WO2014090670A1 - A method of forming a cured mineral fibre product - Google Patents
A method of forming a cured mineral fibre product Download PDFInfo
- Publication number
- WO2014090670A1 WO2014090670A1 PCT/EP2013/075607 EP2013075607W WO2014090670A1 WO 2014090670 A1 WO2014090670 A1 WO 2014090670A1 EP 2013075607 W EP2013075607 W EP 2013075607W WO 2014090670 A1 WO2014090670 A1 WO 2014090670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- web
- base layer
- top layer
- cured
- mineral
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
- D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
Definitions
- the present invention relates to a method of forming a cured mineral fibre product. From e.g. WO 95/20708 and WO 2008/155401 it is well known to form a primary web of mineral fibres which are produced from a melt of mineral material and where the primary web is laid out on a secondary web by a pendulum conveyor. The secondary web is then processed to form a multi-layered mineral fibre product with a base layer and at least a top layer having a higher density than the base layer.
- WO 2008/155401 there is described a method where the top layer is separated from the secondary web after the compression of the web in a "peel off-like manner, i.e. splitting the web in the thickness direction by means of a horizontal knife.
- the base layer on the secondary web is then cured and the separated top layer is then later re-joined with the mineral fibre web to form a multi-layered product, such as a sandwich or dual density product.
- the uncured top layer web is compressed by at least 50 % upon entry into the curing oven.
- the base layer which is cured when the uncured top layer is laminated onto the base layer, may act as a backing layer and therefore the entry into the curing oven can be used as a compression zone for the uncured top layer.
- the fibre orientation of the top layer is substantially horizontal.
- the fibre orientation of the base layer is preferably substantially vertical, i.e. substantially in the direction of the compression of the top layer, since this increases the compression strength of the base layer.
- the vertical fibre orientation of the base layer is achieved by cutting the cured base layer web into lamellae, which are turned 90° and reassembled to form the base layer web with a vertical fibre orientation. This provides the final dual density product with additional compression strength just as this ensures an enhanced backing layer when the top layer is compressed.
- the vertical fibre orientation of the base layer is achieved by pleating a mineral fibre web.
- the top layer may be provided with a density of two to three times the density of the base layer.
- Fig . 1 is a schematic illustration of a process of making a mineral fibre product according to the prior art
- Fig . 2 is a detailed schematic side view of an embodiment of the invention.
- a mineral melt is fiberised and the fibres collected on a permeable conveyor as an air-laid web (not shown).
- the air laid web 1 is passed on conveyors to a pair of pendulum conveyors 3 which cross-lap the web 1 to form a cross-lapped web 4.
- the cross-lapped web 4 is then passed through sets of rollers 5 to subject the cross-lapped web 4 to height compression and longitudinal compression.
- a horizontal knife is positioned at point 7 which cuts the web 4 in the horizontal plane to separate the web 4 into two layers, the base layer 6 and the covering top layer 2.
- the base layer 6 is cured in a first curing oven 10 and is then cut into lamellae 9 by circular saws 11.
- the lamellae 9 are cut into lengths corresponding to the desired dimensions of the final product by a circular saw 12 and the lamellae are then turned by 90 degrees to form a lamellar base section 14.
- the covering top layer 2 is split into two by cutting the layer in the horizontal plane with a saw 15 to make an upper covering layer and a lower covering layer.
- the upper and lower covering layers are placed on each side of the lamellar base section 14 at point 18 to form a covered lamellar section 20 and subsequently cured in a second curing oven 16.
- Fig . 2 shows the position where the top layer 2 is re-joined to the base layer 6 as the two layers 2, 6 enter the second curing oven 16.
- the base layer 6 is preferably lamellae 9 of mineral fibres having a vertical fibre orientation and already cured before being formed in this configuration .
- the top layer 2 is uncured and it is compressed as it enters into the nip between the upper belt 17 of the curing oven and the cured base layer 6 at the entry into the curing oven 16.
- the thickness of the top layer 2 before it enters the curing oven 16 is J 1 and when the top layer 2 is compressed having entered the curing oven 16 between the belt 17 and the cured base layer 6 the thickness is reduced to T 2 .
- the base layer 6 is cured, and preferably also configured with lamellae having vertically oriented fibres (i.e. fibres oriented in the direction of the compression of the top layer 2), the base layer 6 has a relatively high compression strength and it is therefore the still uncured top layer 2 which is compressed rather than the base layer 6.
