CN103233289B - Viscose monofilament production process - Google Patents
Viscose monofilament production process Download PDFInfo
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- CN103233289B CN103233289B CN201310118995.7A CN201310118995A CN103233289B CN 103233289 B CN103233289 B CN 103233289B CN 201310118995 A CN201310118995 A CN 201310118995A CN 103233289 B CN103233289 B CN 103233289B
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Abstract
The invention relates to a viscose monofilament production process. Cellulose fiber pulp is adopted as a raw material, and the steps such as spinning solution preparation, spinning, and post-treatment are carried out, such that the viscose monofilament is obtained. The method specifically comprises the process steps that: (A) cellulose fiber pulp is subjected to impregnation, aging, yellowing, dissolving, defoaming, and filtering, such that the spinning solution is prepared; (B) the spinning solution is delivered into a spinning machine, and passes through a spinning hole with a single-hole nozzle under pressure, such that viscose thin stream is formed, and raw filament strip is formed after coagulation molding, wherein jet nozzle stretch is +60% to +80%, and a spinning hole inlet pore channel is in a parabolic shape; and (C) post-treatment is carried out, wherein the raw filament strip is subjected to desulfurization, bleaching, oiling, and bake-drying, such that the viscose monofilament is obtained. With the production process provided by the invention, produced viscose monofilament has fineness of 50-6000D, and high strength higher than 75CN. With the viscose monofilament, requirements by dyeing, weaving and finished garments can be satisfied.
Description
Technical field
The present invention relates to textile industry viscose glue technical field, be specifically related to a kind of production technology of viscose monofilament.
Background technology
Monofilament refers to that its fiber number is in 50D ~ 6000D scope by the one filament obtained by single hole spinning head in production of chemical fibre.Monofilament be widely used in weave, manual ornaments, family spin and industrial goods etc.The weaving quality made with monofilament is thin, transparency and good hand touch.
Along with the raising of people's living standard, the fabric development with individual style is had higher requirement.Monofilament was only used in industry in the past, field is spun by family.Because monofilament is lower than the multifilament intensity with fiber number, in woven field, in weaving process and processing technology, there is larger difficulty, limit the development of monofilament at field of textiles.At present, the monofilament that common monofilament has polyamide fibre and this kind of synthetic fiber of terylene to make.
As CN200710190428.7, the patent of invention that name is called " woven monofilament and production method ", discloses a kind of woven monofilament and production method, and the warp thread forming this fabric is monofilament, and described monofilament is polyamide fibre or terylene.But polyamide fibre and terylene are synthetic fiber, and the fabric be made up of polyamide fibre or polyester monofilament is not easily degraded, and affects environment, hygroscopicity is low simultaneously, taking is poor.
Viscose monofilament can be widely used in weaving and industrial circle, as wallpaper for decoration, female's bag, cap; Ornaments, as handicraft; Other family is spun, as curtain, cushion etc.But current viscose monofilament is produced exists following problem:
1, conventional manufacturing techniques can cause product strand partially hard, and feel is coarse, and cause dyeing, weave etc. descends operation processing difficulties, also has a strong impact on the wearability of fabric.
2, viscose monofilament fiber number is low, and brute force is also low, cannot carry out the dyeing of lower operation, weave production, cannot meet the need of market.
Summary of the invention
The present invention is directed to above-mentioned technical problem, research and develop a kind of production technology of viscose monofilament.The viscose monofilament fiber number prepared by production technology of the present invention is 50 ~ 6000D, powerful high, can reach more than 75CN, meets dyeing, to weave and finished product takes demand.Strand is partially hard, and feel is soft, does not affect dyeing, weaves the processing of lower operation and process, fabric good hand touch, take comfortable.
For achieving the above object, the present invention adopts following technical scheme:
A production technology for viscose monofilament, is characterized in that: take cellulose fiber pulp as raw material, obtains viscose glue individual thread through spinning solution preparation-spinning-post processing, specifically comprises following processing step:
Prepared by A spinning solution
Cellulose fiber pulp obtains spinning solution through dipping, experienced, yellow, dissolving, deaeration and filtration;
B spinning
Spinning solution sends spinning machine to by for sebific duct road, is quantitatively sent into by measuring pump, and spinning solution is through single hole shower nozzle, and under stress by spinneret orifice, form viscose glue thread, viscose glue thread enters coagulating bath, forms raw silk bar after coagulation forming.
