CH137225A

CH137225A - Process for printing on a carrier sheet, by means of printing machines, inscriptions and designs intended to be transferred onto absorbent surfaces.

Info

Publication number: CH137225A
Authority: CH
Inventors: Muzzioli Gaetano
Original assignee: Muzzioli Gaetano
Priority date: 1928-05-22
Filing date: 1928-10-13
Publication date: 1929-12-31

Description

  

  Procédé pour l'impression sur une feuille de support, au     moyen    de     machines        d'impri.          merie,    d'inscriptions et dessins destinés à être reportés sur des surfaces absorbantes.

      L'objet de la présents invention est un  procédé pour l'impression sur une feuille de  support, au moyen de     machines    .d'imprime  rie, d'inscriptions et .dessins destinés à être       reportés    sur des surfaces     absorbantes.    Ce  procédé est     caractérisé    en ce     qu'on.    effectue  l'impression à l'aide     d'une    encre, respective  ment d'au moins une     couleur,    d'imprimerie,  à laquelle, respectivement     auxquelles,    on a  ajouté une composition comprenant au moins  -de -l'essence de térébenthine et de la .cire  vierge, et telle qu'elle rende cette encre,

    respectivement     cette    couleur, apte à être re  portée en tout temps, à chaud, de la feuille  de support humectée sur une     surface    absor  bante, cette impression étant     effectuée    sur une  feuille de support     enduite    préalablement  d'une.     collé    comprenant au moins     ôe    la     dex-          trine        de        maïs        blanc,        de     de riz et  ,de la glycérine, et telle     qu'elle    empêche la.

    feuille de support d'absorber l'encre, respec  tivement la couleur qu'on y     imprime    et    qu'elle en permette le report sur une surface       absorbante.     



  Voici, à titre d'exemple, une manière de  mettre en     aeuvre    le procédé selon l'inven  tion: _  1. On enduit la face .d'une feuille     @d'e    sup  port, constituée par une feuille de papier à  base de cellulose et très lisse (par exemple  du papier d'emballage du poids .d'environ  60 gr par feuille -du format 75     X    100     cru),     avec la colle spéciale mentionnée dans l'in  troduction et qui peut être obtenue de la  manière suivante:

    a) On verse dans 18 ,litres     ..d'eau    bouil  lante     d'abord    12 kilos environ de     ,dextrine    de  mais blanc et ensuite 2 kilos environ d'ami  don de riz en poudre et on .laisse bouillir le  tout pendant environ 5 minutes. Dès qu'on  retire le mélange du feu, on     .le    tamise pour  en éliminer les grumeaux éventuels.  



  b) On verse dans deux litres d'eau froide  environ 400 gr ,de carbonate de sodium et      400 gr de colophane française très pure en  poudre     et-    on fait bouillir le tout en mélan  geant incessamment, jusqu'à la complète liqué  faction de la colophane. Ensuite on verse le  tout .dans la     composition    indiquée sous a.  



  c) On introduit dans un litre d'eau envi  ron 200 gr     d''albumine        d'oeuf    quelques heu  res avant d'effectuer les .autres opérations,  de manière que l'albumine soit tout     è,    fait  liquéfiée à l'instant où l'on doit s'en servir.  On verse cette solution dans la     :composition          indiquée    sous a immédiatement (soit approxi  mativement en même temps:) après y avoir  versé la     préparation    indiquée sous b.  



  d) En même temps que la     péparation        r.     on verse dans la     composition    indiquée sous a  environ 200 gr de fleur  &  soufre et 400 gr  de gomme arabique et ensuite 2 kilos     -de    gly  cérine blonde à 2-8       Bé.     



  La colle ainsi obtenue est tamisée, con  venablement trois fois, pour en obtenir un  liquide parfait. Ensuite :on en enduit le pa  pier à imprimer, soit à la main, soit à l'aide  d'une machine.  



  2. On ajoutera à l'encre ou à. la.     o11        ,aux          différentes    couleurs d'imprimerie dont on se  servira pour     imprimer    la, feuille     @de        papier,     la     :composition    également indiquée -dans l'in  troduction.

   Cette adjonction se fait pour  rendre les encres ou couleurs     employées    ordi  nairement dans les machines     d'imprimerie     ou de lithographie aptes à être maintenues,  après impression sur la feuille :de support  par l'une -de ces machines, dans un état tel  qu'elle     puisse    en tout temps (par exemple  plusieurs     années    après     .fimpression)    être re  portées; sous     l'action    d'une pression; sur une  surface absorbante telle que du bois, du       tissu,    etc.  



       Cette    composition peut être obtenue dé la       manière    suivante:  On     glace    dans un récipient environ 5 li  tres d'essence de térébenthine     française,    1 kg  et demi     environ    de cire vierge très pure,  250 gr de stéarine (ou préférablement de       paraffine)    et 2     kilos    de     colophane    française  en poudre; on chauffe le tout à bain-marie  jusqu'à ce que toutes les substances soient com-         plètement_    dissoutes. Enfin on passe la     com-          position,        au    tamis.  



  La préparation ainsi obtenue doit être  mélangée avec les     encres    ou     couleurs    d'impri  merie     dans    le rapport .d'environ $00 gr par       chaque        :kilo    :d'encre ou couleur; les -encres  doivent être de la meilleure qualité et l'im  pression doit être très grasse.  



  Lorsque les inscriptions et dessins ont  été imprimés, on saupoudre immédiatement  les- feuilles avec de la colophane     française     très pure réduite en poudre très fine; .cette  opération pourra être effectuée soit à la  main, soit mécaniquement....  



  La préparation préliminaire     @d    e la feuille  de support par le traitement au :moyen de la  :colle     spéciale    mentionnée a pour .but     @d'em-          pêcher    les encres et     couleurs    d'être  < absorbées  complètement par la feuille de support.

   Dans  l'opération de transport à l'état chaud. et  humide, la colle a en outre la fonction     im-          portauté    de guider les couleurs ou encres       (devennues    très     fluides-dans    le traitement .à  chaud) pendant la période de temps très       courte    d'ans laquelle le     transport    s'effectue,       @de    sorte que ces encres. ou couleurs ne  peuvent se répandre et sont incorporées dans  la surface absorbante en formant des lignes  <B>-de</B> .démarcation très nettes et précises.  



  La     composition    que l'on ajoute :aux en  cres ou couleurs a la fonction de :maintenir  à froid les couleurs dans la     position        relative     voulue pour la formation du dessin et de se  ,dissoudre avec une rapidité extrême (en pra  tique     en,    peu de secondes) dans l'opération de       transport    ù chaud et sous pression de  manière à     permettre    aux     couleurs    de     s'incor-          porer        :dans    :la surface     absorbante,    guidées,  comme indiqué ci-dessus, par la     colle.     



  Une autre fonction     importante    de cette  composition est celle de rendre -les encres et  les couleurs résistantes.  



  Le transport est     ba.s@'e    sur l'absorption  des surfaces à recouvrir, lesquelles     doivent     partant posséder des propriétés absorbantes  appropriées, par exemple     lêtre    constituées  par du bois ou un tissu.     4n    fait le     transport     en plaçant la feuille de papier imprimée sur      la surface en     question,    en     recouvrant    la  feuille avec une toile mouillée, ou en hu  mectant la feuille et     ensuite    en exerçant sur  la même une pression accompagnée par un  réchauffement.  



       Dans    le cas de tissus     fins,        comme    soie,  toile blanche, etc., la pression d'un fer à re  passer pendant trois ou quatre     secondes    sera  suffisante, tandis que pour toutes les autres  matières, telles que le     bois,    la toile à, em  baller,     etc.,,    il sera nécessaire d'employer une  pression mécanique qui devra pourtant tou  jours être de la durée de trois à quatre se  condes.



  Process for printing on a carrier sheet, using printing machines. merie, inscriptions and drawings intended to be transferred to absorbent surfaces.

