CN106319653A - Polyamide-6 drawn yarns capable of being dyed by cationic dyestuff and production process of polyamide-6 drawn yarns - Google Patents

Abstract

The invention relates polyamide-6 drawn yarns capable of being dyed by cationic dyestuff and a production process of the polyamide-6 drawn yarns. The polyamide-6 drawn yarns capable of being dyed by the cationic dyestuff are characterized in that the polyamide-6 drawn yarns capable of being dyed by the cationic dyestuff are prepared through the step of treating polyamide-6 slices through a high-speed spinning method; the linear density of the polyamide-6 drawn yarns capable of being dyed by the cationic dyestuff is 22dtex to 77dtex. The production process provided by the invention is simple and efficient and the quality of a product is high; market requirements can be effectively met and a market prospect is wide.

Description

Cationic dye capable of dyeing chinlon 6 drafting silk and production technology thereof

Technical field:

The invention belongs to field of textiles, be specifically related to a kind of cationic dye capable of dyeing chinlon 6 drafting silk and production technology thereof.

Background technology:

At present, in the fierce market competition, the functional product Development and Production of differential high added value has become the developing direction of nylon 6 long filament industry, invention novel product of only constantly bringing forth new ideas, and creates novel fabric for weaving mill, could win in the market competition.By inventing the specification product of such high-tech and producing in batches, value-added content of product can be increased, promote profit on sales.

Summary of the invention:

It is an object of the invention to provide a kind of cationic dye capable of dyeing chinlon 6 drafting silk and production technology thereof, production technology is simple, efficient, and product quality is high, can effectively meet the market demand, have wide market prospect.

For achieving the above object, the present invention adopts the following technical scheme that

Subject cationic dye capable of dyeing chinlon 6 drafting silk, it is characterized in that: described cationic dye capable of dyeing chinlon 6 drafting silk is cut into slices by nylon 6 and prepared cationic dye capable of dyeing chinlon 6 drafting silk, the line density 22-77dtex of gained cationic dye capable of dyeing chinlon 6 drafting silk at high speed spinning processes.

Further, the particular product performance parameters of above-mentioned cationic dye capable of dyeing chinlon 6 drafting silk: line density 22-77dtex, fracture strength >=4.5g/dtex, elongation at break 38-48%, internet pricing 12-25/rice, boiling water shrinkage 8-11 %, oil content 1.0-1.5%, dyeing 4.5 grades, the uniformity≤1.60%.

Further, the production craft step of above-mentioned cationic dye capable of dyeing chinlon 6 drafting silk is as follows:

1) screw extruder is sent in the section needed for stored in feed bin and offer being produced；

2) section is carried out heating, melt, measure and produce predetermined pressure extrude from the head of screw rod through feed zone, compression section, metering section by screw extruder；

3) melt extruded enters into melt metering pump, melt metering pump then accurate measurement, carries high polymer molten continuously, and produces predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, sprays from spinneret, forms as-spun fibre in atmosphere；

4) melt that melt metering pump is sent here by filament spinning component, through filtering off the removal of impurity, after mix homogeneously, is sprayed into filament bar from spinneret micropore equably, then forms, through quickly cooling and the slow cooling of cross air blasting cooling system, the fiber that crystallization orthodromic is good；

5) fiber after molding is carried out oiling operation through oil feeding system, oils strand oil feeding system homogeneous constant, reduces the frictional force of strand and silk road, increases the coherent of silk, eliminates electrostatic, promotes spinning efficiency, it is ensured that the working (machining) efficiency of subsequent handling；

6) fiber after oiling enters into pre-network device, and pre-network device makes strand tow under relatively low gas pressure be wound around mutually, and oil content evenly, increases the coherent of silk；

7) fiber after pre-network device processes imports two draw-off godets, is stretched strand and thermal finalization by the friction speed of two draw-off godets, thus changes the internal structure of silk, makes silk reach prescription；

8) again fiber strand silk is sent in master network device, makes the oil content of strand evenly by master network device, increase nexus further and increase the coherent of tow, effectively promote spinning efficiency；

9) through the fiber strand silk of master network device operation again through a draw-off godet seal wire, strand is made to wind the most regularly by winding operation thereafter；

10) carry out drawing-off process while winding, check thereafter, pack, finished product outbound after counterpoise.

Subject cationic dye capable of dyeing chinlon 6 elastic filament main technologic parameters controls as follows:

Biphenyl temperature: 252-287 DEG C, melt temperature: 250-274 DEG C, spins pressure: 110-120kgf/cm2, G.P rotating speed: 13.2-20.1rpm, O.P rotating speed: 16.2-18.5rpm, side-blown wind speed: 0.35-0.6m/s, draw ratio DR:1.15-1.25, spins speed: 4800-5200m/min.

The remarkable advantage of the present invention is: production technology of the present invention is simple, efficient, and product quality is high, can effectively meet the market demand, have wide market prospect.

Accompanying drawing illustrates:

Fig. 1 is the process chart of drafting silk of the present invention.

Detailed description of the invention:

Subject cationic dye capable of dyeing chinlon 6 drafting silk production process illustrates:

1) feed bin: store and the section needed for production is provided；

2) screw extruder: section being carried out heats, melts, measures and produce predetermined pressure extrude from the head of screw rod through feed zone, compression section, metering section；

3) melt metering pump: accurate measurement, carry high polymer molten continuously, and produce predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, spray from spinneret, form as-spun fibre in atmosphere；

4) filament spinning component: the melt that dosing pump is sent here, through filtering off the removal of impurity, after mix homogeneously, under certain shearing force and reasonable pressure set, from spinneret wire vent hole, it is sprayed into filament bar uniformly, then forms appropriate crystalline fiber through the effect of cross air blasting cooling；

5) cross air blasting system: the strand of spinneret orifice ejection is quickly cooled down and slow cooling forms the fiber that crystallization orthodromic is good；

6) oil feeding system: homogeneous constant strand is oiled: 1, reduce the frictional force of strand and silk road；2, the coherent of silk is increased；3, eliminate electrostatic, promote spinning efficiency, guarantee later process working (machining) efficiency；

7) pre-network device: make the oil content of strand evenly, increases the coherent of silk；

8) draw-off godet: stretched strand and thermal finalization by the friction speed of draw-off godet, thus change the internal structure of silk, makes silk reach relevant prescription；

9) master network device: make the oil content of strand evenly, increases silk further and beats the coherent of nexus increase tow, effectively promote spinning efficiency；

10) winding: make strand be wound into spinning cake the most regularly and control the package of fixed length and weight.

Subject cationic dye capable of dyeing chinlon 6 drafting silk finished product physical property:

Line density

Fracture strength

Elongation at break

Internet pricing

Boiling water shrinkage

Oil content

The uniformity

Dyeing

22-77dtex

≥4.5g/dtex

38-48%

12-25/rice

8-11%

1.0-1.5%

≤1.60%

4.5 level

Subject cationic dye capable of dyeing chinlon 6 drafting silk technological condition:

Biphenyl temperature: 252-287 DEG C

Melt temperature: 250-274 DEG C

Spin pressure: 110-120kgf/cm2

G.P rotating speed: 13.2-20.1rpm

O.P rotating speed: 16.2-18.5rpm

Side-blown wind speed: 0.35-0.6m/s

Draw ratio DR:1.15-1.25

Spin speed: 4800-5200m/min

The present invention captures a difficult problem:

1) cationic dye capable of dyeing chinlon 6 drafting silk is under conditions of more than 5000m/min high-speed spinning, and all kinds of process conditions are arranged to work as, and spins condition, product quality normally, and AA leads and is up to 96%；

2) adding in feed bin and prevent oxidant, protection raw material is not oxidized；

3) quality cut into slices by optimizing materials, solve that ingot interdigit winding tension variation during production cationic dye capable of dyeing chinlon 6 drafting silk is big, broken end finished product elongation at break variation the most abnormal, promote dyeing quality and efficiency, increase back segment Colour Difference competitiveness；

4) Develop new oil preparation by improvement spinning oil, and be applied to this series of products, improve the frictional property of strand, antistatic behaviour, holding in spinning production process, improve follow-up woven efficiency, reduce woven filoplume incidence rate.

