US2894386A - Apparatus for the continuous treatment of artificial - Google Patents
Apparatus for the continuous treatment of artificial Download PDFInfo
- Publication number
- US2894386A US2894386A US2894386DA US2894386A US 2894386 A US2894386 A US 2894386A US 2894386D A US2894386D A US 2894386DA US 2894386 A US2894386 A US 2894386A
- Authority
- US
- United States
- Prior art keywords
- roller
- filament
- convolutions
- filaments
- assembly
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 239000001117 sulphuric acid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/02—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing rollers
Definitions
- This invention relates to apparatus for thecontinuous treatment of artifical filaments, and more particularly to apparatus of'the type having either two rollers with nonparallel. axes iii which the filaments follow apathin the form of parallel convolutions, or a roller associated with a rodassembly having relatively inclined axes.
- An object of the invention is to provide an apparatus of this type for use in the treatment of artificial filaments and specifically for the'washing of regenerated cellulose filaments obtained by spinning into baths of concentrated sulphuric acid.
- wash liquid is applied to the filaments at a very low rate of delivery, while the roller and the rod assembly or second roller are more or less inclined in relation to the horizontal and the delivered liquid flows along the roller in the opposite direction to the advance of the convolutions.
- the roller has a special flange of such form that the first convolutions undergo a detensioning before reaching the cylindrical surface of the roller, which is of smaller diameter than the flange.
- holes are formed in the exposed radial portion of the flange for the rapid discharge of the concentrated acid which accumulates near the rim.
- Fig. 1 illustrates diagrammatically an embodiment of the invention using a roller and a rod assembly
- Fig. 2 shows a modification comprising a combination of two rollers with non-parallel axes for the first stage of the washing and a combination of a roller and a rod for the final stage of the washing.
- a filament coagulated by a concentrated sulphuric acid bath for example under the conditions described in French Patent No. 986,847, which has undergone a complete draft, is directed as indicated by the arrow F towards an assembly comprising a roller 1 on a shaft 2, and a rod assembly 3.
- the rod assembly 3 consists of a group of parallel rods. Three such rods are shown in the drawing. The number of rods may be increased to accentuate the effect of the rubbing actions on the penetration.
- three rods 9, and 11 are mounted parallel to one another between two plates 12 and 13 to form the edges of a regular prism.
- a pin 14 iscentered'on the plate 13 for the mounting of the assembly and the adjustment of the orientation thereof.
- the saidpin14 may be extended along the center of the prismv formed by the rods to the other plate 12 in order to: strengthen the assembly which is mounted in fixed position to receive the filaments.
- the roller 1 is slightly inclined in the downstream direction to cause the wash liquid to flow along its surface counter to the feed ofthe filaments.
- the axis of the rod assembly 3 intersects that of the shaft 2 at a point well beyond the roller. The angle of intersection may be modified by appropriate means.
- the roller 1 comprises a flange 4 which may be hollow andwhich has a larger diameter than thebody of the roller.
- the filament travels over the assembly comprising the roller 1 and the rod assembly 3 in parallel convolutions, the pitch being determined by the angle be tween the axes. On reaching the end of the assembly,
- the filament becomes disengaged" and travels towards a windingdevice (not shown) in the direction of the arrow
- the filament first describes a small number of convolutions on the flange 4,. for example three or four convolutions, and then passes in the de-tensioned state onto the body of the roller 1.
- the latter must consist of a material resistant to concentrated acid, for example of appropriate syntheticresimon it must be covered by such a material.
- the rod assembly 3 may consist of glass, or of plastic material reinforced with glass fiber.
- a limited quantity of water is fed drop-by-drop through a nozzle 5 onto the last convolutions of filament on the roller 1 and the liquid flows along the inclined surface of the roller 1 becoming progressively enriched with sulphuric acid.
- the acid may flow through a ring of holes 6 towards the interior of the hollow flange, and thereafter escape into a trough 7, which has a drain pipe 8, through which it is transferred into a reservoir for recovered acid.
- the quantity of wash water delivered through the nozzle 5 can readily be regulated with due regard to the quantity of acid entrained by the filament and to the speed thereof, so as to bring the concentration of the recovered solution to 40% or even 50% or more.
- the solution can readily be concentrated by evaporation by known methods for re-use.
- the rod assembly 3 in addition to ensuring an automatic advance of the convolutions of filament in cooperation with the roller 1, exerts multiple mechanical rubbing actions on the surfaces of the filaments. Such rubbing actions facilitate the penetration of the washing liquid, which circulates in a counter current direction and increases the acid pick-up.
- the roller 1 may be provided with known means for the circulation of hot or cold fluids for the purpose of temperature regulation. Since the dilution of the acid is strongly exothermic, cooling is usually required.
