TWI339223B - - Google Patents

Description

IX. Description of the invention: [Technical field of the invention] The present invention relates to a sheath/core type composite fiber and a fabric thereof, which are respectively dyed with a stock solution to achieve color. Raw liquid dyeing of thermoplastic plastic fibers and their fabrics at a pure and low dyeing cost. [Prior Art] The application of the raw liquid dyeing to the thermoplastic chemical fiber has been widely used for many years. Since the raw liquid dyeing does not have the problem of waste water generated by bath dyeing, the stock solution is dyed into a very environmentally friendly dyeing method. However, most of the pigments used in the dyeing of the stock solution are more expensive than the dyes used in the bath dyeing. The new 'cheap colorant suitable for the dyeing of the stock solution' is also resistant to the high temperature spinning process required for the dyeing of the stock solution. It is difficult to develop. For this reason, Japanese Laid-Open Patent Publication No. 2001-254229 discloses a method of reducing the amount of waste by adjusting the same colorant, but dyeing the core layer and the raw liquid dyed sheath at different concentrations, thereby reducing the production cost. However, the dyeing cost of the colorant itself cannot be reduced, and there is no extension of the final color range. Further, JP-A-06-128807 discloses a method of dyeing a core layer stock solution into a fluorescent color and dyeing the sheath layer stock solution to a non-fluorescent color, thereby achieving a high-performance fluorescent color. However, this method reduces the purity of the color due to the brighter color in the core layer, and the color expression range is smaller. U.S. Patent No. US2006046055 discloses that the ultrafine fiber precursor solution is dyed to a gray color and then the fiber is dyed by bath dyeing to obtain a darker color and a better color fastness. However, this technique still requires bath dyeing. Therefore, how to make the color range of the stock solution dyed wider, and how to reduce the dyeing cost of the original liquid dyeing has always been an important topic of the rag type composite fiber and its fabric. SUMMARY OF THE INVENTION In order to solve the above-mentioned defects and avoid the absence of the present invention, the object of the present invention is to apply the original solution dyeing to the auxiliary layer of the core-type composite fiber and the core layer, respectively, to achieve pure color, wider and lower color range. The dyeing cost of the stock solution dyes the thermoplastic chemical fiber. In order to achieve the above object, the present invention provides a core-sheath type composite fiber dyed with a stock solution for a core layer of the core-type composite fiber, and a layer of the core layer coated with the core layer; Dyeing uses at least a colored dye, a pigment to make a stock solution, and a side A: when the sheath and the core layer are applied with the same weight percentage of the original money color formula A, the core sheath The composite fiber has at least one filament-counter group maximum county, and the maximum county-to-reflectance value RA; and the core layer uses at least a lower-group color material for stock solution dyeing: (1) black/grey stock solution dyeing formula m, and the stock solution dyeing formula m is: when the paste layer and the financial layer are applied with the same weight percentage of the stock solution dyeing formula, the core type composite fiber has an average reflectance value &amp; and R^RA. (2) Forming the Wei consumption formula B2 from at least - (four) materials and minerals, and the stock solution dyeing formula B2 is: when the occupation layer and the core material are applied with the same weight percentage of the original (four) color formula buckle, the reinforced composite fiber has At least one visible