Described jet stretch+60% ~+80%;
The inlet channels shape of described spinneret orifice parabolically; This shower nozzle for the production of, the viscose monofilament good spinnability obtained, strand solidifies fully, and product feel is soft.
The speed of spinning of described spinning machine is 30 ~ 80m/min.Spin speed too low, affect production efficiency, cost is high, spins fast too high, solidifies bad, strand brute force is low, feel is partially hard.
C post processing
By raw silk bar through desulfurization, bleach, oil, dry after obtain viscose monofilament.
The spinning solution that described spinning solution preparation section obtains is containing first fibre 6 ~ 10%, and containing alkali 5 ~ 7g/L, viscosity is 40 ~ 70s(falling ball viscosity), degree of ripeness is 4 ~ 8 ml.Good spinnability when this technique puts glue spinning, product feel is soft, and intensity is high, and degree of stretching is moderate.
In described spinning process, the spinneret orifice of shower nozzle is circular, and inlet channels length with the diameter ratio of spinneret orifice is: 1.0 ~ 1.5:1, and ensure that solidifying fully of strand, the viscose monofilament product good spinnability obtained, feel is soft.
The consisting of of coagulating bath in described spinning process: sulfuric acid 100 ~ 140g/L, sodium sulphate 200 ~ 250g/L, zinc sulfate 20 ~ 30g/L; Temperature is 40 ~ 55 DEG C.This coagulating bath is the high salt of low acid, and strand coagulation forming is good, and powerful high, feel is soft, good spinnability.
The desulfurization process of described post processing, the concentration of NaOH is 0.4 ~ 1.0g/L, processing time 20 ~ 60min, and temperature 50 ~ 60 DEG C, residual sulphur controls within 8mg/100g.This process product washes clean, strength loss is few, and feel is soft, does not affect strength and elongation, and strand uniform color is consistent, is convenient to dyeing.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 0.4 ~ 1.0g/L, processing time 20 ~ 60min, temperature 50 ~ 60 DEG C.The strand whiteness that this bleaching process obtains is high, and can reach more than 80%, strength damage is little, unaffected to strand strength and elongation.
The operation that oils of described post processing, the concentration of finish is 1.0 ~ 5.0g/L, processing time 20 ~ 60min, temperature 40 ~ 50 DEG C.The operation that oils can reduce frictional force and the antistatic of strand, when lower operation becomes cylinder or skeining, is easy to processing, reduces broken end, improve unwinding.
Described cellulose pulp comprises Cotton Pulp, wood pulps, bamboo pulp.
The described viscose monofilament obtained by viscose monofilament production technology, it is characterized in that: the fiber number of viscose monofilament is 50 ~ 6000D, and brute force reaches more than 75CN, dry fracture strength is 1.5 ~ 2.0CN/dtex, wet breaking strength is 1.0 ~ 1.5CN/dtex, and dry elongation at break is 15 ~ 20%.
Described viscose monofilament, the cross section of strand is circle, hollow type, triangular form, platypelloid type, and wherein, the fabric width width of platypelloid type is 1 ~ 60mm.
Beneficial effect of the present invention is:
1, because production technology of the present invention adopts the spinning head of specific standard, the inlet channels shape of spinneret orifice parabolically, is different from the cylindrical shape or cone-shaped of conventional spray orifice design, from fluid-mechanics point of view, reduce Pengization effect of viscose glue thread, ensure that solidifying of strand is abundant; Meanwhile, the excessive or too small shower nozzle that stretches easily causes the spinline breakage of ejection, and the present invention adopts the shower nozzle of stretching+60% ~+80%, and the viscose monofilament brute force obtained is high.Therefore, viscose monofilament product good spinnability of the present invention, feel are soft.
2, the coagulating bath technique adopted due to production technology of the present invention is the high salt of low acid, and molding time is long, strand sufficient reacting, and strand coagulation forming is good, and further ensure obtained viscose monofilament product brute force high, feel is soft, and degree of stretching is moderate, good spinnability.
3, because production technology of the present invention adopts the spinning solution of " low maturation, high viscosity ", the viscose monofilament degree of stretching obtained is moderate, and further ensures the spinnability of viscose monofilament product, high strength and soft feel.
The fiber number of the viscose monofilament 4, obtained by production technology of the present invention is 50 ~ 6000D, powerful high, reach 75 ~ 8000CN (different cultivars), product width uniformity, be easy to dyeing, and even dyeing, wet breaking strength is high, not easy fracture during the post processings such as dyeing, meets dyeing, to weave and finished product takes demand; And strand is partially hard, feel is soft, does not affect dyeing, weaves the processing of lower operation and process, fabric good hand touch, take comfortable.
5, production technology of the present invention adopts cellulose fibre natural material, and obtained viscose monofilament is degradation environment protection fiber, and product has good hygroscopicity, gas permeability, wearing comfort simultaneously.
Detailed description of the invention
Below in conjunction with detailed description of the invention, essentiality content of the present invention is described in further detail.
Embodiment 1
A production technology for viscose monofilament, take cellulose fiber pulp as raw material, obtains viscose glue individual thread through spinning solution preparation-spinning-post processing, specifically comprise following processing step:
Prepared by A spinning solution
Cellulose fiber pulp obtains spinning solution through dipping, experienced, yellow, dissolving, deaeration and filtration;
B spinning
Spinning solution sends spinning machine to by for sebific duct road, is quantitatively sent into by measuring pump, and spinning solution is through single hole shower nozzle, and under stress by spinneret orifice, form viscose glue thread, viscose glue thread enters coagulating bath, forms raw silk bar after coagulation forming.
Described jet stretch+60%;
The inlet channels shape of described spinneret orifice parabolically;
The speed of spinning of described spinning machine is 30m/min;
C post processing
By raw silk bar through desulfurization, bleach, oil, dry after obtain viscose monofilament.
Described cellulose pulp is Cotton Pulp.
The fiber number of obtained viscose monofilament is 70D, and brute force reaches 75CN, and dry fracture strength is 1.5CN/dtex, and wet breaking strength is 1.0CN/dtex, and dry elongation at break is 15%.
Embodiment 2
Substantially the same manner as Example 1, on this basis:
Described jet stretch+80%.
The inlet channels of described spinneret orifice is parabola, and spinneret orifice is circular, and inlet channels length with the diameter ratio of spinneret orifice is: 1.5:1.
The speed of spinning of described spinning machine is 80m/min.
Consisting of of described coagulating bath: sulfuric acid 140g/L, sodium sulphate 250g/L, zinc sulfate 30g/L; Temperature is 55 DEG C.
Described cellulose pulp is wood pulps.
The fiber number of obtained viscose monofilament is 50D, and brute force reaches 80CN, and dry fracture strength is 2.0CN/dtex, and wet breaking strength is 1.5CN/dtex, and dry elongation at break is 20%.
Embodiment 3
Substantially the same manner as Example 1, on this basis:
Described jet stretch+70%.
The inlet channels of described spinneret orifice is parabola, and spinneret orifice is circular, and inlet channels length with the diameter ratio of spinneret orifice is: 1.2:1.
The speed of spinning of described spinning machine is 50m/min.
Consisting of of described coagulating bath: sulfuric acid 120g/L, sodium sulphate 210g/L, zinc sulfate 25g/L; Temperature is 46 DEG C.
Described cellulose pulp is bamboo pulp.
The fiber number of obtained viscose monofilament is 6000D, and brute force reaches 85CN, and dry fracture strength is 1.6CN/dtex, and wet breaking strength is 1.2CN/dtex, and dry elongation at break is 18%.
Embodiment 4
Substantially the same manner as Example 1, on this basis:
The inlet channels of described spinneret orifice is parabola.
Described jet stretch+75%.
The speed of spinning of described spinning machine is 60m/min.
Consisting of of described coagulating bath: sulfuric acid 110g/L, sodium sulphate 230g/L, zinc sulfate 26g/L; Temperature is 50 DEG C.
Obtained viscose monofilament is hollow type, and fiber number is 100D, and brute force reaches 78CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.3CN/dtex, and dry elongation at break is 16%.
Embodiment 5
Substantially the same manner as Example 1, on this basis:
The inlet channels of described spinneret orifice is parabola.
Described jet stretch+76%.
