CN1448549A - Manufacture of cationic dye dyeable polypropylene fiber - Google Patents
Manufacture of cationic dye dyeable polypropylene fiber Download PDFInfo
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- CN1448549A CN1448549A CN 02111264 CN02111264A CN1448549A CN 1448549 A CN1448549 A CN 1448549A CN 02111264 CN02111264 CN 02111264 CN 02111264 A CN02111264 A CN 02111264A CN 1448549 A CN1448549 A CN 1448549A
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Abstract
Common fiber level polypropylene resin is mixed with additives and the mixture is fusion spinned to produce dyeable polypropylene fiber with spinning temperature of 230-290 deg.c. The dyeing additives include component A and component B, the component A is any one of polyglycol, polypropylene glycol and polytetramethylene glycol with polymerization degree of 1000-3000; and the component B is copolymer of dimethyl terephthalate, 5-alkali metal sulfonate dimethyl terephthalate and glycol. The content of the component A is 0.5-3 wt% while that of component B is 5-15 wt%. The prepared polypropylene fiber is dyeable with cationic dye at normal pressure, with dyeing rate being over 75 % and the color fastness being over Grade 4.
Description
Technical field
The present invention relates to the manufacture method of dyeable polypropylene, particularly improve additive, make the manufacture method of dyeable polypropylene through blend melt spinning by in general fibre grade polypropylene resin, adding dyeing.
Background technology
Polypropylene fibre is cheap because of its cost of material, production technology is simple, fiber light weight, chemical-resistant resistance, warmth retention property and lead plurality of advantages such as moist preferably, and development in recent years is rapid, and its Application Areas also constantly enlarges.But because crystalling propylene degree height, structure is tight, and does not have the polar group that can combine with dye molecule on the strand, and it can not be dyeed with the method for routine.Usually people adopt the colored fibre of original liquid coloring or Masterbatch method of colouring spinning heavy colour, but this can have high dyeing flexibility and color diversity not as fiber or fabric printing after all.Be subjected to people's attention deeply so improve the dyeability of polypropylene fiber always.
In the prior art, be the method for improving the polypropylene fiber dyeability comparatively commonly used with blending modification method.It will have the dyeing group on the molecule, and can be well be incorporated in the polypropylene with the coloration additive of acrylic resin blended melting and goes, and carries out blend melt spinning then.This method is easy to implement technically, and less to the mechanical property influence of fiber.Propose acrylic resin and a certain amount of mylar blend melt spinning are made the dyeable polypropylene fiber as the flat 6-25912 of Japanese Patent Application Laid-Open.CN93114967.3, CN96105290 etc. have all proposed a kind of coloration additive and acrylic resin to be carried out blend melt spinning, and the fiber that makes has good dyeability.But the prepared dyeable polypropylene fiber of these existent method can only dye with DISPERSE DYES, available cationic dyeing also has but rarely reporting of higher dye uptake, and we know no matter cation dyes all are better than DISPERSE DYES from the vividness of color, the diversity and the COLOR FASTNESS of color.
Summary of the invention
Technical problem to be solved by this invention provides a kind of manufacture method of dyeable polypropylene, improves additive by add dyeing in the plain polypropylene resin, and the dyeable polypropylene that makes through blend melt spinning can adopt cationic dyeing.
Below be the technical scheme that the present invention solves the problems of the technologies described above:
A kind of manufacture method of dyeable polypropylene fiber, this method adopts in the general fibre grade polypropylene resin and adds coloration additive, make the dyeable polypropylene fiber through blend melt spinning, spinning temperature is 230～290 ℃, coloration additive comprises component A and component B, wherein: component A is any polyethylene glycols compound in polyethylene glycol, polypropylene glycol or the polytetramethylene glycol, and its degree of polymerization is 1000～3000;
The copolymer of component B for forming by monomer a, b, c copolymerization, the inherent viscosity of this copolymer [η] is 0.30～0.55, the fusing point of copolymer is 200～250 ℃.Wherein:
A is a dimethyl terephthalate (DMT);
B be between the 5-sulfonic acid alkali metal salts (to) rutgers;
C is an ethylene glycol,
The ratio of three kinds of monomers is determined by following mol ratio in the copolymer:
a∶b＝100∶(5～25)，(a+b)∶c＝1∶(1～2.5)，
Be used for spinning adding the acrylic resin mixture of coloration additive, the content of coloration additive component A is 0.5～3wt%, the content of component B is 5～15wt%.
