FR2722803A1 - INSULATING MATTRESS MADE OF FIBROUS MATERIAL IMPREGNATED WITH AN INSULATING PRODUCT - Google Patents
INSULATING MATTRESS MADE OF FIBROUS MATERIAL IMPREGNATED WITH AN INSULATING PRODUCT Download PDFInfo
- Publication number
- FR2722803A1 FR2722803A1 FR9508318A FR9508318A FR2722803A1 FR 2722803 A1 FR2722803 A1 FR 2722803A1 FR 9508318 A FR9508318 A FR 9508318A FR 9508318 A FR9508318 A FR 9508318A FR 2722803 A1 FR2722803 A1 FR 2722803A1
- Authority
- FR
- France
- Prior art keywords
- mattress
- primary
- insulating
- impregnating agent
- impregnation
- 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.)
- Granted
Links
- 239000002657 fibrous material Substances 0.000 title abstract description 3
- 239000003595 mist Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 238000005470 impregnation Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 7
- 241000238631 Hexapoda Species 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000003223 protective agent Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 7
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 239000000443 aerosol Substances 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000009960 carding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004534 enameling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
- D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
-
- 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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/06—Processes in which the treating agent is dispersed in a gas, e.g. aerosols
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/743—Animal products, e.g. wool, feathers
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
L'invention a pour objet un matelas isolant constitué d'un matériau fibreux imprégné d'un produit isolant.Le produit isolant est projeté sous forme d'un brouillard de fines gouttelettes, de manière à assurer une bonne pénétration dans le matelas tout en facilitant son séchage.The subject of the invention is an insulating mattress made of a fibrous material impregnated with an insulating product. The insulating product is sprayed in the form of a mist of fine droplets, so as to ensure good penetration into the mattress while facilitating its drying.
Description
I L'invention concerne un matelas isolant ainsi qu'un procédé pourI The invention relates to an insulating mattress and a method for
fabriquer un matelas isolant et notamment pour fabriquer un matelas isolant imprégné. L'expression "matelas isolant" recouvre tous les matériaux isolants qui présentent une forme définie - au contraire d'un produit en vrac manufacture an insulating mattress and in particular for manufacturing an impregnated insulating mattress. The expression "insulating mat" covers all insulating materials which have a defined shape - unlike a loose product
désagrégé, des liquides ou analogues. disaggregated, liquids or the like.
De tels matelas isolants (panneaux isolants) à base de fibres minérales sont connus depuis de nombreuses années dans l'état de la Such insulating blankets (insulating panels) based on mineral fibers have been known for many years in the state of the art.
technique et ont fait leurs preuves dans la construction. technical and have proven themselves in construction.
Récemment, on trouve également de plus en plus des matériaux isolants à base de fibres végétales ou animales. Les problèmes concernent alors leur comportement en protection contre le feu ainsi que leur résistance biologique. Les produits isolants constitués des matériaux fibreux cités doivent de ce fait être pourvus d'une imprégnation correspondante, dans la mesure o ils doivent satisfaire à des exigences déterminées concernant le comportement de protection contre le feu, respectivement concernant la Recently, we also find more and more insulating materials based on plant or animal fibers. The problems then relate to their behavior in protection against fire as well as their biological resistance. Insulation products made of the aforementioned fibrous materials must therefore be provided with a corresponding impregnation, insofar as they must meet specific requirements concerning the fire protection behavior, respectively concerning the
résistance face à une attaque biologique, par exemple par des insectes. resistance to biological attack, for example by insects.
La mobilité des insectes nécessite que l'agent d'imprégnation soit réparti aussi régulièrement que possible dans le volume du produit. Pour cela, il est connu d'asperger le matelas isolant correspondant avec l'agent d'imprégnation ou de préparer l'agent d'imprégnation pour obtenir un produit alvéolaire et l'appliquer sur le matelas isolant. Du fait de la faible tendance à la pénétration, ces techniques ne peuvent être utilisées que sur des matelas très minces; lorsque l'on a faire à des matelas plus épais, on The mobility of insects requires that the impregnating agent be distributed as regularly as possible in the volume of the product. For this, it is known to spray the corresponding insulating mat with the impregnating agent or to prepare the impregnating agent to obtain a cellular product and apply it to the insulating mat. Due to the low penetration tendency, these techniques can only be used on very thin mattresses; when we have thicker mattresses, we
n'obtient pratiquement qu' une imprégnation dans la zone de la surface qui - practically only impregnates in the area of the surface which -
comme indiqué - s'avère insuffisante. Aux interfaces ou aux points de découpage (lors de la suite du traitement) apparaissent des lacunes as shown - is insufficient. At the interfaces or at the cutting points (during further processing), gaps appear
d'imprégnation" supplémentaires."additional impregnation.
En principe, une imprégnation dans la masse, par exemple par immersion d'un matelas isolant dans un bain d'imprégnation serait possible à réaliser. Un tel procédé serait cependant très coûteux et le matelas isolant devrait ensuite être de nouveau séché, au prix d'une dépense en énergie considérable. L'imprégnation dans la masse souhaitée peut en principe être également obtenue en traitant les flocons (par exemple issus de coton, de lin ou de laine de mouton) avant le processus de cardage (donc avant la formation du matelas primaire). L'inconvénient essentiel rencontré dans ce procédé est que le matériau isolant est exposé pendant le processus de cardage à une sollicitation mécanique notable. Des essais ont montré qu'en faisant cela, on obtenait une nouvelle séparation mécanique, allant jusqu'à %, de l'agent d'imprégnation. On obtient comme résultat un matelas isolant ayant une imprégnation totalement insuffisante. Simultanément les In principle, impregnation in the mass, for example by immersion of an insulating mattress in an impregnation bath would be possible to achieve. Such a process would however be very expensive and the insulating blanket would then have to be dried again, at the cost of considerable energy expenditure. Impregnation in the desired mass can in principle also be obtained by treating the flakes (for example from cotton, linen or sheep's wool) before the carding process (therefore before the formation of the primary mattress). The essential drawback encountered in this process is that the insulating material is exposed during the carding process to a significant mechanical stress. Tests have shown that by doing this, a new mechanical separation, of up to%, of the impregnating agent is obtained. The result is an insulating mattress with totally insufficient impregnation. Simultaneously the
installations sont souillées par l'agent d'imprégnation qui s'est séparé. installations are soiled by the impregnating agent who has separated.
C'est pourquoi l'invention a pour but d'offrir un matelas isolant qui présente une répartition de l'agent d'imprégnation conférant au produit, sur la totalité de son volume, des propriétés plus ou moins égales et qui puisse This is why the invention aims to provide an insulating mattress which has a distribution of the impregnating agent giving the product, over its entire volume, more or less equal properties and which can
être fabriqué suivant un procédé aussi simple que possible. be made using as simple a process as possible.
L'invention a alors pour base les connaissances suivantes: en partant d'un procédé connu, dans lequel des fibres (flocons) sont d'abord préparées en un matelas primaire et ensuite retraitées par façonnage du matelas primaire en un matelas secondaire, I'invention prévoit à présent de soumettre le matelas primaire à un traitement d'imprégnation avant façonnage en matelas secondaire, I'agent d'imprégnation étant de préférence pulvérisé sous forme liquide, comme un brouillard, sur au moins une face du matelas primaire. Une variante d'application de l'agent d'application se distingue par le fait qu'un produit alvéolaire d'imprégnation est appliqué sur le matelas primaire et ainsi également sur une profondeur The invention then has as a basis the following knowledge: starting from a known process, in which fibers (flakes) are first prepared in a primary mattress and then reprocessed by shaping the primary mattress into a secondary mattress, I ' The invention now provides for subjecting the primary mattress to an impregnation treatment before shaping into a secondary mattress, the impregnating agent preferably being sprayed in liquid form, like a mist, on at least one face of the primary mattress. A variant application of the application agent is distinguished by the fact that a cellular impregnation product is applied to the primary mattress and thus also to a depth
déterminée à l'intérieur du matelas primaire. determined inside the primary mattress.
Le procédé à l'aide duquel l'agent d'imprégnation est appliqué sur le matelas primaire constitue alors une idée tout à fait essentielle de l'invention. Les procédés de pulvérisation antérieurs, à l'aide desquels par exemple on asperge un liant sur des fibres, présentent un diamètre de gouttelettes relativement grand. Un procédé d'imprégnation correspondant devrait mener à ce que le matelas primaire ne soit imprégné que partiellement. La figure 1 annexée représente de façon fortement schématisée une surface de fibre sur laquelle sont disposées - à grande distance les unes des autres - des gouttelettes d'imprégnation individuelles, qui donnent après un The process by which the impregnating agent is applied to the primary mattress then constitutes a completely essential idea of the invention. The previous spraying methods, with the aid of which for example a binder is sprayed on fibers, have a relatively large droplet diameter. A corresponding impregnation process should lead to the primary mattress being only partially impregnated. The appended FIG. 1 represents in a highly diagrammatic manner a surface of fiber on which are arranged - at great distance from each other - individual impregnation droplets, which give after a
processus de séchage un revêtement d'imprégnation correspondant. drying process a corresponding impregnation coating.
L'invention prévoit par contre d'asperger le produit d'imprégnation sous forme liquide, sous forme de brouillard, et de traiter l'agent d'imprégnation donc sous la forme d'un aérosol. De cette manière, on guide des particules liquides très fines dans un gaz vecteur correspondant (en général de l'air) sur le matelas primaire et le brouillard peut alors se déposer non seulement sur la face voisine du dispositif de pulvérisation du matelas primaire, mais également, d'une manière particulièrement avantageuse, dans la "structure lâche et poreuse" du matelas primaire et s'y répandre par réticulation sur les fibres individuelles. Un aspect tout à fait important est en plus le fait que les différentes particules de liquide sont nettement plus i 5 petites que ce que l'on a avec un procédé d'aspersion classique, comme l'exprime le concept de "brouillard", respectivement "d'aérosol", de sorte que l'effet final est d'avoir de petites gouttelettes de liquide très fines, directement les unes à côté des autres, se déposant sur les surfaces correspondantes des fibres, comme on l'a représenté sous une forme très The invention, on the other hand, provides for spraying the impregnation product in liquid form, in the form of a mist, and for treating the impregnating agent therefore in the form of an aerosol. In this way, very fine liquid particles are guided in a corresponding carrier gas (generally air) on the primary mattress and the mist can then be deposited not only on the neighboring face of the spray device of the primary mattress, but also, in a particularly advantageous manner, in the “loose and porous structure” of the primary mattress and spreading there by crosslinking on the individual fibers. A very important aspect is the fact that the different particles of liquid are much smaller than what is obtained with a conventional spraying process, as expressed by the concept of "mist", respectively. "aerosol", so that the final effect is to have small very fine droplets of liquid, directly next to each other, depositing on the corresponding surfaces of the fibers, as shown under a very form
schématisée sur la figure 2.shown schematically in Figure 2.
Bien que l'on ait pulvérisé des particules de liquide individuelles, on obtient comme effet final - après séchage - un revêtement d'imprégnation à peu près fermé qui est nettement supérieur, de manière correspondante, également pour son efficacité à ce que donne le procédé selon l'état de la Although individual liquid particles have been sprayed, the final effect - after drying - is a roughly closed impregnation coating which is correspondingly superior, also in terms of its effectiveness to the process. according to the state of the
technique.technical.
Les particules de liquide qui sont beaucoup plus petites et sont appliquées par le brouillard de pulvérisation sur le matelas primaire présentent l'avantage supplémentaire qu'elles peuvent être séchées beaucoup plus rapidement, de sorte que l'on peut éviter les problèmes se posant lors de la suite du traitement. Ceci vaut en particulier pour le retraitement du matelas primaire en matelas secondaire. Si on utilise ici, par exemple, un organe pendulaire comme c'est connu par le brevet européen 0 528 348 A1, le matelas primaire doit alors être séché plus ou moins, du fait qu'autrement il adhérerait sur les surfaces des bandes transporteuses de The particles of liquid which are much smaller and are applied by the spray mist to the primary mattress have the additional advantage that they can be dried much more quickly, so that the problems arising during following treatment. This applies in particular to the reprocessing of the primary mattress into a secondary mattress. If a pendulum member is used here, for example, as is known from European patent 0 528 348 A1, the primary mattress must then be more or less dried, since otherwise it would adhere to the surfaces of the conveyor belts.
l'organe pendulaire.the pendulum organ.
La tension superficielle de l'aérosol peut également être réglée de manière que s'établissent sur les fibres individuelles des sections de revêtement ayant de plus grandes surfaces, comme ceci est représenté schématiquement sur la figure 3. Une image de revêtement analogue est obtenue également lorsque l'agent d'imprégnation est appliqué sous forme de mousse ou de produit alvéolaire. Ceci peut se faire sous pression mais The surface tension of the aerosol can also be adjusted so that coating sections with larger areas are established on the individual fibers, as shown schematically in Figure 3. A similar coating image is also obtained when the impregnating agent is applied in the form of a foam or a cellular product. This can be done under pressure but
également sous vide (par le dessous). also under vacuum (from below).
Au moyen du nouveau procédé décrit, on peut soit renoncer complètement à avoir un poste de séchage séparé (parce qu'un séchage à l'air du matelas primaire sur le chemin de la suite du traitement en matelas secondaire est déjà suffisant) soit avoir un poste de séchage beaucoup plus i 5 court et beaucoup plus simple, du fait que l'on doit sécher des particules de By means of the new process described, one can either completely give up having a separate drying station (because air drying of the primary mattress on the way to the continuation of the treatment in secondary mattress is already sufficient) or have a much shorter and much simpler drying station, owing to the fact that particles of
liquide beaucoup plus petites.much smaller liquid.
Selon une forme de réalisation, il est prévu, de manière correspondante, que le matelas primaire soit séché après traitement According to one embodiment, it is provided, correspondingly, that the primary mattress is dried after treatment.
d'imprégnation, mais avant la suite du traitement. impregnation, but before further treatment.
La suite du traitement peut alors être effectuée par un organe pendulaire, comme ceci est décrit en détail dans le brevet européen The rest of the treatment can then be carried out by a pendulum member, as described in detail in the European patent.
0528 348 A1.0528 348 A1.
De préférence le traitement d'imprégnation s'effectue pour un matelas primaire (voile non tissé) avec un poids surfacique compris entre 30 et 90 g/m2. Des essais ont montré que, lorsque l'on avait des matelas ayant un tel poids volumique, on pouvait avoir une imprégnation dans la masse pratiquement complète du matelas primaire et, ainsi également, du Preferably, the impregnation treatment is carried out for a primary mattress (non-woven veil) with a surface weight of between 30 and 90 g / m2. Tests have shown that, when mattresses having such a specific weight were had, one could have an impregnation in the practically complete mass of the primary mattress and, thus also, of the
matelas isolant constitué à partir du matelas primaire. insulating mattress made from the primary mattress.
Du fait que l'agent d'imprégnation est appliqué par l'extérieur, on obtient obligatoirement une concentration de l'agent de revêtement qui va en observant dans différents plans perpendiculairement à la direction de pulvérisation) en augmentant lorsque l'on évolue dans la direction de pulvérisation. Ceci conduit au résultat d'un matelas isolant constitué d'un matelas secondaire formé par pliage multiple d'un matelas primaire et pour lequel le matelas de fibre primaire présente au moins sur une face un revêtement Due to the fact that the impregnating agent is applied from the outside, a concentration of the coating agent must be obtained which is observed while observing in different planes (perpendicular to the spraying direction), increasing as one moves in the spray direction. This leads to the result of an insulating mattress consisting of a secondary mattress formed by multiple folding of a primary mattress and for which the primary fiber mattress has at least on one side a coating.
d'un agent d'imprégnation comme ceci fait l'objet de la revendication 1. an impregnating agent as is the subject of claim 1.
Le terme "sur une face" signifie que le matelas primaire prend, après le traitement en matelas secondaire et le compactage subséquent, une "forme plate", dans laquelle, de manière correspondante aux explications The term "on one side" means that the primary mattress takes on, after the secondary mattress treatment and subsequent compaction, a "flat shape", in which, in accordance with the explanations
données ci-dessus, la concentration en agent d'imprégnation est maximale. given above, the concentration of impregnating agent is maximum.
Le matelas isolant, construit à partir des différentes couches (matelas primaire) est imprégné par la technique du procédé décrit, de façon continue, de sorte que - selon l'agent d'imprégnation - on peut aussi bien obtenir des classes de protection contre le feu que satisfaire des exigences The insulating mat, constructed from the different layers (primary mat) is impregnated by the technique of the process described, continuously, so that - depending on the impregnating agent - it is also possible to obtain protection classes against fire that meet requirements
élevées en matière de résistance aux insectes. high in terms of insect resistance.
Naturellement, le matelas primaire peut également être aspergé sur les deux faces faisant que l'on peut augmenter surtout la concentration de l'agent d'imprégnation. Ici également, cependant, la concentration rapportée au volume, en agent d'imprégnation du matelas primaire va toujours en diminuant de l'extérieur vers l'intérieur et, en tous cas, on a dans la zone médiane une certaine surconcentration dans la mesure ou l'imprégnation Of course, the primary mattress can also be sprayed on both sides so that the concentration of the impregnating agent can be increased above all. Here again, however, the concentration in relation to the volume of impregnating agent for the primary mattress always decreases from the outside to the inside and, in any case, there is in the median zone a certain over-concentration in the measure or impregnation
s'effectue des deux côtés.is done on both sides.
Si l'agent d'imprégnation est pulvérisé sous forme de brouillard, les différentes phases d'imprégnation (après séchage) - comme le montre schématiquement la figure 2 - peuvent être très petites et, selon une forme de réalisation, avoir une surface inférieure à 0,1 mm2, de préférence inférieure à 0,01 mm2. Le diamètre de gouttelette correspondant devrait, de manière correspondante, être inférieur au diamètre moyen des fibres afférentes. La forte concentration des particules de liquide dans le brouillard conduit au résultat que l'espacement entre des gouttelettes de liquide individuelles, respectivement après séchage, les phases d'imprégnation soient très petites, ou que l'on obtienne des phases de revêtement plus petites, cohérentes, constituées de gouttelettes individuelles, et que l'on obtienne, lorsque l'on observe depuis l'extérieur, un revêtement If the impregnating agent is sprayed as a mist, the different impregnation phases (after drying) - as shown schematically in Figure 2 - can be very small and, according to one embodiment, have an area less than 0.1 mm2, preferably less than 0.01 mm2. The corresponding droplet diameter should correspondingly be less than the average diameter of the afferent fibers. The high concentration of liquid particles in the mist leads to the result that the spacing between individual liquid droplets, respectively after drying, the impregnation phases are very small, or that smaller coating phases are obtained, consistent, made up of individual droplets, and which, when viewed from the outside, provides a coating
d'imprégnation à peu près continu. of almost continuous impregnation.
Le diamètre moyen des gouttelettes est, selon l'invention, inférieur d'au moins une puissance de 10 à ce que l'on a avec le procédé According to the invention, the average droplet diameter is at least 10 times less than what is obtained with the process
comparable, tel qu'évoqué ci-dessus. comparable, as discussed above.
Par une modification de la tension superficielle de l'agent d'imprégnation se présentant sous forme d'aérosol, on peut revêtir les différentes fibres également en surface, comme représenté. L'effet visé By modifying the surface tension of the impregnating agent in the form of an aerosol, the various fibers can also be coated on the surface, as shown. The intended effect
reste de ce fait inchangé.therefore remains unchanged.
Des essais ont montré que, par la modification décrite du type de pulvérisation, la quantité d'agent d'imprégnation peut être réduite jusqu'à diminuer d'à peu près 90 % par rapport au procédé d'imprégnation connu, tout en obtenant les mêmes résultats. Des dispositifs de pulvérisation à I'aide desquels des liquides peuvent être pulvérisés en brouillard (ce sont ici des agents d'imprégnation liquides), sont connus dans l'état de la technique, cependant, ils sont destinés à d'autres applications, par exemple pour la peinture ou pour l'émaillage de parties céramiques. Le liquide pulvérisé est alors décomposé dans la tête de pulvérisation, en donnant de très fines gouttelettes qui sont ensuite déposées sur les fibres et mènent à Tests have shown that, by the described modification of the type of spraying, the quantity of impregnating agent can be reduced until decreasing by approximately 90% compared to the known impregnation method, while obtaining the same results. Spray devices with which liquids can be sprayed as a mist (these are liquid impregnating agents) are known in the art, however, they are intended for other applications, for example example for painting or for enameling ceramic parts. The sprayed liquid is then broken down in the spray head, giving very fine droplets which are then deposited on the fibers and lead to
cet endroit à un genre de "tapis dense" (ce que l'on appelle le procédé "air- this place to a kind of "dense carpet" (what is called the process "air-
brush").brush ").
