DE3569135D1 - Non-woven long-fibre sheet product and process for its manufacture - Google Patents
Non-woven long-fibre sheet product and process for its manufactureInfo
- Publication number
- DE3569135D1 DE3569135D1 DE8585401922T DE3569135T DE3569135D1 DE 3569135 D1 DE3569135 D1 DE 3569135D1 DE 8585401922 T DE8585401922 T DE 8585401922T DE 3569135 T DE3569135 T DE 3569135T DE 3569135 D1 DE3569135 D1 DE 3569135D1
- Authority
- DE
- Germany
- Prior art keywords
- fibres
- dose
- polyelectrolyte
- greasing
- hydrated
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/06—Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/1254—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which have been treated to improve their dispersion in the paper-making furnish
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/02—Roof covering by making use of flexible material, e.g. supplied in roll form of materials impregnated with sealing substances, e.g. roofing felt
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
- Nonwoven Fabrics (AREA)
Abstract
1. Method for manufacturing a suspension of long fibres usable in a paper machine, these fibres having a length of at least 12-18-24-30 or 34 mm respectively for sizes of 1.7-3.3-4.4-6.7 or 11 decitex, characterized in that it comprises the following steps : a) in a first water dose, a first dose of first greased long fibres is suspended and a first dose of a first polyelectrolyte having a high molecular weight and the same ionic character as the hydrated greasing of said first fibres is added thereto, the weight proportion of said first polyelectrolyte being comprised between 0,2 and 0,5 % of the weight of said first fibres ; b) after stabilization of the suspension formed under a), a second water dose is added thereto and then a second dose of second long fibres, the hydrated greasing of which has the same ionic character as that of said first fibres, as well as a second dose of a second polyelectrolyte having a high molecular weight and the same ionic character as the hydrated greasing of said second fibres, the cumulated weight proportion of the first and second polyelectrolytes with respect to the cumulated weight of said first and second fibres remaining within the same range as that of said first polyelectrolyte with respect to said first fibres ; c) the manufacturing of said suspension of long fibres is carried on up to the nths adding to the cumulated suspension containing the (n-1)th first fibres, a nth water dose and then a nth dose of nth long fibres, the hydrated greasing of which has the same ionic character as that of the (n-1)th fibres, as well as a nth dose of a nth polyelectrolyte having a high molecular weight and the same ionic character as the hydrated greasing of said (n-1)th fibres, the cumulated weight proportion of the n polyelectrolytes with respect to the cumulated weight of said n fibres remaining within the same range as that of the first polyelectrolyte with respect to said first fibres.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8415315A FR2571388B1 (en) | 1984-10-05 | 1984-10-05 | NON WOVEN PRODUCT IN LONG FIBER SHEET AND ITS MANUFACTURING PROCESS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3569135D1 true DE3569135D1 (en) | 1989-05-03 |
Family
ID=9308380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585401922T Expired DE3569135D1 (en) | 1984-10-05 | 1985-10-02 | Non-woven long-fibre sheet product and process for its manufacture |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0177425B1 (en) |
AT (1) | ATE41794T1 (en) |
DE (1) | DE3569135D1 (en) |
FR (1) | FR2571388B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8621680D0 (en) * | 1986-09-09 | 1986-10-15 | Du Pont | Filler compositions |
DE9210235U1 (en) * | 1992-07-30 | 1992-10-29 | Ems-Inventa AG, Zürich | Nonwovens for paper machine felts made from synthetic fibres |
CN113201863B (en) * | 2021-04-06 | 2022-04-22 | 武汉纺织大学 | Manufacturing device and process of adsorption antibacterial non-woven fabric for medical protective clothing |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198232A (en) * | 1938-11-15 | 1940-04-23 | Shopneck Henry Philip | Process of manufacturing a waterlaid felt |
US3102838A (en) * | 1960-02-23 | 1963-09-03 | John A Manning Paper Company I | Fiber treatment and resulting product |
NL133247C (en) * | 1967-05-18 | |||
DE2110599B2 (en) * | 1971-03-05 | 1978-04-27 | Schuller, Werner Hugo Wilhelm, 8022 Gruenwald | Process for the production of a glass fiber fleece by the wet fleece process |
US4129674A (en) * | 1972-10-27 | 1978-12-12 | Johns-Manville Corporation | Fibrous mat especially suitable for roofing products and a method of making the mat |
FR2410084A1 (en) * | 1977-11-23 | 1979-06-22 | Arjomari Prioux | CELLULOSIC PRODUCT, ITS PREPARATION PROCESS AND ITS APPLICATION, ESPECIALLY IN THE FIELD OF COATING PANELS AS A REPLACEMENT FOR ASBESTOS |
US4245689A (en) * | 1978-05-02 | 1981-01-20 | Georgia Bonded Fibers, Inc. | Dimensionally stable cellulosic backing web |
FR2435554A1 (en) * | 1978-09-08 | 1980-04-04 | Dalle & Lecomte Papeteries | HIGH-LOAD PAPER PRODUCT |
SU962399A1 (en) * | 1981-03-31 | 1982-09-30 | Центральный научно-исследовательский институт бумаги | Cutting apparatus |
-
1984
- 1984-10-05 FR FR8415315A patent/FR2571388B1/en not_active Expired
-
1985
- 1985-10-02 AT AT85401922T patent/ATE41794T1/en not_active IP Right Cessation
- 1985-10-02 DE DE8585401922T patent/DE3569135D1/en not_active Expired
- 1985-10-02 EP EP85401922A patent/EP0177425B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE41794T1 (en) | 1989-04-15 |
FR2571388A1 (en) | 1986-04-11 |
FR2571388B1 (en) | 1987-01-16 |
EP0177425A1 (en) | 1986-04-09 |
EP0177425B1 (en) | 1989-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |