US2071651A - Process and device for degumming ramie and other similar fibers - Google Patents

Process and device for degumming ramie and other similar fibers Download PDF

Info

Publication number
US2071651A
US2071651A US4200235A US2071651A US 2071651 A US2071651 A US 2071651A US 4200235 A US4200235 A US 4200235A US 2071651 A US2071651 A US 2071651A
Authority
US
United States
Prior art keywords
fibers
fiber
cage
degumming
ramie
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
Other languages
English (en)
Inventor
David S Neill
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
Application granted granted Critical
Publication of US2071651A publication Critical patent/US2071651A/en
Priority claimed from GB271339A external-priority patent/GB521528A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/48—Seals

Definitions

  • This present invention is characterized in that the very adhesive gum which binds together the fine filaments of decorticated ramie (China grass) can be completely removed by a very simple andeconomical process, and with mechanical means without having recourse to any chemical reaction.
  • the process is essentially mechanical, inasmuch as the degumming is obtained by merely submitting the fiber to a suitable vibratory shaking after a short treatment in an open keir with a light solution of hot water and ordinary soda or potash soap.
  • Neuter soaps, i. e. free of an excess of alkali are preferable, and the water should be soft.
  • Fig. 1 shows a front view of the cage and the vibratory mechanical shaking device
  • Fig. 2 shows, in longitudinal section, one of the additional circular trays which can be inserted into the cage
  • Fig. 3 shows, in a longitudinal section, the cage introduced into the keir for the degumming operation.
  • the fiber there are two ways of operating; but in either .case it is advisable to allow the fiber to soak for several hours beforehand in water before submitting it to the treatment proper, as thiswill remove a considerable portion of the coloring matter and facilitate subsequent bleaching operations.
  • first method the fiber is immerged in water either cold or already heated, with about 1% (of the weight of the water) or soap as aforesaid. The temperature is gradually raised to 75-85 centidegrees (167 to 185 F.) and held at that for about 30 minutes, and then raised to boiling point for two or .three' minutes.
  • the fiber is extracted from the hot bath and plunged in cold water, running preferably, and submitted to an energetic vibratory shaking. Almost immediately the fiber will be observed to assume the aspect of a silky pulp the filaments disengaging themselves from each other. .In less than a minute the operation is completed and the fiber, after being rinsed, always under According to a vibration, and preferably in running water for the purpose also of eliminating the particles of bark entangled in the fiber, is ready for the bleaching bath which if containing hypochl'orite of calcium as one of its ingredients will have the effect of 5 causing whatever little residue of soapy matter maybe still clinging to the filaments, to flocculate-this flocculation being removed by the subsequent rinsing.
  • the process is the same as described in method above indicated; then after the fiber has been allowed to remain at a temperature of from 167 to 185 F. (75-85 centidegrees) for about 30 minutes the vibratory motion is applied in the same hot bath.
  • the mass of fiber will at once assume the aspect of a silky pulp and the filaments will become disengaged.
  • the fiber is thereupon withdrawn from the soapy solution, is rinsedunder vibration in clean hot water, and immerged in a third bath of hot water which is raised for a short while to boiling point, vibration being applied continually in the meantime.
  • Rinsing in cold water, preferably running, follows; also bleaching process as per the first method.
  • the vibratory action maybe transmitted in the desired conditions to the entire mass of fiber, the latter should be placed in such a manner as to enable the mechanical device whereby the vibration is produced to effectively exercise its effect in the proper direction.
  • the appliance hereinafter described is one of the means especially adapted to obtain the abovesaid result.
  • Fig. 1 the-dimen- 40 sions whereof will vary according to the quantity of fiber it is found desirable to treat at a time
  • a platform A open at the top and closed at the bottom by a platform A as hereinafter described.
  • the topring B is joined to the platform by means of four equidistant rods C, C, C",C"', which will serve also -as legs, the ends whereof are embossed in rubber.
  • the rods are strongly bound to each other by crossed stays I.
  • the Whole system should be extremely rigid and to this end the metal employed for its construction'should be particularly adapted to resist vibration and suitably protected from corrosion caused by the bleaching liquor.
  • the vibrating apparatuses On two of the abovesaid rods which face each other, (I. i. C and C) are fixed, outside of the cage, the vibrating apparatuses. They consist respectively in a supporting block E and E rigidly attached to the cage and connected with the bottom and lateral sections thereof by means of strong stays.
  • the supporting block carries on the top part an axis F and F on which revolves, on a. horizontal plane, a metal disc, G'and G, of such' dimensions and weight as to produce the necessary vibration.
  • the vibration is obtained by the axis of rotation of the disc being made eccentric and the higher the eccentricity the more ample the vibration will be, of course.
  • the axis of rotation of the disc can be displaced so as to regulate the amplitude of the vibration.
  • the rotation of the disc is obtained by means of a driving belt on the'pulley H, H which is attached to the disc or by any other suitable mechanical device.
  • the transmission of the vibration to the entire mass of fiber under treatment is obtained by the following means.
  • the diameter ofthe needles will be that of an ordinary knitting needle.
  • the fiber on being removed from the water after the first soaking, is spread out but not pressed on the platform in a layer corresponding in thickness to the length of the needles, and perpendicularly to the direction that the vibratory motion will have, i. e. perpendicular"to the rods which carry the vibratoryapparatuses.
  • the second layer is spread out in a like manner on a circular tray L (Fig. 2), made of wire netting same as platform A of a suitable diameter for easy insertion in the tiplying the number of the vibrating units, the
  • the cage with its load of fiber being now ready for the degumming operation, it is hoisted by some suitable gear, brought over the keir or vat containing the solution of water and soap and lowered into same. Thereafter the process is as respectively described for the two aforesaid methods.
  • the process can be usefully extended to other textile fibers similar to China grass.
  • Process for degumming ramie and other like fibers which comprises soaking the fibers in a solution of soft water and washing soap to soften the gummy substance adhering to the fibers and subjecting the fibers to a vibratory motion.
  • Process for degumming ramie and other like fibers which comprises subjecting the fibers to a hot saponaceous bath, plunging the fibers into cold water and thereafter subjecting the fibers to vibratory motion.
  • a process for degumming ramie and other like fibers which comprises boiling the fibers in a hot soapy solution until the gummy substance adhering to the fibers is softened and then subjecting the fibers to vibratory motion until the said substances are emulsified and separated from the fibers.
  • Apparatus for degumming ramie and other fibers comprising an open-topped cage, a wire platform forming the bottom of the cage, a series of needles with rounded points fixed in said platform in spaced relation to each other, a series of wire trays mounted above said platform in superposed relation, similar needles projecting upwardly and downwardly from each of said trays, the needles being embedded in the fibers on the platform and on the trays, and means for vibrating the cage.
  • Apparatus for degumming ramie and other like fibers comprising a cage, needles mounted in the cage for engaging the fibers, supporting means at each side of the cage, rotary spindles carried by said means, eccentric discs carried by said spindles and means for rotating the spindles and discs for imparting vibratory movement to the cage.

