CN109972232A - A kind of production technology of light storage towel - Google Patents
A kind of production technology of light storage towel Download PDFInfo
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- CN109972232A CN109972232A CN201910234066.XA CN201910234066A CN109972232A CN 109972232 A CN109972232 A CN 109972232A CN 201910234066 A CN201910234066 A CN 201910234066A CN 109972232 A CN109972232 A CN 109972232A
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- Prior art keywords
- light storage
- polyester fiber
- production technology
- storage powder
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/02—Towels
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
Abstract
The present invention relates to a kind of production technologies of light storage towel, including spinning and weaving, the tool processing step of the spinning process is as follows: it is that 1:0.5~1:2 is added in ball mill and carries out ball milling that step 1 is by ethylene glycol and light storage powder in mass ratio, obtains light storage powder slurry；Step 2 is that the monomer and ethylene glycol that will prepare polyethylene terephthalate according to molar ratio are that 1:1~1:1.5 is added in polymerization reaction kettle and polymerize；Step 3 is that esterification reaction product made from step 2 is pressed onto polycondensation vessel using pressure, adds light storage powder slurry and carries out polycondensation；It according to mass ratio is that 3:1~1:1 is delivered in composite spinning machine that step 4, which is by light storage polyester fiber obtained in step 3 and polyester fiber,；Step 5 is that composite fibre made from step 4 is successively carried out to thermal finalization, is oiled, the processing of rolling step.The present invention has the effect of persistently keeping light-accumulated luminous.
Description
Technical field
The present invention relates to the technical fields of functional towel, more particularly, to a kind of production technology of light storage towel.
Background technique
With the continuous improvement of human material and cultural life level, people require also constantly to mention to the functionalization of textile
Height, wherein luminescent fabric occurs gradually in the public visual field, and luminescent material includes self-luminescent material and light-storing material.Self-luminous
Material do not need to absorb luminous energy can continuous illumination, main component is radioactive substance, by larger limitation when use.It stores
Luminescent material, which refers to, can be absorbed luminous energy by the irradiation of sunlight or other light sources, and light source remove after continuous illumination in the dark
Tens of hours materials are able to carry out absorption light-light storage-and shine and can infinitely repeat this process.Light storage fabric was suitble at night
Between use, can be used for making the textile products such as clothes, towel, using in large-scale concert, atmosphere can be set off, enhancing is drilled
Sing the entertainment effect etc. of meeting.
Publication No. is that the Chinese patent of CN105459471A discloses a kind of luminous reflecting light storage fabric, successively by base, viscous
Glue-line, luminescent coating, transparent protective layer composition, base are water repellent polyester fabric, and adhesive-layer is moisture-inhibiting then glue-line, in adhesive-layer
Reflecting beads are evenly distributed with, luminescent coating is the mixed coating of solid light-accumulating powder and polyurethane resin.
Prior art among the above has the following deficiencies: that luminescent coating is coated directly on fabric, and fabric is light-accumulated luminous
Effect it is poor, although being provided with transparent protective layer outside luminescent coating, easily lead to that fabric hand feel is hard and coating preparation shine
The fastness of luminescent coating is poor in reflecting light storage smooth surface material, transparent protective layer is easily washed off after washing repeatedly, so that light-accumulated luminous effect
It is substantially reduced, is also shortened therewith using duration.
Summary of the invention
The object of the present invention is to provide a kind of production technologies of light storage towel, and light-accumulated luminous effect can persistently be kept by having
Fruit.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of production work of light storage towel
Skill, including spin and weave, the spinning process the specific process steps are as follows: step 1 is preparation light storage powder slurry: by second
Two pure and mild light-accumulating powder bodies are that 1:0.5~1:2 is added in ball mill and carries out ball milling in mass ratio, to ball mill during ball milling
The middle dispersing agent that mass fraction is added and is 1~5%, 1~5h of ball milling, the liquid phase suspension liquid for obtaining light storage powder is light storage powder
Slurry；Step 2 is the preparation of polyethylene terephthalate: will prepare the monomer and second two of polyethylene terephthalate
Alcohol is that 1:1~1:1.5 is added in polymerization reaction kettle according to mass ratio, adds the transesterification that mass fraction is 1~3% and is catalyzed
Agent is in polymerization reaction kettle, heating stirring, and reaction temperature control is at 200~230 DEG C, and pressure control is in 0.2~0.4MPa, fractionation
Column top temperature is controlled at 135~140 DEG C, and ester exchange rate starts pressure release when reaching 95%；Step 3 is the preparation of light storage polyester fiber:
Esterification reaction product polyethylene terephthalate made from step 2 is pressed onto polycondensation vessel using pressure, is at this time normal pressure, adds
Enter light storage powder slurry made from stabilizer and step 1 to be stirred, the control of vacuum polycondensation phase temperature 280~
290 DEG C, 2-5h is stirred, the inflated with nitrogen into polycondensation vessel stops vacuum, Cast Strip pelletizing cooling with cold rinse bank；Step 4 is compound fibre
The preparation of dimension: light storage polyester fiber obtained in step 3 slice is placed into pre-crystallized in baking oven, is then dried in vacuo, polyester
Fibre section be put into it is pre-crystallized in baking oven, it is by two screw rods and two metering pumps, light storage polyester is fine using vacuum drying
Peacekeeping polyester fiber is that 3:1~1:1 is delivered in composite spinning machine, then passes through spinneret extrusion molding according to mass ratio；Step 5
For composite fibre made from step 4 successively to be carried out to thermal finalization, is oiled, the processing of rolling step.