The ratio of three kinds of monomers is preferably determined by following mol ratio in the above-mentioned component B copolymer:
a∶b＝100∶(8～15)，(a+b)∶c＝1∶(1.5～2.0)；
Be used for spinning adding the acrylic resin mixture of coloration additive, the content of coloration additive component A is preferably 1～2wt%; The content of coloration additive component B is preferably 6～12wt%.
In manufacture process, can be earlier described coloration additive and common acrylic resin be obtained master batch by weight 10～30: 100 mixed melting granulations, then with master batch and remaining acrylic resin blend melt spinning.Also coloration additive and plain polypropylene resin can be pressed the direct blend melt spinning of required mixed, the polypropylene fiber filament number of manufacturing is generally 1.5dtex～7dtex.
In the present invention, its key is being used of component A and component B, and the adding of component B provides for the seat that dyes that dyes on the cation dyes, and the degree of crystallinity of polypropylene fiber can be further regulated in the adding of component A, makes it be in a suitable scope.This makes macromolecular structure become appropriate loose, spreads to fibrous inside thereby help dyestuff.The addition of coloration additive has remarkable influence to the dyeability of fiber, and the inventor finds that the content of component A is lower than 0.5wt%, and the content of component B is when being lower than 5wt%, and the dye-uptake of fiber obviously descends.But because coloration additive presents the state that is separated in the melt system, additive is to be evenly dispersed in the polypropylene continuous phase with spherical decentralized photo.Along with the increase of additive level, it is big that dispersed phase size becomes, and the uniformity of system is variation gradually.When the content of component A surpasses 3wt%, and the content of component B will influence the physical and mechanical properties of the spinning properties and the fiber of melt when surpassing 15wt%.It is considered herein that the content of coloration additive component A is 0.5～3wt%, and the content of component B is that 5～15wt% is feasible, but the content of component A is preferably 1～2wt%, and the content of component B is preferably 6～12wt%.
Compared with prior art, the invention has the advantages that the polypropylene fiber that makes can boil under normal pressure with cation dyes dyes, and dye-uptake reaches more than 75%, and COLOR FASTNESS reaches more than 4 grades.
The specific embodiment
To enumerate some embodiment below and come further details of the present invention to be described, in an embodiment, the method for testing of the dye uptake of fiber and the definition of dye uptake are as follows.Method of testing: instrument: sample dyeing machine, 721 type spectrophotometers; Reagent: malachite green, cation dyes (yellow 8GL, red 5GN, blue RL); The dye liquor preparation: bath raio is 1: 100, and the consumption of 1g fiber is 0.2% malachite green or cation dyes 5ml, is equipped with deionized water 95ml; Dyeing condition: go into to dye for 70 ℃, be heated to 100 ℃ in 20 minutes, boil and dye 40 minutes, stop heating and kept 30 minutes, take out sample and be cooled to the room temperature after washing.The mensuration of dyeing residual liquid optical density: get the 20ml dyeing residual liquid, merge the back with the stained specimens water lotion and move into volumetric flask, with its optical density of spectrophotometric instrumentation; The mensuration of dyeing stoste optical density: get 20ml dyeing stoste, the deionized water dilution of immigration volumetric flask with stained specimens water lotion same amount is with its optical density of spectrophotometric instrumentation.
[embodiment 1～8]
Earlier coloration additive and common acrylic resin are fed in the impeller by 20: 100 weight ratio and mix, this mixture adopts double screw extruder melt pelletization under 150～200 ℃ of temperature to make master batch, acrylic resin with master batch and aequum mixes then, melt spinning on short thread spinning plant, spinning temperature is 230～290 ℃, produce polypropylene short fiber, its specification is 2.78dtex * 67mm and 5.78dtex * 102mm.Other process conditions of spinning are identical with general polypropylene fiber spinning, and this those of ordinary skill by this field is known.Coloration additive component A, the component B of each embodiment see Table 1, be used for spinning adding the acrylic resin mixture of coloration additive, the content of coloration additive component A and component B sees Table 2, the performance of fiber sees Table 3.[embodiment 9～11]
Coloration additive and plain polypropylene resin are pressed the evenly direct blend melt spinning in back of required mixed, and all the other are with [embodiment 1～8].Coloration additive component A, the component B of each embodiment see Table 1, be used for spinning adding the acrylic resin mixture of coloration additive, the content of coloration additive component A and component B sees Table 2, the performance of fiber sees Table 3.Table 1.
| Component A | Component B | |||
| A: b (mol ratio) | A+b: c (mol ratio) | [η] (pool) | ||
| Embodiment 1 | Polyethylene glycol | ????100∶5 | ????1∶2.5 | ????0.55 |
| Embodiment 2 | Polypropylene glycol | ????100∶15 | ????1∶2 | ????0.53 |
| Embodiment 3 | Polytetramethylene glycol | ????100∶25 | ????1∶1 | ????0.50 |
| Embodiment 4 | Polyethylene glycol | ????100∶8 | ????1∶1 | ????0.54 |
| Embodiment 5 | Polyethylene glycol | ????100∶12 | ????1∶1.5 | ????0.52 |
| Embodiment 6 | Polytetramethylene glycol | ????100∶20 | ????1∶2.5 | ????0.49 |
| Embodiment 7 | Polypropylene glycol | ????100∶25 | ????1∶1 | ????0.48 |
| Embodiment 8 | Polypropylene glycol | ????100∶8 | ????1∶1.5 | ????0.52 |
| Embodiment 9 | Polyethylene glycol | ????100∶12 | ????1∶1 | ????0.44 |
| Embodiment 10 | Polyethylene glycol | ????100∶25 | ????1∶1.5 | ????0.38 |
| Embodiment 11 | Polytetramethylene glycol | ????100∶15 | ????1∶1.5 | ????0.31 |
Annotate: the degree of polymerization of component A is 1000～3000; Component B is the copolymer of monomer a, b, c copolymerization, and wherein: a is a dimethyl terephthalate (DMT); B be between the 5-sulfonic acid alkali metal salts (to) rutgers; C is an ethylene glycol.[η] is the inherent viscosity of copolymer, and the fusing point of copolymer is 200～250 ℃.Table 2.
Table 3.
| Component A (wt%) | Component B (wt%) | |
| Embodiment 1 | ????0.5 | ????5 |
| Embodiment 2 | ????0.5 | ????10 |
| Embodiment 3 | ????0.5 | ????15 |
| Embodiment 4 | ????1 | ????6 |
| Embodiment 5 | ????1 | ????8 |
| Embodiment 6 | ????1 | ????10 |
| Embodiment 7 | ????1 | ????12 |
| Embodiment 8 | ????2 | ????8 |
| Embodiment 9 | ????2 | ????12 |
| Embodiment 10 | ????2 | ????15 |
| Embodiment 11 | ????3 | ????8 |
| Dye-uptake (%) | Fracture strength (CN/dtex) | ||||
| Cationic yellow 8GL | Cationic red 5GN | Cationic blue RL | Peacock | ||
| Embodiment 1 | ????73.25 | ????73.10 | ????72.18 | ????72.30 | ????3.42 |
| Embodiment 2 | ????83.53 | ????83.80 | ????82.20 | ????85.26 | ????3.31 |
| Embodiment 3 | ????91.10 | ????90.80 | ????90.66 | ????90.10 | ????3.10 |
| Embodiment 4 | ????88.50 | ????88.36 | ????89.40 | ????89.40 | ????3.44 |
| Embodiment 5 | ????94.16 | ????93.98 | ????94.30 | ????94.20 | ????3.42 |
| Embodiment 6 | ????96.53 | ????97.76 | ????98.20 | ????98.14 | ????3.40 |
| Embodiment 7 | ????96.70 | ????97.90 | ????98.40 | ????98.45 | ????3.33 |
| Embodiment 8 | ????96.20 | ????97.24 | ????97.80 | ????95.68 | ????3.30 |
| Embodiment 9 | ????97.10 | ????97.30 | ????98.00 | ????98.05 | ????3.20 |
| Embodiment 10 | ????98.08 | ????98.26 | ????98.30 | ????98.48 | ????3.12 |
| Embodiment 11 | ????98.10 | ????98.20 | ????98.32 | ????98.50 | ????3.06 |
Claims (6)
1, a kind of manufacture method of dyeable polypropylene fiber, this method adopts in the general fibre grade polypropylene resin and adds coloration additive, makes the dyeable polypropylene fiber through blend melt spinning, and spinning temperature is 230～290 ℃, coloration additive comprises component A and component B, wherein:
Component A is any polyethylene glycols compound in polyethylene glycol, polypropylene glycol or the polytetramethylene glycol, and its degree of polymerization is 1000～3000;
The copolymer of component B for forming by monomer a, b, c copolymerization, the inherent viscosity of this copolymer is 0.30～0.55, fusing point is 200～250 ℃, wherein:
A is a dimethyl terephthalate (DMT);
B be between the 5-sulfonic acid alkali metal salts (to) rutgers;
C is an ethylene glycol,
The ratio of three kinds of monomers is determined by following mol ratio in the copolymer:
a∶b＝100∶5～25，a+b∶c＝1∶1～2.5，
Be used for spinning adding the acrylic resin mixture of coloration additive, the content of coloration additive component A is 0.5～3wt%, the content of component B is 5～15wt%.
2, the manufacture method of dyeable polypropylene fiber according to claim 1 is characterized in that the ratio of three kinds of monomers in the described component B copolymer is determined by following mol ratio:
a∶b＝100∶8～15，a+b∶c＝1∶1.5～2.0。
3, the manufacture method of dyeable polypropylene fiber according to claim 1 is characterized in that the described acrylic resin mixture that spinning has added coloration additive that is used for, and the content of coloration additive component A is 1～2wt%.
4, the manufacture method of dyeable polypropylene fiber according to claim 1, the acrylic resin mixture of coloration additive that it is characterized in that the described adding that is used for spinning, the content of coloration additive component B is preferably 6～12wt%.
5, according to the manufacture method of claim 1,2,3 or 4 described dyeable polypropylene fibers, it is characterized in that earlier with described coloration additive and common acrylic resin by weight 10～30: 100 mixed melting granulations obtain master batch, then with master batch and remaining acrylic resin blend melt spinning.
6,, it is characterized in that described coloration additive and plain polypropylene resin are by the direct blend melt spinning of required mixed according to the manufacture method of claim 1,2,3 or 4 described dyeable polypropylene fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111264 CN1448549A (en) | 2002-04-04 | 2002-04-04 | Manufacture of cationic dye dyeable polypropylene fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111264 CN1448549A (en) | 2002-04-04 | 2002-04-04 | Manufacture of cationic dye dyeable polypropylene fiber |
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| Publication Number | Publication Date |
|---|---|
| CN1448549A true CN1448549A (en) | 2003-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02111264 Pending CN1448549A (en) | 2002-04-04 | 2002-04-04 | Manufacture of cationic dye dyeable polypropylene fiber |
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2002
- 2002-04-04 CN CN 02111264 patent/CN1448549A/en active Pending
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