CA1258958A - Polyester yarns dyed according to the space dyeing method - Google Patents
Polyester yarns dyed according to the space dyeing methodInfo
- Publication number
- CA1258958A CA1258958A CA000489167A CA489167A CA1258958A CA 1258958 A CA1258958 A CA 1258958A CA 000489167 A CA000489167 A CA 000489167A CA 489167 A CA489167 A CA 489167A CA 1258958 A CA1258958 A CA 1258958A
- Authority
- CA
- Canada
- Prior art keywords
- yarn
- polyethylene terephthalate
- fibers
- space
- yarns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
POLYESTER YARNS DYED ACCORDING TO THE SPACE-DYEING METHOD
ABSTRACT OF THE INVENTION
Polyester yarns are dyed according to the space-dyeing process by using yarns in the printing process, which consist of polyethylene terephthalate fibers spun at velocities of at least 4,000 m/min., and steam-set at temperatures of up to 102°C. The fibers may be continuous filament fibers or staple fibers; preferably, yarns are used which have been spun at a speed of at least 4,500 m/min., in particular at least at 5,000 m/min. The devices used for space-dyeing may be those customarily used for the space-dyeing of polyamide yarns.
ABSTRACT OF THE INVENTION
Polyester yarns are dyed according to the space-dyeing process by using yarns in the printing process, which consist of polyethylene terephthalate fibers spun at velocities of at least 4,000 m/min., and steam-set at temperatures of up to 102°C. The fibers may be continuous filament fibers or staple fibers; preferably, yarns are used which have been spun at a speed of at least 4,500 m/min., in particular at least at 5,000 m/min. The devices used for space-dyeing may be those customarily used for the space-dyeing of polyamide yarns.
Description
~25~:3~
POLYESTER YARNS DYED ACCOR~ING TO THE SPACE DYEING METHOD
BACKGROUND OF THE INVENTION
The invention refers to polyester yarns dyed accor-ding to the so-called space-dyeing method, to a process for the manufacture of polyester yarns dyed according to the space-dyeing method, as well as to the utilization of such yarns.
Space-dyeing is understood ~o be the printing or dyeing by sections of yarn or tow materials in the course of the most varied processing stages. The space-dyeing process as such has been known for some time, and is particularly used for yarns made of polyamide fibers.
Polyester fiber types as well have already been printed according to the space-dyeing process. However, when current types of polyester yarn are used, space-dyeing requires setting at temperatures of about 1 35C. This treatment is very energy-intensive and requires the use of special equipment.
Modified polyester yarns have already been printed.
Use has been made of polyester yarns made of a polyester mate-rial which has been chemically modified during polycondensa-tion, e.g. through the concomitant use of polyglycol. Since polyester is a copolymer, however, such polyester yarns exhibit a number of drawbacks. Thus, e.g., the hydrolysis resistance is worse. A decline in light-fastness can also be observed.
Furthermore, the preparation of copolymers requires special '' ~2~8958 processing measures, which complicate the manufacture of fibers and make it more prone to disturbances.
BRIEF DESCRIPTION OF THE INVENTION
It is therefore the goal of this invention to make available a process no longer requiring the use of elevated setting temperatures, e.g. of 135C, during space-dyeing, but in which it is sufficient to set with steam of temperatures up to about 100C or only some degrees above.
It is furthermore the goal of the invention to make available a process in which polyester yarns can be dyed according to the space-dyeing process in equipment customarily used in the widely employed space-dyeing of polyamide without the need to subject this equipment to substantial changes regarding design and processing method.
The object of the invention is likewise the dyed polyester yarns obtainable according to the above-listed processes.
The object of the invention is furthermore the use of the polyester yarns dyed pursuant to the invention in the manufacture of automobile and furniture upholstery fabrics and carpets.
It is furthermore the goal of the invention to indicate especially favorable end-uses for polyester yarns dyed in this manner.
