CN116926703A - Color paste for ultra-high molecular weight polyethylene fiber and dyeing method thereof - Google Patents
Color paste for ultra-high molecular weight polyethylene fiber and dyeing method thereof Download PDFInfo
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- CN116926703A CN116926703A CN202310999644.5A CN202310999644A CN116926703A CN 116926703 A CN116926703 A CN 116926703A CN 202310999644 A CN202310999644 A CN 202310999644A CN 116926703 A CN116926703 A CN 116926703A
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- 239000000835 fiber Substances 0.000 title claims abstract description 79
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract description 66
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004043 dyeing Methods 0.000 title claims description 20
- 239000012860 organic pigment Substances 0.000 claims abstract description 28
- 239000002904 solvent Substances 0.000 claims abstract description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 18
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 18
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 18
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000049 pigment Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 7
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 3
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 3
- PPSZHCXTGRHULJ-UHFFFAOYSA-N dioxazine Chemical compound O1ON=CC=C1 PPSZHCXTGRHULJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000008641 benzimidazolones Chemical class 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 25
- 230000008859 change Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000638 solvent extraction Methods 0.000 abstract description 4
- 238000007380 fibre production Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 28
- 239000000463 material Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920006253 high performance fiber Polymers 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- SGHZXLIDFTYFHQ-UHFFFAOYSA-L Brilliant Blue Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C(=CC=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 SGHZXLIDFTYFHQ-UHFFFAOYSA-L 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- MYONAGGJKCJOBT-UHFFFAOYSA-N benzimidazol-2-one Chemical compound C1=CC=CC2=NC(=O)N=C21 MYONAGGJKCJOBT-UHFFFAOYSA-N 0.000 description 1
- 229960001506 brilliant green Drugs 0.000 description 1
- HXCILVUBKWANLN-UHFFFAOYSA-N brilliant green cation Chemical compound C1=CC(N(CC)CC)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](CC)CC)C=C1 HXCILVUBKWANLN-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 239000004595 color masterbatch Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229940023462 paste product Drugs 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical compound C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- ORFSSYGWXNGVFB-UHFFFAOYSA-N sodium 4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonic acid Chemical compound COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)O)S(=O)(=O)O)O)OC)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] ORFSSYGWXNGVFB-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
Abstract
The invention discloses a color paste for ultra-high molecular weight polyethylene fibers, which adopts white oil with high flash point and low volatility used in ultra-high molecular weight polyethylene fiber raw material mixed liquid as a solvent, mixes organic pigment which is not separated out by hydrocarbon solvent extract liquid, prepares color paste through an ultra-fine grinding process, obtains the color fibers after mixing the ultra-high molecular weight polyethylene fibers, does not change the original process, and does not separate out color in a hydrocarbon solvent extraction stage and pollute a solvent tank; in the fiber drafting stage, the color paste is thin enough and smaller than the diameter of the fiber, so that the broken filaments and the broken filaments are not caused, the product quality of each process section is not influenced, and the market demand of color fiber production and expansion is met.
Description
Technical Field
The invention relates to the technical field of wet spinning dyeing, in particular to color paste for ultra-high molecular weight polyethylene fibers and a dyeing method thereof.
Background
The ultra-high molecular weight polyethylene fiber (Ultra High Molecular Weight Polyethylene Fiber, UHMWPEF) fiber is taken as a high-performance fiber, and has very important practical significance for further development and research.
The current industrial dyeing process of the ultra-high molecular weight polyethylene fiber is mostly focused on the stock solution dyeing direction, wherein the stock solution dyeing method of the UHMWPE fiber, the conventional dyeing method of the UHMWPE fiber, the dye for synthesizing a specific structure, the supercritical carbon dioxide process fiber dyeing method and the fiber modification dyeing method are included; although colored fibers can be produced, different limitations still exist, and in order to better promote the development of the high-performance fibers, the industrialized dyeing process which is simpler, more convenient and quicker and does not damage the fiber characteristics needs to be researched, so that the application field of the fiber is wider, and more economic benefits and social benefits are realized.