light reflectance maximum peak λ Β 2 ' and a reflectance value &amp;amp; and R Β 2 &lt; (3) A combination of the above-mentioned black/gray stock solution formulation B1 and at least one dye and pigment composition stock solution dyeing formula B2. The sheath layer and the core layer of the composite fiber are respectively dyed with the original liquid to make the 1339223 color thermoplastic chemical fiber of the original color of the color saki, the wrist and the wider color, and the core-sheath type composite fiber. Fabric. Further, the ratio of the wearing area of the sheath layer to the core layer ranges from 20/80 to 95/5. The total coloring matter content of the raw liquid dyeing formula A ranges from 〇〇1〇/〇 to 10% by weight of the sheath layer, and the total color material content of the raw liquid dyeing formula B accounts for 0.01% by weight of the core layer. % to 10〇/〇. Moreover, the polymer used in the core layer and the sheath layer is selected from the group consisting of a polyester resin, a copolymer of polyester, a polyamide resin, a copolymer of polyaluminum, a polypropylene resin, a copolymer of polypropylene, and a polymer. One of Φ of a mixture of a vinyl resin, a polyethylene, and a mixture of the above polymers. The invention has the advantages that the core-sheath type composite fiber dyed by the original liquid disclosed in the invention has the color development property when the sheath layer and the core layer are respectively dyed by the original liquid, so the core-sheath composite fiber dyed by the original liquid according to the present invention is used. Suitable for any thermoplastic chemical fiber application. Moreover, since the sheath layer and the core layer of the core-sheath type composite fiber are respectively subjected to the dyeing of the original liquid to achieve a pure color, a wider color range, and a lower dyeing cost, the raw liquid dyeing thermoplastic chemical fiber. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description and technical description of the present invention are now described by way of example only, but it should be understood that the description of the invention is for illustrative purposes and should not be construed as being The limit. When we use the reflectance of the illuminator in the visible range to analyze the hue of the color, white, gray, black, etc. do not have a clear t-wave I, trough, and other colored dyes and pigments are obvious. High reflectance ίίίί rate trough, the higher the peak, the lighter the color, the brighter the color, the lower the trough, the darker the color, the greater the gap between the crest and the trough, the purer the job color. _ 7 1339223 Please refer to Figure 1 for a schematic view of an embodiment of the present invention. The core-type composite fiber comprises a core layer 1G′ and a sheath layer 2G covering the layer 1G; wherein the original color of the layer 2〇 uses at least one colored (four) material and a pigment composition test dyeing 2A, and the stock solution formulation A is: when the sheath layer 2 and the core layer 1 are applied with the same reset percentage of the stock solution formulation A, the core sheath type composite fiber has at least one visible difference The rate is the highest in the county λΑ, and the maximum turn-to-reflectance value RA. ...long enthusiasm 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶 甶The weight percentage of the following gray matter is stained with § &amp; square 81, and the stock solution dyeing formula is: when the layer 20 and the core layer 10 are applied with the same weight percentage of the original liquid dyeing formula ^, the core sheath type compound The fiber has an average reflection tree & and &amp; 丨 < 〜. The parent layer 1 〇 is black or gray at 400_700 nm for low reflectivity, so the slightly layer ^ reflectance wave _ share and the rate of decline trough (4) Pioneering, but the gap between the county and the vacancy can be kept large, and the color obtained is darker and sharper than the single-component color: and contains the same total color content. The following Example 1, Example 2, and Example 3 or (2) consisting of m secret and lin consisting of the original silk color B pure formula: when the layer 2 〇 and the core layer (1) are applied with the same weight = color When formula B2, the pre-type composite fiber has at least one visible ^. The large peak λ Β 2 ' and the reflectance value of the peak λ 知 are known, where rb λ ' has: the combined reflectivity Ra is reduced by the influence of Rb2, and the peak of the peak &, _, __20 trough portion has 1339223 Strong absorption, so it can maintain the original low reflectivity, the color obtained is darker and purer than the color of the original solution dyed with a single component and contains the same total color content, as in the following Example 4. Example 5, Example 6. Or (3) a combination of the above-mentioned black/grey stock solution formulation B1 and at least one dye, pigment composition stock solution dyeing formula B2. The core-sheath type composite fiber spun dyed in the stock solution of the present invention In the process, as long as the cross-sectional ratio of the sheath layer 20 to the core layer 10 is changed, different colors can be obtained, and the benefits thereof are: the color conversion does not require cleaning of the extruder, the amount of waste yarn is small, and the conversion time is very short. The 'color range is wider' dyeing cost can also be reduced. The ratio of the cross-sectional area of the slightly layer to the core layer ranges from 20/80 to 95/5, and the cross-sectional area shape can be a circular or profiled section. A total color content of A The weight percentage of the sheath layer ranges from 0.01% to 10%, and the total colorant content of the stock solution dyeing formula B ranges from 0.01% to 1〇〇/0 by weight of the core layer. Further, the present invention can be used in any Standard spinning method for production, including without limitation, such as staple fiber, non-woven fabric, melt-blown spinning, single-length long fiber, multi-length long fiber, Lu carpet wire (BCF), air false twist yarn Etc. It can also be falsely processed by any standard false twisting method. ^ Also because the sheath layer 20 and the core layer 10 of the present invention are respectively subjected to color development when dyeing the original liquid, the silk of the present invention The dyed (4) composite fiber is turned over to any thermoplastic chemical fiber, so the core layer 1G and _% can be made of polyester resin, polyester copolymer, poly-ammonia resin, copolymer of poly-ammonia, polypropylene resin, A polypropylene polymer, a polyethylene resin, a copolymer of polyethylene, and one of the above polymers are formed. Moreover, the core layer 10 and the layer 20 can be added with additives such as heat stabilizer, fire retardant, antibacterial agent and the like according to different requirements of 1339223. The effects of the present invention will now be described by way of examples in which the reflectance, hue (L, a, b), and chromaticity comparisons in the examples are obtained by winding a wire sample on a white cardboard.

The Datacolor spectrometer model SF600 is measured on a D65 source with a wavelength of 400-700 nm. The reflectance value is measured as a reflectance per 20 nm, and the l* value is the brightness of the color model CIE 'a* value means that the chroma component is from green to red'. The b* value means that the chroma component is from blue to yellow. (Example 1) Example 1 is a core-sheath type composite polyester fiber dyed with a stock solution of 3 denier per filament. The sheath 20 contains 6% by weight, color index number Pigment Green 7 and 0.3% by weight titanium dioxide, and the core layer 1% contains 1.2% by weight carbon black and 0.3% by weight titanium dioxide, and the sheath layer 20 and the core layer 10 The cross-sectional area ratio is 70/30. The melting temperature at 285 °C, the spinning speed is 4500 m/min, and the extension is 3.2 times. At this time, the stock solution dyeing formula A-1 has both the sheath layer 20 and the core layer 10 in a weight ratio of 0.6%. Color index No. Pigment Green 7 and weight percent 0.3% dioxide _ titanium. Its λ Α = 500 nm ′ reflectance RA = 49.3. However, the stock solution dyeing formula B1-1 has both the sheath layer 20 and the core layer 10 containing 1.2% by weight of carbon black and 0.3% by weight of titanium dioxide. The average reflectance value was 3.2 ^. Comparative Example 1 is a fully extended 3 denier per filament dyed polyester fiber containing 0.42% by weight of Pigment Green 7 and 0.36% by weight of carbon black and 0.3% by weight. %Titanium dioxide. Comparative Example 1 and Example 1 contained the same total colorant content. 351 ° C melting temperature 1339223 degrees ' spinning speed 4500 meters / min, 3-4 times extension. The following table shows the reflectance values of Comparative Example 1, the stock solution dyeing formula Α-1, the stock solution dyeing formula Β1-1, and Example 1 at 4 〇〇-700 nm every 2 〇 nm, and the reflectance peak of Example 1 (7.1). The difference from the reflectance trough (4.9) is 2.2, and the difference between the reflectance wave strip (7'3) and the reflectance trough (5.7) of Comparative Example 1 is 1.6. From this, it was confirmed that the color of Example 1 was relatively deep and fresh. Wavelength (nm) 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Example 1 Formulation A-1 5.5 5.8 6.1 6.5 6.9 7.1 7.0 6.9 6,5 6.0 5.3 5.0 4.9 5.0 5.2 5.6 9.1 10.9 14,3 22.4 39.1 49.3 43.5 32.3 20.6 12.4 7.2 5.6 5.2 5.5 6J 7.6 Formulation B1-1 3.4 3.4 3.3 3.2 3.2 3.2 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.0 Comparative Example 1 6.7 6.8 6.9 7.1 7.2 7.3 7,2 7.2 7.0 6.7 6.1 5.8 5.7 5.7 6.0 6.3

The following table shows the Cffi hue analysis of Comparative Example 1 and Example 1 and Comparative Example 1. The a* value of Example 1 is small, indicating that the chroma component is more green and the color intensity is 11.6% stronger than that of Comparative Example 1. . L* a* b* %Strength Example 1 30.04 - 4.27 -0.22 111.6 Comparative Example I 31.31 - 2.67 -0.72 As Standard (Example 2) Example 2 is a core-sheath type composite dyed with 3 denier per filament. Polypropylene fibers. The sheath 20 contains 0.6% by weight of Pigment Blue 15:3, and the core layer 10 contains 1.2% by weight of carbon black, and the ratio of the cross-sectional area of the sheath 20 to the core layer is 70/30. Temperature, spinning speed 2700 m / min, 3.5 times extension. At this time, the stock solution dyeing formula A-2 has both the sheath layer 20 and the core layer 10 containing a weight percentage of 0.6% of the color index number Pigment Blue 15:3. Its λΑ=460ηηι, reflectivity 1339223

Ra = 39.7. The raw liquid dyeing formula Bl_2 contains a sheath and a core layer containing 1.2% by weight of carbon black, and the average reflectance value (1) is 3.2. Comparative Example 2 was a polypropylene fiber dyed with 3 denier per filament stock containing a percentage by weight of 0.42% color index number 15:3 and 0.36% by weight carbon black. Comparative Example 2 and Example 2 contained the same total colorant content. 22 〇 °c melting temperature 'spinning speed 2700 m / min, 3.5 times extension. The following table shows the reflectance values of Example 2, the stock solution dyeing formula A-2, the stock solution dyeing formulas B1-2 and #Example 2 at 4 〇〇7 〇 Onm every 20 nm, and the reflectance wave of Example 2. (5.9) The difference from the reflectance trough (3.6) is 2.3, and the difference between the reflectance peak (6_2) of Comparative Example 2 and the reflectance trough (4.2) is 2.0. From this, it was confirmed that the color of Example 2 was dark and vivid. Wavelength (nm) 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Example 2 4.8 5.4 5.7 5.9 5.8 5.8 5.6 5.1 4.5 4.0 3,8 3.6 3.6 3.7 3.9 3.6 Formulation A-2 15.5 21.8 32.4 39.7 37.8 31.3 22.3 13.7 7.9 6.0 5.3 5.0 4.7 4.7 3.9 4.7 Formulation B1-2 3.3 3.3 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.1 3.1 3.1 3.0 3.0 Comparative Example 2 5.7 6.0 6.1 6.2 6.2 6.2 6.1 5.9 5.3 4.8 4.5 4.3 4.2 4.3 4.2 4.2

