CN201390811Y - Hollow fiber - Google Patents
Hollow fiber Download PDFInfo
- Publication number
- CN201390811Y CN201390811Y CN200920039325U CN200920039325U CN201390811Y CN 201390811 Y CN201390811 Y CN 201390811Y CN 200920039325 U CN200920039325 U CN 200920039325U CN 200920039325 U CN200920039325 U CN 200920039325U CN 201390811 Y CN201390811 Y CN 201390811Y
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- CN
- China
- Prior art keywords
- hollow fiber
- fiber
- doughnut
- good
- section
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- 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
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Abstract
The utility model relates to a hollow fiber which has good elasticity; the section of the hollow fiber is formed by a left part and a right part which are in parallel jointed in an overlapping way, and the section of the hollow fiber is round; in a preferable proposal, the material of the left part is PE, the material of the right part is PP. the hollow fiber can be spun into various specifications according to the requirements, and the common fiber is short fiber with 3-7dtex of fiber number and 20-70mm of length; two materials are adopted to carry out compound spinning through a specific spinneret plate, the obtained hollow fiber is double-component parallel hollow fiber which can be curled naturally and permanently; the PE and PP have good compatibility, the double-component interfaces of the hollow fiber have good caking property and uniformity, so as to lead spinning to be carried out easily; in addition, the obtained hollow fiber has good resistance to compression and compression rebound elasticity while keeping the warming and puffy performances of the common hollow fiber.
Description
Technical field
The utility model relates to a kind of doughnut.
Background technology
Doughnut is the abbreviation that cross section has the chemical fibre of cavity vertically, and its cavity provides still air, thereby has improved the warmth retention property of fiber, has increased the surface area in the unit volume, thereby has improved the bulkiness of fiber.But common doughnut is crushed under mechanism easily, and resistance to compression and compression resilience are relatively poor.
The utility model content
The utility model provides a kind of doughnut, has good elasticity.
Described doughnut, cross section are overlapped side by side by left part and right part and form.
The cross section of described doughnut is circular.
As preferred version, described left part material is PE, and the right part material is PP.
Doughnut described in the utility model can be spun into all size as requested, and commonly used is that fiber number is 3-7dtex, and length is the staple fibre of 20-70mm.
The utility model adopts two kinds of materials, by specific spinnerets, carries out composite spinning, and the doughnut of acquisition is a bi-component doughnut arranged side by side, can produce nature, lasting curling.PE and PP compatibility are good, the bi-component interface adhesion and the good uniformity of doughnut, thus not only be easy to spinning, and the gained fiber is when keeping common doughnut warmth retention property and bulkiness, and resistance to compression and compression resilience are good.
Description of drawings
Fig. 1 is the utility model sectional view.
The specific embodiment
Make doughnut as shown in Figure 1 as follows:
The mass ratio of PE and PP is 50: 50, extrude by double screw extruder, wherein PE extruder temperature control: 200 ℃～215 ℃ in a district, 210 ℃～230 ℃ in two districts, 220 ℃～245 ℃ in three districts, 230 ℃～250 ℃ in four districts, 235 ℃～265 ℃ in five districts, PP extruder temperature control: 210 ℃～230 ℃ in a district, 220 ℃～240 ℃ in two districts, 235 ℃～255 ℃ in three districts, 245 ℃～265 ℃ in four districts, 250 ℃～270 ℃ in five districts, two kinds of melts extruding are respectively after measuring pump accurate measurement separately, enter composite spining module by isometric distributing pipe respectively,, carry out composite spinning by spinnerets.Spinneret hole is a C shape, and the two kinds of melt mixed of last one spinnerets before going out spinneret orifice are from spinneret hole ejection composite fibre melt thread.Composite fibre melt thread is beneficial to the road, back by slow cooling curing earlier and reels, wherein the slow cooling district adopts exhausting formula lateral blowing down, wind speed 1.7-2.2m/s wherein, 16～20 ℃ of wind-warm syndrome, cooled tow carries out pre-network after thread guide oils, again through draw-off godet 1 and draw-off godet 2, finally enter the undrafting wire that the reel system coiling makes core-sheath compound fibre, winding speed 650-1400m/min.More than the undrafting wire normal temperature balance 12h, after carrying out, spin drawing-off, behind 1～1.04 times of the normal temperature preliminary draft, carry out one-level drawing-off (70-85 ℃ of oil bath drawing-off, drafting multiple 3-4.5), carry out secondary drawing-off (by 90-105 ℃ heat setting machine) then, drafting multiple 1-1.8 enters steam chest then 90-105 ℃ of following obvolvent moulding, curls to oil the back 60-105 ℃ of loose typing down, final cutting, packing, obtain doughnut as shown in Figure 1, the fibre section is circular, is overlapped side by side by left part 1 and right part 2 to form, the left part material is PE, and the right part material is PP.
Doughnut of the present utility model, physical property is as shown in table 1:
Table 1
| Project | Unit | Index |
| Fiber number | dtex | 2.22±0.25 |
| Fracture strength | CN/dtex | 3.3±0.2 |
| Elongation at break | ％ | 130±20 |
| Fault | mg/100g | 8 |
| Moisture regain | ≤％ | 0.4 |
| Crispation number | Individual/25mm | 26.5±2.5 |
| Crimp percent | ％ | 30±3 |
| Spring rate curls | ％ | 75±3 |
| Crimp recovery | ％ | 23±2 |
| Compare resistance | Ω | ≤5×108 |
Claims (5)
1. a doughnut is characterized in that the cross section is formed by left part and right part overlap joint arranged side by side.
2. doughnut as claimed in claim 1, the cross section that it is characterized in that described doughnut is for circular.
3. doughnut as claimed in claim 1 is characterized in that described left part material is PE, and the right part material is PP.
4. as each described doughnut among the claim 1-3, the fiber number that it is characterized in that described doughnut is 3-7dtex.
5. as each described doughnut among the claim 1-3, it is characterized in that described doughnut is the long staple fibre of 20-70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920039325U CN201390811Y (en) | 2009-04-30 | 2009-04-30 | Hollow fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920039325U CN201390811Y (en) | 2009-04-30 | 2009-04-30 | Hollow fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390811Y true CN201390811Y (en) | 2010-01-27 |
Family
ID=41597634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920039325U Expired - Lifetime CN201390811Y (en) | 2009-04-30 | 2009-04-30 | Hollow fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323258A (en) * | 2020-10-10 | 2021-02-05 | 佛山市裕丰无纺布有限公司 | Hot air fluffy cloth manufacturing process |
| CN114150401A (en) * | 2021-12-17 | 2022-03-08 | 江苏江南高纤股份有限公司 | Preparation method of elastic side-by-side type composite short fiber |
-
2009
- 2009-04-30 CN CN200920039325U patent/CN201390811Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323258A (en) * | 2020-10-10 | 2021-02-05 | 佛山市裕丰无纺布有限公司 | Hot air fluffy cloth manufacturing process |
| CN114150401A (en) * | 2021-12-17 | 2022-03-08 | 江苏江南高纤股份有限公司 | Preparation method of elastic side-by-side type composite short fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |