GB439046A - A method for making moulded articles from impregnated fibrous materials - Google Patents
A method for making moulded articles from impregnated fibrous materialsInfo
- Publication number
- GB439046A GB439046A GB1583134A GB1583134A GB439046A GB 439046 A GB439046 A GB 439046A GB 1583134 A GB1583134 A GB 1583134A GB 1583134 A GB1583134 A GB 1583134A GB 439046 A GB439046 A GB 439046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- impregnated
- moulded
- added
- parts
- 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
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/08—Impregnated or coated fibreboard
Landscapes
- Nonwoven Fabrics (AREA)
- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Moulded articles are produced by aggregating fibres into ductile structures such as sheets &c. by felting or similar operations and impregnating the ductile structures in a dry state with a solution or emulsion of a binding medium so that the binder is incorporated in the individual fibres, the impregnated structures being subsequently dried and moulded between dies with relative displacement of the constituent fibres. The fibres may be of animal, vegetable, or mineral origin, preferably ligno or pecto cellulose with an admixture of asbestos fibre if desired. Before, during, or after the felting operation the fibres are treated to remove oils &c. and uncover the fibre skeleton. The treatment may be a mechanical one, such as is used for textile fibres, or a chemical one with oxidizing or reducing agents &c. After the fibres have been felted and dried, small pieces are punched out of the sheet &c. These are impregnated with a binder such as natural or artificial resin, oil, bitumen, glue, gelatine, cellulose derivatives, rubber &c., in a hot or cold condition, by dipping, spraying, &c. The binding medium may give off gases during the moulding operation or substances may be added which generate gas, such as ammonium carbonate. Alternatively, gas-adsorbing substances such as lime or ferrous oxide may be added. Fillers, such as china clay, talc, wood flour, &c. may be added to the fibrous material and colours may be included in the binder. The impregnated material is dried and then moulded, preferably with the application of heat. The pressing operation may be carried out in stages and metal reinforcements may be embedded in the article. One or more pieces of impregnated material may be used which are smaller than the base of the article to be produced. As an example, 1 part of cotton is mixed with 30 parts of water, to which 10 per cent of soda ash may be added, and the whole is treated for 4-5 hours at a temperature of 50 DEG C. The fibrous material is rinsed and felted and then impregnated with synthetic resin and moulded as previously described. Hemp may be pretreated with a soap solution containing 100 parts by weight of rosin and 25 parts of sodium hydroxide in 1000 parts of water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1583134A GB439046A (en) | 1934-05-28 | 1934-05-28 | A method for making moulded articles from impregnated fibrous materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1583134A GB439046A (en) | 1934-05-28 | 1934-05-28 | A method for making moulded articles from impregnated fibrous materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB439046A true GB439046A (en) | 1935-11-28 |
Family
ID=10066312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1583134A Expired GB439046A (en) | 1934-05-28 | 1934-05-28 | A method for making moulded articles from impregnated fibrous materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB439046A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE900518C (en) * | 1940-12-24 | 1953-12-28 | Dynamit Nobel Ag | Process for the production of wood fiber boards |
US3335827A (en) * | 1964-11-17 | 1967-08-15 | Pellon Corp | Shaped articles and method of producing same |
DE3518304A1 (en) * | 1984-05-30 | 1985-12-05 | Hitachi Zosen Corp., Osaka | High temperature-resistant, non-magnetic material for rollers, and process for its production |
-
1934
- 1934-05-28 GB GB1583134A patent/GB439046A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE900518C (en) * | 1940-12-24 | 1953-12-28 | Dynamit Nobel Ag | Process for the production of wood fiber boards |
US3335827A (en) * | 1964-11-17 | 1967-08-15 | Pellon Corp | Shaped articles and method of producing same |
DE3518304A1 (en) * | 1984-05-30 | 1985-12-05 | Hitachi Zosen Corp., Osaka | High temperature-resistant, non-magnetic material for rollers, and process for its production |
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