- a significant reduction in thickness of the top layer 2 can be achieved .
- An example of an insulating roof product comprises a base layer made of lamellae elements of stone wool provided with a high-density stone wool top layer.
- the product was made to meet requirements of a compression strength of at least 60 kPa. Therefore, the cured lamella base layer with a vertical fibre orientation was made to have a compression strength of at least 60 kPa.
- the cured base layer preferably comprises lamellae with vertical fibre orientation, since this provides high compression strength in the vertical direction and thereby a relatively high compression of the top layer on entry into the curing oven is possible.
- the invention is also applicable when the cured base layer has horizontal fibre direction or any other fibre direction, as long as the relevant process parameters are adjusted to fit this lower compression strength . It should be mentioned that the compression strength is not only dependent on the fibre orientation, but also on the density and binder content.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20170021A RS55583B1 (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
SI201330472A SI2931955T1 (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
CA2894501A CA2894501C (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
US14/648,774 US9889639B2 (en) | 2012-12-11 | 2013-12-05 | Method of forming a cured mineral fibre product |
CN201380064952.3A CN105051278A (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
EP13799568.4A EP2931955B1 (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
EA201591101A EA031337B1 (en) | 2012-12-11 | 2013-12-05 | Method of forming a cured mineral fibre product |
LTEP13799568.4T LT2931955T (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12196426.6 | 2012-12-11 | ||
EP12196426 | 2012-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014090670A1 true WO2014090670A1 (en) | 2014-06-19 |
Family
ID=47500940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/075607 WO2014090670A1 (en) | 2012-12-11 | 2013-12-05 | A method of forming a cured mineral fibre product |
Country Status (10)
Country | Link |
---|---|
US (1) | US9889639B2 (en) |
EP (1) | EP2931955B1 (en) |
CN (1) | CN105051278A (en) |
CA (1) | CA2894501C (en) |
EA (1) | EA031337B1 (en) |
LT (1) | LT2931955T (en) |
PL (1) | PL2931955T3 (en) |
RS (1) | RS55583B1 (en) |
SI (1) | SI2931955T1 (en) |
WO (1) | WO2014090670A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016083368A1 (en) * | 2014-11-24 | 2016-06-02 | Rockwool International A/S | A method of producing a sandwich panel core of mineral wool fibres |
WO2017162955A1 (en) * | 2016-03-24 | 2017-09-28 | Saint-Gobain Isover | Method for manufacturing self-adhesive mineral wool pads |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3564423B2 (en) | 2018-04-30 | 2023-07-12 | Betek Boya ve Kimya Sanayi A.S. | Process for the manufacture of mineral wool panels made of two or more layers having different densities |
CN113574234A (en) * | 2019-02-15 | 2021-10-29 | 洛科威国际有限公司 | Heat and/or sound insulation system for flat roofs or flat pitched roofs of buildings as a waterproof and method for producing a heat and/or sound insulation system as a waterproof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950355A (en) * | 1987-01-21 | 1990-08-21 | Deutsche Rockwool Mineralwoll - Gmbh | Method of and apparatus for manufacturing a mineral fiber insulating web |
WO1994016164A1 (en) * | 1993-01-14 | 1994-07-21 | Rockwool International A/S | A method of producing a mineral fiber-insulating web, a plant for producing a mineral fiber web, and a mineral fiber-insulated plate |
WO1997036035A1 (en) * | 1996-03-25 | 1997-10-02 | Rockwool International A/S | Process and apparatus for the production of a mineral fibreboard |