- the diameter of the roller 1 at first increases slightly in a downstream direction extending from the flange 4 to the line AB (Fig. 1), whereafter it decreases and reaches at the downstream and a diameter a few percent smaller than the upstream diameter.
- This arrangement allows for the initial elongation of the gel during the first de-acidifying phase. This elongation thereafter decreases and the gel consequently contracts during the final washing.
- the rod assembly 3 is so oriented that the point at which the axis of the roller is intersected by the shortest straight line joining this axis and the axis of the rod assembly is situated appreciably downstream of the roller 1.
- the combination of these two arrangements tends to ensure a slightly decreasing pitch of the convolutions, in particular on the second part of the roller 1.
- the difference in diameter between the upstream and downstream ends may be of the order of and the maximum diameter may be of the order of 2% to 3% greater than the initial diameter. However, these values are not to be regarded as limitative.
- the first part of the washing is carried out on an assembly of two rollers, while the end of the washing is carried out on an assembly comprising one roller and one rod assembly.
- One of the rollers may be the same in both stages.
- the filament travels to the device in the direction of the arrow F and leaves it in the direction of the arrow F, as in Fig. 1.
- the first part of the washing takes place as the filament travels in a number of convolutions over the assembly of rollers 15 and 16, the first and second of which may both comprise a first section of larger diameter (15A and 16A) than the following section (15B and 16B) in order to permit contraction of the filament.
- the roller 16 is shorter than the roller 15 and after a number of convolutions the filament becomes engaged on an assembly comprising the roller 15 and a rod assembly 17, similar to the assembly 3 of Fig. 1 slightly inclined with respect to the axis of the roller 15.
- Wash liquid is fed drop-by-drop by nozzle 5 and the water therefore circulates countercurrent to the filament feed.
- the advantage of the arrangement illustrated in Fig. 2 is that, during the first part of the washing, the gel, which is still very plastic, is positively entrained with relaxation through a long path.
- Apparatus for the continuous treatment of filaments by a liquid comprising a roller having a raised flange at one end with a peripheral surface to receive filaments and guide means extending along and spaced from said roller, said roller and said guide means having relatively inclined axes, said filament being adapted to be fed in advancing convolutions around said roller and said guide means, the first of said convolutions being disposed on said flange whereby de-tensioning occurs as the filament advances from said flange to the roller surface, means for feeding the treating liquid onto the filament at the trailing end of said roller, said roller being inclined in a direction to cause the liquid to flow along the surface thereof to the leading end, said flange having openings in its radial surface to permit said liquid to drain therethrough, said guide means comprising a plurality of spaced parallel rods arranged to contact and rub the filament as the convolutions advance along said guide means.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
July 14, 1959 R. BREPSON APPARATUS FOR THE CONTINUOUS TREATMENT OF ARTIFICIAL FILAMENTS Original Fild April 26, 1955 s I mus EJ IJE I I:
74 A ra-w 7-5 2,894,385 Patented July 14, 1959 APPARATUS FOR THE coNTINUoUs-TnEAT- MENT on ARTIFICIAL FILAMENTS Roland Brepson, La Vorilte, Rhone, France, assign'orto Soeiete' Chimiotex, a' corporation of Morocco Original application April 26, 1955,. Serial No. 504,039. Diviaied and thisapplication May 2, 1957, Serial No. 656, 30
Claims priority,application France April 30, 1954 3 Claims. (Cl. 68-205) This invention relates to apparatus for thecontinuous treatment of artifical filaments, and more particularly to apparatus of'the type having either two rollers with nonparallel. axes iii which the filaments follow apathin the form of parallel convolutions, or a roller associated with a rodassembly having relatively inclined axes.
An object of the invention is to provide an apparatus of this type for use in the treatment of artificial filaments and specifically for the'washing of regenerated cellulose filaments obtained by spinning into baths of concentrated sulphuric acid.
This application is adivision of my co-pending application Serial No. 504,039 filed April 26, 1955 (and now abandoned) for Apparatus for Washing Filaments.
It is known that in this method the filaments contain considerable quantities of concentrated acid which it is diificult to recover.
According to the invention, wash liquid is applied to the filaments at a very low rate of delivery, while the roller and the rod assembly or second roller are more or less inclined in relation to the horizontal and the delivered liquid flows along the roller in the opposite direction to the advance of the convolutions. The roller has a special flange of such form that the first convolutions undergo a detensioning before reaching the cylindrical surface of the roller, which is of smaller diameter than the flange.
In addition, holes are formed in the exposed radial portion of the flange for the rapid discharge of the concentrated acid which accumulates near the rim.
With this apparatus, it is possible to recover the acid with which the filament is impregnated in a very satisfactory yield and with an acid concentration of about 40% or even 50% or more, the reconcentration of which for reuse is relatively simple.
