CN201553838U - Thermosensitive shape memory polyurethane covered yarn - Google Patents
Thermosensitive shape memory polyurethane covered yarn Download PDFInfo
- Publication number
- CN201553838U CN201553838U CN200920199368XU CN200920199368U CN201553838U CN 201553838 U CN201553838 U CN 201553838U CN 200920199368X U CN200920199368X U CN 200920199368XU CN 200920199368 U CN200920199368 U CN 200920199368U CN 201553838 U CN201553838 U CN 201553838U
- Authority
- CN
- China
- Prior art keywords
- yarn
- shape memory
- memory polyurethane
- outsourcing
- temperature
- 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 - Fee Related
Links
Images
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The utility model discloses a thermosensitive shape memory polyurethane covered yarn which comprises a central yarn and a wrap yarn coated outside the central yarn, the central yarn adopts a thermosensitive shape memory polyurethane filament, and the diameter ratio between the wrap yarn and the central yarn is 0.1 to 1.0. Compared with the covered yarn structure of other fibers, the thermosensitive shape memory polyurethane provided by the utility model has stronger fabric wrinkling prevention capability and better elasticity, is easy to be recovered to initiate form and can be widely used.
Description
Technical field
The utility model relates to field of textiles, relates in particular to a kind of temperature-sensitive shape memory polyurethane and other fibroplastic wrap yarns.
Background technology
From nineteen nineties, along with the development of China's textile industry, the trend of kind and function diversification has appearred in the production of wrap yarn.Wrap yarn is a kind of yarn of new structure, and it is to be yarn core with the long filament, another kind of long filament of outsourcing or staple fibre yarn, and the outsourcing yarn coats heart yarn in a screw fashion.Its characteristics for bar do even, bulk plentiful, the smooth filoplume of yarn is few, powerful high, little breakage.Wrap yarn is selected suitable heart yarn and outsourcing yarn according to purposes, and its brute force is all higher than any single thread.Although wrap yarn has obtained application more and more widely.
The temperature-sensitive shape memory is meant and has initial configuration that the goods of (playing primary state) after (deformation states) fixed in deformation, can recover the characteristic of its original shape again by the effect of heat.The most promising most important applications of shape-memory material is mainly in fields such as biomedical, weaving dress ornament, toy, packing, defence and militaries.In weaving, can be used as yarn core and other various fibers spin the various yarns with shape memory effect.
Chinese invention patent 200410049303.9 discloses a kind of shape memory fiber by shape memory polyurethane preparation and preparation method thereof, described shape memory polyurethane is by the organic hydroxyl polymer-containing of raw material, chain extender, vulcabond, end-capping reagent, and its mol ratio is 1: 1-3: 2.4-4.8: 0.8-1.6 makes.The preparation method of shape memory fiber provided by the invention comprises step (1): the excessive shape memory polyurethane of preparation isocyanates; And step (2): in the polyurethane that step (1) obtains, add end-capping reagent, obtain the shape memory polyurethane of end-blocking, prepare shape memory fiber through melt spinning.Shape memory fiber provided by the invention has extremely wide temperature regulating range, it shows the good practicability energy at aspects such as elasticity, brute force and shape-memory properties, and comfortable feel, spin separately easily or with other synthetic fiber, natural fibre blended, in field extensive application such as textile garment, bio-medical materials.
But the research about shape memory polyurethane wrap yarn concrete structure is still few, and clad structure all can produce crucial influence to intensity, the quality of yarn.
Summary of the invention
The utility model provides a kind of intensity good, the temperature-sensitive shape memory polyurethane wrap yarn that memory performance is superior.
A kind of temperature-sensitive shape memory polyurethane wrap yarn comprises center yarn and the outsourcing yarn that is coated on yarn surface, center, and described center yarn is a temperature-sensitive shape memory polyurethane long filament; The diameter of described outsourcing yarn is 0.1～1.0 with the diameter ratio of center yarn.