By using above-mentioned technical proposal, first light storage powder is dispersed in ethylene glycol, then by light storage powder obtained
Slurry is added during the monomer polymerization of ethylene glycol and polyethylene terephthalate, and participates in all stage of polymerization.
The light storage powder being added in polymerization process will not influence polymerization, and prepared light storage polyester fiber slice has good spin
Property.Stabilizer is added in polycondensation process, the thermal stability of polyester fiber on the one hand can be improved, on the other hand can inhibit polycondensation
Degradation reaction in the process, can anti-oxidant but also resistant to hydrolysis.Light storage powder is dispersed in ethylene glycol, and the dispersing agent of addition makes
Light storage powder disperses uniform in ethylene glycol, and light storage powder is avoided to reunite in ethylene glycol, influences the system of light storage polyester fiber
It is standby.By light storage polyester fiber and polyester fiber according to different ratios, stable composite fibre is prepared by composite spinning machine,
The ratio for reducing polyester fiber, is the brightness in order to not influence light storage fiber and persistence.After composite fibre prepares, pass through
Thermal finalization, it is therefore an objective to eliminate fiber internal stress, improve the dimensional stability of fiber；It oils again, fiber is rear in order to prevent
Process friction generates electrostatic, and winding can assign fibrous elasticity.The present invention by being added light storage powder in the course of the polymerization process
Light storage polyester fiber is made, then light storage polyester fiber and polyester fiber blend spinning, light storage towel, light storage powder is finally made
It is dissolved into composite fibre, rather than therefore light-accumulated luminous function can persistently be kept by being coated in surface.
The further setting of the present invention are as follows: the monomer of the polyethylene terephthalate is for terephthalic acid (TPA) or to benzene
Dicarboxylic acid dimethyl ester.
By using above-mentioned technical proposal, terephthalic acid (TPA) and ethylene glycol polycondensation can prepare poly terephthalic acid second two
Alcohol ester；Dimethyl terephthalate (DMT) and ethylene glycol first carry out ester exchange reaction, then carry out polycondensation reaction again and are made poly- to benzene two
Formic acid glycol ester.
The further setting of the present invention are as follows: the dispersing agent in the step 1 is that fatty alcohol polyoxyethylene ether and modification are wooden
The compound of plain sodium sulfonate.
By using above-mentioned technical proposal, the compound of fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate belongs to yin
The dispersing agent of ion and nonionic surfactant compounding, anion active agent and the interaction of light storage powder, ion inactive
Agent is stablized in water phase, and the two combines, reduce liquid it is solid between surface tension so that dispersion effect of the light storage powder in ethylene glycol
Fruit is good.
The further setting of the present invention are as follows: the ester exchange catalyst in the step 2 includes at least antimony glycol, three oxidations
One of antimony, antimony acetate and cadmium acetate.
By using above-mentioned technical proposal, on the one hand ester exchange catalyst, which is added, can make the more thorough of ester exchange reaction progress
On the other hand the rate of transesterification can be improved in bottom.Under the conditions of polycondensation reaction, the hydrogen that intramolecular hydrogen bond is formed in complex compound is former
Son is by after the metal ion displacement of catalyst, and metal ion provides unoccupied orbital and the lone pair electrons of ketonic oxygen are coordinated, so as to
Increase the electropositive of carbonyl carbon, the hydroxyl oxygen on another hydroxyl ethyl ester base carries out attack to the carbonyl carbon in complex compound, carries out carbon
Base addition is eliminated, and polycondensation reaction is completed.The electronegativity of metal is big in catalyst, the network for the ketonic oxygen that metal and phenyl ring are connected directly
Conjunction ability is strong, is conducive to the raising of catalytic activity, antimony, cadmium compound meet the requirements.In addition antimony glycol is in ethylene glycol
Solubility is big, and will not introduce impurity, and catalytic activity is high.