      The object of the present invention is a process for printing onto a carrier sheet, by means of printing machines, inscriptions and designs intended to be transferred onto absorbent surfaces. This process is characterized in that. performs printing using an ink, respectively of at least one color, printing, to which, respectively to which, a composition has been added comprising at least -the essence of turpentine and the virgin wax, and such as it renders this ink,

    respectively this color, able to be worn at any time, hot, from the moistened support sheet on an absorbent surface, this printing being carried out on a support sheet previously coated with a. glued comprising at least ôe dextrin of white corn, rice and, glycerin, and such as to prevent the.

    support sheet to absorb the ink, respec tively the color that is printed on it and that it allows the transfer to an absorbent surface.



  Here is, by way of example, one way of carrying out the process according to the invention: 1. The face is coated with a sheet of support, consisting of a sheet of paper based on cellulose and very smooth (for example wrapping paper with a weight of about 60 gr per sheet - of the 75 X 100 raw format), with the special glue mentioned in the introduction and which can be obtained as follows :

    a) We pour into 18 liters of boiling water first about 12 kilos of white corn dextrin and then about 2 kilos of powdered rice friend and let it boil for about 5 minutes. As soon as the mixture is removed from the heat, it is sieved to remove any lumps.



  b) Pour approximately 400 g of sodium carbonate and 400 g of very pure French rosin powder into two liters of cold water and boil everything, stirring incessantly, until the liquid is completely liquid. rosin. Then the whole is poured into the composition indicated under a.



  c) Approximately 200 gr of egg albumin is introduced into a liter of water a few hours before carrying out the other operations, so that the albumin is completely liquefied at the moment when we must use it. This solution is poured into the: composition indicated under a immediately (ie approximately at the same time :) after having poured the preparation indicated under b.



  d) At the same time as the preparation r. one pours in the composition indicated under has approximately 200 gr of flower & sulfur and 400 gr of gum arabic and then 2 kilos - of gly blond cerine at 2-8 Bé.



  The glue thus obtained is sieved, suitably three times, to obtain a perfect liquid. Then: the paper to be printed is coated with it, either by hand or using a machine.



  2. Add to ink or to. the. o11, in the different printing colors which will be used to print the, sheet of paper, the: composition also indicated -in the introduction.

   This addition is made to make the inks or colors ordinarily employed in printing or lithography machines suitable for being maintained, after printing on the sheet: of the support by one of these machines, in a state such as it can at any time (for example several years after printing) be re ported; under the action of pressure; on an absorbent surface such as wood, fabric, etc.



       This composition can be obtained as follows: In a container, approximately 5 liters of French turpentine, approximately 1 kg and a half of very pure virgin wax, 250 g of stearin (or preferably paraffin) and 2 kg are iced. French rosin powder; the whole is heated in a water bath until all the substances are completely dissolved. Finally, the composition is passed through a sieve.



  The preparation thus obtained should be mixed with the printing inks or colors in the ratio of about $ 00 gr per each: kilo: of ink or color; the inks must be of the best quality and the printing must be very oily.



  When the inscriptions and designs have been printed, the leaves are immediately sprinkled with very pure French rosin reduced to a very fine powder; . this operation can be carried out either by hand or mechanically ....



  The preliminary preparation of the backing sheet by the treatment with: means of the: mentioned special glue is intended to prevent the inks and colors from being completely absorbed by the backing sheet.

   In the hot state transport operation. and wet, the glue also has the important function of guiding the colors or inks (which become very fluid in the hot treatment) during the very short period of time in which the transport takes place. so these inks. or colors cannot spread and are incorporated into the absorbent surface forming very clean and precise lines of demarcation.



  The composition that is added: to the cres or colors has the function of: keeping the colors cold in the relative position desired for the formation of the pattern and of dissolving with extreme rapidity (in practice, little seconds) in the hot and pressurized transport operation so as to allow the colors to incorporate: in: the absorbent surface, guided, as indicated above, by the glue.