Diameter ratio as the diameter of preferred described outsourcing yarn and center yarn is 0.2～0.5.
Because when yarn is stretched to fracture, not all center yarn and all outsourcing yarns all rupture on the rupture cross section, but a part of fibrous fracture, another is the fiber slippage partly, and that of fracture partly fiber neither rupture simultaneously, the coating ratio of this fracture property and single thread force and outsourcing yarn has confidential relation, increase along with diameter with the diameter ratio of center yarn of outsourcing yarn, frictional force between the yarn reduces, easily slide between outsourcing yarn and the center yarn, and certainty ratio crosses conference to increase between yarn center yarn and the outsourcing yarn fiber stress distribution irregular, and the asynchronism of aggravation fibrous fracture all reduces the brute force of yarn and elasticity; Otherwise ratio is dwindled, and the machine that coats is required just constantly to improve, and corresponding production cost also just constantly increases.So, when the diameter ratio of the diameter of outsourcing yarn and center yarn was 0.2～0.5, the fixed in shape rate of yarn reached more than 84% after tested, and shape recovery ratio reaches more than 81%, shape memory effect is better, and the intensity of yarn, elasticity and glossiness all are in reasonable state.
The yarn types of described outsourcing yarn can be staple fibre single thread, strand or long filament.
Described outsourcing yarn can select single yarn, many yarns of the same race or many xenogenesis yarns to coat when coating, and when many single coatings of the simple employing of cladding ratio in the same way of outsourcing yarn employing, the fabric that is made into dyes the back fabric appearance and will get well.
The coating form of described outsourcing yarn is to coat in the same way or to intersect to coat, coat in the same way for S to coat or Z to coating.
The non-uniformity of described wrap yarn yarn texture is lower than 12%.
Described outsourcing yarn can be selected in cotton fiber, wool fibre, flax fibre, silk fiber and the chemical fibre one or more according to the cloth of the different purposes of weaving.The fabric of selecting for use cotton fiber to do the formation of outsourcing yarn has air permeability and good, hygroscopicity, comfort, has the restorability of better elastic and shape again.Select for use wool fibre to do the fabric top grade of outsourcing yarn formation, comfortable, heat insulating ability, good permeability have good elasticity and plasticity again.Select for use flax fibre, silk fiber to do the fabric nature that the outsourcing yarn forms, can wear next to the skin, good luster, good springiness, crease-resistant, easily recover after the sex change.It is cheap to select for use chemical fibre to do the fabric that the outsourcing yarn forms, the ABRASION RESISTANCE height, and shrinkage is good, has purposes widely.
The wrap yarn and the fabric sofetening of temperature-sensitive shape memory polyurethane of the present utility model and other fibers are wear-resisting, wrinkle resistance is strong, good springiness, easy dyeing, yarn and fabric are easier to return to the reset condition that it remembers and eliminate distortion at a certain temperature, can be widely used in the manufacturing of clothings such as shirt, Western-style clothes, utilize this wrap yarn can also produce multiple colored type, color, the lining that various aspects of performance such as elastic strength are good.
Description of drawings
Fig. 1 is the utility model temperature-sensitive shape memory polyurethane wrap yarn structural representation;
Fig. 2 is the structural representation of the another kind of embodiment of the utility model temperature-sensitive shape memory polyurethane wrap yarn;
Fig. 3 is the structural representation of the third embodiment of the utility model temperature-sensitive shape memory polyurethane wrap yarn.
The specific embodiment
Embodiment 1
Referring to Fig. 1, the utility model temperature-sensitive shape memory polyurethane wrap yarn is made of center yarn 21 and the outsourcing yarn 22 that is coated on center yarn 21 surfaces, adopts single outsourcing yarn to coat.
