BE411851A - - Google Patents
Info
- Publication number
- BE411851A BE411851A BE411851DA BE411851A BE 411851 A BE411851 A BE 411851A BE 411851D A BE411851D A BE 411851DA BE 411851 A BE411851 A BE 411851A
- Authority
- BE
- Belgium
- Prior art keywords
- white
- furs
- usual
- grs
- alkali
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 238000004040 coloring Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- XCAUINMIESBTBL-UHFFFAOYSA-N Lead(II) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 5
- 210000003491 Skin Anatomy 0.000 description 5
- 239000000975 dye Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229940056932 lead sulfide Drugs 0.000 description 3
- 229910052981 lead sulfide Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-Diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- MGLZGLAFFOMWPB-UHFFFAOYSA-N 2-chloro-1,4-phenylenediamine Chemical compound NC1=CC=C(N)C(Cl)=C1 MGLZGLAFFOMWPB-UHFFFAOYSA-N 0.000 description 1
- 210000004209 Hair Anatomy 0.000 description 1
- 231100000601 Intoxication Toxicity 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L Lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000004 White lead Inorganic materials 0.000 description 1
- 210000002268 Wool Anatomy 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- QJQZEJFUIOWFMS-UHFFFAOYSA-N formaldehyde;sulfanediol Chemical compound O=C.OSO QJQZEJFUIOWFMS-UHFFFAOYSA-N 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 229960001367 tartaric acid Drugs 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/30—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts
- D06P3/305—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts with oxidation dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Description
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Procédé de fabrication de fourrures à pointes blanches.
Jusqu'à présent, la fabrication de fourrures à pointes blanches a lieu essentiellement d'après deux procédés. Suivant l'un de ces procédés, on traite les fourrures 'dans des solutions de sels de plomb, puis dans des solutions de sulfures ou de polysulfures alcalins, de sorte que du sulfure de plomb allant du brun au noir, suivant le mode de traitement, est précipité sur le poil de la fourrure.
Pour obtenir les pointes blanches, on frotte alcors la fourrure superficiellement avec une. solution acide de peroxyde d'hydrogène qui transforme le sulfure de plomb en sulfate de plomb blanc. un autre procédé consiste
<Desc/Clms Page number 2>
à appliquer un mélange déterminé de paraffine à l'état fondu, au moyen d'une brosse ou d'un pinceau, sur les endroits de la .fourrure qui doivent rester blancs, puis à mordancer la peau comme d'habitude et à la teindre au moyen de colorants d'oxydation. Finalement; la réserve de paraffine est éliminée de la peau par épuration à chaud.
Or, on a trouvé qu'on obtient des effets de blanc très beaux et stables sur les fourrures si, pour l'élimina- tion du mordant, on pointe la fourrure , macérée et sécrétée à la manière usuelle, au moyen de solutions, le cas échéant épaissies, de carbonates ou de bisulfites alcalins, on la rince à fond ;près l'avoir laissée reposer pendant quelque temps, et si on l'introduit comme d'habitude dans un bain de colorants d'oxydation qui ne teignent pas les pointes ainsi traitées. L'effet de blanc peut encore être amélioré par un bain de décoloration de réduction.
Le nouveau procédé a, sur le procédé au sulfure de plomb, avec ses dangers d'intoxication par les sels de plomb et l'hydrogène sulfuré, l'avantage d'être entièrement inoffensif. Il ne présente pas non plus le danger que les pointes blanches jaunissent graduellement, ce qui se produit presque toujours, ¯avec le procédé au sulfure de plomb, par reformation du sulfure de plomb, comparativement au procédé à la paraffine, il a l'avantage d'un mode opératoire plus simple et d'une application industrielle plus facile.
.Exemple : On fait macérer une peau d'agneau laine longue, pendant deux heures, à 25 C, dans une solution de 3 grs. de carbonate de soude calciné et de 5 cm3 d'ammoniaque à 24% par litre, puis on la rince comme d'habitude et on la débarrasse dans un bain acide de l'alcali qui pourrait encore y adhérer.
La peau ayant subi ce traitement préparatoire est placée, durant toute une nuit, dans un bain contenant par litre
<Desc/Clms Page number 3>
2 grs. de bichromate de potasse, 0,5 gr. d'acide tartrique et 30 grs. de sel commun/ On essore ensuite la peau, on l'étire et on l'enduit, à l'aide d'une brosse, aux endroits à réserver, avec une solution contenant par litre 100 grs. de carbonate de soude calciné, 50 grs. de fécule et 20 grs. d'un agent de protection de la fibre suivant exemple 6 du brevet belge n 323.090 du 19 janvier 1925,
Après l'avoir laissée reposer pendant plusieurs heures, on la rince soigneusement jusqu'à élimination de la pâte et on la.teint dans un bain ayant la composition suivante :
2 grs. d'un mélange de 40 parties du composé obtenu par dissolution de 1 molécule de 2,7- dioxynaphtaline et de 2 molécules de 3-chloro- 1,4-diaminobenzol dans de l'alcool et évaporation du dissolvant, et 60 parties d'un agent de dispersion, 2 cm3 de peroxyde d'hydrogène à 30% par litre, en veillant à ce que la longueur de bain soit de 1 : 50. Après une durée de teinture de 20 minutes à 28 0, on retire la peau, on la rince soigneusement et on la soumet à un blanchiment complémentaire, pendant un quart d'heure, dans un bain contenant 3 grs. du sel de zinc de l'acide formaldéhydesulfoxylique et 1 cm3 d'acide acétique à 30% par litre. On obtient un fond d'un brun-gris foncé à pointes blanches.