The following table shows the CIE hue analysis of Comparative Example 2 and Example 2. The b* value of Example 2 is small, indicating that the chroma component is blue more and the strength is 14.8% stronger than that of Comparative Example 2. L* a* b* %Strength Example 2 25.11 -3.57 -6.03 114.8 Comparative Example 2 27.44 - 3.28 -3.97 As Standard (Example 3) Example 3 is a core-sheath type composite polymerization dyed with a denier / each silk stock solution Ammonia fiber (or nylon fiber). Sheath 20 contains 0.6% by weight color index number 12 1339223

Pigment Red 149 and weight percent 〇.3% titanium dioxide, the core layer 1〇 contains 1.2% by weight carbon black, and the ratio of the cross-sectional area of the layer 20 to the core layer is 7〇/3〇1 280°C. The spinning speed is 4,300 m/min and the extension is 2.5 times. At this time, the stock solution dyeing formula A-3 is a layer 20 and a core layer 1 〇 all contain a weight percentage of 0.6% of the color index No. Pigment Red 149. Its = 7 〇〇 nm, reflectivity RA = 77.9. On the other hand, the stock solution dyeing formula B1-3 has a sheath layer 20 and a core layer of 1% by weight, and the average reflectance value rbi is 2j. Comparative Example 3 is a polyaniline fiber (or nylon fiber) dyed with 3 denier per filament stock containing 0.42% by weight of PigmentRed 149 and 0.36% by weight of carbon black. Comparative Example 3 contained the same total colorant content as in Example 3. Melting temperature of 285 ° C, spinning speed 4300 m / min, 2.5 times extension. The following table shows the reflectance values of Comparative Example 3, stock solution dyeing formula A_3, stock solution dyeing formula B1-3 and solid example 3 at 400-700 nm every 20 nm, and the reflectance peak (6.5) and reflectance of Example 3. The difference between the troughs (3.8) is 2.7, and the difference between the reflectance wave Qin (6.6) and the reflectance trough (4.3) in Comparative Example 3 is 2.3. From this, it was confirmed that the color of Example 2 was dark and vivid. Wavelength (nm) 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Bao Shi Example 3 ------_ 4.1 4.2 4.1 3.9 3.8 3.8 3.9 4,2 4.3 5.3 6.2 6.3 6.3 6,4 6.4 6.5 Formulation A-3 14.1 12.4 8.79 6.45 5.4 5.19 5.71 7.21 7.33 16.2 43.2 71.1 78.1 78.8 77.9 77.9 Formulation B1-3 ------ Comparative Example 3 - J 1.5 2.3 2.3 2.2 2.2 2.2 2.2 2.2 2.1 2Λ 2.1 2.1 2.1 2.1 2.0 2.0 4.9 5.0 4.8 4.6 4.4 4.3 4.4 4.6 4.7 5.7 6.3 6.4 6.5 6.5 6.5 6.6 The following table shows the CIE hue analysis of Comparative Example 3 and Example 3. The larger a* value of Example 32 indicates that the chroma component is more red. The color intensity is also stronger than that of Comparative Example 3. 13·5〇/〇〇__L* a* b*__%Strength 13 1339223 Example 26.19 5.29 4.46 ----- 1Π S Comparative Example 3 27.38 4.45 2.48 As Standard ~ _ (Example 4) Example 4 is a heterogeneous composite fiber-dyed fiber dyed with 3 denier per filament of the original straight yarn, layer 2 〇 containing weight percent 色% color lucky quotation mark Pig let tYell〇wl47 And the weight percentage 〇3% dioxin, the core layer ι〇 contains 0.3% by weight of the color surface | No. Pig_t such as 7 and the weight percentage 〇 3% dioxin Titanium, the ratio of the wearing area of the (four) 20 to the core layer 10 is _〇. Tear 〇 c melting temperature, spinning speed 3000 m / min, part of the forward silk (four) ^. At this time, the stock solution dyeing formula A_4 is 2 〇 and the core layer 1 〇 contains a weight percentage of 0.8% of the