  Another important function of this composition is that of rendering the inks and colors resistant.



  The transport is based on the absorption of the surfaces to be covered, which must therefore have suitable absorbent properties, for example being constituted by wood or fabric. Transport is carried out by placing the printed sheet of paper on the surface in question, covering the sheet with a wet cloth, or by moistening the sheet and then exerting pressure on the same accompanied by heating.



       In the case of fine fabrics, such as silk, white canvas, etc., the pressure of a passing iron for three or four seconds will be sufficient, while for all other materials, such as wood, canvas, em baller, etc., it will be necessary to use a mechanical pressure which must however always be of the duration of three to four seconds.

Claims

CLAIM:. A process for printing onto a carrier sheet, by means of printing machines of inscriptions and designs intended to be transferred onto absorbent surfaces.

characterized in that the printing is carried out at. the aicl'e of an ink, respectively of at least one color, of printing, to which respectively to which, a composition comprising a least of the essence of turpentine and virgin wax has been added, and such that it renders this ink, respectively this color, suitable for being transferred at any time, when hot, from the sheet of wet support on an absorbent surface, this printing,

being carried out on a support sheet coated beforehand with a glue comprising at least: white corn dextrin, rice starch and glycerin, and such as to prevent the support sheet from absorbing the 'ink, respectively' the color that is printed thereon and that it allows the re port on an absorbent surface.

SUB-CLAIMS 1. Method according to claim, characterized in that the. composition which is added to the ink, respectively to the color thereof, further comprises, stearin and -de French rosin. Process according to claim, characterized in that the composition which is added to the ink, respectively to the color, further comprises paraffin and French rosin.

; 3 A method according to claim ,, character ized in that the glue which is coated beforehand, the backing sheet is obtained by additionally using sodium carbonate, rosin, egg al bumina, of sulfur flower and arabic gum.

4 A method according to claim, character ized in that the glue which is coated beforehand on the support sheet is obtained by preparing a first com position by pouring in 18 liters of boiling water first about 12 kilos of white corn dextrin and then about C kilios of powdered rice starch, the whole being subjected to boiling for about 5 minutes and the product being sieved, as soon as it is removed from the heat,

by adding to this first composition a second composition which is obtained by pouring into 2 liters of cold water approximately 400 g of sodium carbonate and 400 g of pure French rosin powder, and subjecting the whole to the action of boiling, stirring continuously until complete liquefaction of the rosin, before adding it to the first composition, approximately at the same time as a third composition,

comprising approximately 200 gr of egg albumin in a liter of water and having been prepared in advance so that the albumin mine, when using this third composition, is completely liquefied, a fourth composition, constituted by a mixture of about 200 gr of flower of sulfur, about 400 gr of gum arabic and about 2 kilos of blond glycerin distilled at <B> 28 '</B> Bé being added to the first at the same time than the others,

the glue thus obtained then being sieved several times. 5 Method according to. Claim, characterized in that the support sheet is made of cellulose-based paper.

6 A method according to claim, characterized in that the composition which is added to the ink, respectively to the color, is mixed with, the latter in the proportion to the envi Mon 300 gr per -kilo, of ink,,

respec- tively colored. 7 A method according to claim, characterized in that the composition which l'.on adds to the ink, respectively to the color, is obtained by mixing about 5 liters of gasoline -de turpentine, about 1.5 kg of pure virgin wax, approximately 250 g of paraffin and approximately 2000 g of powder <B> -de </B>: French rosin, the whole being heated:

in a water bath until all the substances are completely dissolved and the product is finally sieved. 8, The method of claim, characterized in ee that the composition that -l'on added to the ink, respectively to the color, is obtained by mixing about 5 liters of turpentine -se sence, about 1.5 kg of pure virgin wax, about 250 gr of stearin and about 2000 gr of French colophane powder,

the whole being heated in a water bath until all the substances are completely dissolved. 9 and the product finally being sieved. 9 The method of claim; characterized in that the backing sheet is dusted with fine French rosin powder immediately after printing said sheet.