The invention will be more particularly described with reference to a specific example, it being understood that it is not limited to this example.
In the drawings:
Fig. 1 illustrates diagrammatically an embodiment of the invention using a roller and a rod assembly; and
Fig. 2 shows a modification comprising a combination of two rollers with non-parallel axes for the first stage of the washing and a combination of a roller and a rod for the final stage of the washing.
A filament coagulated by a concentrated sulphuric acid bath, for example under the conditions described in French Patent No. 986,847, which has undergone a complete draft, is directed as indicated by the arrow F towards an assembly comprising a roller 1 on a shaft 2, and a rod assembly 3.
In order to ensure sufiicient rigidity and mechanical stability and in order to exert the desired scrubbing action the rod assembly 3 consists of a group of parallel rods. Three such rods are shown in the drawing. The number of rods may be increased to accentuate the effect of the rubbing actions on the penetration.
In the embodiment shown three rods 9, and 11 are mounted parallel to one another between two plates 12 and 13 to form the edges of a regular prism. A pin 14 iscentered'on the plate 13 for the mounting of the assembly and the adjustment of the orientation thereof. The saidpin14 may be extended along the center of the prismv formed by the rods to the other plate 12 in order to: strengthen the assembly which is mounted in fixed position to receive the filaments.
The roller 1 is slightly inclined in the downstream direction to cause the wash liquid to flow along its surface counter to the feed ofthe filaments. The axis of the rod assembly 3 intersects that of the shaft 2 at a point well beyond the roller. The angle of intersection may be modified by appropriate means.
The roller 1 comprisesa flange 4 which may be hollow andwhich has a larger diameter than thebody of the roller. The filament travels over the assembly comprising the roller 1 and the rod assembly 3 in parallel convolutions, the pitch being determined by the angle be tween the axes. On reaching the end of the assembly,
the filament becomes disengaged" and travels towards a windingdevice (not shown) in the direction of the arrow The filament first describes a small number of convolutions on the flange 4,. for example three or four convolutions, and then passes in the de-tensioned state onto the body of the roller 1. The latter must consist of a material resistant to concentrated acid, for example of appropriate syntheticresimon it must be covered by such a material. The rod assembly 3 may consist of glass, or of plastic material reinforced with glass fiber.
A limited quantity of water is fed drop-by-drop through a nozzle 5 onto the last convolutions of filament on the roller 1 and the liquid flows along the inclined surface of the roller 1 becoming progressively enriched with sulphuric acid. The acid may flow through a ring of holes 6 towards the interior of the hollow flange, and thereafter escape into a trough 7, which has a drain pipe 8, through which it is transferred into a reservoir for recovered acid.
The quantity of wash water delivered through the nozzle 5 can readily be regulated with due regard to the quantity of acid entrained by the filament and to the speed thereof, so as to bring the concentration of the recovered solution to 40% or even 50% or more. The solution can readily be concentrated by evaporation by known methods for re-use.
The rod assembly 3, in addition to ensuring an automatic advance of the convolutions of filament in cooperation with the roller 1, exerts multiple mechanical rubbing actions on the surfaces of the filaments. Such rubbing actions facilitate the penetration of the washing liquid, which circulates in a counter current direction and increases the acid pick-up.
The roller 1 may be provided with known means for the circulation of hot or cold fluids for the purpose of temperature regulation. Since the dilution of the acid is strongly exothermic, cooling is usually required.
In a preferred embodiment, the diameter of the roller 1 at first increases slightly in a downstream direction extending from the flange 4 to the line AB (Fig. 1), whereafter it decreases and reaches at the downstream and a diameter a few percent smaller than the upstream diameter. This arrangement allows for the initial elongation of the gel during the first de-acidifying phase. This elongation thereafter decreases and the gel consequently contracts during the final washing.
The rod assembly 3 is so oriented that the point at which the axis of the roller is intersected by the shortest straight line joining this axis and the axis of the rod assembly is situated appreciably downstream of the roller 1. The combination of these two arrangements tends to ensure a slightly decreasing pitch of the convolutions, in particular on the second part of the roller 1. The difference in diameter between the upstream and downstream ends may be of the order of and the maximum diameter may be of the order of 2% to 3% greater than the initial diameter. However, these values are not to be regarded as limitative.
In Fig. 2, the first part of the washing is carried out on an assembly of two rollers, while the end of the washing is carried out on an assembly comprising one roller and one rod assembly. One of the rollers may be the same in both stages.
In the arrangement shown in Fig. 2, the filament travels to the device in the direction of the arrow F and leaves it in the direction of the arrow F, as in Fig. 1. The first part of the washing takes place as the filament travels in a number of convolutions over the assembly of rollers 15 and 16, the first and second of which may both comprise a first section of larger diameter (15A and 16A) than the following section (15B and 16B) in order to permit contraction of the filament.
