US1746842A - Process for treating fibrous plant tissues - Google Patents

Process for treating fibrous plant tissues Download PDF

Info

Publication number
US1746842A
US1746842A US260554A US26055428A US1746842A US 1746842 A US1746842 A US 1746842A US 260554 A US260554 A US 260554A US 26055428 A US26055428 A US 26055428A US 1746842 A US1746842 A US 1746842A
Authority
US
United States
Prior art keywords
plant tissues
fibrous plant
fibre
treating fibrous
treatment
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
US260554A
Inventor
Nanji Dinshaw Rattonji
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.)
DUNCAN MAYBURY STEWART
Original Assignee
DUNCAN MAYBURY STEWART
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 DUNCAN MAYBURY STEWART filed Critical DUNCAN MAYBURY STEWART
Application granted granted Critical
Publication of US1746842A publication Critical patent/US1746842A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
    • D01C1/00—Treatment of vegetable material
    • D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres

Definitions

  • This invention relates to a new or improved process of treating fibrous plant tissues for the production of a lustrous or silk-like fibre suitable for spinning.
  • the object of the invention is the production from bast tissues including such fibrous vegetable material as flax, hemp ramie and the like of a fibre not only possessing a texture and lustre equal, if not superior to those of the cellulose products known in commerce as artificial silk, but also having greater tensile strength than such products and producible much more economically.
  • the improved process for the production of lustrous fibre consists in treating the vegetable fibre or plant tissue either in the raw or unworked condition, or after it has been spun or woven, with an alkaline reagent and heating, preferably, under a relatively high pressure, for instance from 6 to 10 atmospheres, which may be developed by heating the liquid under confinement sufliciently to produce such pressure, the treatment under pressure being continued for a comparatively short time.
  • a relatively high pressure for instance from 6 to 10 atmospheres, which may be developed by heating the liquid under confinement sufliciently to produce such pressure, the treatment under pressure being continued for a comparatively short time.
  • hemp As an example of the application of the process to a specific fibrous raw material, the following method of treating hemp is given. Hemp in the form of hank or yarn is heated in an autoclave, with a suitable volume of a 1 to 4 per cent solution of caustic soda, the treatment being effected at a pressure of 10 atmospheres or thereabouts, which may be produced by heating under confinement, continued for a period of from to minutes duration.
  • the material thus treated is then preferably washed to free it from the major part of the alkali and bleached inthe usual manner.
  • the bleaching operation may, however, be effected prior to the treatment with the alkaline reagent.
  • the resultant product is found to have a lustre and texture comparable with that of artificial silk, but is of greater strength than artificial silk, and it may be woven or otherwise worked in ordinary textile machinery and generally used in the manner of an ordinary silken fibre or fabric. Further, fabrics of the material obtained are subject to less rapid deterioration in laundering than fabrics of ordinary artificial silk.
  • the actual conditions employed such as time of treatment, strength of alkaline reagent and temperature and pressure at which the operation is carried out may be varied according to the nature of the raw material, and other suitable alkaline substances than caustic soda, such as sodium carbonate, sulphide or silicate may be employed.
  • a process for the production of a lustrous fibre consisting in heating hast tissues with a caustic soda solution of l to 4 per cent concentration, the treatment being effected at a pressure of approximately 10 atmospheres and continued for a period of from 2060 minutes duration.
  • a process for the production of a lustro us fibre consisting in the treatment of bast tissues with an alkaline reagent and heating under a pressure of from 6 to 10 atmospheres for a comparatively short time.

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Textile Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