The further setting of the present invention are as follows: the stabilizer in step 3 can be triphenyl phosphate, trimethyl phosphate or hydrogen-oxygen
Change any one in triethylammonium tetrakis.
By using above-mentioned technical proposal, triphenyl phosphate and trimethyl phosphate have oxidation resistance, can capture poly-
The hydrogen chloride that ester fiber degradation generates, addition polyene improve the thermal stability of polyester fiber, on the other hand because of phosphoric acid triphen
Contain phosphorus in ester and trimethyl phosphate, so as to improve the combustibility of polyester fiber.Tetraethylamine hydroxide is able to suppress poly-
Ester fiber degradation, to improve the thermal stability of polyester fiber.
The further setting of the present invention are as follows: pre-crystallization temperature is 130~150 DEG C in the step 4, and the time is 4~6h.
By using above-mentioned technical proposal, pre-crystallized purpose is the moisture removed in slice, improves the soft of polyester fiber
Change point, avoids softening point is low spinning process is caused to block composite spinning machine.Polyester fiber alignment state crystallization temperature is 125 DEG C, in advance
Crystallization temperature is lower than 130 DEG C, and rate of drying is slow, and drying time is long, and when being higher than 150 DEG C, polyester fiber is also easy to produce bonding.
The further setting of the present invention are as follows: in the step 4 vacuum drying temperature be 140~180 DEG C, the time be 18~
30h。
By using above-mentioned technical proposal, the moisture in slice is further removed, avoids light storage polyester fiber and polyester fine
Dimension hydrolyzes during the spinning process, and molecular weight is caused to reduce.
The further setting of the present invention are as follows: spinning speed is 1500~2500m/min in the step 4.
By using above-mentioned technical proposal, have the effect of high speed, serialization.
In conclusion the present invention has following advantageous effects: by the way that light storage powder to be dispersed in ethylene glycol, then
Light storage powder slurry is added in polyethylene terephthalate polymerization process, so that light storage polyester fiber be made.Pass through storage
Light polyester fiber and polyester fiber blend spinning, prepare the composite fibre with light storage function, using composite fibre by knitting
Make and etc. be processed into light storage towel.The light storage towel produced by the production technology of the light storage towel, light storage powder and fibre
Fastness between dimension is strong, and stability is good, washing will not the light storage function to towel impact so that light storage towel has
The effect of continuous illumination.
Specific embodiment
Embodiment 1, a kind of production technology of light storage towel, including spin and weave, the specific process step of spinning process
It is as follows:
Step 1 be preparation light storage powder slurry: by ethylene glycol and light storage powder be in mass ratio 1:0.5 be added in ball mill into
The compound of fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate is added during ball milling into ball mill for row ball milling,
The compound of fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate accounts for the 3% of light storage powder slurry gross mass, and ball milling 2h is obtained
Liquid phase suspension liquid to light storage powder is light storage powder slurry；
Step 2 is the preparation of polyethylene terephthalate: according to molar ratio being that 1:1 is added by terephthalic acid (TPA) and ethylene glycol
Into polymerization reaction kettle, antimony acetate is added in polymerization reaction kettle, and antimony acetate accounts for 2% of material gross mass in polymerization reaction kettle；
Heating stirring, reaction temperature control is at 230 DEG C, and pressure control is fractionated column top temperature control at 135 DEG C in 0.2MPa, transesterification
Rate starts pressure release when reaching 95%；
Step 3 is the preparation of light storage polyester fiber: by the benefit of esterification reaction product polyethylene terephthalate made from step 2
It is pressed onto polycondensation vessel with pressure, is at this time normal pressure, light storage powder slurry made from triphenyl phosphate and step 1 is added and is stirred
It mixes, the vacuum polycondensation stage, temperature is controlled at 280 DEG C, stirs 3h, and the inflated with nitrogen into polycondensation vessel stops vacuum, uses cold rinse bank
It is cooling, Cast Strip pelletizing；
Step 4 is the preparation of composite fibre: light storage polyester fiber slice obtained in polyester fiber slice and step 3 is placed into
Pre-crystallized in baking oven, pre-crystallization temperature is 150 DEG C, then time 4h is dried in vacuo, and vacuum drying temperature is 140 DEG C, when
Between be 30h.It according to mass ratio is that 2:1 is conveyed by light storage polyester fiber and polyester fiber by two screw rods and two metering pumps
Into composite spinning machine, then through spinneret extrusion molding, with 2500m/min speed spinning；
Step 5 is that composite fibre made from step 4 is successively carried out to thermal finalization, is oiled, the processing of rolling step.
Weaving: composite fibre, which is put into towel textile machinery, is made into towel fabric, then to towel fabric carry out bleaching or
Dyeing, then the towel fabric to connect together is divided into single towel base, it lockstitches a border to the surrounding of towel base, can so give birth to
Output light storage towel.
Embodiment 2, difference from example 1 is that, ethylene glycol and light storage powder are 1 according to mass ratio in step 1:
1 is added in ball mill and carries out ball milling, be added during ball milling into ball mill fatty alcohol polyoxyethylene ether be modified it is wooden
The compound of the compound of plain sodium sulfonate, fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate accounts for the total matter of light storage powder slurry
2%, ball milling 3h of amount, the liquid phase suspension liquid for obtaining light storage powder is light storage powder slurry.Terephthalic acid (TPA) diformazan in step 2
Ester and ethylene glycol are added in polymerization reaction kettle according to molar ratio for 1:1.2, add antimony glycol in polymerization reaction kettle, second
Glycol antimony accounts for 2% of material gross mass in polymerization reaction kettle, and heating stirring, at 220 DEG C, pressure is controlled 0.4 for reaction temperature control
Mpa, fractionation column top temperature control is at 140 DEG C.In step 3, trimethyl phosphate, vacuum polycondensation rank are added into polycondensation vessel
Section, temperature are controlled at 290 DEG C, stir 4h.Pre-crystallization temperature is 140 DEG C, time 5h in step 4, and vacuum drying temperature is
160 DEG C, the time is spinning speed 2000m/min for 24 hours.
Embodiment 3, difference from example 1 is that, ethylene glycol and light storage powder are 1 according to mass ratio in step 1:
2 are added in ball mill and carry out ball milling, be added during ball milling into ball mill fatty alcohol polyoxyethylene ether be modified it is wooden
The compound of the compound of plain sodium sulfonate, fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate accounts for the total matter of light storage powder slurry
4%, ball milling 4h of amount, the liquid phase suspension liquid for obtaining light storage powder is light storage powder slurry.Terephthalic acid (TPA) and second in step 2
Glycol is that 1:1.5 is added in polymerization reaction kettle according to molar ratio, adds antimony trioxide in polymerization reaction kettle, antimony trioxide
2% of material gross mass in polymerization reaction kettle is accounted for, heating stirring, at 200 DEG C, pressure is controlled in 0.4 Mpa for reaction temperature control,
Column top temperature control is fractionated at 140 DEG C.In step 3, tetraethylamine hydroxide is added into batch condensation polymerization reactor, vacuum vacuum polycondensation is anti-
It answers the stage, temperature is controlled at 290 DEG C, stirs 2h.Pre-crystallization temperature is 130 DEG C, time 6h in step 4, vacuum drying temperature
Degree is 160 DEG C, and the time is spinning speed 2000m/min for 24 hours.Polycondensation reaction stage, temperature are controlled at 285 DEG C, stir 4h.
Pre-crystallization temperature is 130 DEG C, time 6h in step 4, and vacuum drying temperature is 140 DEG C, time 18h, and spinning speed is
1500m/min。
With embodiment 2 the difference is that, fat is added in embodiment 4 into ball mill during ball milling in step 1
The compound of alcohol polyoxyethylene ether and modified sodium lignosulfonate, fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate are answered
5%, the ball milling 2h that light storage powder slurry gross mass is accounted for object, the liquid phase suspension liquid for obtaining light storage powder is light storage powder slurry.