5) Cooled down by adjustment and oil feeding system improves cationic dye capable of dyeing chinlon 6 drafting silk spinning crystal property transitivity index uniformity, solve the exception of product dyeing streak；

6) Improveing configuration by the optimization of assembly formula, minimizing is breaked end, waft silk, improves the spinnability of product；

7) By constantly adjusting the temperature of spinning extruder, pressure, select the most rational process conditions, improve spinnability and the product quality of spinning；

8) By adjusting the levelness of up-coiler, perpendicularity and component optimization, improve spinning cake shaping, improve outward appearance and back segment processing backing-off performance, promote weaving efficiency；

9) By adjusting the discharge-amount controlling network gas, draw optimal nexus, improve the holding of tow；

10) adjust the speed of drawing-off, improve process efficiency and quality after rate of loosening, the molding of optimization spinning cake and backing-off performance, lifting；

11) develop special silk to lead and oil nozzle, reduce the Silk Road friction, optimize product quality.

The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.

Claims (4)

1. cationic dye capable of dyeing chinlon 6 drafting silk, it is characterized in that: described cationic dye capable of dyeing chinlon 6 drafting silk is cut into slices by nylon 6 and prepared cationic dye capable of dyeing chinlon 6 drafting silk, the line density 22-77dtex of gained cationic dye capable of dyeing chinlon 6 drafting silk at high speed spinning processes.

Cationic dye capable of dyeing chinlon 6 drafting silk the most according to claim 1, it is characterized in that: the particular product performance parameters of described cationic dye capable of dyeing chinlon 6 drafting silk: line density 22-77dtex, fracture strength >=4.5g/dtex, elongation at break 38-48%, internet pricing 12-25/rice, boiling water shrinkage 8-11 %, oil content 1.0-1.5%, dyeing 4.5 grades, the uniformity≤1.60%.

3. the technique producing cationic dye capable of dyeing chinlon 6 drafting silk as claimed in claim 1, it is characterised in that: the production craft step of cationic dye capable of dyeing chinlon 6 drafting silk is as follows:

1) screw extruder is sent in the section needed for stored in feed bin and offer being produced；

2) section is carried out heating, melt, measure and produce predetermined pressure extrude from the head of screw rod through feed zone, compression section, metering section by screw extruder；

3) melt extruded enters into melt metering pump, melt metering pump then accurate measurement, carries high polymer molten continuously, and produces predetermined pressure, to ensure that spinning melt overcomes the resistance of filament spinning component, sprays from spinneret, forms as-spun fibre in atmosphere；

4) melt that melt metering pump is sent here by filament spinning component, through filtering off the removal of impurity, after mix homogeneously, is sprayed into filament bar from spinneret micropore equably, then forms, through quickly cooling and the slow cooling of cross air blasting cooling system, the fiber that crystallization orthodromic is good；

5) fiber after molding is carried out oiling operation through oil feeding system, oils strand oil feeding system homogeneous constant, reduces the frictional force of strand and silk road, increases the coherent of silk, eliminates electrostatic, promotes spinning efficiency, it is ensured that the working (machining) efficiency of subsequent handling；

6) fiber after oiling enters into pre-network device, and pre-network device makes strand tow under relatively low gas pressure be wound around mutually, and oil content evenly, increases the coherent of silk；

7) fiber after pre-network device processes imports two draw-off godets, is stretched strand and thermal finalization by the friction speed of two draw-off godets, thus changes the internal structure of silk, makes silk reach prescription；

8) again fiber strand silk is sent in master network device, makes the oil content of strand evenly by master network device, increase nexus further and increase the coherent of tow, effectively promote spinning efficiency；

9) through the fiber strand silk of master network device operation again through a draw-off godet seal wire, strand is made to wind the most regularly by winding operation thereafter；

10) carry out drawing-off process while winding, check thereafter, pack, finished product outbound after counterpoise.

The technique producing cationic dye capable of dyeing chinlon 6 drafting silk the most according to claim 3, it is characterised in that: cationic dye capable of dyeing chinlon 6 elastic filament main technologic parameters controls as follows:

Biphenyl temperature: 252-287 DEG C, melt temperature: 250-274 DEG C, spins pressure: 110-120kgf/cm2, G.P rotating speed: 13.2-20.1rpm, O.P rotating speed: 16.2-18.5rpm, side-blown wind speed: 0.35-0.6m/s, draw ratio DR:1.15-1.25, spins speed: 4800-5200m/min.