In the existing method, if the dye is used as a main colorant, whether the high-density polyethylene powder is mixed and added to prepare master batch or the mixed solvent is melt-spun, the risk of the dye being extracted exists in the subsequent solvent extraction process, so that a large amount of extraction solvent tanks are polluted, and the actual production needs cannot be met; if the pigment mixed resin is used for preparing master batch, the existing equipment and method for processing and grinding color master batch cannot achieve the fiber fineness level, the spinning yarn of the subsequent process and the yarn breakage phenomenon of the drawing process can be caused, and the performance requirement of the product cannot be met.
Disclosure of Invention
The invention aims to provide color paste for ultra-high molecular weight polyethylene fibers and a dyeing method thereof, which can realize the purposes of obtaining color fibers without changing the original process and affecting the product quality of each process section.
In order to achieve the purpose, the invention provides a color paste for ultra-high molecular weight polyethylene fibers, which comprises the following raw materials in parts by weight: 80-90% of white oil and 10-20% of organic pigment, wherein the precipitation rate of the organic pigment in hydrocarbon solvent is less than 2%.
Optionally, the white oil flash point is higher than 150 ℃.
Optionally, the organic pigment comprises one or more combinations of azo pigments, phthalocyanine pigments, naphthol pigments, quinacridone pigments, and dioxazine pigments.
Optionally, the organic pigment comprises one or more combinations of diketopyrrolopyrroles, benzimidazolones, beta-phthalocyanine blue or phthalocyanine green.
Optionally, the particle size of the color paste for the ultra-high molecular weight polyethylene fiber is smaller than 50 mu m.
The invention also provides a method for dyeing the ultra-high molecular weight polyethylene fiber, which adopts the color paste for the ultra-high molecular weight polyethylene fiber and comprises the following steps:
uniformly mixing white oil and an organic pigment, and grinding to obtain color paste;
mixing the ultra-high molecular weight polyethylene with the prepared color paste, and feeding the mixture into a double-screw extruder to extrude and spin while stirring.
Optionally, the milling includes milling the mixture of white oil and organic pigment using one or a combination of two or more of a three-roll mill, a sand mill, and a homogenizer.
Optionally, the particle size of the milled mixture is less than 50 μm.
Optionally, the mass ratio of the color paste to the ultra-high molecular weight polyethylene is 1:100-20:100.
compared with the prior art, the invention adopts the white oil with high flash point and low volatility which is used in the ultra-high molecular weight polyethylene fiber raw material mixed solution as the solvent, mixes the organic pigment which is not separated out by the hydrocarbon solvent extract, prepares the color paste through an ultra-fine grinding process, obtains the color fiber after mixing the ultra-high molecular weight polyethylene fiber, simultaneously does not change the original process, does not separate out the color in the hydrocarbon solvent extraction stage, and does not pollute the solvent tank; in the fiber drafting stage, the color paste is thin enough and smaller than the diameter of the fiber, so that the broken filaments and the broken filaments are not caused, the product quality of each process section is not influenced, and the market demand of color fiber production and expansion is met.
Detailed Description
The present invention will be described in more detail below, wherein preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the beneficial results of the present invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.
The invention is more specifically described by way of example in the following paragraphs. The advantages and features of the present invention will become more apparent from the following description.
Ultra-high molecular weight polyethylene fibers (Ultra High Molecular Weight Polyethylene Fiber, UHMWPEF), also known as high-strength high-modulus polyethylene fibers, are currently the fibers of the world with the highest specific strength and specific modulus, and have molecular weights of 100 to 500 tens of thousands of polyethylene spun fibers.
The main production process of the ultra-high molecular weight polyethylene fiber comprises the following steps: raw material preparation, a double screw extruder, a spinning box, a spinneret plate, extraction, drying, heating and drafting and winding forming.
The color paste product provided by the invention is aimed at wet process technology, and the process description and the process path are as follows:
the wet spinning production process adopts white oil with high flash point and low volatility and the like as a solvent, the ultra-high powder is dissolved in the white oil to prepare spinning stock solution, then the spinning stock solution is extruded into fluid silk strips through a spinning component, the fluid silk strips are cooled in a water bath to obtain gel silk strips, the gel silk strips are extracted, dried and desolventized to form undrawn silk, and then the undrawn silk strips are subjected to multi-channel hot drawing to prepare finished fibers.
Therefore, the invention adopts the white oil with high flash point and low volatility used in the ultra-high molecular weight polyethylene fiber raw material mixed solution as the solvent, and the pigment which is not separated out by the hydrocarbon solvent extract is mixed, thereby greatly reducing the possibility that the dye is extracted, and the color paste is prepared by an ultra-fine grinding process.