The speed of spinning of described spinning machine is 65m/min.
Consisting of of described coagulating bath: sulfuric acid 115g/L, sodium sulphate 232g/L, zinc sulfate 26g/L; Temperature is 51 DEG C.
Obtained viscose monofilament is triangular form, and fiber number is 100D, and brute force reaches 78CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.3CN/dtex, and dry elongation at break is 16%.
Embodiment 6
Substantially the same manner as Example 1, on this basis:
The inlet channels of described spinneret orifice is parabola.
Described jet stretch+76%.
The speed of spinning of described spinning machine is 65m/min.
Consisting of of described coagulating bath: sulfuric acid 100g/L, sodium sulphate 200g/L, zinc sulfate 20g/L; Temperature is 40 DEG C.
Obtained viscose monofilament is platypelloid type, and fabric width width is 1mm, and fiber number is 100D, and brute force reaches 78CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.3CN/dtex, and dry elongation at break is 16%.
Embodiment 7
Substantially the same manner as Example 1, on this basis:
The inlet channels of described spinneret orifice is parabola.
Described jet stretch+76%.
The speed of spinning of described spinning machine is 65m/min.
Consisting of of described coagulating bath: sulfuric acid 115g/L, sodium sulphate 235g/L, zinc sulfate 26g/L; Temperature is 51 DEG C.
Obtained viscose monofilament is platypelloid type, and fabric width width is 30mm, and fiber number is 100D, and brute force reaches 78CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.5CN/dtex, and dry elongation at break is 16.5%.
Embodiment 8
Substantially the same manner as Example 1, on this basis:
The inlet channels of described spinneret orifice is parabola.
Described jet stretch+78%.
The speed of spinning of described spinning machine is 72m/min.
Consisting of of described coagulating bath: sulfuric acid 116g/L, sodium sulphate 225g/L, zinc sulfate 28g/L; Temperature is 52 DEG C.
Obtained viscose monofilament is platypelloid type, and fabric width width is 60mm, and fiber number is 100D, and brute force reaches 78CN, and dry fracture strength is 1.6CN/dtex, and wet breaking strength is 1.3CN/dtex, and dry elongation at break is 15.5%.
Embodiment 9
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 0.4g/L, processing time 60min, temperature 60 C, residual sulphur 8mg/100g.
The fiber number of obtained viscose monofilament is 120D, and brute force reaches 82CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.1CN/dtex, and dry elongation at break is 17.5%.
Embodiment 10
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 1.0g/L, processing time 20min, temperature 50 C, residual sulphur 5mg/100g.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 1.0g/L, processing time 20min, temperature 50 C.
The fiber number of obtained viscose monofilament is 250D, and brute force reaches 78CN, and dry fracture strength is 1.9CN/dtex, and wet breaking strength is 1.3CN/dtex, and dry elongation at break is 19%.
Embodiment 11
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 0.8g/L, processing time 40min, temperature 55 DEG C, residual sulphur 6mg/100g.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 0.4g/L, processing time 60min, temperature 60 C.
The operation that oils of described post processing, the concentration of finish is 1.0g/L, processing time 60min, temperature 50 C.
The fiber number of obtained viscose monofilament is 1000D, and brute force reaches 83CN, and dry fracture strength is 1.5CN/dtex, and wet breaking strength is 1.2CN/dtex, and dry elongation at break is 15%.
Embodiment 12
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 0.6g/L, processing time 50min, temperature 57 DEG C, residual sulphur 7mg/100g.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 0.5g/L, processing time 40min, temperature 52 DEG C.
The operation that oils of described post processing, the concentration of finish is 5.0g/L, processing time 20min, temperature 40 DEG C.
Described spinning solution is containing first fibre 6%, and containing alkali 5g/L, viscosity is 40s(falling ball viscosity), degree of ripeness is 4ml.
The fiber number of obtained viscose monofilament is 800D, and brute force reaches 81CN, and dry fracture strength is 2.0CN/dtex, and wet breaking strength is 1.5CN/dtex, and dry elongation at break is 20%.
Embodiment 13
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 0.5g/L, processing time 30min, temperature 58 DEG C, residual sulphur 7mg/100g.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 0.8g/L, processing time 50min, temperature 55 DEG C.
The operation that oils of described post processing, the concentration of finish is 3.0g/L, processing time 40min, temperature 45 C.
Described spinning solution is containing first fibre 10%, and containing alkali 7g/L, viscosity is 70s(falling ball viscosity), degree of ripeness is 8 ml.
The fiber number of obtained viscose monofilament is 450D, and brute force reaches 76CN, and dry fracture strength is 1.7CN/dtex, and wet breaking strength is 1.6CN/dtex, and dry elongation at break is 18%.
Embodiment 14
Substantially the same manner as Example 3, on this basis:
The desulfurization process of described post processing, the concentration of NaOH is 0.6g/L, processing time 35min, temperature 56 DEG C, residual sulphur 4mg/100g.
The bleaching process of described post processing, the concentration of hydrogen peroxide is 0.9g/L, processing time 55min, temperature 56 DEG C.
The operation that oils of described post processing, the concentration of finish is 4.0g/L, processing time 45min, temperature 48 DEG C.
Described spinning solution is containing first fibre 8%, and containing alkali 6g/L, viscosity is 60s(falling ball viscosity), degree of ripeness is 6 ml.
The fiber number of obtained viscose monofilament is 560D, and brute force reaches 82CN, and dry fracture strength is 1.8CN/dtex, and wet breaking strength is 1.4CN/dtex, and dry elongation at break is 16%.
Claims (6)
1. a production technology for viscose monofilament, is characterized in that: take cellulose fiber pulp as raw material, obtain viscose glue individual thread through spinning solution preparation-spinning-post processing, specifically comprise following processing step:
Prepared by A spinning solution
Cellulose fiber pulp obtains spinning solution through dipping, experienced, yellow, dissolving, deaeration and filtration;
Spinning solution contains first fibre 6 ~ 10%, containing alkali 5 ~ 7g/L, and viscosity 40 ~ 70s, degree of ripeness 4 ~ 8 mL;
B spinning
Spinning solution sends spinning machine to by for sebific duct road, is quantitatively sent into by measuring pump, and spinning solution is through single hole shower nozzle, and under stress by spinneret orifice, form viscose glue thread, viscose glue thread enters coagulating bath, forms raw silk bar after coagulation forming;
Described jet stretch+60% ~+80%;
The inlet channels shape of described spinneret orifice parabolically;
The speed of spinning of described spinning machine is 30 ~ 80m/min;
The spinneret orifice of described shower nozzle is circular, and inlet channels length with the diameter ratio of spinneret orifice is: 1.0 ~ 1.5:1;
C post processing
By raw silk bar through desulfurization, bleach, oil, dry after obtain viscose monofilament;
The fiber number of viscose monofilament is 50 ~ 6000D, and brute force reaches more than 75cN, and dry fracture strength is 1.5 ~ 2.0cN/dtex, and wet breaking strength is 1.0 ~ 1.5cN/dtex, and dry elongation at break is 15 ~ 20%.
2. the production technology of a kind of viscose monofilament according to claim 1, is characterized in that: in described spinning process, consisting of of coagulating bath: sulfuric acid 100 ~ 140g/L, sodium sulphate 200 ~ 250g/L, zinc sulfate 20 ~ 30g/L; The temperature of coagulating bath is 40 ~ 55 DEG C.
3. the production technology of a kind of viscose monofilament according to claim 1, is characterized in that: the desulfurization process of described post processing:
Naoh concentration 0.4 ~ 1.0g/L,
Processing time 20 ~ 60min,
Temperature 50 ~ 60 DEG C,
Within residual sulphur 8mg/100g.
4. the production technology of a kind of viscose monofilament according to claim 1, is characterized in that: the bleaching process of described post processing:
Concentration 0.4 ~ the 1.0g/L of hydrogen peroxide,
Processing time 20 ~ 60min,
Temperature 50 ~ 60 DEG C.
5. the production technology of a kind of viscose monofilament according to claim 1, is characterized in that: the operation that oils of described post processing:
Concentration 1.0 ~ the 5.0g/L of finish,
Processing time 20 ~ 60min,
Temperature 40 ~ 50 DEG C.
6. the production technology of a kind of viscose monofilament according to claim 1, is characterized in that: described cellulose pulp comprises Cotton Pulp, wood pulps, bamboo pulp.
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