Temperature-sensitive shape memory polyurethane wrap yarn deformation recovery temperature is 30 ℃～70 ℃.Under the normal temperature, temperature-sensitive shape memory polyurethane wrap yarn keeps original flat shape, is out of shape through stretching repeatedly and bending the back wrap yarn.Wrap yarn is put into 45 ℃ water, and wrap yarn returns to original-shape very soon.When wrap yarn is not subjected to the external force effect, wrap yarn still kept original flat shape when temperature dropped to normal temperature.When being subjected to 328cN external force or bigger external force, wrap yarn does the time spent, the wrap yarn fracture.
Embodiment 2
Referring to Fig. 2, the temperature-sensitive shape memory polyurethane wrap yarn in the present embodiment is made of center yarn 31 and the outsourcing yarn 32 that is coated on center yarn 31 surfaces, adopts two outsourcing yarns to coat.
Temperature-sensitive shape memory polyurethane wrap yarn deformation recovery temperature is 30 ℃～70 ℃.Wrap yarn is put into 50 ℃ water, and wrap yarn returns to original-shape very soon.When wrap yarn is not subjected to the external force effect, wrap yarn still kept original flat shape when temperature dropped to normal temperature.When being subjected to 403cN external force or bigger external force, wrap yarn does the time spent, the wrap yarn fracture.
Embodiment 3
Referring to Fig. 3, the temperature-sensitive shape memory polyurethane wrap yarn in the present embodiment is made of center yarn 41 and the outsourcing yarn 42 that is coated on center yarn 41 surfaces, adopts two outsourcing yarns to intersect and coats.
Temperature-sensitive shape memory polyurethane wrap yarn deformation recovery temperature is 30 ℃～70 ℃.Wrap yarn is put into 42 ℃ water, and wrap yarn returns to original-shape very soon.When wrap yarn is not subjected to the external force effect, wrap yarn still kept original flat shape when temperature dropped to normal temperature.When being subjected to 647cN external force or bigger external force, wrap yarn does the time spent, the wrap yarn fracture.
Claims (5)
1. a temperature-sensitive shape memory polyurethane wrap yarn comprises center yarn and the outsourcing yarn that is coated on yarn surface, center, and it is characterized in that: described center yarn is a temperature-sensitive shape memory polyurethane long filament; The diameter of described outsourcing yarn is 0.1～1.0 with the diameter ratio of center yarn.
2. temperature-sensitive shape memory polyurethane wrap yarn as claimed in claim 1 is characterized in that, the diameter of described outsourcing yarn is 0.2～0.5 with the diameter ratio of center yarn.
3. temperature-sensitive shape memory polyurethane wrap yarn as claimed in claim 1 or 2 is characterized in that, described outsourcing yarn is one or more in cotton fiber, wool fibre, flax fibre, silk fiber, the chemical fibre.
4. temperature-sensitive shape memory polyurethane wrap yarn as claimed in claim 3 is characterized in that, the coating form of described outsourcing yarn coats for coating in the same way or intersecting.
