CN201520844U - Chemical fiber with high optical shielding performance - Google Patents
Chemical fiber with high optical shielding performance Download PDFInfo
- Publication number
- CN201520844U CN201520844U CN2009201164573U CN200920116457U CN201520844U CN 201520844 U CN201520844 U CN 201520844U CN 2009201164573 U CN2009201164573 U CN 2009201164573U CN 200920116457 U CN200920116457 U CN 200920116457U CN 201520844 U CN201520844 U CN 201520844U
- Authority
- CN
- China
- Prior art keywords
- skin
- cortex
- sandwich layer
- high optical
- optical shielding
- 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
Images
Abstract
A chemical fiber with high optical shielding performance provided in the utility model is provided with a skin core structure. A skin layer (1) in the skin core structure is formed by adding 60-75 times of strands of TiO2 high polymer monofilaments (3), a core layer (2) is formed by adding 25-40 times of strands of metallic silicon high polymer monofilaments, and the multiples of strands of the skin layer and the core layer are the same. Compared with the prior art, the provided fiber has strong absorption effect of internal reflection light and high refractive index, and causes manufactured textile to have good visual shielding effect within visible light waveband and be capable of preventing a near-infrared camera from perspective pickup within near-infrared waveband. The chemical fiber adopts the skin core structure in true sense and the core layer can improve the content of opacifier in metallic silicon to achieve the visual shielding effect meeting the requirement. The skin layer adopts TiO2 with low content, thus preventing the friction and abrasion against processing equipment.
Description
Technical field the utility model relates to a kind of chemical fibre of high optical shielding, especially for the garment material fiber that the shading requirement is arranged, belongs to the technical field of used additives manufacturing artificial filament in the weaving.
The covering property of optics of background technology clothes clothes lining has very big relation for the serious and clothing color of dress abundant, easily expose underwear and body during as covering property of summer clothes material optics difference, easier exposure health was quite very not dignified, refined after swimming suit fell into water.Therefore, for clothes, wish to adopt the material with good optical screening effect, promptly garment material is will possess the performance that visually will intercept light at least.In addition, began in the society in recent years to occur not having the indecent behavior that my good man scholar adopts infrared camera to take exposure of person's photograph across clothes in summer, and, also required to have technically the dress materials of anti-near-infrared perspective shooting to use for the consumer to this.
The vision screening effect of clothes is relevant with color, thickness, the coverage coefficient of garment material, if promptly select for use its light-proofness of lining of dark color, big thickness and high coverage rate all right.But season, weather conditions and occupation require these parameters of clothes are had the selection of basic fixed, and being not easy has big variation for improving covering property of vision.For example naval's summer uniform, customs's uniform adopt white lining by international practice, can not change other colors in order to take into account covering property of vision; For improving screening performance lining thickening encryption also is unfavorable for snugness of fit.Therefore, effectively improve the vision screening effect and the shooting of anti-infrared camera perspective of clothes, have this approach of optics screening performance that improves fiber only.
The approach of the optics screening performance of existing raising fiber comprises: (1) adopts opacifier co-blended spinning, degree of deflection, the increase reflection approach of employing interface composite construction as much as possible to increase incident ray of high index of refraction, absorbs the incident light-wave energy in reflection approach as much as possible; (2) on the basis that does not influence the final finished fibre whiteness, adopt the high coloured powder of light wave absorptivity at unexposed interior zone as far as possible, to increase absorption to incident light wave.The white summer uniform lining of naval equipment has adopted with conventional delustering agent TiO in changing the outfit in 2007 as the Chinese People's Liberation Army
2For the core-sheath composite structure vision of opacifier is covered fiber.Because TiO
2The opacifier too high levels can influence spinnability, so this technology has reached the limit of spinnability under the addition about 7%, be that its shielding efficiency that can reach has also reached the limit, and in fact this addition screening performance that can reach reach far away and require.Secondly this technology mediopellis has adopted identical macromolecular material with sandwich layer, and promptly the optical property of cortex and core structure is consistent, so in fact do not reach the practical function of skin-core structure.
Summary of the invention is at above-mentioned deficiency, and the utility model is exactly to propose a kind of limited chemical fibre that makes covering property be restricted the high optical shielding of situation of addition of breaking through.
The chemical fibre of the high optical shielding that the utility model provides has skin-core structure, the cortex in the said skin-core structure be with the interpolation of 60～75 multiple thighs TiO
2The high molecular polymer monofilament constitute, sandwich layer is that the high molecular polymer monofilament that is added with metallic silicon with 25～40 multiple thighs constitutes, cortex is identical with the multiple of sandwich layer number of share of stock.
The refractive index of metallic silicon (also claim industrial silicon, silicon metal, be high purity silicon) is 3.2～3.5, and it keeps high index near infrared band, metallic silicon is added on sandwich layer after, make incident light wave realize at the fiber sandwich layer that frequent internal reflection causes at high proportion and absorb.Adopt TiO simultaneously
2Powder is the fibrocortex opacifier, makes it to cover the tone of gray of sandwich layer silicon, and reduces the fretting wear of fiber to following process equipment.More make cortex and sandwich layer increase refraction effect with different high molecular polymers.Compared with prior art, the fiber that the utility model provides has very big reflects light assimilation effect, high refractive index, makes the textiles of making have good vision screening effect, can prevent the shooting of near infrared camera perspective near infrared band at visible light wave range.The utility model fiber has adopted skin-core structure truly, and sandwich layer can improve metallic silicon opacifier content, reaches the vision shielding function that meets the demands; Cortex adopts the TiO of lower content
2, prevented fretting wear to process equipment.
The material of said cortex and sandwich layer is respectively any two kinds cooperation among PET or PTT or PA or the PBT.
It is in 3～9% of gross weight that silicon in the said sandwich layer adds weight, TiO in the cortex
2Adding weight is in 1～4% of gross weight.
The purity of said metallic silicon is more than 98%, and granularity is below 300nm, and refractive index is 3.3～3.5.Said TiO
2Be rutile-type, granularity is below 200nm, and refractive index is 2.6～2.9.
The chemical fibre of the high optical shielding that the utility model provides, the monofilament section that constitutes cortex and/or sandwich layer is polygonal, limit number identical or inequality is arranged between cortex and the sandwich layer, further enlarge cortex and sandwich layer boundary reflection effect to utilize complicated interface to increase the reflection chance.
Said polygon is regular polygon or just polygonal star normally, and the limit number of regular polygon or just polygonal star is 6～12, and shape forms with common drawing process by regular polygon or just polygonal star spray silk nib.
The number of share of stock ratio of monofilament is 35: 65 in the chemical fibre of the high optical shielding that the utility model provides, said sandwich layer and cortex.
Description of drawings Fig. 1 is the sectional view of the utility model one embodiment perfect condition, and 1 is cortex among the figure, and 2 is sandwich layer, and 3 is monofilament.
The specific embodiment is carried out concrete description below by embodiment to the utility model, is necessary to be pointed out that at this present embodiment only is used for the utility model is further detailed, and can not be interpreted as the restriction to the utility model protection domain.
Core material: containing 7% (mass ratio) purity among the PA is 99%, and granularity is: d
50The metallic silicon of=0.23 μ m.
Cortical material: containing 3% (mass ratio) granularity among the PET is d
50The rutile TiO of=0.12 μ m
2
With 72 strands of monofilament of skin and 37 strands of monofilament of core through roller feeding, drawing-off, false twisting, HEAT SETTING, core-skin composite network, oil, be spun into fiber after the package.
The fibre section: core-skin composite fiber integral body is the circular section, and the cross section that constitutes the monofilament 3 of cortex 1 and sandwich layer 2 is the positive hexagram (as shown in Figure 1) on 12 limits.
The gained core-skin composite fiber on composite spinning machine, spin POY, and through adding bullet processing (wherein the one-tenth silk specification of DTY is 345dtex/144f).To obtain quality be 190g/m through weaving dyeing and finishing processing again
2The anti-printing opacity lining of white.
Contrast test: under the D65 light source more than the illumination 400lx, the anti-printing opacity fabric of this white lies in the GB/T 250 evaluation variable colors of amplification with on the one-level standards of chromatic aberration colour atla in the ash card, contrast GB/T250-1995 standard, the ash card aberration of observing through fabric manifested reaches 4～5 grades of aberration, object by its covering, substantially can not find out has color distortion, illustrates to have good covering performance.In contrast, all adopt TiO
2For the anti-printing opacity lining of the same size of opacifier, under identical evaluation method, can only reach 3～4 grades of aberration, promptly its covering property is relatively poor.
Claims (4)
1. the chemical fibre of a high optical shielding has skin-core structure, it is characterized in that cortex in the said skin-core structure be with the interpolation of 60～75 multiple thighs TiO
2The high molecular polymer monofilament constitute, sandwich layer is that the high molecular polymer monofilament that is added with metallic silicon with 25～40 multiple thighs constitutes, said cortex is identical with the multiple of sandwich layer number of share of stock.
2. the chemical fibre of high optical shielding as claimed in claim 1, the monofilament section that it is characterized in that constituting cortex and/or sandwich layer is polygonal, and limit number identical or inequality is arranged between cortex and the sandwich layer.
3. the chemical fibre of high optical shielding as claimed in claim 2, it is characterized in that said polygon normally regular polygon or just polygonal star, the limit number of regular polygon or just polygonal star is 6～12, and shape forms with common drawing process by regular polygon or just polygonal star spray silk nib.
4. the chemical fibre of high optical shielding as claimed in claim 1 is characterized in that the number of share of stock ratio of monofilament in said sandwich layer and the cortex is 35: 65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201164573U CN201520844U (en) | 2009-03-24 | 2009-03-24 | Chemical fiber with high optical shielding performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201164573U CN201520844U (en) | 2009-03-24 | 2009-03-24 | Chemical fiber with high optical shielding performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520844U true CN201520844U (en) | 2010-07-07 |
Family
ID=42507021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201164573U Expired - Lifetime CN201520844U (en) | 2009-03-24 | 2009-03-24 | Chemical fiber with high optical shielding performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520844U (en) |
-
2009
- 2009-03-24 CN CN2009201164573U patent/CN201520844U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101570901B (en) | Chemical fiber with high optical shielding | |
| CN102534861B (en) | High-optical shading parallel composite elastic fiber | |
| TWI551742B (en) | Sheath-core compound fiber, false twist textured yarn composed thereof, method for manufacturing the same, and woven knit fabric including the fiber | |
| CN102011214B (en) | Sheath-core composite fiber and production method thereof | |
| EP2443275B1 (en) | Ultraviolet protective fabrics based on man-made cellulosic fibres | |
| CN101377024A (en) | Anti-ultraviolet polyester fiber and producing method thereof | |
| US20140335354A1 (en) | Polyester composite fiber with excellent heat-shielding property and coloration | |
| CN201981301U (en) | Bilateral composite elastic fiber with high optical shielding | |
| CN208667921U (en) | A kind of blunt fiber optics | |
| WO2005075722A1 (en) | Air-jet interlacing spun yarn and woven fabric including the same | |
| TW201930668A (en) | High-transparency-resistance core sheath composite fiber and fabric | |
| CN201520844U (en) | Chemical fiber with high optical shielding performance | |
| US20030215632A1 (en) | Filament having ultraviolet ray hiding effect and fabric manufactured from said filament | |
| JP2947662B2 (en) | Opacity. Waterborne and underwear composite fiber with excellent heat shielding and coloring | |
| CN201224797Y (en) | Memory metal fabric | |
| JP2016113714A (en) | False-twisted hollow multifilament yarn, and woven or knitted fabric | |
| CN105155009A (en) | Orange-type anti-perspective fiber and preparation method thereof | |
| CN104947210A (en) | Orange petal anti-perspective complex fiber and preparation method thereof | |
| CN106854785A (en) | A kind of polyester composite yarn and dense dyeing and weaving thing obtained in it | |
| JP2005325481A (en) | Polyamide sheath-core conjugated fiber having excellent opacity, uv light-shielding property, heat-shielding property, moisture-absorbing or releasing property, and color-developing property and covering elastic yarn and bulky processed yarn using the same | |
| CN216338185U (en) | Gradual change rainbow yarn | |
| WO2022033414A1 (en) | Fabric | |
| JP2018084014A (en) | Knitted fabric excellent in ultraviolet shielding | |
| CN107366034A (en) | A kind of heterotypic fibre of anti-printing opacity | |
| JP2005171400A (en) | Animal hair blended woven fabric and method for manufacturing the same |
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: 20100707 |