BE482967A - - Google Patents
Info
- Publication number
- BE482967A BE482967A BE482967DA BE482967A BE 482967 A BE482967 A BE 482967A BE 482967D A BE482967D A BE 482967DA BE 482967 A BE482967 A BE 482967A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- artificial leather
- polyamide
- leather
- fibers
- Prior art date
Links
- 229920002647 polyamide Polymers 0.000 claims description 20
- 239000004952 Polyamide Substances 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 17
- 239000002649 leather substitute Substances 0.000 claims description 13
- 239000010985 leather Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 238000004040 coloring Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- -1 coloring matters Substances 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 241000218158 Clematis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- 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
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
-
- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- 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
- D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/645—Impregnation followed by a solidification process
-
- 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
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/125—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyamides
Landscapes
- Textile Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
Procédé pour la fabrication du cuir artificiel.
<EMI ID=1.1>
cuir artificiel où l'on utilise comme matière première des fibres de polyamides ou d'autres fibres, ou, le cas échéant,
une masse fibreuse amorphe,obtenue par la précipitation des
solutions de polyamides. Pour donner aux fibres polyamides
la faculté de se lier entre elles à la façon du feutre, il
faut traiter leur surface par des agents corrosifs, par exemple, par l'acide chlorhydrique. Ce traitement cependant doit
être effectué avac une précaution extraordinaire, surtout
quand il s'agit des fibres minces, pour ne pas détériorer
<EMI ID=2.1>
Selon l'invention, on fabrique un cuir artificiel de grande valeur, caractérisé par une grande perméabilité, une grande flexibilité, solidité et durabilité, en imprégnant la nappe ou le feutre, tendu ou non tendu, des. solutions de polyamides, modifiées par une réaction avec la formaldehyde
et le méthanol par l'immersion, par projection ou par peinture; ou en l'imprégnant des solutions d'autres polyamides ou des
<EMI ID=3.1>
des pigments, des matières colorantes, des charges, des ramol-
<EMI ID=4.1>
nées. Imprégné et séché, la nappe ou le feutre est pressé dans une presse ou entre des cylindres d'une manière connue. L'opération peut être répétée plusieurs fois jusqu'à ce qu'on obtienne une porosité et une épaisseur convenables du cuir artificiel; en projetant une couche plus épaissie de la même solution de polyamides ou une solution semblable sur la même face, on peut obtenir la fleur du cuir artificielle. Lors des opérations subséquentes, le cuir artificiel peut être traité d'une manière habituelle sur des machines d'apprêt
<EMI ID=5.1>
<EMI ID=6.1>
re etc.. Il va sans dire qu'ensuite le cuir peut être verni ou coloré. pour autant que desfibres colorées n'ont pas été utilisées comme matière première.
Appès un certain temps, les polyamides, modifiées
par la formaldéhyde et le méthanol, perdent leur solubilité, leurs autres qualités appropriées restant cependant inchangée^
<EMI ID=7.1>
froides sans que l'uniformité du produit soit réduite. Pour. augmenter l'uniformité du cuir artificiel, on peut le presser) de. préférence, à l'état humide.. Comme matière première de base, on peut utiliser non seulement des fibres de polyamides seules, mais aussi d'autres fibres naturelles ou artificielles.
le cas échéant mélangées. Le produit obtenu possède une flexibilité e;t une solidité augmentées et est très doux à toucher.
Il va sans dire que la nappe ou le feutre peut être apprêté de manière variée; le cas échéant on peut utiliser
<EMI ID=8.1>
nappe avec un tissu léger lequel, après l'imprégnation par une solution de polyamides et après le pressage, s'unit à
<EMI ID=9.1>
forme, de préférence, la base de la.fleur du cuir.
On peut choisir des fibres du même titre ou un mélange de fibres à titre varié. De même la longueur des fibres peut être adaptée conformément au but désiré.
Comme solvant pour le polyamide modifié, les alcools aliphatiques inférieurs ou leurs mélanges sont les plus appropriés. Il va sans dire que même d'autres solvants appropriés peuvent être utilisés.