Patented Feb. 11, 1930 UNITED STATES PATENT OFFICE DINSHA'W BATTONJ'I NANJI, OF HEADINGLEY, LEEDS, ENGLAND, ASSIGNOR OF ONE- HALF TO DUNCAN MAYIBURY STEWART, OF LONDON, ENGLAND PROCESS FOR TREATING FIBROUS PLANT TISSUES No Drawing. Application filed March 9, 1928, Serial No. 260,554, and in Great Britain Apri1 29, 1927.
This invention relates to a new or improved process of treating fibrous plant tissues for the production of a lustrous or silk-like fibre suitable for spinning.
The object of the invention is the production from bast tissues including such fibrous vegetable material as flax, hemp ramie and the like of a fibre not only possessing a texture and lustre equal, if not superior to those of the cellulose products known in commerce as artificial silk, but also having greater tensile strength than such products and producible much more economically.
Broadly, the improved process for the production of lustrous fibre consists in treating the vegetable fibre or plant tissue either in the raw or unworked condition, or after it has been spun or woven, with an alkaline reagent and heating, preferably, under a relatively high pressure, for instance from 6 to 10 atmospheres, which may be developed by heating the liquid under confinement sufliciently to produce such pressure, the treatment under pressure being continued for a comparatively short time. By means of this treatment, it is possible to remove pectin and other impurities with which the actual fibre itself is impregnated and so produce the silklike lustre characteristic of the fibre obtained, without in any way impairing its inherent natural strength.
As an example of the application of the process to a specific fibrous raw material, the following method of treating hemp is given. Hemp in the form of hank or yarn is heated in an autoclave, with a suitable volume of a 1 to 4 per cent solution of caustic soda, the treatment being effected at a pressure of 10 atmospheres or thereabouts, which may be produced by heating under confinement, continued for a period of from to minutes duration.
The material thus treated is then preferably washed to free it from the major part of the alkali and bleached inthe usual manner.
The bleaching operation may, however, be effected prior to the treatment with the alkaline reagent.
The resultant product is found to have a lustre and texture comparable with that of artificial silk, but is of greater strength than artificial silk, and it may be woven or otherwise worked in ordinary textile machinery and generally used in the manner of an ordinary silken fibre or fabric. Further, fabrics of the material obtained are subject to less rapid deterioration in laundering than fabrics of ordinary artificial silk.
The actual conditions employed, such as time of treatment, strength of alkaline reagent and temperature and pressure at which the operation is carried out may be varied according to the nature of the raw material, and other suitable alkaline substances than caustic soda, such as sodium carbonate, sulphide or silicate may be employed.
It will also be seen that the improved process may quite well be applied to such raw materials as flax which require a preliminary retting or equivalent process for the resolution of the plant tissues into its individual fibres.
I claim 1. A process for the production of a lustrous fibre consisting in heating hast tissues with a caustic soda solution of l to 4 per cent concentration, the treatment being effected at a pressure of approximately 10 atmospheres and continued for a period of from 2060 minutes duration.
2. A process for the production of a lustro us fibre, consisting in the treatment of bast tissues with an alkaline reagent and heating under a pressure of from 6 to 10 atmospheres for a comparatively short time.
In testimony whereof I aflix my signature.
DINSHAlV RATTONJ I NANJI.
US260554A 1927-04-29 1928-03-09 Process for treating fibrous plant tissues Expired - Lifetime US1746842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1746842X 1927-04-29

Publications (1)

Publication Number Publication Date
US1746842A true US1746842A (en) 1930-02-11

Family

ID=10889756

Family Applications (1)

Application Number Title Priority Date Filing Date
US260554A Expired - Lifetime US1746842A (en) 1927-04-29 1928-03-09 Process for treating fibrous plant tissues

Country Status (1)

Country Link
US (1) US1746842A (en)

Similar Documents

Publication Publication Date Title
US1989099A (en) Process of improving artificial threads
EP2162581B1 (en) High-strength fibrous material consisting of natural fibres, method for the production thereof, and use of same for producing composite materials
US2379264A (en) Process for producing potentially adhesive textile fibers
US1814155A (en) Process of treating vegetable fibers
US1741637A (en) Vegetable textile material and process for producing same
US2883826A (en) Process for conditioning plant fibers for spinning
US1746842A (en) Process for treating fibrous plant tissues
US1922308A (en) Process for improving vegetable textile materials
US2184586A (en) Conversion of waste regenerated cellulose to cellulose xanthate
US1739683A (en) Treatment of fibrous vegetable materials
US2070273A (en) Process of treating vegetable fibers
US250286A (en) bobbins
US2099400A (en) Preparation of paper pulp
US1843851A (en) Process of degumming textile plants
US464056A (en) George e
US1795414A (en) Manufacture of textile fibers
US1850791A (en) Felt component and process of making same
GB412470A (en) Process for refining fibres of hemp and other bast fibres such as nettle fibres, flax fibres and the like
US2180087A (en) Wet treatment of raw bast fibers
US2932600A (en) Process for the production of pulp from bagasse
US1889377A (en) Artificial wool and art of making same
US1441740A (en) Mercerizing of cotton
US2271218A (en) Method of decomposing maize straw for textile purposes
US1086270A (en) Process of preparing flax.
GB296334A (en) Process for treating fibrous plant tissues