US872250A - Dyestuff and process of making same. - Google Patents

Dyestuff and process of making same. Download PDF

Info

Publication number
US872250A
US872250A US29585106A US1906295851A US872250A US 872250 A US872250 A US 872250A US 29585106 A US29585106 A US 29585106A US 1906295851 A US1906295851 A US 1906295851A US 872250 A US872250 A US 872250A
Authority
US
United States
Prior art keywords
hematin
dyestuff
making same
hematoxylin
solution
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US29585106A
Inventor
Francis J Oakes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US29585106A priority Critical patent/US872250A/en
Application granted granted Critical
Publication of US872250A publication Critical patent/US872250A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds

Definitions

  • Vegetable coloring matter extracted from logwood and commonly designated as hematoxylin has been, in practice, sufficiently oxidized by bringing atmospheric air into contact with a solution thereof, the resulting product being well known as hematin.
  • the aforesaid process for producing hematin imparts thereto, however, an acid character, which is not, in all cases, desirable, as for instance in the process of therewith dyeing skein silk black in a soap bath, in which case the said acidity of the hematin may unduly decompose the soap, thereby undesirably setting free fatty acids, which results in what is known in the art as breaking the soap, the injuriousness of which, both to the bath andthe article dyed are well understood by those skilled in the art.
  • My said process is performed as follows. I first produce in any convenient manner a solution of the hematoxylin. Into this I inject oxygen, preferably as contained in atmospheric air, until the hematoxylin has been changed by the consequent reactions into hematin. I then add to this solution of hematin the said alkaline nitrite until said hematin has become neutral.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Coloring (AREA)

Description

FRANCIS I. QAKES, OF NEW YORK, N. Y.
DYEST'UFF AND PROCESS OF MAKING SAME.
Specification of Letters Patent.
Patented Nov. 26, 1907.
Application filed January 13. 1906. Serial No. 295.851-
To all whom it may concern:
Be it known that I, FRANcIs J. OAKES, a citizenof the United States, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Dyestuffs and Processes for Producing the Same, of which the following is a specification.
Vegetable coloring matter extracted from logwood and commonly designated as hematoxylin has been, in practice, sufficiently oxidized by bringing atmospheric air into contact with a solution thereof, the resulting product being well known as hematin. The aforesaid process for producing hematin imparts thereto, however, an acid character, which is not, in all cases, desirable, as for instance in the process of therewith dyeing skein silk black in a soap bath, in which case the said acidity of the hematin may unduly decompose the soap, thereby undesirably setting free fatty acids, which results in what is known in the art as breaking the soap, the injuriousness of which, both to the bath andthe article dyed are well understood by those skilled in the art. My researches have demonstrated that the aforesaid undesirable acid condition of the hematin for the purposes described and other analogous purposes may be largely, if not entirely, overcome and a practicable neutrality imparted by adding to thehematin, at the conclusion of the said oxidation process, a suflicient quantity of an alkaline nitrite, either in the form of a dry salt, or, preferably in a watery solution, which, combining with the acid, results in the production of the practically neutral hematin desired for the specific purpose above referred to.
My said process is performed as follows. I first produce in any convenient manner a solution of the hematoxylin. Into this I inject oxygen, preferably as contained in atmospheric air, until the hematoxylin has been changed by the consequent reactions into hematin. I then add to this solution of hematin the said alkaline nitrite until said hematin has become neutral.
I am aware that hematoxylin has been previously oxidized into hematin; also that hematoxylin has been treated with nitrite of soda as a substitute for such oxidation, but I believe myself to be the first to treat hematin with such nitrite.
What I claim as new and desire to secure by Letters Patent is the following, viz:
The above described process for producing an improved dye stuff which consists in first making a solution of hematoxylin, next in jecting into such solution oxygen until the hematoxylin has been changed to hematin and finally adding to the solution an alkaline nitrite until said hematin has become neutral.
FRANCIS J. OAKES. lVitnesses:
WALTER D. EDMoNDs, PHILIP C. PECK.
US29585106A 1906-01-13 1906-01-13 Dyestuff and process of making same. Expired - Lifetime US872250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29585106A US872250A (en) 1906-01-13 1906-01-13 Dyestuff and process of making same.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29585106A US872250A (en) 1906-01-13 1906-01-13 Dyestuff and process of making same.

Publications (1)

Publication Number Publication Date
US872250A true US872250A (en) 1907-11-26

Family

ID=2940697

Family Applications (1)

Application Number Title Priority Date Filing Date
US29585106A Expired - Lifetime US872250A (en) 1906-01-13 1906-01-13 Dyestuff and process of making same.

Country Status (1)

Country Link
US (1) US872250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535833A (en) * 1993-09-08 1996-07-16 Mathews; Linden H. Tool for weeding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535833A (en) * 1993-09-08 1996-07-16 Mathews; Linden H. Tool for weeding

Similar Documents

Publication Publication Date Title
US872250A (en) Dyestuff and process of making same.
US2018276A (en) Art of treating vegetable fibers
US308706A (en) Vigny
DE904885C (en) Process for activating the oxidative capacity of chlorite solutions
US1668875A (en) Method of treating fur skins and the like
CH412865A (en) Process for the production of sulfuric acid action products of higher molecular weight unsaturated compounds with a high degree of sulfonation
US671344A (en) New form of indigo readily soluble in vats and method of making same.
US759008A (en) Glucoside dye and process of making same.
DE658703C (en) Process for treating fibrous materials
AT77904B (en) Process for the production of real black dyeings on furs and hides.
US1361833A (en) Process for removing ink and other stains from cloth, paper, &c.
DE595187C (en) Process for dyeing leather
US1379175A (en) Solvent for dyestuffs
US1227361A (en) Process of rendering textile fabrics antique.
DE100556C (en)
DE570022C (en) Process for bleaching unbuckled cotton
US1041587A (en) Process of producing dyed cellulose ester.
US700284A (en) Process of mordanting animal fiber.
US211609A (en) Improvement in treating fiber from mixed fabrics
DE564489C (en) Process for the production of products similar to turkey roll oil
DE430620C (en) Process for producing aniline black
DE807289C (en) Process for the production of copper-containing o, o-dioxyazo dyes
US1486353A (en) George j
DE562297C (en) Process for peeling off or bleaching dyed acetate silk
GB190612517A (en) Improvements in the Removal of Colouring Matter from Dyed, or Naturally Coloured, Material.