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)
  • Treatment Of Fiber Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
US4200235 1935-08-27 1935-09-25 Process and device for degumming ramie and other similar fibers Expired - Lifetime US2071651A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2071651X 1935-08-27
GB271339A GB521528A (en) 1939-01-26 1939-01-26 Process and device for de-gumming ramie and other similar fibres

Publications (1)

Publication Number Publication Date
US2071651A true US2071651A (en) 1937-02-23

Family

ID=31995659

Family Applications (1)

Application Number Title Priority Date Filing Date
US4200235 Expired - Lifetime US2071651A (en) 1935-08-27 1935-09-25 Process and device for degumming ramie and other similar fibers

Country Status (5)

Country Link
US (1) US2071651A (fr)
BE (1) BE432220A (fr)
DE (1) DE660150C (fr)
FR (2) FR795166A (fr)
GB (1) GB447013A (fr)

Also Published As

Publication number Publication date
BE432220A (fr) 1900-01-01
FR50178E (fr) 1939-01-17
FR795166A (fr) 1936-03-07
GB447013A (en) 1936-05-11
DE660150C (de) 1938-05-19

Similar Documents

Publication Publication Date Title
US2071651A (en) Process and device for degumming ramie and other similar fibers
EP0371334A3 (fr) Procédé et dispositif de traitement de poils d'animaux, plumes ou fibres végétales
US2407483A (en) Treating fibrous glass
CN109440348A (zh) 一种姜黄植物染黄色纤维的纺纱方法
US1746316A (en) Process for retting textile fibers
US1842024A (en) Process for retting fibers
DE726399C (de) Verfahren und Einrichtung zur Gewinnung von verspinnbaren Fasern aus faserhaltigen Pflanzenstengeln
US1843851A (en) Process of degumming textile plants
US2026584A (en) Method of liberating fibers
US2230269A (en) Process for treatment of vegetable fibers
US642387A (en) Process preparing peat for surgical use.
US396981A (en) Sidney smith boyce
US1355571A (en) Method of treating- flax or similar fiber and products
SU996532A1 (ru) Способ обработки шерсти при подготовке ее к пр дению
US1115500A (en) Process of preparing vegetable fibers.
US1748832A (en) Method of degumming fibers
US1795414A (en) Manufacture of textile fibers
CN109402910A (zh) 一种靛蓝植物染蓝色纤维的纺纱方法
US1959400A (en) Preparing vegetable fibers for spinning
US1619111A (en) Degumming process
US1668694A (en) Method of creping silk fabrics
GB2302552A (en) Use of ultrasonics for winning bast fibres from fibrous vegetable material
US1671786A (en) Method of treating natural silk
US13486A (en) Improvement in preparations of wool-oil
SU369188A1 (ru) Способ промывки волокнистого материала