En remplacent.le colorant d'oxydation mentionné par le pro duit analogue obtenu au moyen de 1 molécule de 1,5 -diozynaphtaline et de 1 molécule de m-toluylène-diamine, on obtient, par le même mode opératoire, des pointes blanches sur un fond d'un brun foncé.
<Desc / Clms Page number 1>
A method of manufacturing furs with white tips.
Up to now, the manufacture of white-tipped furs has mainly taken place by two processes. According to one of these processes, the furs are treated in solutions of lead salts, then in solutions of alkali sulphides or polysulphides, so that lead sulphide ranging from brown to black, depending on the method of treatment , is precipitated on the hair of the fur.
To obtain the white tips, the fur is then rubbed superficially with a. acidic solution of hydrogen peroxide which converts lead sulfide into white lead sulfate. another process is
<Desc / Clms Page number 2>
to apply a specific mixture of paraffin in the molten state, by means of a brush or a brush, on the places of the fur which must remain white, then to bite the skin as usual and to dye it by means of oxidation dyes. Finally; the paraffin reserve is removed from the skin by hot scrubbing.
However, it has been found that very fine and stable white effects are obtained on the furs if, for the elimination of the mordant, the fur is pointed, macerated and secreted in the usual manner, by means of solutions, the if need be thickened, with carbonates or alkaline bisulphites, it is rinsed thoroughly; after having left it to stand for some time, and if it is introduced as usual in a bath of oxidation dyes which do not dye the tips thus treated. The white effect can be further enhanced by a reduction discoloration bath.
The new process has, over the lead sulphide process, with its dangers of intoxication by lead salts and hydrogen sulphide, the advantage of being completely harmless. It also does not present the danger of the white tips gradually turning yellow, which almost always occurs, ¯ with the lead sulfide process, by reformation of lead sulfide, compared to the paraffin process, it has the advantage a simpler operating mode and easier industrial application.
Example: A long wool lambskin is macerated for two hours at 25 C in a solution of 3 grs. of calcined soda ash and 5 cm3 of 24% ammonia per liter, then rinsed as usual and freed in an acid bath of alkali which could still adhere to it.
The skin having undergone this preparatory treatment is placed, overnight, in a bath containing per liter
<Desc / Clms Page number 3>
2 grs. of bichromate of potassium, 0.5 gr. tartaric acid and 30 grs. of common salt / The skin is then wrung, stretched and coated, using a brush, in the places to be reserved, with a solution containing 100 grs per liter. of calcined soda ash, 50 grs. of starch and 20 grs. a fiber protection agent according to example 6 of Belgian patent no.323.090 of January 19, 1925,
After having left it to stand for several hours, it is rinsed thoroughly until the paste is removed and it is dyed in a bath having the following composition:
2 grs. of a mixture of 40 parts of the compound obtained by dissolving 1 molecule of 2,7-dioxynaphthalene and 2 molecules of 3-chloro-1,4-diaminobenzol in alcohol and evaporation of the solvent, and 60 parts of a dispersing agent, 2 cm3 of 30% hydrogen peroxide per liter, ensuring that the bath length is 1: 50. After a dyeing time of 20 minutes at 28 0, the skin is removed, it is rinsed thoroughly and subjected to additional bleaching for a quarter of an hour in a bath containing 3 grams. zinc salt of formaldehyde sulfoxylic acid and 1 cm3 of 30% acetic acid per liter. A dark brown-gray background with white tips is obtained.
By replacing the oxidation dye mentioned by the analogous product obtained by means of 1 molecule of 1,5 -diozynaphthaline and 1 molecule of m-toluylenediamine, white tips are obtained by the same procedure on a dark brown background.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE411851A true BE411851A (en) |
Family
ID=75725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE411851D BE411851A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE411851A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1247262B (en) * | 1958-09-26 | 1967-08-17 | Thorer & Co | Process for metallizing the hair side of fur skins |
-
0
- BE BE411851D patent/BE411851A/fr unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1247262B (en) * | 1958-09-26 | 1967-08-17 | Thorer & Co | Process for metallizing the hair side of fur skins |
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