color index number PigmentYe 丨 1 〇 w 147 and a weight percentage (four) titanium oxide. Its λ Α = 700 nm and the reflectance ra = 88". The stock solution dyeing formula B2-4 is the sheath layer 20 and the core layer 〇 all contain a weight percentage 0.3% color index No. Pigment Green 7 and a weight percentage 〇 3% dioxime. Its λ Β 2 = 500 ηηι, its reflectance at λ R Rb2 = 12 2 . Comparative Example 4 is a poly-dimensional dyed with a 3 denier per gram of raw yarn (ρ〇γ) per stock, containing 0.42% by weight of the color index No. Kissi Ydi〇w 147 and a weight percentage of 重. 12% The color index No. Pigment is added as 7 and 0.3% by weight of titanium dioxide. Comparative Example 4 contained the same total colorant content as the solid addition 4. The 285 °C smelting temperature, _ speed 3 × m / min, part of the silk (ρ 〇 γ). The following table shows the reflectance values of Comparative Example 4, the stock solution dyeing formula Α4, the stock solution dyeing formula _2_4, and the example 4 at 400-700 mn every 2 ,, the reflectance wave of Example 4 and 62, 9) and the reflectance. The difference between the troughs (5 7) ^ S7 2, the difference between the reflectance peak (59.4) of Comparative Example 4 and the reflectance trough (66) is 52 8 . Thus, it was confirmed that the color of Example 4 was deep and pure. 1.3.39223 Wavelength (nm) 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Example 4 7.6 6.3 5.7 5.9 8.9 22.0 52.8 62.9 52.3 37.8 23,7 18.0 16.8 17.4 21.6 25*1 Formulation Α·4 6.9 4.9 4.2 4.2 5.9 15.3 44.3 70.4 78.0 80.4 82.5 84.3 86,2 86.6 86.1 88.1 Formulation ~2~4 14.0 16.8 21.6 31.7 49.9 59.8 54.5 43.1 29.6 19.0 11.3 8.8 8.3 8.6 10.8 12.2 Comparative Example 4 9.1 7.5 6.6 6.8 9.6 21.8 50.2 59.4 48.7 35.8 24.5 20.2 19.3 20.6 24.0 25.5 The following table shows the CIE hue analysis of Comparative Example 4 and Example 4. The a* value of Example 4 is smaller. The b* value is larger, indicating that the chroma component is more yellowish green and the color intensity is also Stronger than Comparative Example 4 15.5% 〇L* a* b* %Strength Example 4 70.00 -29.88 64.90 115.5 Comparative Example 4 68.77 -26.93 59.63 As Standard

(Example 5) Example 5 is a core-sheath type composite polypropylene fiber dyed with a stock solution of 5 denier per filament. The sheath 20 contains a weight percentage 〇.8 color index No. Pigment Yellow 83 'core layer 10 contains a weight percentage 〇·2 color index No. Pigment Red 214, and the ratio of the cross-sectional area of the sheath layer 20 to the core layer 100 is 80/20. °C melting temperature, spinning speed 2700 m / min, 3.5 times extension. At this time, the stock solution dyeing formula A-5 was such that the sheath layer 20 and the core layer 10 contained a weight percentage of Pigment Yellow 83 of 0.8% by weight. Its λ Α = 700 nm, reflectivity

Ra = 80.9 ο and the 'stock solution formulation B2-5 is the layer 20 and the core layer 10 all contain 0.2% by weight of the color index No. Pigment Red 214. Its λ Β 2 = 700 ηιη, its reflectance at λ R Rb2 = 80.5. Comparative Example 5 is a fully extended 5 denier per filament dyed polypropylene fiber containing a weight percent 0.8% color index No. Pigment Yellow 83 and a weight 15% 0.2% color index No. Pigment Red 214. Comparative Example 5 had the same total colorant content as Example 5 3. 220 〇C melting temperature, spinning speed 2700 m / min, 3,5 times extension. The following table shows the reflectance values of Comparative Example 5, the stock solution dyeing formula A-5, the stock solution dyeing formula B2-5, and the real example 5 at 400-700 nm every 2 〇nrn, and the reflectance wave of Example 5 (79). 5) The difference from the reflectance trough (6.0) is 73.5, and the difference between the reflectance peak (79.9) of Comparative Example 5 and the reflectance trough (7.6) is 72.3. From this, it was confirmed that the color of Example 5 was deep and pure. Wavelength (nm) Example 5 Formulation A-5 Formulation B2-5 Comparative Example 5 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 6.5 6.0 6.1 6.3 6.7 7,0 I3J 37.8 43.5 52.6 67.2 73.1 76.9 77.6 76.8 79.5 8.0 7.1 6.5 6.3 6-6 7.4 18.4 56.3 74.6 78.1 78.8 79.5 80.3 80.4 80.7 80.9 20.4 19.6 18.6 16.4 13.9 12.3 11.4 12,7 13.8 23,9 44.8 64.1 75.1 78.8 80.0 80.5 8.4 7.6 7.7 7.9 8.5 9.6 16.4 40.6 45.1 52.5 66.7 73.2 77.0 77.9 75.9 79.9