The invention provides a color paste for ultra-high molecular weight polyethylene fibers, which comprises the following raw materials in parts by weight: 80-90% of white oil and 10-20% of organic pigment, wherein the precipitation rate of the organic pigment in hydrocarbon solvent is less than 2%.
The organic pigment is a pigment which can keep the hydrocarbon solvent tank clear and has no residual pigment color, so that the hydrocarbon tank can be recycled, and various inorganic pigments such as titanium pigment, ferric oxide pigment, chromium oxide pigment, cobalt oxide pigment, ultramarine pigment, carbon black pigment and the like can meet the precipitation requirement of hydrocarbon solvent resistance, but the inorganic pigment has a narrow color gamut, and the color is not bright and rich enough and can not meet the dyeing requirement well; the organic pigment can supplement the color gamut of each color to achieve rich color combinations, and the organic pigment which does not pollute the hydrocarbon solvent tank in the hydrocarbon solvent is selected to comprise one or more combinations of azo pigment, phthalocyanine pigment, naphthol pigment, quinacridone pigment and dioxazine pigment.
Specifically, the color composition can be selected from basic colors of scarlet (diketopyrrolopyrrole DPP organic pigment PR 254), brilliant yellow (benzimidazolone PY 151), brilliant blue (beta-type phthalocyanine blue PR 15:4), brilliant green (PG 7 phthalocyanine green) and orange (PO 64), and the purpose of preparing various colors is achieved by using a three-primary color matching principle.
Further, the white oil has a flash point higher than 150 ℃, and the white oil is selected from high-grade white oils with high flash points and low volatilities.
Specifically, one or more combinations selected from the group consisting of 48# white oil, 50# white oil, 58# white oil, and 60# white oil may be used.
Furthermore, in order to enable the color paste to be conveniently applied to the production and processing process of the ultra-high molecular weight polyethylene fiber, the white oil and the organic pigment are ground after being mixed, the granularity is smaller than 50 mu m, and the color paste is small in granularity and smaller than the diameter of the fiber, so that broken filaments and broken filaments are not caused, and the product quality of each process section is not influenced.
The embodiment also provides a method for dyeing the ultra-high molecular weight polyethylene fiber, which adopts the color paste for the ultra-high molecular weight polyethylene fiber and comprises the following steps:
s1, uniformly mixing white oil and an organic pigment, and grinding to obtain color paste;
s2, mixing the ultra-high molecular weight polyethylene with the prepared color paste, and feeding the mixture into a double-screw extruder to extrude and spin while stirring.
Further, in step S1, the grinding includes grinding the mixture of the white oil and the organic pigment using one or a combination of two or more of a three-roll grinder, a sand grinder, and a homogenizer.
The particle size of the mixture after milling is less than 50. Mu.m.
In the step S2, the mass ratio of the color paste to the ultra-high molecular weight polyethylene is 1:100-20:100.
the above-mentioned invention is a specific step of processing and producing color fiber based on the color paste for ultra-high molecular weight polyethylene fiber according to the present invention.
In order to represent the using effect of color paste, the numerical values of L, a and b are used for representing the color.
The L, a, b numerical color mode is a color calibration mode specified by the international commission on illumination (CIE), wherein: l represents brightness, ranging from 0 to 100, darkest 0 and brightest 100; a is the color change from green to red, the range is-128 to +128, pure green is negative 128, pure red is positive 128, and the range is divided into 256 levels; b is the color change from blue to yellow, the range is-128- +128, pure blue is negative 128, pure yellow is positive 128, and the range is divided into 256 stages.
The components required for preparing the color paste in each experimental example are shown in table 1:
table 1: color paste raw material table in each experimental example
In the process of preparing color paste in each experimental example, the raw materials in table 1 are put into a container (usually a drawing cylinder) according to the mixing proportion, mixed and stirred uniformly in a high-speed dispersing machine, and then are subjected to combined grinding of a three-roll machine, a sand mill and a homogenizer to obtain an ultrafine mixed uniform body.
Experimental example 1
The black and bright ultra-high molecular weight polyethylene fiber is prepared by adopting the combination of black powder and white oil, and comprises the following steps:
white oil and black organic pigment are mixed according to the mass ratio of 9:1, uniformly mixing the materials in proportion, and grinding the materials to obtain black color paste;
injecting the ultra-high molecular weight polyethylene and the prepared black color paste into a batching kettle, wherein the mass ratio of the black color paste to the ultra-high molecular weight polyethylene is 20:100;
feeding the fiber into a double screw extruder while stirring to extrude and spin, and extracting, drying and multi-stage drafting to obtain the black and bright ultra-high molecular weight polyethylene fiber.
Experimental example two
The method adopts the combination of red powder and white oil to prepare the reddish ultra-high molecular weight polyethylene fiber, and comprises the following steps:
white oil and red organic pigment are mixed according to the mass ratio of 4:1, uniformly mixing the materials in proportion, and grinding to obtain red color paste;
injecting the ultra-high molecular weight polyethylene and the prepared red color paste into a batching kettle, wherein the mass ratio of the red color paste to the ultra-high molecular weight polyethylene is 1:100;
feeding the raw materials into a double screw extruder while stirring to extrude and spin, and extracting, drying and multi-stage drafting to obtain the reddish ultra-high molecular weight polyethylene fiber.
Experimental example III
The method adopts the combination of yellow powder and white oil to prepare the bright yellow ultra-high molecular weight polyethylene fiber by processing, and comprises the following steps:
white oil and yellow organic pigment are mixed according to the mass ratio of 9:1, uniformly mixing the materials in proportion, and grinding to obtain yellow color paste;
injecting the ultra-high molecular weight polyethylene and the prepared yellow color paste into a batching kettle, wherein the mass ratio of the yellow color paste to the ultra-high molecular weight polyethylene is 20:100;
feeding the mixture into a double-screw extruder while stirring to extrude and spin, and then extracting, drying and multi-stage drafting to obtain bright yellow ultra-high molecular weight polyethylene fibers.
Experimental example four
The army green ultra-high molecular weight polyethylene fiber is prepared by adopting the combination of green powder and white oil, and comprises the following steps:
white oil and green organic pigment are mixed according to the mass ratio of 4:1, uniformly mixing the materials in proportion, and grinding the materials to obtain green color paste;
injecting the ultra-high molecular weight polyethylene and the prepared green color paste into a batching kettle, wherein the mass ratio of the green color paste to the ultra-high molecular weight polyethylene is 1:100;
feeding the mixture into a double-screw extruder while stirring to extrude and spin, and extracting, drying and multi-stage drafting to obtain the green ultra-high molecular weight polyethylene fiber.
The basic color ultra-high molecular weight polyethylene fibers prepared in the above experimental examples one to four were examined for the change in fiber strength before and after dyeing, and the results are shown in table 2.
TABLE 2
As can be seen from table 2, the strength of the fibers was not affected in the processing and use of each of the basic colors.
In addition, the extraction process of hydrocarbon solvent is not affected in the process of the ultra-high molecular weight polyethylene fibers prepared in the experimental examples one to four, the hydrocarbon solvent tank is clear and transparent, no color residue exists, the hydrocarbon tank can be recycled, the prepared dyed fibers have no broken filaments and broken filaments, the spinning is continuous for one week without stopping the machine, and the spinneret plate is not required to be cleaned.
The invention provides a color paste for ultra-high molecular weight polyethylene fibers, which adopts white oil with high flash point and low volatility used in ultra-high molecular weight polyethylene fiber raw material mixed liquid as a solvent, mixes organic pigment which is not separated out by hydrocarbon solvent extract liquid, prepares color paste through an ultra-fine grinding process, obtains the color fibers after mixing the ultra-high molecular weight polyethylene fibers, simultaneously does not change the original process, does not reduce the fiber strength, does not separate out color in a hydrocarbon solvent extraction stage, and does not pollute a solvent tank; in the fiber drafting stage, the milled color paste is sufficiently fine and smaller than the diameter of the fiber, so that broken filaments and broken filaments are not caused, the product quality of each process section is not influenced, the market demand of color fiber production expansion is met, and rich color combinations can be realized while the production process is met.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. The color paste for the ultra-high molecular weight polyethylene fiber is characterized by comprising the following raw materials in parts by weight: 80-90% of white oil and 10-20% of organic pigment, wherein the precipitation rate of the organic pigment in hydrocarbon solvent is less than 2%.
2. The ultra-high molecular weight polyethylene fiber mill base of claim 1 wherein said white oil flash point is greater than 150 ℃.
3. The paste for ultra-high molecular weight polyethylene fiber according to claim 1, wherein the organic pigment comprises one or more combinations of azo pigments, phthalocyanine pigments, naphthol pigments, quinacridone pigments and dioxazine pigments.
4. The color paste for ultra-high molecular weight polyethylene fiber according to claim 3, wherein the organic pigment comprises one or more of diketopyrrolopyrroles, benzimidazolones, beta-type phthalocyanine blue or phthalocyanine green.
5. The paste for ultra-high molecular weight polyethylene fibers according to claim 1, wherein the paste particle size for ultra-high molecular weight polyethylene fibers is less than 50 μm.
6. A method for dyeing ultra-high molecular weight polyethylene fibers using the paste for ultra-high molecular weight polyethylene fibers according to any one of claims 1 to 5, comprising:
uniformly mixing white oil and an organic pigment, and grinding to obtain color paste;
mixing the ultra-high molecular weight polyethylene with the prepared color paste, and feeding the mixture into a double-screw extruder to extrude and spin while stirring.
7. The method of dyeing ultra-high molecular weight polyethylene fiber according to claim 1, wherein the grinding comprises grinding a mixture of white oil and an organic pigment using one or a combination of two or more of a three-roll grinder, a sand grinder and a homogenizer.
8. The method of dyeing ultra high molecular weight polyethylene fiber according to claim 7, wherein the particle size of the milled mixture is less than 50um.
9. The method for dyeing ultra-high molecular weight polyethylene fiber according to claim 1, wherein the mass ratio of the color paste to the ultra-high molecular weight polyethylene is 1:100-20:100.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962819A (en) * | 2010-09-13 | 2011-02-02 | 杭州翔盛高强纤维材料股份有限公司 | Ultrawhite ultrahigh-molecular weight ultrahigh-modulus polyethylene fibers and preparation process thereof |
| CN102199805A (en) * | 2011-04-12 | 2011-09-28 | 常熟绣珀纤维有限公司 | Method for preparing ultrahigh molecular weight polyethylene (UHMWPE) colored fibre |
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| CN116356443A (en) * | 2023-02-01 | 2023-06-30 | 南通恒尚新材料科技有限公司 | Coloring color paste for ultra-high molecular weight polyethylene fibers and preparation method thereof |
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2023
- 2023-08-09 CN CN202310999644.5A patent/CN116926703A/en active Pending
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| CN101962819A (en) * | 2010-09-13 | 2011-02-02 | 杭州翔盛高强纤维材料股份有限公司 | Ultrawhite ultrahigh-molecular weight ultrahigh-modulus polyethylene fibers and preparation process thereof |
| CN102199805A (en) * | 2011-04-12 | 2011-09-28 | 常熟绣珀纤维有限公司 | Method for preparing ultrahigh molecular weight polyethylene (UHMWPE) colored fibre |
| CN105133066A (en) * | 2014-05-28 | 2015-12-09 | 杭州翔盛高强纤维材料股份有限公司 | Making method of ultrahigh molecular weight polyethylene colored fibers |
| CN108977906A (en) * | 2018-09-05 | 2018-12-11 | 青岛信泰科技有限公司 | A kind of preparation facilities and method of colour ultra high molecular weight polyethylene fiber |
| CN111593426A (en) * | 2020-06-08 | 2020-08-28 | 江苏九九久科技有限公司 | Temperature-variable high-performance polyethylene fiber and preparation method thereof |
| CN112095168A (en) * | 2020-09-15 | 2020-12-18 | 长青藤高性能纤维材料有限公司 | Colored ultrahigh molecular weight polyethylene fiber and preparation method thereof |
| CN114381811A (en) * | 2021-12-21 | 2022-04-22 | 北京同益中新材料科技股份有限公司 | Preparation method of dope-dyed ultrahigh molecular weight polyethylene fiber spinning mother liquor |
| CN116356443A (en) * | 2023-02-01 | 2023-06-30 | 南通恒尚新材料科技有限公司 | Coloring color paste for ultra-high molecular weight polyethylene fibers and preparation method thereof |
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