mal unies.  



  Or, il a été constaté qu'on peut rendre les  objets en acétate de cellulose aptes<B>à</B> recevoir       la    teinture en les traitant par un bain ren  fermant du phosphate     trisodique.       <I>Exemple:</I>    Une pellicule en acétate de cellulose est  pendant     #\J,    d'heure dans 20 litres     dun     bain renfermant du phosphate     trisodique    ob  tenu     cri    mélangeant par litre<B>25</B>     gr    de phos  phate de soude cristallisé, (phosphate     diso-          dique)

      et<B>à</B> cm' de soude caustique<B>à 36 '</B>       Bauni(l.    On maintient ce bain entre<B>60</B> et  <B>70 '</B> pendant toute la durée de l'opération.  



       La    pellicule est ensuite bien rincée et     sé-          cliée;    la perte de poids est de<B>6</B> %.    Le procédé qui fait l'objet de la présente  invention peut du reste être combiné avec la  teinture elle-même, de façon que tout se passe  dans un bain unique.  



  L'acétate traité au phosphate     trisodique     peut, d'autre     Êart,    être     mordancé    au tannin  et<B>à</B> l'émétique avant qu'on applique le bain  de teinture.



  Process for making <B> </B> suitable for dyeing cellulose acetate bodies. Since cellulose acetate is not permeable <B> to </B> water, it is difficult to dye films or other <B> </B> acetate-based articles by ordinary methods. ; the dyes (11,111 obtained are clear and poorly united.



  Now, it has been observed that objects made of cellulose acetate can be made suitable <B> to </B> receive the dye by treating them with a bath containing trisodium phosphate. <I> Example: </I> A cellulose acetate film is for # \ J, hour in 20 liters of a bath containing trisodium phosphate obtained cry mixing per liter <B> 25 </B> gr of phos crystallized sodium phate, (disodium phosphate)

      and <B> to </B> cm 'of caustic soda <B> to 36' </B> Bauni (l. This bath is maintained between <B> 60 </B> and <B> 70 '</ B > throughout the operation.



       The film is then rinsed well and separated; the weight loss is <B> 6 </B>%. The process which is the object of the present invention can moreover be combined with the dyeing itself, so that everything takes place in a single bath.



  Acetate treated with trisodium phosphate may, in the other hand, be etched with tannin and <B> with </B> emetic before applying the dye bath.

 

Claims (1)

RM#NDICATION: Procédé pour rendre aptes<B>à</B> la teinture des corps en acétate de cellulose, caractérisé en ce que l'on traite ces corps avec des solu tions de phosphate trisodique. (L'invention, appliquée au traitement de fibres textiles, n'est brevetée qu'en tant qu'elle ne se rap porte pas<B>à</B> l'industrie textile.) RM # NDICATION: Process for making suitable <B> for </B> the dyeing of cellulose acetate bodies, characterized in that these bodies are treated with solutions of trisodium phosphate. (The invention, applied to the treatment of textile fibers, is only patented in so far as it does not relate <B> to </B> the textile industry.)
CH100708D 1921-07-27 1922-05-05 Process for making cellulose acetate bodies suitable for dyeing. CH100708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR100708X 1921-07-27

Publications (1)

Publication Number Publication Date
CH100708A true CH100708A (en) 1923-08-16

Family

ID=8871646

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100708D CH100708A (en) 1921-07-27 1922-05-05 Process for making cellulose acetate bodies suitable for dyeing.

Country Status (1)

Country Link
CH (1) CH100708A (en)

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