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US1370076A - Process for scouring vegetable fibers, &c. - Google Patents

Process for scouring vegetable fibers, &c. Download PDF

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Publication number
US1370076A
US1370076A US334345A US33434519A US1370076A US 1370076 A US1370076 A US 1370076A US 334345 A US334345 A US 334345A US 33434519 A US33434519 A US 33434519A US 1370076 A US1370076 A US 1370076A
Authority
US
United States
Prior art keywords
fibers
bath
scouring
vegetable fibers
hours
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
US334345A
Other languages
English (en)
Inventor
Watremez Emile Theodore Joseph
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
Priority to NL8904D priority Critical patent/NL8904C/xx
Priority to NL13158D priority patent/NL13158C/xx
Application filed by Individual filed Critical Individual
Priority to US334345A priority patent/US1370076A/en
Application granted granted Critical
Publication of US1370076A publication Critical patent/US1370076A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D06L1/18—Working under pressure in closed vessels

Definitions

  • the process according to the present invention is based on the use in scourin baths consisting essentially in a mixture of alkali or alkaline salt, metallic oxid and a hypochlorite such as J avelle water.
  • the metallic oxid may be replaced-if desired,j by the metal itself reducedto powder. Any metal ma lbe'employed, preferably zinc.
  • the fibers to be treated are steeped with the bath liquor by means of pressure rollers. As soon "as they are uniformly steeped, they are preferably placed in a keir into which the bath liquor is pumped until the fibers are completely covered,
  • the fibers are kept immersed in the bath during a period of 12 to 24 hours and even longer, the time varying with the nature of the product.
  • the characteristic feature of the bath as described above consists in its composition, that is to say the ,mixture of an alkalimetal hypochlorite and a salt of an alkali metal.
  • Patented Man 1, 1921 Patented Man 1, 1921.
  • the fibers are treated for'several minutes acid of Baum strength, which is and are then rinsed again, being afterward subjected to the bleaching process proper.
  • the operation may be repeated several times without any danger, 'to' the fibers, with or without a bleaching operation, 'between two consecutive scourings, that is to sayfor instance, on leaving the acid bath the fibers ar'e treated. with ,.-a hypochlorite in theord inary apparatus 'and are SEARCH ROOM then returned to the original bath.
  • fibers maybe passed throughthe original bath several times. n
  • this latter 'casecthe Y alkali is added to the already existingmizrture.
  • the following pro ortions may be used for treating 1000 ki ogs. of material Sodium thiosulfate (Na s O 25 kilogs. is dissolved in commercial Javelle water 50 liters. Zinc powder 5 kilogs. is then stirred into the solution, which is left standing for 12 hours.
  • Caustic soda lye of 30 Baum 150 liters is added and after stirring, the mixture is left standing for 24 hours.
  • the bath is preparedf by I treatingthe' course be varied according to the nature of the fibers to be treated and the effect which it is desired to obtain. .7 This. mixture. is diluted with Water in order'to bring the bath to the desired vol ume and is then heated to boiling point.
  • the bath has a tendency to become neutral by reason of the intense action on the natural coloring matters. It is necessary to Watch it and to add, if necessary, caustic soda in small quantities, in order to maintain the alkalinity.
  • Boiling is prolonged for 4 to 6 hours. Then, 1n order to attain a still more complete scouring, the combined substances existing in the fiber are precipitated by adding 15 kilo s. of slaked lime and by continuing the boiling for 3 to 4 hours.
  • the fibers are immersed for 2 to 3 hours in a bath containing, for example 5 to 7 per cent, by volume, of ammonium sul- 'fate. After rinsing-they are immersed for 2 to 4 hours in a coldvacid bath consisting for instance of 2 'per' cent. by volume of sulfuric acid of"60 Baum strength.
  • the fiber is rinsed and is then ready for rapid and complete bleaching by the ordinary means.
  • the bath is so effective that in certain cases the operation can even be performed in the cold, but in such case it is preferable to pass the fiber after a summary rinsing, throughmilk of lime. This allows the first bath to be preserved, all that is necessary being to replenish it.
  • Iclaimasmy inventions A process for scouring fibers of vegetable origin With-the object of facilitating and accelerating their final bleaching, characterized by the feature that the fibers to be treated are immersed in the cold in a bath consisting ofamixture of an alkalija metallic oxid and an alkali metal hypochlorite, for a time varying from 12 to 24 hours, thereupon rinsed, treated in the warm for several minutes with sulfuric acid solution and finally rinsed.
  • a process ofjscou rin'g' vegetable fibers consisting in steeping the'fibers in a bath comprising an alkali, a metallic substance and an alkalinetal hypochlorite; then successively rinsing the fibers, treating thenr with sulfuric acid solution and again rinsing them.
  • the fibersiinla bath comprising an alkali, Javelle zinc; and then'rinsing the fibers;
  • the herein-disclosed p'ro'cess'of scouring vegetable fibers which consists in dissolving a soluble alkali metal hypochlorite in a soluble alkaline reducing salt, and then subjecting a metal to the action ofthe solution thus obtained; then steeping the fibers in the solution obtained from theaction of the first solution on rinsing the fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
US334345A 1919-10-29 1919-10-29 Process for scouring vegetable fibers, &c. Expired - Lifetime US1370076A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL8904D NL8904C (xx) 1919-10-29
NL13158D NL13158C (xx) 1919-10-29
US334345A US1370076A (en) 1919-10-29 1919-10-29 Process for scouring vegetable fibers, &c.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334345A US1370076A (en) 1919-10-29 1919-10-29 Process for scouring vegetable fibers, &c.

Publications (1)

Publication Number Publication Date
US1370076A true US1370076A (en) 1921-03-01

Family

ID=23306793

Family Applications (1)

Application Number Title Priority Date Filing Date
US334345A Expired - Lifetime US1370076A (en) 1919-10-29 1919-10-29 Process for scouring vegetable fibers, &c.

Country Status (2)

Country Link
US (1) US1370076A (xx)
NL (2) NL13158C (xx)

Also Published As

Publication number Publication date
NL8904C (xx)
NL13158C (xx)

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