Le pressage ou le calandrage de la nappe, imprégnée par la solution du polyamide modifié, peut être effectué, le cas échéant,encore avant le séchage complet, et ceci au cas où l'on utilise par exemple des fibres plus. épaisses dont l'élasticité empêche de les presser à une épaisseur désirée.
En modifiant le procédé, de fabrication, on peut obtenir des produits, possédant des qualités différentes, sur-
<EMI ID=10.1>
On utilise 40 parties des fibres coupées (Stapelfaser) de viscoâe, obtenues par la filature à sec, ayant le titre moyen de 15 den., et 60 parties de fibres coupées, obtenues des déchets des fibres de polyamides, du 6-caprolactame polymerise, à titre varié, et on en prépare sur le loup-briseur, une nappe d'une épaisseur voisine de 4 cm sur laquelle ensuite on fait projeter, des deux cotés, une solution d'une partie
<EMI ID=11.1>
dans 6 parties de l'éthanol, contenant une matière colorante appropriée. La bande de la masse fibreuse est conduite à travers une chambre à sécher par dessus une série des cylindres rotatoires, alternativement d'en haut vers le bas et d'en bas vers le haut et ensuite entre les cylindres froids des trois calandres, placés l'un à la suite de l'autre. L'un des cylindres du dernier calandre est muni d'un dessin en relief et en creux pour obtenir la fleur da cuir artificielle du produit. Le produit est bien perméable aux gaz et aux vapeurs, possédant en même temps une solidité considérable.
<EMI ID=12.1>
après la projection d'une couche ultérieure de la solution
de polyamides, au moyen de courtes fibres fines, le tout étant ensuite pressé de nouveau.
<EMI ID=13.1>
On a préparé de la même manière une nappe en utilisait
100 parties des déchets des fibres de polyamides, obtenues du 6-caprolactame polymérisé. Après l'imprégnation par 2 parties du même polyamide, modifié par la formaldehyde. et le méthanol, dans 11 parties de l'éthanol et avec une addition d'ocre comme pigment, la masse fibreuse a été séchée, pressée
<EMI ID=14.1>
me solution,projetée sur l'un des côtés et, après un nouveau séchage, pressé encore une fois entre des cylindres dont l'un est muni du dessin de la fleur du cuir. Le cuir artificiel obtenu est caractérisé par une solidité et une résistance à l'eau et à des matières chimiques supérieures à celle du produit obtenu selon l'exemple 1.
Le cuir artificiel, fabriqué selon l'invention, résiste à l'eau même à chaud. De même, il est résistant aux huiles, aux matières grasses, à la benzine et à- d'autres solvants, et à des matières chimiques courantes, excepté aux acides forts et aux lessives alcalines concentrées..
Process for the manufacture of artificial leather.
<EMI ID = 1.1>
artificial leather in which polyamide fibers or other fibers are used as the raw material, or, where appropriate,
an amorphous fibrous mass, obtained by the precipitation of
polyamide solutions. To give polyamide fibers
the ability to bind together like a felt, it
their surface must be treated with corrosive agents, for example hydrochloric acid. This treatment, however, must
be carried out with extraordinary precaution, especially
when it comes to thin fibers, so as not to deteriorate
<EMI ID = 2.1>
According to the invention, an artificial leather of great value, characterized by great permeability, great flexibility, strength and durability, is produced by impregnating the web or the felt, stretched or unstretched, with. polyamide solutions, modified by reaction with formaldehyde
and methanol by immersion, by spraying or by painting; or by impregnating it with solutions of other polyamides or
<EMI ID = 3.1>
pigments, coloring matters, fillers, softeners
<EMI ID = 4.1>
born. Impregnated and dried, the web or felt is pressed in a press or between rolls in a known manner. The operation can be repeated several times until a suitable porosity and thickness of the artificial leather is obtained; by spraying a thicker layer of the same or a similar solution of polyamides on the same face, the artificial grain of leather can be obtained. In subsequent operations, the artificial leather can be treated in the usual way on finishing machines.
<EMI ID = 5.1>
<EMI ID = 6.1>
re etc. It goes without saying that the leather can then be varnished or colored. provided that colored fibers were not used as raw material.
After some time, the modified polyamides
by formaldehyde and methanol, lose their solubility, their other suitable qualities however remaining unchanged ^
<EMI ID = 7.1>
cold without reducing product uniformity. For. increase the uniformity of artificial leather, it can be squeezed) from. preferably in a wet state. As the basic raw material, not only polyamide fibers alone can be used, but also other natural or artificial fibers.
if necessary mixed. The product obtained has increased flexibility and strength and is very soft to the touch.
It goes without saying that the tablecloth or the felt can be finished in various ways; if necessary we can use
<EMI ID = 8.1>
tablecloth with a light fabric which, after impregnation with a solution of polyamides and after pressing, unites with
<EMI ID = 9.1>
preferably forms the base of the leather flower.
One can choose fibers of the same strength or a mixture of fibers of varying strength. Likewise the length of the fibers can be adapted according to the desired purpose.
As the solvent for the modified polyamide, lower aliphatic alcohols or mixtures thereof are most suitable. It goes without saying that even other suitable solvents can be used.
The pressing or calendering of the web, impregnated with the solution of the modified polyamide, can be carried out, if necessary, even before the complete drying, and this if one uses for example more fibers. thick whose elasticity prevents them from being pressed to a desired thickness.
By modifying the manufacturing process, it is possible to obtain products, having different qualities,
<EMI ID = 10.1>
40 parts of the staple fibers (Stapelfaser) of viscoâe, obtained by dry spinning, having an average count of 15 den., And 60 parts of staple fibers, obtained from the waste of the polyamide fibers, polymerized 6-caprolactam, are used. in a variety of ways, and we prepare on the wolf-breaker, a sheet with a thickness of around 4 cm onto which we then project, on both sides, a solution of one part
<EMI ID = 11.1>
in 6 parts of ethanol, containing a suitable coloring matter. The web of the fibrous mass is led through a drying chamber over a series of rotating rolls, alternately from top to bottom and bottom to top and then between the cold rolls of the three calenders, placed there. 'one after the other. One of the cylinders of the last grille is provided with a relief and hollow design to obtain the artificial leather grain of the product. The product is well permeable to gases and vapors, possessing at the same time considerable strength.
<EMI ID = 12.1>
after spraying a subsequent layer of the solution
of polyamides, by means of short fine fibers, the whole being then pressed again.
<EMI ID = 13.1>
We prepared in the same way a tablecloth using
100 parts of waste polyamide fibers, obtained from polymerized 6-caprolactam. After impregnation with 2 parts of the same polyamide, modified with formaldehyde. and methanol, in 11 parts of ethanol and with the addition of ocher as a pigment, the fibrous mass was dried, pressed
<EMI ID = 14.1>
my solution, projected onto one of the sides and, after further drying, pressed again between cylinders, one of which is provided with the design of the grain of the leather. The artificial leather obtained is characterized by a strength and a resistance to water and to chemical materials superior to that of the product obtained according to Example 1.
Artificial leather, produced according to the invention, is water resistant even when hot. Likewise, it is resistant to oils, fats, benzine and other solvents, and common chemicals, except strong acids and concentrated alkalis.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS967451X | 1947-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE482967A true BE482967A (en) |
Family
ID=5456756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE482967D BE482967A (en) | 1947-06-10 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE482967A (en) |
| FR (1) | FR967451A (en) |
| NL (1) | NL140785B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2765247A (en) * | 1953-04-14 | 1956-10-02 | Du Pont | Non-woven sheet material |
-
0
- NL NL717108268A patent/NL140785B/en unknown
- BE BE482967D patent/BE482967A/fr unknown
-
1948
- 1948-06-08 FR FR967451D patent/FR967451A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL140785B (en) | |
| FR967451A (en) | 1950-11-03 |
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