CN116710605A - Polyamide composite processing yarn - Google Patents
Polyamide composite processing yarn Download PDFInfo
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- CN116710605A CN116710605A CN202280008299.8A CN202280008299A CN116710605A CN 116710605 A CN116710605 A CN 116710605A CN 202280008299 A CN202280008299 A CN 202280008299A CN 116710605 A CN116710605 A CN 116710605A
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- polyamide
- polyamide fiber
- composite processing
- yarn
- processing yarn
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 132
- 229920002647 polyamide Polymers 0.000 title claims abstract description 132
- 238000012545 processing Methods 0.000 title claims abstract description 86
- 239000002131 composite material Substances 0.000 title claims abstract description 81
- 239000000835 fiber Substances 0.000 claims abstract description 109
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 36
- 125000003277 amino group Chemical group 0.000 claims abstract description 17
- 238000004132 cross linking Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 9
- 239000002759 woven fabric Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 39
- 238000004043 dyeing Methods 0.000 description 34
- 239000000980 acid dye Substances 0.000 description 19
- 239000004744 fabric Substances 0.000 description 17
- 238000009826 distribution Methods 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 12
- 239000000975 dye Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 125000002091 cationic group Chemical group 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 238000004448 titration Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000008234 soft water Substances 0.000 description 3
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- PRZSXZWFJHEZBJ-UHFFFAOYSA-N thymol blue Chemical compound C1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C(=CC(O)=C(C(C)C)C=2)C)=C1C PRZSXZWFJHEZBJ-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 229920006152 PA1010 Polymers 0.000 description 1
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229920006021 bio-based polyamide Polymers 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
- 229940033123 tannic acid Drugs 0.000 description 1
- 235000015523 tannic acid Nutrition 0.000 description 1
- 229920002258 tannic acid Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009970 yarn dyeing Methods 0.000 description 1
- 238000004383 yellowing 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Coloring (AREA)
- Woven Fabrics (AREA)
Abstract
A polyamide composite processing yarn mainly comprises polyamide fiber A and polyamide fiber B, wherein the terminal amino content of the polyamide fiber A is 1.3 multiplied by 10 ‑5 mol/g or less, and the difference in terminal amino group content between the polyamide fiber B and the polyamide fiber A is 3.0X10 ‑5 mol/g or more.
Description
The invention relates to a polyamide composite processing yarn, in particular to a composite processing yarn composed of two polyamide fibers with different terminal amino contents, wherein the composite processing yarn has natural speckle feeling after dyeing.
Polyamide fibers have extremely excellent flexibility, elastic recovery, abrasion resistance, alkali resistance, hygroscopicity, and light weight, and are extremely important in synthetic fibers. However, polyamide fibers are more costly than polyester fibers, and thus, in order to increase the competitiveness of polyamide fibers, differentiated polyamide fibers having a different color effect are being introduced in the market in order to meet consumer demand for attractive and novel clothing.
Chinese patent CN111058146a, japanese patent laid-open No. 2015-137443, japanese patent publication No. 2005-519204, and international publication No. WO2017/091159 all disclose that a cation modified polyamide and a general polyamide are composite-spun, and the obtained composite processed yarn is dyed with a cation dye to obtain a heterochromatic effect. However, the cationic dyeing groups have a large steric hindrance, which results in a decrease in the strength of the cationically modified polyamide fibers. And the cationic modification group is added, so that the color-changing effect cannot occur after the common acid dye is dyed, the cationic dye is needed, and the dyeing with the cationic dye is not beneficial to continuous production, so that the production cost is increased.
Disclosure of Invention
The invention aims to provide a composite processing yarn which has simple production method, excellent hand feeling and color mixing effect after being dyed by acid dye.
The technical scheme of the invention is as follows:
the method comprises the following steps ofThe polyamide composite processing yarn mainly comprises polyamide fiber A and polyamide fiber B. The terminal amino group content of the polyamide fiber A is 1.3X10 -5 mol/g or less, and the difference in terminal amino content between the polyamide fiber B and the polyamide fiber A is 3.0X10 -5 mol/g or more.
The preferable composite ratio of the polyamide fiber A to the polyamide fiber B is 1:3-3:1.
After the polyamide composite yarn was formed into a woven product, L of a dark color portion and L of a light color portion were measured by JIS Z8722.5 method * Value, light color part and heavy color part L * The difference in value is 10 to 50. The light color parts are preferably distributed in a dot shape or a strip shape.
The number of cross-linking in the polyamide composite processing yarn is 150/m or less, preferably 100/m or less.
Since the two polyamide fibers constituting the polyamide composite yarn of the present invention have a difference in terminal amino groups, and the polyamide fiber A having a low terminal amino group value has a terminal amino group content of 1.3X10 -5 The mol/g is lower, so that the polyamide composite fiber has excellent color mixing effect, and can be dyed by using acid dye, thereby being beneficial to continuous production and reducing cost.
Drawings
FIG. 1 is a photograph of the braid of example 1 after dyeing.
FIG. 2 is a photograph of the braid of example 2 after dyeing.
FIG. 3 is a photograph of the braid of example 3 after dyeing.
FIG. 4 is a photograph of the braid of example 4 after dyeing.
FIG. 5 is a photograph of the braid of example 5 after dyeing.
FIG. 6 is a photograph of the braid of example 6 after dyeing.
FIG. 7 is a photograph of the braid of example 7 after dyeing.
FIG. 8 is a photograph of the woven fabric of comparative example 1 after dyeing.
FIG. 9 is a photograph of the woven fabric of comparative example 2 after dyeing.
FIG. 10 is a photograph of the dyed braid of comparative example 3.
FIG. 11 is a photograph of the woven fabric of comparative example 4 after dyeing.
The photographs taken after 4-fold magnification are shown in each of FIGS. 1 to 11.
In the prior art, two common means for realizing the color mixing effect of polyamide fibers are adopted, one is to compound spin common polyamide and polymers with different dyeing mechanisms to obtain compound processing yarns; the other is to modify polyamide to dye it with non-acid dye or dye it with acid dye, then to compound spinning modified polyamide and common polyamide to obtain compound processing yarn. Although both methods can achieve the effect of color mixing, the first method is mixed with other polymer fibers, which can lead to the composite processing yarn to have poorer hand feeling, elasticity and acid and alkali resistance than polyamide single yarn; the physical properties such as the elongation and the elasticity of the modified polyamide in the second method are inferior to those of the common polyamide, so that the physical properties such as the elongation and the elasticity of the composite processing yarn are inferior.
The invention provides a composite processing yarn fully using common polyamide, and fabrics made of the composite processing yarn have a color mixing effect after being dyed by acid dyes.
The composite processing yarn of the invention mainly comprises polyamide fiber A and polyamide fiber B, wherein the terminal amino content of the polyamide fiber A is 1.3X10 -5 mol/g or less, and the difference in terminal amino content between the polyamide fiber B and the polyamide fiber A is 3.0X10 -5 mol/g or more.
When the terminal amino group content of the polyamide fiber A is 1.3X10 -5 When the mol/g is less than or equal to the mol/g, the dye molecule has fewer binding groups, and the dye uptake is low. The difference between the terminal amino group content of the polyamide fiber B and the terminal amino group content of the polyamide fiber A is 3.0X10 -5 The mol/g is higher than that, firstly, the polyamide fiber B can be ensured to have better dye uptake when being dyed by acid dye, and secondly, the dyeing effect of the polyamide fiber B and the dyeing effect of the polyamide fiber A have enough difference, so that the fabric generates color mixingEffects. If the difference in the terminal amino content of the polyamide fiber B and the polyamide fiber A is less than 3.0X10 -5 mol/g, the color-changing effect of the two fibers after dyeing is not obvious. Although the larger the difference in the terminal amino group content is, the better the color-off effect of the obtained polyamide composite processing yarn is, if the difference in the terminal amino group content is too large, yellowing of the polyamide composite processing yarn is likely to occur under the action of light, heat and moisture due to the excessively high terminal amino group content of the polyamide fiber B.
In the integral polyamide composite processing yarn, if the content of the polyamide fiber A is too small, the light dyeing part is exposed to a small extent after dyeing, so that the integral polyamide composite processing yarn is seen to be heavy-dyed, and the color-changing effect is not obvious; if the content of the polyamide fiber A is too much, the exposed thick dyeing part is less after dyeing, so that the whole polyamide composite processing yarn looks light dyeing, and the heterochromatic effect is not obvious. In order that the shade dyeing part can be exposed after dyeing so that the polyamide composite processing yarn presents excellent heterochromatic effect, the composite ratio of the polyamide fiber A and the polyamide fiber B is preferably 1:3-3:1.
The compound proportion of the polyamide fiber A and the polyamide fiber B can also influence the pattern distribution of the subsequent fabric heterochromatic effect, the polyamide fiber A has low content, and the pale part on the fabric is gradually changed into punctiform distribution; the content of the polyamide fiber B is small, and the light color part on the fabric is gradually changed into strip-shaped distribution. The range of the compounding ratio of the polyamide fiber a and the polyamide fiber B may be selected according to the desired color mixing effect without affecting the effect of the color difference.
The polyamide fiber of the present invention is a synthetic fiber formed from a polymer having an amide bond in the main chain, and includes an aliphatic polyamide fiber, an alicyclic polyamide fiber having an aliphatic ring, and an aliphatic polyamide fiber having an aromatic ring. Meanwhile, functional particles such as titanium dioxide particles imparting barrier properties to the fiber may be added to the fiber, and the amount of functional particles added is preferably such that the physical properties of the fiber are not affected. Specifically, polyamide 6, polyamide 66, polyamide 56, polyamide 610, polyamide 1010, polyamide 612, polyamide 11, polyamide 12, biobased polyamide, polymer recovery polyamide, co-modified polyamide, and the like are optional.
The color mixing effect of the composite processing yarn is mainly determined by the difference value of the terminal amino content of the polyamide fiber B and the terminal amino content of the polyamide fiber A, is less influenced by fineness, but the total fineness of the composite processing yarn is preferably less than 150dtex in consideration of the handfeel of the composite processing yarn and the fabric. Since the polyamide fiber itself is relatively soft, if the filament fineness is too small, the effect of color mixing becomes light due to the enhancement of scattering of light, and if the filament fineness is too large, the hand feeling of the composite processed yarn and the fabric is affected, so that the filament fineness is preferably between 0.5 and 1.2 dtex.
The processing mode of the composite processing yarn can be that two fibers are compounded after passing through a interlacing nozzle, the two fibers are processed into DTY fibers after passing through front interlacing and false twisting, the two fibers can be compounded at the interlacing nozzle after being respectively false twisted, and the processing modes of the two fibers after being false twisted, the two fibers and the FDY fiber can be selected according to the required color mixing effect.
The color mixing effect of dyeing after the composite processing yarn is singly manufactured into the fabric can be achieved through the light color part and the thick color part L * The difference in values characterizes. The difference is mainly determined by the difference between the terminal amino content of the polyamide fiber B and the terminal amino content of the polyamide fiber A, when the difference between the terminal amino content is less than 3.0X10 -5 In mol/g, light color part and heavy color part L * The difference in values is too small to see the color mixing effect. The invention preferably uses a light color part and a heavy color part L * The difference in value is 10 to 50.
The number of interlacing numbers in the composite processing yarn after passing through the interlacing nozzle can influence the pattern distribution of the color mixing effect on the subsequent fabric. In consideration of the trafficability of the high-order engineering, the crossover pressure is generally controlled to be 1.5kg/m 2 The number of interlacing is controlled below 150, preferably below 100, so that the light-colored portions on the fabric are distributed in a dot or stripe shape.
Considering that the composite processing yarn of the present invention is applied to textiles, the U% of the composite processing yarn along the fiber axis direction should not be large, and should be controlled below 1.5 (H).
The invention carries out compound processing on the polyamide fiber with low terminal amino content and high terminal amino content to obtain the compound processing yarn which does not change the hand feeling of the polyamide fiber, and has high strength and color mixing effect after being dyed by acid dye. The fabric prepared from the composite processing yarn has good soft feel and natural speckle feel.
The test method related by the invention comprises the following steps:
(1) Terminal amino content
Accurately weighing 1g of sample after the sample is dried for more than 2 hours, adding 50ml of PEA (80% of phenol and 20% of ethanol) mixed solution, adding 2 drops of TB (thymol blue) indicator after shaking and dissolving, titrating by using N/50 hydrochloric acid, stopping titration after the color of the solution is changed from yellow to reddish, and reading the titration amount A of the sample; blank titration of 50ml PEA was performed and the titration amount B was read; the terminal amino group content was calculated by the following formula.
Terminal amino content = 2 (a-B) F/(100000 sample weight),
f is the titration value of N/50 hydrochloric acid, which is 0.02mol/L.
(2)L * Value difference
(a) Manufacture of braiding articles
A polyamide composite yarn 8 of 70T-68F-DTY was used, and a circular knitting article was produced on a 28-needle forming circular knitting machine (manufacturer: SANTONI) (needle count: 1440, speed: 16rpm, design grammage: 140 g/m) 2 )。
(b) Refining treatment
Preparing a refining agent solution (soft water is adopted, 2g/L of refining agent is added, stirring is uniform), then placing the polyamide braid and the refining agent solution into a dyeing machine according to the bath ratio of 1:30, and preserving the temperature for 20 minutes at 80 ℃ to finish refining.
(c) Dyeing and shaping
Preparing dye solution (evenly mixing 2g/L of leveling agent and 2g/L of nylon dyeing acid by adopting soft water to form auxiliary agent solution, adding 0.5owf% black acid dye into the auxiliary agent solution according to the weight of grey cloth, evenly stirring to form dye solution), putting the refined polyamide fabric and the dye solution into a dyeing machine according to the bath ratio of 1:30, and preserving heat for 45 minutes at 98 ℃. And then, soft water is adopted to uniformly mix 3owf percent of tannic acid color fixing agent, the mixture and the dyed polyamide braided fabric are put into a dyeing machine, and after heat preservation is carried out for 20 minutes at 80 ℃ for color fixation, dyeing is completed. Finally, putting the dyed polyamide braid into a braid setting machine, and preserving the heat for 1 minute at 160 ℃ to finish setting.
(d) A shade part L * Value determination
The dyed polyamide yarn was measured by JIS Z8722.5 method, the polyamide composite yarn in the yarn was drawn out, the thick yarn and the thin yarn were separated, yarn samples were produced on a yarn dyeing machine (Nanto Sansi, Y108 type) under conditions of a winding tension of 5g and a winding layer number of 12 layers, and L-color portion samples and light color portion samples were measured, respectively * Value, L * Value difference = rich colour part L * Value-light color section L * Values.
(3) Gram weight of knitted article
The gram weight of the braid was measured according to standard ASTM D3776/2646.
(4) Strength of processed silk
The strength of the fibers was tested according to standard GB/T14344-2008.
(5) Number of intersecting collaterals
The method is tested according to the standard FZ/T50001-2005 as follows: an initial load of 0.1cN/dtex is first applied to the yarn, then a certain length, typically 1m, is marked on the yarn, and after 30s of load is applied, the number of crossovers of the yarn within 1m length is measured.
(6) CF value
The CF value of the fiber was measured by using an automatic crosslinking degree tester (ENTANGLEMENT TESTER-2040 by Rothschill Co., ltd.) according to the method described in JIS L1013 (2010).
Example 1
The terminal amino content was set to 0.5X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 4.3X10 -5 The mol/g polyamide fiber B is compounded in the proportion of 1:1, and the cross linking pressure is that0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the distribution effect of the color mixing pattern is shown in FIG. 1.
Example 2
The terminal amino content was set to 0.8X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 4.3X10 -5 The polyamide fiber B with mol/g is compounded in the proportion of 3:1 to obtain the compound, and the cross linking pressure is 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 2.
Example 3
The terminal amino content was 1.3X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 4.3X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:3 to obtain a compound, and the compound is compounded at a crosslinking pressure of 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 3.
Example 4
The terminal amino content was set to 0.8X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 6.5X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the light color part of the woven product are formedRich color part L * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 4.
Example 5
The terminal amino content was set to 0.8X10 -5 The mol/g of polyamide fiber A and the terminal amino content were 9.5X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1 to obtain a compound, and the compound is compounded at a crosslinking pressure of 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 5.
Example 6
The terminal amino content was set to 0.5X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 4.3X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 1.5kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 6.
Example 7
The terminal amino content was set to 0.5X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 4.3X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 2.0kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the color mixture pattern distribution effect is shown in FIG. 7.
Comparative example 1
The terminal amino content was set to 0.8X10 -5 The mol/g of polyamide fiber A and the terminal amino content were 1.3X10 -5 After compounding the mol/g polyamide fiber B in a ratio of 1:1, the crosslinking pressure was 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the color mixture pattern distribution effect is shown in FIG. 8.
Since the difference in the terminal amino group content between the polyamide fiber B and the polyamide fiber A is less than 3.0X10 -5 mol/g, L of light color part and thick color part after dyeing the knitted fabric * The value difference is small, and the effect of different colors is not reflected.
Comparative example 2
The terminal amino content was set to 6.5X10 -5 The mol/g of polyamide fiber A and the terminal amino content were 9.5X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the thick color part L of the woven product are adopted * The values are shown in Table 1, and the color mixture pattern distribution effect is shown in FIG. 9.
Since the terminal amino groups of the polyamide fiber A and the polyamide fiber B are high, the difference between them is 3.0X10 -5 mol/g, L of light color part and thick color part after dyeing the obtained knitted fabric * The value difference is small, and the effect of different colors is not reflected.
Comparative example 3
The terminal amino content was 1.5X10 -5 The mol/g of polyamide fiber A and the terminal amino content are 6.5X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting black acid dye with the concentration of 0.50owf percent, and the gram weight, the light color part and the light color part of the woven product are formedRich color part L * The values are shown in Table 1, and the distribution effect of the color mixture pattern is shown in FIG. 10.
Since the terminal amino groups of the polyamide fiber A and the polyamide fiber B are high, the difference between them is 3.0X10 -5 mol/g or more, L of light color part and thick color part after dyeing the obtained knitted fabric * The value difference is small, and the effect of different colors is not reflected.
Comparative example 4
The cationic polyamide fiber C and the terminal amino group content are 4.3X10 -5 The mol/g polyamide fiber B is compounded in a ratio of 1:1, and the crosslinking pressure is 0.8kg/m 2 And (3) processing under the condition of obtaining the composite processing yarn, and testing the strength, the number of cross-linking and the CF value of the obtained composite processing yarn. After the composite processing yarn is made into a woven product, the woven product is dyed and shaped by adopting 0.50owf% of black cationic dye, and the gram weight, the light color part and the heavy color part L of the woven product are formed * The values are shown in Table 1, and the color mixture pattern distribution effect is shown in FIG. 11.
The strength of the overall polyamide composite fiber is low due to the poor strength of the cationic polyamide fiber C.
Claims (6)
- The polyamide composite processing yarn mainly comprises polyamide fiber A and polyamide fiber B, and is characterized in that: the terminal amino group content of the polyamide fiber A is 1.3X10 -5 mol/g or less, and the difference in terminal amino content between the polyamide fiber B and the polyamide fiber A is 3.0X10 -5 mol/g or more.
- The polyamide composite processing yarn of claim 1, wherein: the composite ratio of the polyamide fiber A to the polyamide fiber B is 1:3-3:1.
- Polyamide complex according to claim 1 or 2The synthetic yarn is characterized in that: after the composite yarn was formed into a woven fabric, L was measured in a concentrated color portion and a light color portion by JIS Z8722.5 method * Value, light color part and heavy color part L * The difference in value is 10 to 50.
- A polyamide composite processing yarn as claimed in claim 3 wherein: the light color parts are distributed in a punctiform or strip-shaped pattern.
- The polyamide composite processing yarn as claimed in claim 4 wherein: the number of the cross-linking in the composite processing yarn is less than 150/m.
- The polyamide composite processing yarn as claimed in claim 4 or 5, wherein: the number of the cross-linking in the composite processing yarn is less than 100/m.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110073133 | 2021-01-20 | ||
| CN2021100731331 | 2021-01-20 | ||
| PCT/CN2022/072699 WO2022156699A1 (en) | 2021-01-20 | 2022-01-19 | Polyamide composite textured yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116710605A true CN116710605A (en) | 2023-09-05 |
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|---|---|---|---|
| CN202280008299.8A Pending CN116710605A (en) | 2021-01-20 | 2022-01-19 | Polyamide composite processing yarn |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN116710605A (en) |
| TW (1) | TW202235710A (en) |
| WO (1) | WO2022156699A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295329A (en) * | 1980-06-10 | 1981-10-20 | E. I. Du Pont De Nemours And Company | Cobulked continuous filament heather yarn method and product |
| IL141240A0 (en) * | 2001-02-01 | 2002-03-10 | Nilit Ltd | Improved process for the manufacture of polyamide yarns dyeable in melange shades |
| CN102877182A (en) * | 2011-07-15 | 2013-01-16 | 东丽纤维研究所（中国）有限公司 | Polyamide fiber sewing thread and method for producing same |
| WO2017091159A1 (en) * | 2015-11-25 | 2017-06-01 | Thai Toray Synthetics Co., Ltd. | Combined nylon filament yarn |
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2022
- 2022-01-19 WO PCT/CN2022/072699 patent/WO2022156699A1/en active Application Filing
- 2022-01-19 TW TW111102141A patent/TW202235710A/en unknown
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| TW202235710A (en) | 2022-09-16 |
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