5. temperature-sensitive shape memory polyurethane wrap yarn as claimed in claim 4 is characterized in that, described intersection coats and adopts two outsourcing yarns, and wherein an outsourcing yarn is a cotton fiber, and another root outsourcing yarn is a terylene thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920199368XU CN201553838U (en) | 2009-10-29 | 2009-10-29 | Thermosensitive shape memory polyurethane covered yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920199368XU CN201553838U (en) | 2009-10-29 | 2009-10-29 | Thermosensitive shape memory polyurethane covered yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553838U true CN201553838U (en) | 2010-08-18 |
Family
ID=42613514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920199368XU Expired - Fee Related CN201553838U (en) | 2009-10-29 | 2009-10-29 | Thermosensitive shape memory polyurethane covered yarn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553838U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936776A (en) * | 2012-11-19 | 2013-02-20 | 西安工程大学 | Preparation method of wool fiber core spun yarn |
| CN103437016A (en) * | 2013-08-05 | 2013-12-11 | 浙江凯发新材料有限公司 | Real silk wrap yarn and processing method thereof |
| CN106559982A (en) * | 2014-05-20 | 2017-04-05 | 3M创新有限公司 | For the lanyard of personal protective device such as hearing protection |
| CN109183227A (en) * | 2018-11-27 | 2019-01-11 | 浙江桐基羊绒发展有限公司 | A kind of Novel wool blended knitting yarn and its preparation process |
| CN111788343A (en) * | 2018-03-01 | 2020-10-16 | 洛罗·比亚那股份公司 | Method for manufacturing stretch fabrics comprising plant fibers and stretch fabrics manufactured by such method |
-
2009
- 2009-10-29 CN CN200920199368XU patent/CN201553838U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936776A (en) * | 2012-11-19 | 2013-02-20 | 西安工程大学 | Preparation method of wool fiber core spun yarn |
| CN103437016A (en) * | 2013-08-05 | 2013-12-11 | 浙江凯发新材料有限公司 | Real silk wrap yarn and processing method thereof |
| CN106559982A (en) * | 2014-05-20 | 2017-04-05 | 3M创新有限公司 | For the lanyard of personal protective device such as hearing protection |
| CN111788343A (en) * | 2018-03-01 | 2020-10-16 | 洛罗·比亚那股份公司 | Method for manufacturing stretch fabrics comprising plant fibers and stretch fabrics manufactured by such method |
| CN109183227A (en) * | 2018-11-27 | 2019-01-11 | 浙江桐基羊绒发展有限公司 | A kind of Novel wool blended knitting yarn and its preparation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201545991U (en) | Shape memory polyurethane lapping yarn | |
| CN1107751C (en) | Composite textured yarn, process for its production, woven or knitted fabrics made thereof, and apparatus for producing it | |
| JP2018521239A (en) | Recombinant protein fiber yarn with improved properties | |
| TW201000704A (en) | Stretch wovens with separated elastic yarn system | |
| CN201553838U (en) | Thermosensitive shape memory polyurethane covered yarn | |
| CN104278386A (en) | Polyester elastic yarn, production method of polyester elastic yarn and fabric made of polyester elastic yarn | |
| CN102560828B (en) | High-emulation bamboo joint longitude and latitude heterochromatic textile and preparation method thereof | |
| CN105332135A (en) | Cotton-feeling polyester elastic yarn and elastic fabric manufacture therefrom | |
| CN105506814A (en) | Polyester-and-viscose-blended AB yarn wool-like fabrics and manufacturing method thereof | |
| Gong et al. | Advanced weaving technologies for high-performance fabrics | |
| CN101724963A (en) | Memory metal material | |
| CN114599829A (en) | Composite elastic yarn, stretch fabric, and method for producing composite elastic yarn | |
| CN101812754A (en) | Process for producing special covered yarn and product thereof | |
| CN100999848A (en) | Veloutine fabric using wool and modified dacron miced spinning and tech. ethereof | |
| ITPI20100123A1 (en) | ELASTICIZED YARN, ELASTICIZED FABRIC PRODUCED WITH THESE ELASTICIZED YARN AND METHOD FOR THE PRODUCTION OF THESE YARN | |
| CN208118603U (en) | A kind of antibacterial thermal insulating cashmere-like fabric | |
| CN101629347A (en) | Compound silk-cloth fabric | |
| JP2014208919A (en) | Clothing polyester crimped yarn and clothing woven or knitted fabric comprising the same | |
| CN108950850A (en) | A kind of production method stretching discoloration polyester-cotton blend spandex blended knitted fabric | |
| CN107447339A (en) | One kind glues bright and beautiful double-contracting simulating hemp-simulating surfacing material | |
| CN201087237Y (en) | Compound silk cloth facing material | |
| CN108085809A (en) | A kind of machine washable cashmere fiber product method for weaving | |
| CN201224797Y (en) | Memory metal fabric | |
| CN207227666U (en) | The viscous bright and beautiful double-contracting simulating hemp-simulating surfacing material of one kind | |
| CN201049992Y (en) | Wool and modified terylene blended spinning woolen cloth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20101029 |