The roller 16 is shorter than the roller 15 and after a number of convolutions the filament becomes engaged on an assembly comprising the roller 15 and a rod assembly 17, similar to the assembly 3 of Fig. 1 slightly inclined with respect to the axis of the roller 15.
Wash liquid is fed drop-by-drop by nozzle 5 and the water therefore circulates countercurrent to the filament feed. The advantage of the arrangement illustrated in Fig. 2 is that, during the first part of the washing, the gel, which is still very plastic, is positively entrained with relaxation through a long path.
What is claimed is:
1. Apparatus for the continuous treatment of filaments by a liquid, comprising a roller having a raised flange at one end with a peripheral surface to receive filaments and guide means extending along and spaced from said roller, said roller and said guide means having relatively inclined axes, said filament being adapted to be fed in advancing convolutions around said roller and said guide means, the first of said convolutions being disposed on said flange whereby de-tensioning occurs as the filament advances from said flange to the roller surface, means for feeding the treating liquid onto the filament at the trailing end of said roller, said roller being inclined in a direction to cause the liquid to flow along the surface thereof to the leading end, said flange having openings in its radial surface to permit said liquid to drain therethrough, said guide means comprising a plurality of spaced parallel rods arranged to contact and rub the filament as the convolutions advance along said guide means.
2. Apparatus as set forth in claim 1 in which said roller has a diameter which increases from the leading end to an intermediate point and then decreases toward said trailing end.
3. Apparatus, as set forth in claim 1, having collecting means'to collect the liquid draining from said roller.
References Cited in the file of this patent UNITED STATES PATENTS Hartmann Nov. 5, 1935 2,107,451 Oppenlaender Feb. 8, 1938
Publications (1)
Publication Number | Publication Date |
---|---|
US2894386A true US2894386A (en) | 1959-07-14 |
Family
ID=3447822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US2894386D Expired - Lifetime US2894386A (en) | Apparatus for the continuous treatment of artificial |
Country Status (1)
Country | Link |
---|---|
US (1) | US2894386A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2020057A (en) * | 1932-03-05 | 1935-11-05 | American Bemberg Corp | Process and apparatus for the treatment of artificial silk |
US2107451A (en) * | 1935-09-28 | 1938-02-08 | Tubize Chatillon Corp | Manufacture of rayon and the like |
-
0
- US US2894386D patent/US2894386A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2020057A (en) * | 1932-03-05 | 1935-11-05 | American Bemberg Corp | Process and apparatus for the treatment of artificial silk |
US2107451A (en) * | 1935-09-28 | 1938-02-08 | Tubize Chatillon Corp | Manufacture of rayon and the like |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2155324A (en) | Manufacture of artificial silk | |
US2041338A (en) | Continuous rayon spinning and processing machine | |
DE1635106A1 (en) | Method and device for the wet treatment of liquid-permeable goods | |
US2894386A (en) | Apparatus for the continuous treatment of artificial | |
US2287031A (en) | Apparatus for the continuous aftertreatment of threads | |
US2721466A (en) | Apparatus for the countercurrent liquid treatment of yarn | |
GB1037381A (en) | Producing artificial filamentary material from condensation polymers | |
US1561445A (en) | Gutter or channel for treating artificial threads or yarns, particularly imitation-silk yarns, with acids or an acid containing liquor | |
US2513432A (en) | Liquid treatment of filamentary material | |
US2788256A (en) | Method of spinning filamentary strands | |
US2844019A (en) | Apparatus for the aftertreatment of endless cables or tows of artificial filaments | |
US2156923A (en) | Method and apparatus for the production of cellulosic structures | |
US2620258A (en) | Method for the manufacture of viscose rayon | |
US2979767A (en) | Filament film spinning and processing machine | |
DE825456C (en) | Method and device for making a roving made of glass | |
DE3136562A1 (en) | "METHOD FOR CONTINUOUS STATIC VAPOR TREATMENT OF TEXTILES AND HIGH PRESSURE DAMPER FOR CARRYING OUT THE METHOD" | |
USRE22104E (en) | Art of sizing warps | |
US2439829A (en) | Method of producing artificial yarn | |
US2524177A (en) | Means for treating filamentary materials with liquid | |
US2248862A (en) | Manufacture and production of artificial filaments and apparatus therefor | |
US2780347A (en) | Apparatus for the treatment of thread | |
US2377655A (en) | Liquid treatment of filamentary material | |
US1971627A (en) | Process of and apparatus for treating artificial threads | |
US3230747A (en) | Cascade washing apparatus | |
US1306650A (en) | Emil weinheim |