WO2008155401A1 (en) * | 2007-06-20 | 2008-12-24 | Rockwool International A/S | Mineral fibre product |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK165926B (en) * | 1990-12-07 | 1993-02-08 | Rockwool Int | PROCEDURE FOR THE MANUFACTURE OF INSULATION PLATES COMPOSED BY INVOLVED CONNECTED STABLE MINERAL FIBER ELEMENTS |
DK1266991T3 (en) * | 1994-01-28 | 2012-11-26 | Rockwool Int | A mineral fiber board and a tubular insulating element |
DK0771142T3 (en) * | 1994-07-13 | 1999-11-15 | Rockwool Grodan Bv | Culture medium comprising short mineral wool fibers extending transversely |
DE19834963A1 (en) * | 1998-08-03 | 2000-02-17 | Pfleiderer Daemmstofftechnik G | Device and method for producing mineral wool fleece |
US20050221061A1 (en) * | 2004-04-02 | 2005-10-06 | Toas Murray S | Method and apparatus for forming shiplap edge in air duct board using molding and machining |
PL2826903T3 (en) * | 2007-01-25 | 2023-07-24 | Knauf Insulation | Method of manufacturing mineral fiber insulation product |
AU2008292450B2 (en) * | 2007-08-31 | 2014-11-06 | Kuraray Co., Ltd. | Base material for cushioning and use thereof |
JP5391489B2 (en) * | 2007-12-26 | 2014-01-15 | 旭ファイバーグラス株式会社 | Manufacturing method of inorganic fiber mat |
-
2013
- 2013-12-05 EP EP13799568.4A patent/EP2931955B1/en active Active
- 2013-12-05 WO PCT/EP2013/075607 patent/WO2014090670A1/en active Application Filing
- 2013-12-05 CN CN201380064952.3A patent/CN105051278A/en active Pending
- 2013-12-05 US US14/648,774 patent/US9889639B2/en active Active
- 2013-12-05 RS RS20170021A patent/RS55583B1/en unknown
- 2013-12-05 LT LTEP13799568.4T patent/LT2931955T/en unknown
- 2013-12-05 PL PL13799568T patent/PL2931955T3/en unknown
- 2013-12-05 CA CA2894501A patent/CA2894501C/en active Active
- 2013-12-05 EA EA201591101A patent/EA031337B1/en not_active IP Right Cessation
- 2013-12-05 SI SI201330472A patent/SI2931955T1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950355A (en) * | 1987-01-21 | 1990-08-21 | Deutsche Rockwool Mineralwoll - Gmbh | Method of and apparatus for manufacturing a mineral fiber insulating web |
WO1994016164A1 (en) * | 1993-01-14 | 1994-07-21 | Rockwool International A/S | A method of producing a mineral fiber-insulating web, a plant for producing a mineral fiber web, and a mineral fiber-insulated plate |
WO1997036035A1 (en) * | 1996-03-25 | 1997-10-02 | Rockwool International A/S | Process and apparatus for the production of a mineral fibreboard |
WO2008155401A1 (en) * | 2007-06-20 | 2008-12-24 | Rockwool International A/S | Mineral fibre product |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016083368A1 (en) * | 2014-11-24 | 2016-06-02 | Rockwool International A/S | A method of producing a sandwich panel core of mineral wool fibres |
US10214840B2 (en) | 2014-11-24 | 2019-02-26 | Rockwool International A/S | Method of producing a sandwich panel core of mineral wool fibres |
RU2694377C2 (en) * | 2014-11-24 | 2019-07-12 | Роквул Интернэшнл А/С | Method for production of sandwich panel core of mineral wool fibers |
WO2017162955A1 (en) * | 2016-03-24 | 2017-09-28 | Saint-Gobain Isover | Method for manufacturing self-adhesive mineral wool pads |
FR3049278A1 (en) * | 2016-03-24 | 2017-09-29 | Saint Gobain Isover | METHOD FOR MANUFACTURING SELF-ADHESIVE MINERAL WOOL MATTRESS |
RU2728750C2 (en) * | 2016-03-24 | 2020-07-30 | Сэн-Гобэн Изовер | Method of producing self-adhesive mats from mineral wool |
US10941073B2 (en) | 2016-03-24 | 2021-03-09 | Saint-Gobain Isover | Method for manufacturing self-adhesive mineral wool pads |
Also Published As
Publication number | Publication date |
---|---|
CA2894501A1 (en) | 2014-06-19 |
SI2931955T1 (en) | 2017-04-26 |
EA031337B1 (en) | 2018-12-28 |
PL2931955T3 (en) | 2017-04-28 |
US9889639B2 (en) | 2018-02-13 |
LT2931955T (en) | 2017-03-27 |
EP2931955B1 (en) | 2016-11-23 |
EP2931955A1 (en) | 2015-10-21 |
CA2894501C (en) | 2020-01-14 |
EA201591101A1 (en) | 2015-10-30 |
US20150298449A1 (en) | 2015-10-22 |
CN105051278A (en) | 2015-11-11 |
RS55583B1 (en) | 2017-06-30 |
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