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4425472A DE4425472C2 (en) | 1994-07-19 | 1994-07-19 | Insulating mat and method for producing an insulating mat |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2722803A1 true FR2722803A1 (en) | 1996-01-26 |
FR2722803B1 FR2722803B1 (en) | 1999-01-15 |
Family
ID=6523552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9508318A Expired - Fee Related FR2722803B1 (en) | 1994-07-19 | 1995-07-11 | INSULATING MATTRESS MADE OF FIBROUS MATERIAL IMPREGNATED WITH AN INSULATING PRODUCT |
Country Status (2)
Country | Link |
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DE (1) | DE4425472C2 (en) |
FR (1) | FR2722803B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19513815C2 (en) * | 1995-04-12 | 1998-02-19 | Schiller & Partner Gmbh Ingeni | Device for producing finished nonwovens |
DE19608647C1 (en) * | 1996-03-06 | 1997-10-23 | Jens Bretthauer | Light fleecy insulating board is made from low strength stacked webs |
FR2759388B1 (en) * | 1997-02-10 | 1999-04-30 | Achille Duflot | METHOD AND INSTALLATION FOR FIXING PARTICLES TO THE SURFACE FIBERS OF A FIBER TABLECLOTH, FIBER TABLETED MATERIAL AND ARTICLE COMPRISING SUCH A TABLECLOTH |
DE19807821C2 (en) * | 1998-02-26 | 2003-11-13 | Jps Int Ab Goeteborg | Process for producing an insulating material from plant fibers |
FR2848577B1 (en) * | 2002-12-12 | 2005-03-04 | Sarl Valanga | PROCESS FOR THE TREATMENT OF NATURAL VEGETABLE FIBERS, IN PARTICULAR FOR THE USE OF THESE FIBERS FOR THE INSULATION OF BUILDINGS |
ITBZ20040016A1 (en) * | 2004-04-13 | 2004-07-13 | Johann Lang | INSULATING PANEL IN SHEEP WOOL AND PROCEDURE FOR ITS REALIZATION. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB930543A (en) * | ||||
DE1435101A1 (en) * | 1957-07-25 | 1968-10-24 | Glover Benjamin Marshall | Process for the manufacture of a textile product |
GB1252932A (en) * | 1968-08-21 | 1971-11-10 | ||
EP0277397A1 (en) * | 1987-01-27 | 1988-08-10 | Rockwool Lapinus B.V. | Grow-mat for cultivating plants and a method for manufacturing same |
WO1989004886A1 (en) * | 1987-11-25 | 1989-06-01 | Maxwell Victor Lane | Bonded fibrous insulation batt |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2088396A1 (en) * | 1970-05-07 | 1972-01-07 | Fiberglas Canada Ltd | Slag wool carpeting or felt |
DE2845112C3 (en) * | 1978-10-17 | 1981-11-05 | Casimir Kast Gmbh & Co Kg, 7562 Gernsbach | Process and plant for the production of mats from cellulosic fibers and process for the production of molded parts from these |
DD244271A3 (en) * | 1984-07-25 | 1987-04-01 | Zementind Rationalisierung | METHOD FOR FORMING A MINERAL WOOL LIP |
DE4127172C2 (en) * | 1991-08-16 | 1995-02-02 | Heraklith Baustoffe Ag | Device for applying fleece, in particular mineral wool fleece, to a support belt |
DE4142438A1 (en) * | 1991-12-20 | 1993-06-24 | Baehre & Greten | PLATE AND METHOD FOR THE PRODUCTION THEREOF |
-
1994
- 1994-07-19 DE DE4425472A patent/DE4425472C2/en not_active Expired - Fee Related
-
1995
- 1995-07-11 FR FR9508318A patent/FR2722803B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB930543A (en) * | ||||
DE1435101A1 (en) * | 1957-07-25 | 1968-10-24 | Glover Benjamin Marshall | Process for the manufacture of a textile product |
GB1252932A (en) * | 1968-08-21 | 1971-11-10 | ||
EP0277397A1 (en) * | 1987-01-27 | 1988-08-10 | Rockwool Lapinus B.V. | Grow-mat for cultivating plants and a method for manufacturing same |
WO1989004886A1 (en) * | 1987-11-25 | 1989-06-01 | Maxwell Victor Lane | Bonded fibrous insulation batt |
Also Published As
Publication number | Publication date |
---|---|
DE4425472C1 (en) | 1996-01-18 |
DE4425472C2 (en) | 2000-07-13 |
FR2722803B1 (en) | 1999-01-15 |
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