This goal is attained by means of a process for the dyeing of polyester yarns by printing of the latter according to the space-dyeing method, which is characterized by the fact ~Z~13958 that for the yarns to be printed, use is made of polyethylene terephthalate fibers spun at velocities of at least 4,000 m/min., which are set with steam at temperatures of up to about 105C, preferably at temperatures of up to about 102C.
Preferably, use is made of polyethylene terephthalate fibers spun at high speeds of at least 4,500 m/minO t in particular of at least 5,000 m/min. It is advantageous to perform setting with saturated steam, and it is preferable to work under normal pressure during setting. It is also possible within the framework of the invention to use yarns made up of staple fiber blends consisting of polyethylene terephthalate fibers spun at high speed and polyacrylonitrile fibers. Mixtures of polyethylene terephthalate fibers spun at high speed and wool are also advantageous. l'he polyethylene terephthalate fibers spun at high speed may have been drawn and also subjected to texturing, whereby blowing- jet-textured polyethylene terephthalate fibers spun at high speed are in particular very well suited.
DETAILED DESCRIPTION OF THE INVENTION
The manufacture of polyester fibers spun at high speed is known; it is described in European patent application disclosures 56963 and 95712. Within the framework of the invention, polyethylene terephthalate fibers spun at high speed are understood to mean polyethylene terephthalate fibers spun pursuant to the polyester melt-spinning process at draw-off speeds of at least 4,000, in particular at least 4,500 and preferably at least 5,000 m/min. Polyester fibers are involved 1~5~5~
thereby which have a so-called preferential orientation which results from the fact that, during spinning, the polyes-ter -thread, on accoun-t of the high draw-off velocities of up to 4,000 m/min., i.s pre-oriented between the spinneret and solidification poin-t of the yarn along the spin path.
Further details concerning the phenomena during the high-speed spinning of polyester fibers are contained in the paper entitled "Investigations Concerning the Polyester Melt-spinning Process at Draw-off ~elocities from 5,000 to 10,000 m/min." (Untersuchungen zum PES-Schmelzspinnprozess bei Abzugsgeschwindigkeiten von 5,000 bis 10,000 m/min.) by W.
Dietrich et al., in "Chemiefasern", September 1982, pages 612 to 625.
Polyethylene terephthalate within the framework of the invention is understood to be the essentially unmodified polyester condensate obtained from dimethyl terephthalate and ethylene glycol through transesterification and polycondensa-tion, as well as the polymer obtained through direct condensa-tion of terephthalic acid and ethylene glycol. "Essentially unmodified" means that it has not been chemically modified by means of the co-condensation of compounds such as polyglycol, and the like.
The polyethylene terephthalate fibers of which the yarns consist may be continuous~ or of indefinite length, i.e., filaments or endless fibers. They may also be made up of fibers with a finite length, e.g., staple fibers, obtained through the cutting or breaking of endless fibers.
]rc ~, <t., ' ~ ' ~` ;` '` ' ' ~:5~395~
The polyethylene terephthalate fibers spun at high speed may be made into yarn either undrawn or drawn, and dyed pursuant to the invention.
~ rawing of the yarns spun at high speed may be carried out in the customary manner. PreEerence is given to processes employing the customarily used drawing pins.
When polyethylene terephthalate fibers spun at high speeds are dyed pursuant to the invention in the drawn state, they may also be textured, in particular blowing-jet~textured, before the space-dyeing process. However, undrawn fibers spun at high speed may also be subjected to texturing.
Blowing-jet-textured yarns of polyester fibers, as are used within the framework of the invention, are made by texturing with a texturing jet operating pursuant to the air jet principle.
Devices by means of which such blowing-jet-textured yarns can be manufactured are described in the magazine Chemiefasern/Textilindustrie, October 1975, pp. 929 ff.
A process for the manufacture of blowing-jet-textured polyester filament yarns as may be used pursuant to the invention is described in German patent application disclosure
POLYESTER YARNS DYED ACCOR~ING TO THE SPACE DYEING METHOD
BACKGROUND OF THE INVENTION
The invention refers to polyester yarns dyed accor-ding to the so-called space-dyeing method, to a process for the manufacture of polyester yarns dyed according to the space-dyeing method, as well as to the utilization of such yarns.
Space-dyeing is understood ~o be the printing or dyeing by sections of yarn or tow materials in the course of the most varied processing stages. The space-dyeing process as such has been known for some time, and is particularly used for yarns made of polyamide fibers.
Polyester fiber types as well have already been printed according to the space-dyeing process. However, when current types of polyester yarn are used, space-dyeing requires setting at temperatures of about 1 35C. This treatment is very energy-intensive and requires the use of special equipment.
Modified polyester yarns have already been printed.
Use has been made of polyester yarns made of a polyester mate-rial which has been chemically modified during polycondensa-tion, e.g. through the concomitant use of polyglycol. Since polyester is a copolymer, however, such polyester yarns exhibit a number of drawbacks. Thus, e.g., the hydrolysis resistance is worse. A decline in light-fastness can also be observed.
Furthermore, the preparation of copolymers requires special '' ~2~8958 processing measures, which complicate the manufacture of fibers and make it more prone to disturbances.
BRIEF DESCRIPTION OF THE INVENTION
It is therefore the goal of this invention to make available a process no longer requiring the use of elevated setting temperatures, e.g. of 135C, during space-dyeing, but in which it is sufficient to set with steam of temperatures up to about 100C or only some degrees above.
It is furthermore the goal of the invention to make available a process in which polyester yarns can be dyed according to the space-dyeing process in equipment customarily used in the widely employed space-dyeing of polyamide without the need to subject this equipment to substantial changes regarding design and processing method.
The object of the invention is likewise the dyed polyester yarns obtainable according to the above-listed processes.
The object of the invention is furthermore the use of the polyester yarns dyed pursuant to the invention in the manufacture of automobile and furniture upholstery fabrics and carpets.
It is furthermore the goal of the invention to indicate especially favorable end-uses for polyester yarns dyed in this manner.
This goal is attained by means of a process for the dyeing of polyester yarns by printing of the latter according to the space-dyeing method, which is characterized by the fact ~Z~13958 that for the yarns to be printed, use is made of polyethylene terephthalate fibers spun at velocities of at least 4,000 m/min., which are set with steam at temperatures of up to about 105C, preferably at temperatures of up to about 102C.
Preferably, use is made of polyethylene terephthalate fibers spun at high speeds of at least 4,500 m/minO t in particular of at least 5,000 m/min. It is advantageous to perform setting with saturated steam, and it is preferable to work under normal pressure during setting. It is also possible within the framework of the invention to use yarns made up of staple fiber blends consisting of polyethylene terephthalate fibers spun at high speed and polyacrylonitrile fibers. Mixtures of polyethylene terephthalate fibers spun at high speed and wool are also advantageous. l'he polyethylene terephthalate fibers spun at high speed may have been drawn and also subjected to texturing, whereby blowing- jet-textured polyethylene terephthalate fibers spun at high speed are in particular very well suited.
DETAILED DESCRIPTION OF THE INVENTION
The manufacture of polyester fibers spun at high speed is known; it is described in European patent application disclosures 56963 and 95712. Within the framework of the invention, polyethylene terephthalate fibers spun at high speed are understood to mean polyethylene terephthalate fibers spun pursuant to the polyester melt-spinning process at draw-off speeds of at least 4,000, in particular at least 4,500 and preferably at least 5,000 m/min. Polyester fibers are involved 1~5~5~
thereby which have a so-called preferential orientation which results from the fact that, during spinning, the polyes-ter -thread, on accoun-t of the high draw-off velocities of up to 4,000 m/min., i.s pre-oriented between the spinneret and solidification poin-t of the yarn along the spin path.
Further details concerning the phenomena during the high-speed spinning of polyester fibers are contained in the paper entitled "Investigations Concerning the Polyester Melt-spinning Process at Draw-off ~elocities from 5,000 to 10,000 m/min." (Untersuchungen zum PES-Schmelzspinnprozess bei Abzugsgeschwindigkeiten von 5,000 bis 10,000 m/min.) by W.
Dietrich et al., in "Chemiefasern", September 1982, pages 612 to 625.
Polyethylene terephthalate within the framework of the invention is understood to be the essentially unmodified polyester condensate obtained from dimethyl terephthalate and ethylene glycol through transesterification and polycondensa-tion, as well as the polymer obtained through direct condensa-tion of terephthalic acid and ethylene glycol. "Essentially unmodified" means that it has not been chemically modified by means of the co-condensation of compounds such as polyglycol, and the like.
The polyethylene terephthalate fibers of which the yarns consist may be continuous~ or of indefinite length, i.e., filaments or endless fibers. They may also be made up of fibers with a finite length, e.g., staple fibers, obtained through the cutting or breaking of endless fibers.
]rc ~, <t., ' ~ ' ~` ;` '` ' ' ~:5~395~
The polyethylene terephthalate fibers spun at high speed may be made into yarn either undrawn or drawn, and dyed pursuant to the invention.
~ rawing of the yarns spun at high speed may be carried out in the customary manner. PreEerence is given to processes employing the customarily used drawing pins.
When polyethylene terephthalate fibers spun at high speeds are dyed pursuant to the invention in the drawn state, they may also be textured, in particular blowing-jet~textured, before the space-dyeing process. However, undrawn fibers spun at high speed may also be subjected to texturing.
Blowing-jet-textured yarns of polyester fibers, as are used within the framework of the invention, are made by texturing with a texturing jet operating pursuant to the air jet principle.
Devices by means of which such blowing-jet-textured yarns can be manufactured are described in the magazine Chemiefasern/Textilindustrie, October 1975, pp. 929 ff.
A process for the manufacture of blowing-jet-textured polyester filament yarns as may be used pursuant to the invention is described in German patent application disclosure
2 749 867. It is important that the yarns are supplied to the texturing jet with an overfeed~ The yarn may be set after leaving the texturing zone. The blowing-jet-textured yarns exhibit loops. A part of the loops may be broken, as is described in German patent application disclosure 3 210 78~.
To carry out the space-dyeing process, use can be made of customary methods. Such space-dyeing methods are ~;~5~'3958 described in issue No~ 26 of Bayer-Farbenrevue, of Bayer A.G., Leverkusen. In principle, the six working methods listed there are possible, namely - printing on knitted material - printing on warp sheets (warp printing) - printing on yarn in hanks - multi-color effect on yarn in hanks - multi-color effect on yarn packages - multi-color effect on knitted and woven fabrics, tufted materials and non-wovens.
However, within the framework of the invention, preference is given to the warp printing method and to printing on knitted material.
The yarns to be dyed pursuant to the invention may consist of a single type of fiber, i.e., be made up only of polyethylene terephthalate. Thereby, the yarns involved may consist of continuous filament, or of staple fiber yarns. It is also possible to make use of yarns made up of fiber blends, i.e., of polyethylene terephthalate spun at high speed and polyacrylonitrile, or polyethylene terephthalate and wool~
Blends of polyethylene terephthalate, polyacrylonitrile and wool may also be used.
It is possible to make use of polyethylene terephthalate fibers spun at high speed with drawing and without texturing, without drawing and with texturing, or with drawing and texturing.
The dyestuffs usable for the execution of the process of the invention are customarily used dyestuffs suitable for ~L~5~35~
the printing of polyester materials, in particular dispersion dyes. The customary components for printing pastes for the space-dyeing of polyester fibers pursuant to the invention are commercially available. The average expert in the field can compound the printing pastes on hand of already known~ or obvious formulations.
It was especially surprising that, by means of the process pursuant to the invention, polyester yarns containing polyethylene terephthalate fibers spun at high speed could be dyed well, and that it is no longer necessary to set at elevated temperatures, such as at 135C. It is thus possible to work with an especially economical process, which consumes less energy. An additional great advantage is the fact that the process pursuant to the invention permits the execution of the space-dyeing of polyester yarns on equipment originally designed for the dyeing of polyamide yarns. In the case of the process pursuant to the invention it is neither necessary to change the equipment nor to modify the processing conditions.
If customarily made polyester yarns are used which have not been spun at a high speed, the dye uptake under these conditions is considerably lower, so that it is not possible to obtain a satisfactory dyeing result.
The process can be applied to all polyethylene terephthalate yarns spun at high speed greater than about 4,000 meters per minute. Chemical modification of the polyethylene terephthalate is not necessary and it is also possible to work with printing pastes free from carriers. As a result, the ~ l~ 58 ~35~
proces, pursuant to the invention is substantially more econo~ical and ecologic~lly acceptable.
EXAt~PLE
The invention is explained in greater detail on hand of the following example:
Polyethylene terephthalate, obtained in a custo~ary manner through transesterification from dimethyl terephthalate and ethylene glycol and polycondensation, is spun into filamen' yarn at a spinning temperat~re of 285C, with draw-off 10 velocities of 4,500 and 5,000 m/min.
Ihe resultlng fila.nents are processed into yarn in one case without drawing and in another case with drawing, which is in each case followed by blowing-jet-texturing. In each case, the yarns were processed into a knitted hose in the usual manrler. Printing pastes, described below in greater detail, are applied to the knitted hose. Application of each dye paste is followed by setting for 15 rninutes at 102C in saturated steam, rinsing, and reductive cleaning in the usual ~ manner. The knitted hose are then unravelled again and the . . .
yarn is wound on spools. The yarns exhibit the dye picture with color effects characteristic for space-dyeing.
B~UE DYE PASTE COi~POSITION
..
300 g stock thickening (8~ Indalca PA-3 thickening~
Indalca PA-3 is a commercially available product on the basis of patent flour ether from the firm Cesalpinia S.A., via B.
Bono 6, I2400 3ergamo, Italy;
* trade mark ~L~5~3~5~
5 g f ixinq auxiliary Emulphor EL, an oxyethylated castor oil from the firm BASF, Ludwigshafen;
5 g ~onosodium phosphate, to adjust the pH;
50 g Resolin blue F~L dyestuff, from the firm eayer A.G., Leverkusen;
Water to make up 1,000 grams.
RED DYE PASTE COMPOSITION
300 g stock thickening (8% Indalca PA-3 thickening) Indalca PA 5 is a commercially available product on the basis of patent flour ether from the firm Cesalpinia S.A., via B.
Bono 6, I2400 Bergamo, Italy;
5 g Monosodium phosphate, to adjust the pH;
60 g Resolin red BRL dyestuff, from the firm Bayer A.G., Leverkusen;
Water to make up 1,000 grams.
* trade mark
To carry out the space-dyeing process, use can be made of customary methods. Such space-dyeing methods are ~;~5~'3958 described in issue No~ 26 of Bayer-Farbenrevue, of Bayer A.G., Leverkusen. In principle, the six working methods listed there are possible, namely - printing on knitted material - printing on warp sheets (warp printing) - printing on yarn in hanks - multi-color effect on yarn in hanks - multi-color effect on yarn packages - multi-color effect on knitted and woven fabrics, tufted materials and non-wovens.
However, within the framework of the invention, preference is given to the warp printing method and to printing on knitted material.
The yarns to be dyed pursuant to the invention may consist of a single type of fiber, i.e., be made up only of polyethylene terephthalate. Thereby, the yarns involved may consist of continuous filament, or of staple fiber yarns. It is also possible to make use of yarns made up of fiber blends, i.e., of polyethylene terephthalate spun at high speed and polyacrylonitrile, or polyethylene terephthalate and wool~
Blends of polyethylene terephthalate, polyacrylonitrile and wool may also be used.
It is possible to make use of polyethylene terephthalate fibers spun at high speed with drawing and without texturing, without drawing and with texturing, or with drawing and texturing.
The dyestuffs usable for the execution of the process of the invention are customarily used dyestuffs suitable for ~L~5~35~
the printing of polyester materials, in particular dispersion dyes. The customary components for printing pastes for the space-dyeing of polyester fibers pursuant to the invention are commercially available. The average expert in the field can compound the printing pastes on hand of already known~ or obvious formulations.
It was especially surprising that, by means of the process pursuant to the invention, polyester yarns containing polyethylene terephthalate fibers spun at high speed could be dyed well, and that it is no longer necessary to set at elevated temperatures, such as at 135C. It is thus possible to work with an especially economical process, which consumes less energy. An additional great advantage is the fact that the process pursuant to the invention permits the execution of the space-dyeing of polyester yarns on equipment originally designed for the dyeing of polyamide yarns. In the case of the process pursuant to the invention it is neither necessary to change the equipment nor to modify the processing conditions.
If customarily made polyester yarns are used which have not been spun at a high speed, the dye uptake under these conditions is considerably lower, so that it is not possible to obtain a satisfactory dyeing result.
The process can be applied to all polyethylene terephthalate yarns spun at high speed greater than about 4,000 meters per minute. Chemical modification of the polyethylene terephthalate is not necessary and it is also possible to work with printing pastes free from carriers. As a result, the ~ l~ 58 ~35~
proces, pursuant to the invention is substantially more econo~ical and ecologic~lly acceptable.
EXAt~PLE
The invention is explained in greater detail on hand of the following example:
Polyethylene terephthalate, obtained in a custo~ary manner through transesterification from dimethyl terephthalate and ethylene glycol and polycondensation, is spun into filamen' yarn at a spinning temperat~re of 285C, with draw-off 10 velocities of 4,500 and 5,000 m/min.
Ihe resultlng fila.nents are processed into yarn in one case without drawing and in another case with drawing, which is in each case followed by blowing-jet-texturing. In each case, the yarns were processed into a knitted hose in the usual manrler. Printing pastes, described below in greater detail, are applied to the knitted hose. Application of each dye paste is followed by setting for 15 rninutes at 102C in saturated steam, rinsing, and reductive cleaning in the usual ~ manner. The knitted hose are then unravelled again and the . . .
yarn is wound on spools. The yarns exhibit the dye picture with color effects characteristic for space-dyeing.
B~UE DYE PASTE COi~POSITION
..
300 g stock thickening (8~ Indalca PA-3 thickening~
Indalca PA-3 is a commercially available product on the basis of patent flour ether from the firm Cesalpinia S.A., via B.
Bono 6, I2400 3ergamo, Italy;
* trade mark ~L~5~3~5~
5 g f ixinq auxiliary Emulphor EL, an oxyethylated castor oil from the firm BASF, Ludwigshafen;
5 g ~onosodium phosphate, to adjust the pH;
50 g Resolin blue F~L dyestuff, from the firm eayer A.G., Leverkusen;
Water to make up 1,000 grams.
RED DYE PASTE COMPOSITION
300 g stock thickening (8% Indalca PA-3 thickening) Indalca PA 5 is a commercially available product on the basis of patent flour ether from the firm Cesalpinia S.A., via B.
Bono 6, I2400 Bergamo, Italy;
5 g Monosodium phosphate, to adjust the pH;
60 g Resolin red BRL dyestuff, from the firm Bayer A.G., Leverkusen;
Water to make up 1,000 grams.
* trade mark
Claims (15)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for space dyeing polyester yarn, comprising:
(a) printing a space dyeing pattern on a polyethylene terephthal-ate yarn, said yarn comprising polyethylene terephthalate fibers spun at a speed of at least 4,000 m/min; and (b) heat setting the printed yarn with steam at a temperature of up to about 105°C.
(a) printing a space dyeing pattern on a polyethylene terephthal-ate yarn, said yarn comprising polyethylene terephthalate fibers spun at a speed of at least 4,000 m/min; and (b) heat setting the printed yarn with steam at a temperature of up to about 105°C.
2. The process of claim 1, wherein the yarn is set with steam at temperatures of up to about 102°C.
3. The process of claim 1, wherein said speed is at least 4,500 m/min.
4. The process of claim 3, wherein said speed is at least 5,000 m/min.
5. The process of claim 1, wherein the steam setting is with saturated steam.
6. The process of claim 5, wherein the steam setting is under ambient or normal pressure.
7. The process of claim 1, 2 or 3, wherein the yarn further includes polyacrylonitrile fibers.
8. The process of claim 1, 2 or 3, wherein the yarn further includes wool.
9. The process of claim 1, 2 or 3, wherein the polyethylene terephthalate fibers spun at a high speed are drawn.
10. The process of claim 1, wherein the polyethylene terephthalate fibers are textured after being spun.
11. The process of claim 10, wherein the polyethylene terephthalate fibers are textured by the use of a blowing jet process.
12. A process for the manufacture of a space-dyed polyester yarn, comprising the steps of:
melt-spinning a polyethylene terephthalate fiber at a speed of at least 4,000 meters per minute: collecting the yarn in a suitable form; printing the yarn in said form with a dye paste and thereafter setting the dye in the paste in the poly-ethylene terephthalate at a temperature of about 102°C.
melt-spinning a polyethylene terephthalate fiber at a speed of at least 4,000 meters per minute: collecting the yarn in a suitable form; printing the yarn in said form with a dye paste and thereafter setting the dye in the paste in the poly-ethylene terephthalate at a temperature of about 102°C.
13. The process of claim 12, wherein the yarn is collected in the form of a knitted material, woven warp sheet, hank, tufted, nonwoven, or yarn package form.
14. The process of claim 13, wherein the polyethylene terephthalate is blended with a combination of wool or poly-acrylonitrile fibers prior to imprinting.
15. A polyester yarn dyed according to the process of claim 1, 12 or 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3430647 | 1984-08-21 | ||
| DEP3430647.1 | 1984-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1258958A true CA1258958A (en) | 1989-09-05 |
Family
ID=6243500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000489167A Expired CA1258958A (en) | 1984-08-21 | 1985-08-21 | Polyester yarns dyed according to the space dyeing method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1258958A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8735457B2 (en) | 2008-09-30 | 2014-05-27 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US8741972B2 (en) | 2008-09-30 | 2014-06-03 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
-
1985
- 1985-08-21 CA CA000489167A patent/CA1258958A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8735457B2 (en) | 2008-09-30 | 2014-05-27 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US8741972B2 (en) | 2008-09-30 | 2014-06-03 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US9187638B2 (en) | 2008-09-30 | 2015-11-17 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US9187849B2 (en) | 2008-09-30 | 2015-11-17 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US9309609B2 (en) | 2008-09-30 | 2016-04-12 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US9695313B2 (en) | 2008-09-30 | 2017-07-04 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US10131784B2 (en) | 2008-09-30 | 2018-11-20 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US10214643B2 (en) | 2008-09-30 | 2019-02-26 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US10920071B2 (en) | 2008-09-30 | 2021-02-16 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
| US10920072B2 (en) | 2008-09-30 | 2021-02-16 | Columbia Insurance Company | Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same |
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