The following table shows the CIE hue analysis of Comparative Example 4 and Example 4. The a* value of Example 5 is large and the b* value is large, indicating that the chroma component is more yellowish and the color intensity is stronger than that of Comparative Example 5. % 〇L* a* b* %Strength Example 5 73.39 18.84 71.35 118.3 Comparative Example 5 74.15 16.88 66.01 As Standard (Example 6) Example 6 is a 4.5-denier/mother wire dyed core-sheath type composite polymerization Ammonia fiber (or nylon fiber). Sheath 20 contains 2% by weight color index No. Pigment Red 149 ‘core layer 1 〇 contains weight percent 〇 5% color index number

Pigment

The ratio of the cross-sectional area of the sheath layer 20 to the core layer 10 of Violet 23 ' is 6 〇 / 4 〇. 28 〇 C3C melting temperature, spinning speed 4300 m / min, 2.5 times extension. 16 1339223 At this time, the stock solution dyeing formula A_6 is that the sheath layer 20 and the core layer 10 all contain a weight percentage of Pigment RecM49 of 2% by weight. Its λ Α = 700 nm and the reflectance RA = 78.9. The raw liquid dyeing formula 6-2 is a sheath layer 20 and a core layer 1 〇 all containing a 0.5% by weight color index Pigment Violet 23, which is λ Β 2 = 7 〇〇 ηηι, and its reflectance at λ R Rb2 = 71.3. Comparative Example 6 is a polyaniline fiber (or nylon fiber) dyed with a stock solution of 4.5 denier per filament, containing 1.2% by weight of Pigment Red 149 and Φ by weight of 0.2% color index No. Pigment Violet 23. Comparative Example 6 and Example 6 contained the same total colorant content. 285. (: Melting temperature, spinning speed 4,300 m/min, 2.5 times extension. The following table shows Comparative Example 6, stock solution dyeing formula a-6, stock solution dyeing formula B2-6 and Example 6 at 400-700 nm every 2 The reflectance value of 〇nm, the difference between the reflectance peak (89.2) and the reflectance trough (6·6) of Example 6 was 82.6, and the difference between the reflectance peak (88.9) of Comparative Example 6 and the reflectance trough (8.2). It is 80.7. It is thus confirmed that the color of Example 6 is relatively dark and vivid. Wavelength (nm) 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Example 6 17.5 15.6 10.8 7.7 6.6 6.7 7.7 8.7 7.5 11.7 14.6 19.0 34.7 61.5 79.9 89.2 Formulation A-6 14.1 12.4 8.79 6.45 5.4 5.19 5.71 7.21 7.33 16.1 43.2 71.1 79.1 79.8 78.9 78.9 Formulation B2-6 26.7 30.3 32.1 30.9 26.5 20.4 15.2 12.5 10 9.78 10.3 12.1 20.9 38.3 53.9 71.3 Comparative Example 6 21.4 18.9 13.6 10.1 8.5 8.2 8.6 9.8 8.6 13.0 15.9 19.0 33.7 60.0 79.5 88.9 The following table shows the CIE hue analysis of Comparative Example 4 and Example 4. The a* value of Example 6 is larger, indicating that the chroma component is more red and colored. The strength is also 21.3% stronger than that of Comparative Example 6. 17 U9223 Table 6-2 L * a* —- , -b* %Strength Example 6 39.45 18.10 Γΐ.5〇Γ 121.3 Comparative Example 6 41.23 16.6” -2.12 ------ As Standard Huai _L is only the present invention The preferred embodiment* has been implemented by the present invention, which is not covered by the invention, and that the fourth embodiment of the invention is based on the invention and the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 ' is a schematic view of an embodiment of the present invention. [Description of main component symbols] Core layer 10 Sheath layer 20

Claims (1)

133 Materials 23 X. Patent Application Fan Park··1· A core-sheath type composite fiber dyed with a stock solution, the core-sheath type composite fiber comprising a core layer and a pin layer covering the far core layer; The stock solution of the sheath layer is dyed with at least a colored dye and pigment composition stock solution A, and the stock solution dyeing formula A is: when the sheath layer and the core layer are applied with the same weight percentage of the stock solution dyeing formula A, The core pin type composite fiber has at least one visible light reflectance maximum peak ^, and the maximum peak λ Α reflectance value ra; and the anger layer is dyed using a black/grey stock solution formula m, and the stock solution dyeing formula B1 $ : When the layer and the core layer are applied with the same weight percentage of the stock solution formulation B1, the core type composite fiber has an average reflectance value RB1 ' and rb|&lt;Ra. 2. The core-sheath type composite fiber according to claim 1, wherein the core layer and the layer used in the layer are selected from the group consisting of poly-resin, poly-g-copolymer, and poly-branched ammonia. a resin, a copolymer of (iv) ammonia, a copolymer of polypropylene, a copolymer of poly(tetra), a copolymer of polyethylene, a copolymer of poly(10), and a mixture of the above polymers, wherein 八八· The face lion, wherein the ratio of the cross-sectional area of the layer and the core layer ranges from 20/80 to 95/5. 4. The core-sheath type composite fiber according to claim 1, wherein the total color material content of the raw liquid dyeing formula A accounts for the weight percentage of the sheath layer, and the total color material content of the pure formula (1) accounts for the core. The percentage of d is in the range of 0.01% to 10%. 〇5·A fabric is made of the core-sheath type composite fiber 19 1339223 as described in claim 1 of the patent application. The core-composite fiber comprises a layer, and a layer of the layer covering the layer; wherein: the stock solution of the sheath layer is dyed using at least a thin right color formula A, and m ^ (four), a pigment composition The original liquid wood color formula A 'and __ color formula A is: when the lyophilized layer * is applied with the same weight percentage of the original liquid dyeing formula eight days, the two white ray has at least one visible light reflectance maximum peak ^ λ Α reflectance value ra ; and take the people of Bo Qin at least - county material, pigment composition of the original liquid dyeing phase because of the second, to, with ^ B2: when the return to the core layer are applied: 73 than the original (four) color formula B2 The core-sheath type composite fiber has a visible light reflectance maximum wave tea' And the peak value of the peak is RB2, where RB2 &lt; RA. 7. The core-turned composite fiber according to claim 6, wherein the core layer and the polymer used in the lamina layer are selected from the group consisting of poly-lipids, poly-S copolymers, poly-branches, and ? a copolymer of ammonia, (4) agglomerated, a copolymer of poly, a copolymer of polyethylene, a copolymer of polyethylene, and a mixture of the above polymers, wherein '0 8' is as described in item 6 of the application The core-turned composite fiber, wherein the ratio of the loading area of the layer and the 6-layer layer ranges from 20/80 to 95/5. 9. The core-sheathed composite fiber of claim 6, wherein the total color content of the raw liquid formulation A is in the range of 10% by weight of the layer. And the total color material content of the 5 Xuanyuan liquid dyeing formula B2 accounts for 0.01% to 10% of the reset percentage of the core layer. 20 13-39223 10. A fabric made of a core-type composite fiber as described in claim 6 of the patent application. 1339223 VII. Designated representative map: (1) The representative representative of the case is: (1). (2) A brief description of the symbol of the representative figure: Core layer 10 Sheath layer 20 8. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: