GB1017020A - Process for the production of non-woven fibrous structures - Google Patents

Process for the production of non-woven fibrous structures

Info

Publication number
GB1017020A
GB1017020A GB26186/64A GB2618664A GB1017020A GB 1017020 A GB1017020 A GB 1017020A GB 26186/64 A GB26186/64 A GB 26186/64A GB 2618664 A GB2618664 A GB 2618664A GB 1017020 A GB1017020 A GB 1017020A
Authority
GB
United Kingdom
Prior art keywords
solution
support
precipitant
polymer
fluid
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
Application number
GB26186/64A
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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 Rhodiaceta SA filed Critical Rhodiaceta SA
Publication of GB1017020A publication Critical patent/GB1017020A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/06Wet spinning methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00Other non-woven fabrics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A non-woven fibrous structure is made by forming a layer of a solution of a fibre-forming polymer on the surface of a temporary support containing perforations corresponding to the size of the fibres desired, forcing the said solution through the said perforations with a fluid which precipitates the polymer from the solution, and separating the non-woven fibrous polymer structure thus formed from the support. Specified polymers include polyamides, polyesters, polyacrylonitrile and its copolymers, polyolefins, cellulose acetate, including the triacetate, regenerated cellulose, and mixtures thereof. Specified solutions include a solution of polyethylene terphthalate in a mixture of equal parts by weight of phenol and 1, 2-dichloroethane, the precipitant being methyl alcohol, a solution of cellulose triacetate in a mixture of 4 parts by weight methylene chloride and 1 part by weight of ethyl alcohol, the precipitant being methyl alcohol, and a solution of a polyamide, e.g. polycoprolactam or polyhexamethylene adipamide, in formic acid, the precipitant being water. Pigments or dyestuffs may be added to the polymer solution. A metal cloth of mesh size 0.1 to 2mm. forms a suitable temporary support, and desirably the precipitant fluid moves at a speed of 0.25 to 2m./sec. with respect to the support carrying the layer of the polymer solution in a direction perpendicular to the surface of the support. This may be effected either by passing a jet of precipitating fluid through the coated support or by immersing the coated support in the precipitating fluid and moving it therein in the direction in which it offers the maximum resistance to its advance. The structures formed may be isolated by collection in a water bath so as to eliminate the included precipitating fluid, and, after drying, are either used directly or calendered, optionally after im impregnation with a conventional binder, e.g. a solution of a linear polyurethane in tetrahydrofuran.
GB26186/64A 1963-06-24 1964-06-24 Process for the production of non-woven fibrous structures Expired GB1017020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR939141A FR1370674A (en) 1963-06-24 1963-06-24 Process for the preparation of a fibrous structure and product obtained according to this process

Publications (1)

Publication Number Publication Date
GB1017020A true GB1017020A (en) 1966-01-12

Family

ID=8806775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26186/64A Expired GB1017020A (en) 1963-06-24 1964-06-24 Process for the production of non-woven fibrous structures

Country Status (9)

Country Link
US (1) US3342919A (en)
AT (1) AT257813B (en)
BE (1) BE649642A (en)
CH (1) CH418285A (en)
DE (1) DE1469468A1 (en)
FR (1) FR1370674A (en)
GB (1) GB1017020A (en)
LU (1) LU46380A1 (en)
NL (1) NL6407151A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670069A (en) * 1969-09-15 1972-06-13 Itt Process for forming hydroxyethyl cellulose fibers having high water absorption and high water retention properties

Also Published As

Publication number Publication date
LU46380A1 (en) 1972-01-01
CH418285A (en) 1966-08-15
AT257813B (en) 1967-10-25
US3342919A (en) 1967-09-19
FR1370674A (en) 1964-08-28
DE1469468A1 (en) 1969-01-02
BE649642A (en) 1964-12-23
NL6407151A (en) 1964-12-28

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