CN109295519A - A kind of Chinese jute viscose and preparation method thereof - Google Patents
A kind of Chinese jute viscose and preparation method thereof Download PDFInfo
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- CN109295519A CN109295519A CN201811122961.4A CN201811122961A CN109295519A CN 109295519 A CN109295519 A CN 109295519A CN 201811122961 A CN201811122961 A CN 201811122961A CN 109295519 A CN109295519 A CN 109295519A
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- jute viscose
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- 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
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Abstract
The present invention provides a kind of preparation methods of Chinese jute viscose, which comprises the following steps: 1) prepares raw material: by the root bast fiber of Chinese fiber crops and taper bast fiber uniform cut, raw material is made；2) it prepares Chinese hemp dissolving pulp: raw material described in step 1) being subjected to boiling, mashing, pulp washing, papermaking, Chinese hemp dissolving pulp is made；3) it prepares Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, being impregnated, is experienced, sulfonation, dissolution, maturation, spinning, drawing-off, refining, drying, obtain Chinese jute viscose.The preparation method of Chinese jute viscose provided by the invention, the characteristics of for Chinese fiber crops ingredient, on the basis of the production technology of traditional viscose rayon, corresponding improvement has been done to the auxiliary agent and concrete technology, so as to be suitable for the production of Chinese jute viscose, guarantee the production effect and stable product quality of Chinese jute viscose.
Description
Technical field
The invention belongs to textile technology fields, and in particular to a kind of Chinese jute viscose and preparation method thereof.
Background technique
Chinese fiber crops (Hemp), refer to tetrahydrocannabinol (THC) the content < by artificially breeding, plant top vane and flower spike
0.3% (dry matter percentage) does not have and extracts drugs and the Hemp Varieties type directly as drugs utility value.Chinese fiber crops
The requirement of fibrous type industrial hemp is reached, has been the nontoxic kind that state ministry of public security is put on record, large-scale planting and industry can be carried out
Change and utilizes.Chinese fiber crops are a kind of natural function fibre resources of preciousness, and any chemical fertilizer and agriculture are not necessarily in plantation and growth course
Medicine is the generally acknowledged ecological, environmental protective characteristic resources in the whole world.Chinese fiber crops whole body is all treasured, and especially it is with antipathogenic composition abundant, day
Right antibacterial bacteriostatic performance makes it become ideal fibrous raw material.
Existing china-hemp fibers are the progress degumming of Chinese fiber crops bast fiber to be reeled off raw silk from cocoons to wait the fiber of manufacturing process, but it is utilized
Rate is lower.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of Chinese jute viscoses and preparation method thereof.
To achieve the goals above, the technical solution used in the present invention is: a kind of preparation method of Chinese jute viscose,
The following steps are included:
1) prepare raw material: by the root bast fiber of Chinese fiber crops and taper bast fiber uniform cut, raw material is made；
2) it prepares Chinese hemp dissolving pulp: raw material described in step 1) being subjected to boiling, mashing, pulp washing, papermaking, Chinese jute pulp is made
The dregs of rice；
3) prepare Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, impregnated, be experienced, sulfonation, dissolution, maturation,
Spinning, drawing-off, refining, drying obtain Chinese jute viscose.
Based on the above technical solution, the present invention can also have following further specific choice or optimum choice.
Specifically, in step 2), when the boiling in addition to conventional digesting assistant is added (such as 4-12 part of anthraquinone, company two
Sub- commonplace 8-18 part of b acid sodium, alkyl stone sodium sulfonate 18-28 4 divide, 18-28 parts of sodium of stone friend's acid, anhydrous sodium sulfate or/and anhydrous sulfurous
Sour sodium 28-38), it is additionally added NaHS, the additional amount of the NaHS is the 1-2% of the mass fraction of corresponding raw material.
The control of adition process attention amount and at the uniform velocity guarantees the cooking and heat-preservation time, boils light drift again, guarantee the separation of cellulose.It is being beaten
Process should not be too heavy, such as cellulose good separating effect, can not have to mashing.
Specifically, in step 2), when papermaking, carries out secondary filter and recycles small fiber (the reuse consideration of small fiber is copied
Starch the filter value of woollen blanket and the secondary recovery filtering of papermaking discharge water).
Specifically, in step 3), when the dipping, concentration is used to be soaked for the sodium hydrate aqueous solution of 240g/l
Stain, 50-60 DEG C of temperature.The loss of small fiber is paid attention in expressing process, this is that cost control point and quality control are crucial (small
On the one hand the control of fiber by pressure roller or squeezes the eye diameter of mesh belt to control, while filtering out to recycling in lye
Small fibrous root according to practical condition do whether reuse judgement).
Specifically, the sulfonation uses dry method sulfonation, wherein CS is added in step 3)2Amount be the Chinese hemp dissolving pulp
Mass fraction 36-40%.CS2Additional amount additive amount is had nothing in common with each other according to the actual situation, and general cellulose control is in quality
Score 33% or so, Chinese hemp dissolving pulp can control 36% or more mass fraction, to guarantee the effect of cellulose sulfonate.It can also
To use wet sulphidization, wherein lye is usually first added in wet sulphidization technique, then adds CS2, reaction homogeneity is good, and one
As used in viscose filament yarn, staple fiber sulfonation machine does not use.
Specifically, in step 3), when the maturation, temperature control is at 20 DEG C hereinafter, to guarantee the ripe of spinning solution
Cheng Du.
Specifically, in step 3), when the spinning, spinning speed 50-55m/min.China-hemp fibers are usually to have
Hollow, rectangular configuration, hollow structure guarantees that the quick of its moisture scatters and disappears, keeps feeling nice and cool and good biocidal property, and rectangular configuration
Keep the feel of fiber clear, appropriate spinning speed slows down, and for general spinning speed in 60m/min, adjustable is 50-55m/min,
It is determined according to spinning quality situation, spinning moulding will mitigate.
Specifically, in step 3), when the refining, china-hemp fibers residual sulfur content is 15-20mg/100g, whiteness 72-
76%, to guarantee collocation when Chinese jute viscose and Chinese fiber crops homogeneity are spun.
Specifically, drying course control resurgence is higher in step 3), generally sent by the loosening degree of fiber, drying
The measures such as air quantity, drying temperature avoid the subsequent brittleness of fiber excessive.
In addition, the present invention also provides the Chinese jute viscoses produced according to the preparation method of above-mentioned Chinese jute viscose.
The Chinese jute viscose is that the regenerated celulose fibre that produces using natural green ecology Chinese hemp plant bar stem as raw material spinneret is new
Material has the excellent properties of soft comfortable, moisture absorption pro-skin, natural antibacterial.
Compared with prior art, the beneficial effects of the present invention are: the preparation method of Chinese jute viscose provided by the invention,
The characteristics of for Chinese fiber crops ingredient, on the basis of the production technology of traditional viscose rayon, the auxiliary agent and concrete technology are done
It is corresponding to improve, so as to be suitable for the production of Chinese jute viscose, guarantee the production effect and product matter of Chinese jute viscose
Amount is stablized.
Specific embodiment
For a better understanding of the present invention, the content that the present invention is furture elucidated combined with specific embodiments below, but this hair
Bright content is not limited solely to the following examples.
The present invention provides a kind of preparation methods of Chinese jute viscose, comprising the following steps:
1) prepare raw material: by the root bast fiber of Chinese fiber crops and taper bast fiber uniform cut, raw material is made；
2) it prepares Chinese hemp dissolving pulp: raw material described in step 1) being subjected to boiling, mashing, pulp washing, papermaking, Chinese jute pulp is made
The dregs of rice；
3) prepare Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, impregnated, be experienced, sulfonation, dissolution, maturation,
Spinning, drawing-off, refining, drying obtain Chinese jute viscose.
Specifically, in step 2), when the boiling in addition to conventional digesting assistant is added (such as 4-12 part of anthraquinone, company two
Sub- commonplace 8-18 part of b acid sodium, alkyl stone sodium sulfonate 18-28 4 divide, 18-28 parts of sodium of stone friend's acid, anhydrous sodium sulfate or/and anhydrous sulfurous
Sour sodium 28-38), it is additionally added NaHS, the additional amount of the NaHS corresponds to the 1-2% of the mass fraction of raw material.It is added
The control of process attention amount and at the uniform velocity guarantees the cooking and heat-preservation time, boils light drift again, guarantee the separation of cellulose.
Specifically, in step 2), small fiber is recycled using secondary filter when the papermaking.
Specifically, in step 3), when the dipping, concentration is used to be carried out for the sodium hydrate aqueous solution of 240g/l
Dipping, 50-60 DEG C of temperature.
Specifically, the sulfonation uses dry method sulfonation, wherein CS is added in step 3)2Amount be the Chinese hemp dissolving pulp
Mass fraction 36-40%.CS2Additional amount additive amount is had nothing in common with each other according to the actual situation, and general cellulose control is in quality
Score 33% or so, Chinese hemp dissolving pulp can control 36% or more mass fraction, to guarantee the effect of cellulose sulfonate.
Specifically, in step 3), when the maturation, temperature control is at 20 DEG C hereinafter, to guarantee the ripe of spinning solution
Cheng Du.
Specifically, in step 3), when the spinning, spinning speed 50-55m/min.China-hemp fibers are usually to have
Hollow, rectangular configuration, hollow structure guarantees that the quick of its moisture scatters and disappears, keeps feeling nice and cool and good biocidal property, and rectangular configuration
Keep the feel of fiber clear, appropriate spinning speed slows down, and for general spinning speed in 60m/min, adjustable is 50-55m/min,
It is determined according to spinning quality situation, spinning moulding will mitigate.
Specifically, in step 3), when the refining, china-hemp fibers residual sulfur content is 15-20mg/100g, whiteness 72-
76%.
Specifically, drying course control resurgence is higher in step 3), generally sent by the loosening degree of fiber, drying
The measures such as air quantity, drying temperature avoid the subsequent brittleness of fiber excessive.
Embodiment 1:
Prepare raw material: high-quality Chinese fiber crops are subjected to pre-treatment, the root bast fiber of Chinese fiber crops and taper bast fiber is uniform
Cutting, is made raw material；
It prepares Chinese hemp dissolving pulp: raw material described in step 1) is subjected to boiling, mashing, pulp washing, papermaking；Wherein, boiling is carried out
When conventional digesting assistant (purchased from commercially available) is added, in addition, being additionally added NaHS, the additional amount of the NaHS is corresponding former
The 1% of the mass fraction of material.Small fiber is recycled using secondary filter when papermaking.
It prepares Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, being impregnated, is experienced, sulfonation, dissolution, maturation, spinning
Silk, drawing-off, refining, drying obtain Chinese jute viscose.Wherein, when being impregnated, use sodium hydrate aqueous solution concentration for
240g/l, temperature 50 C.The sulfonation uses dry method sulfonation, wherein CS is added2The mass fraction for accounting for the Chinese hemp dissolving pulp is
40%.When the maturation, at 18 DEG C or so, degree of ripeness is moderately adjusted according to spinning situation for temperature control.When the refining, Chinese fiber crops
Fiber residual sulfur content is 15-20mg/100g, whiteness 72-76%, to guarantee to take when Chinese jute viscose is spun with Chinese fiber crops homogeneity
Match.Drying course control resurgence is higher, generally by measures such as the loosening degree of fiber, drying air output, drying temperatures, avoids
The subsequent brittleness of fiber is excessive.
Embodiment 2:
Prepare raw material: high-quality Chinese fiber crops being subjected to pre-treatment, by the root bast fiber and taper bast fiber, crop end of Chinese fiber crops
Raw material is made in uniform cut；
It prepares Chinese hemp dissolving pulp: raw material described in step 1) is subjected to boiling, mashing, pulp washing, papermaking；Wherein, boiling is carried out
When be added conventional digesting assistant (such as 4-12 part of anthraquinone, even commonplace 8-18 parts of the b acid sodium in two Asias, alkyl stone sodium sulfonate 18-28 4 divide,
Sour 18-28 parts of the sodium of stone friend, anhydrous sodium sulfate or/and anhydrous sodium sulfite 28-38), in addition, it is additionally added NaHS, the sulphur
The additional amount of sodium hydride is the 2% of the mass fraction of corresponding raw material.Small fiber is recycled using secondary filter when papermaking.
It prepares Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, being impregnated, is experienced, sulfonation, dissolution, maturation, spinning
Silk, drawing-off, refining, drying obtain Chinese jute viscose.Wherein, when being impregnated, use sodium hydrate aqueous solution concentration for
240g/l, temperature 60 C.The sulfonation uses dry method sulfonation, wherein CS is added2The mass fraction for accounting for the Chinese hemp dissolving pulp is
40%.When the maturation, at 18 DEG C or so, degree of ripeness is moderately adjusted according to spinning situation for temperature control.When the refining, Chinese fiber crops
Fiber residual sulfur content is 15-20mg/100g, whiteness 72-76%, to guarantee to take when Chinese jute viscose is spun with Chinese fiber crops homogeneity
Match.Drying course control resurgence is higher, generally by measures such as the loosening degree of fiber, drying air output, drying temperatures, avoids
The subsequent brittleness of fiber is excessive.
Embodiment 3:
Prepare raw material: high-quality Chinese fiber crops are subjected to pre-treatment, the root bast fiber of Chinese fiber crops and taper bast fiber is uniform
Cutting, is made raw material；
It prepares Chinese hemp dissolving pulp: raw material described in step 1) is subjected to boiling, mashing, pulp washing, papermaking；Wherein, boiling is carried out
When conventional digesting assistant (purchased from commercially available) is added, in addition, being additionally added NaHS, the additional amount of the NaHS is corresponding former
The 2% of the mass fraction of material.Small fiber is recycled using secondary filter when papermaking.
It prepares Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, being impregnated, is experienced, sulfonation, dissolution, maturation, spinning
Silk, drawing-off, refining, drying obtain Chinese jute viscose.Wherein, when being impregnated, use sodium hydrate aqueous solution concentration for
240g/l, temperature 50 C.The sulfonation uses wet sulphidization, and lye is usually first added in this method wet sulphidization technique, then
CS2 is added, reaction homogeneity is good, wherein CS is added2The mass fraction for accounting for the Chinese hemp dissolving pulp is 36%.When the maturation,
At 20 DEG C or less, degree of ripeness is moderately adjusted according to spinning situation for temperature control.When the refining, china-hemp fibers residual sulfur content is
15-20mg/100g, whiteness 72-76%, to guarantee collocation when Chinese jute viscose and Chinese fiber crops homogeneity are spun.Drying course control
System resurgence is higher, generally by measures such as the loosening degree of fiber, drying air output, drying temperatures, avoids fiber subsequent crisp
Property is excessive.
According to the Chinese jute viscose soft comfortable of the production of embodiment 1, moisture absorption pro-skin, natural antibacterial, antibacterial test knot
Fruit is as follows:
Sample ID: Chinese jute viscose (white fiber)
Detect unit: national textile fabrics Quality Supervision and Inspection Center
Test basis: GB/T 20944.3-2008 antibacterial textile performance evaluation third portion: concussion method testing result is such as
Shown in table:
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of Chinese jute viscose, which comprises the following steps:
1) prepare raw material: by the root bast fiber of Chinese fiber crops and taper bast fiber uniform cut, raw material is made；
2) it prepares Chinese hemp dissolving pulp: raw material described in step 1) being subjected to boiling, mashing, pulp washing, papermaking, Chinese hemp dissolving pulp is made；
3) it prepares Chinese jute viscose: by the step 2) Chinese hemp dissolving pulp, being impregnated, is experienced, sulfonation, dissolution, maturation, spinning
Silk, drawing-off, refining, drying obtain Chinese jute viscose.
2. a kind of preparation method of Chinese jute viscose according to claim 1, it is characterised in that: in step 2), institute
NaHS is added when stating boiling, the additional amount of the NaHS is the 1-2% of the mass fraction of corresponding raw material.
3. a kind of preparation method of Chinese jute viscose according to claim 1, it is characterised in that: in step 2), institute
Secondary filter, which is carried out, when stating papermaking recycles small fiber.
4. a kind of preparation method of Chinese jute viscose according to claim 1, it is characterised in that: in step 3), institute
When stating dipping, concentration is used to be impregnated for the sodium hydrate aqueous solution of 240g/l, 50-60 DEG C of temperature.
5. a kind of preparation method of Chinese jute viscose according to claim 1, it is characterised in that: in step 3), institute
Sulfonation is stated using dry method sulfonation, wherein CS is added2Amount be the Chinese hemp dissolving pulp mass fraction 36-40%.
6. a kind of preparation method of Chinese jute viscose according to claim 1-5, it is characterised in that: in step
3) in, when the maturation, temperature is controlled at 20 DEG C or less.
7. a kind of preparation method of Chinese jute viscose according to claim 1-5, it is characterised in that: in step
3) in, when the spinning, spinning speed 50-55m/min.
8. a kind of preparation method of Chinese jute viscose according to claim 1-5, it is characterised in that: in step
3) in, when the refining, china-hemp fibers residual sulfur content is 15-20mg/100g, whiteness 72-76%.
9. a kind of a kind of Chinese fiber crops viscose glue of the preparation method production of Chinese jute viscose as claimed in any one of claims 1 to 8
Fiber.
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Cited By (2)
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| CN110528102A (en) * | 2019-08-09 | 2019-12-03 | 青岛大学 | A kind of cellulose viscose manufacturing technique based on hemp dissolving pulp |
| CN116200837A (en) * | 2023-03-11 | 2023-06-02 | 山东银鹰化纤有限公司 | China hemp fiber for regenerated seeds and preparation method thereof |
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