GB1261337A - Hot stretching and relaxing polyester yarns - Google Patents
Hot stretching and relaxing polyester yarnsInfo
- Publication number
- GB1261337A GB1261337A GB1567570A GB1567570A GB1261337A GB 1261337 A GB1261337 A GB 1261337A GB 1567570 A GB1567570 A GB 1567570A GB 1567570 A GB1567570 A GB 1567570A GB 1261337 A GB1261337 A GB 1261337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- stretching
- hot
- stretched
- temperatures
- 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
- 229920000728 polyester Polymers 0.000 title abstract 4
- 230000002040 relaxant effect Effects 0.000 title abstract 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 abstract 1
- 229920013683 Celanese Polymers 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/229—Relaxing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D30/40—Chemical pretreatment of textile inserts before building the tyre
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Tires In General (AREA)
Abstract
1,261,337. Hot stretching and relaxing polyester yarns. CELANESE CORP. 2 April, 1970 [12 May, 1969], No. 15675/70. Heading B5B. Filamentary polyester yarn, wherein the polyester is composed of at least 85% by weight of a polymeric ester of a dihydric alcohol and terephthalic acid is hot stretched by at last 8% and then hot-relaxed at least 7%, based on the original length of the yarn at a temperature lower than any used in stretching it and between 325‹ F. and 400‹ F., the net change in length being not more than 2% of the original length. In accordance with these conditions the yarn may be stretched by from 8 to 16% and relaxed by from 7 to 14%. The yarn may be stretched at temperatures of from 390‹ to 490‹ F. The yarn may be passed through two or more heating zones at successively higher temperatures before relaxation, stretching being effected in at least one of the zones and the yarn being maintained under sufficient tension to prevent it from shrinking in the zone(s) wherein stretching is not being effected. A composition for securing adhesion of the yarn to rubber may be applied to the yarn and dried thereon before the yarn is hot stretched. The yarn may be composed of filaments consisting of polyethylene terephthalate having an intrinsic viscosity of between 0À7 and 1À5 decilitres/gram (as measured in o-chlorophenol at 25‹ C. The term " yarn " is defined as including mono-filaments and multi-filament bundles with or without twist, but excluding spun staple fibre yarn. By means of the invention yarns can be obtained which can be further processed at temperatures at least up to the relaxation temperature used with negligible, if any, decrease in strength, while yarns treated under standard conditions lose 12 to 15% of their strength at temperatures reached during rubber-curing operations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82395569A | 1969-05-12 | 1969-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1261337A true GB1261337A (en) | 1972-01-26 |
Family
ID=25240234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1567570A Expired GB1261337A (en) | 1969-05-12 | 1970-04-02 | Hot stretching and relaxing polyester yarns |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA938433A (en) |
| DE (1) | DE2022748A1 (en) |
| FR (1) | FR2047490A5 (en) |
| GB (1) | GB1261337A (en) |
| LU (1) | LU60869A1 (en) |
| NL (1) | NL7006821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883629A (en) * | 1985-06-19 | 1989-11-28 | Viscosuisse Sa | Process for the production of dimension-stable polyester tire cord |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101525A (en) * | 1976-10-26 | 1978-07-18 | Celanese Corporation | Polyester yarn of high strength possessing an unusually stable internal structure |
| CH671243A5 (en) * | 1986-08-18 | 1989-08-15 | Mettler Soehne Maschf | |
| EP3086952A2 (en) * | 2013-12-25 | 2016-11-02 | Kordsa Global Endustriyel Iplik ve Kord Bezi Sanayi ve Ticaret Anonim Sirketi | Pneumatic radial tire |
-
1970
- 1970-04-02 GB GB1567570A patent/GB1261337A/en not_active Expired
- 1970-04-15 CA CA080236A patent/CA938433A/en not_active Expired
- 1970-05-06 LU LU60869D patent/LU60869A1/xx unknown
- 1970-05-08 FR FR7016818A patent/FR2047490A5/fr not_active Expired
- 1970-05-09 DE DE19702022748 patent/DE2022748A1/en active Pending
- 1970-05-12 NL NL7006821A patent/NL7006821A/xx not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883629A (en) * | 1985-06-19 | 1989-11-28 | Viscosuisse Sa | Process for the production of dimension-stable polyester tire cord |
| US5350632A (en) * | 1985-06-19 | 1994-09-27 | Rhone-Poulenc Viscosuisse S.A. | Impregnated, dimension-stable polyester cord |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2022748A1 (en) | 1970-11-19 |
| FR2047490A5 (en) | 1971-03-12 |
| CA938433A (en) | 1973-12-18 |
| LU60869A1 (en) | 1970-07-07 |
| NL7006821A (en) | 1970-11-16 |
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