Dimethyl terephthalate (DMT) and ethylene glycol are added in polymerization reaction kettle according to molar ratio for 1:1.5 in step 2, add acetic acid
For cadmium in polymerization reaction kettle, cadmium acetate accounts for 2% of material gross mass in polymerization reaction kettle, heating stirring, and reaction temperature control exists
210 DEG C, pressure control is fractionated column top temperature control at 138 DEG C in 0.3 Mpa.In step 3, phosphorus is added into batch condensation polymerization reactor
Triphenyl phosphate ester, vacuum vacuum polycondensation stage, temperature are controlled at 285 DEG C, stir 5h.Pre-crystallization temperature is 135 in step 4
DEG C, time 6h, vacuum drying temperature is 160 DEG C, and the time is spinning speed 2000m/min for 24 hours.Polycondensation reaction stage,
Temperature is controlled at 285 DEG C, stirs 4h.Pre-crystallization temperature is 130 DEG C, time 6h in step 4, and vacuum drying temperature is 170
DEG C, time 28h, spinning speed 2200m/min.
With embodiment 2 the difference is that, antimony glycol and three is added in embodiment 5 into polymerization reaction kettle in step 2
Antimony oxide, antimony glycol and antimony trioxide account for 3% of material gross mass in polymerization reaction kettle.
Embodiment 6 the difference is that, antimony glycol and antimony acetate, second is added into polymerization reaction kettle with embodiment 2
Glycol antimony and antimony acetate account for 3% of material gross mass in polymerization reaction kettle.
Embodiment 7 the difference is that, cadmium acetate and antimony acetate, acetic acid is added into polymerization reaction kettle with embodiment 2
Cadmium and antimony acetate account for 2% of material gross mass in polymerization reaction kettle.
Embodiment 8, the difference is that, terephthalic acid (TPA) and ethylene glycol are according to molar ratio in step 2 with embodiment 2
1:1.3 being added in polymerization reaction kettle.
Embodiment 9, the difference is that, terephthalic acid (TPA) and ethylene glycol are according to molar ratio in step 2 with embodiment 2
1:1.5 being added in polymerization reaction kettle.
Embodiment 10, the difference is that, terephthalic acid (TPA) and ethylene glycol are according to molar ratio in step 2 with embodiment 2
It is added in polymerization reaction kettle for 1:1.
Performance test: light storage towel made from embodiment 1-10 is carried out to the detection of luminescent properties and washing performance respectively.
Luminescent properties: light storage towel is placed under dark condition after unglazed, using daylight light irradiation 15 minutes, then
Place it in dark surrounds again, observation fluorescent lifetime can continue how long.
Washing performance test: light storage towel is placed under dark condition after unglazed, using daylight light irradiation 1 hour,
Then it washs 10 minutes, after being dried under the same terms, then places it in dark surrounds again under the same conditions, observation shines
Time can continue how long.
Test result is as follows shown in table for luminescent properties specific:
The luminous duration of light storage towel made from 1 embodiment 1-10 of table
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Shine duration (h) | 3 | 7 | 5 | 5 | 8 | 6 | 4 | 6 | 6 | 6 |
Embodiment 1, embodiment 4, containing acetic acid with ion, the presence of acetate in ester exchange catalyst used in embodiment 7
It will increase the content of impurity in polyester product, therefore can have an impact to the luminescent properties of light storage towel.Transesterification is urged in embodiment 3
Agent is antimony trioxide, antimony trioxide solubility bottom in ethylene glycol, therefore can also be had an impact to the luminescent properties of light storage towel,
Antimony glycol is used in other embodiments, because antimony glycol solubility in ethylene glycol is big, catalytic effect is best, system
The performance of the light storage fiber obtained is good, the good luminous performance of light storage towel prepared by.
Test result is as follows shown in table for washing performance specific:
Luminous duration after the washing of light storage towel made from 2 embodiment 1-10 of table
| Washing times | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| 0 | 8 | 15 | 10 | 10 | 17 | 12 | 9 | 11 | 12 | 11 |
| 5 | 8 | 14 | 9 | 9 | 16 | 11 | 9 | 10 | 11 | 10 |
| 10 | 7 | 12 | 8 | 8 | 15 | 10 | 7 | 8 | 10 | 10 |
| 15 | 5 | 11 | 8 | 7 | 15 | 8 | 7 | 7 | 8 | 8 |
This specific embodiment is only explanation of the invention, not limitation of the present invention, and those skilled in the art are reading
It can according to need the modification that not creative contribution is made to the present embodiment after complete this specification, but as long as in power of the invention
All by the protection of Patent Law in sharp claimed range.
Claims (8)
1. a kind of production technology of light storage towel, including spin and weave, it is characterised in that: the concrete technology of the spinning process
Steps are as follows:
Step 1 is preparation light storage powder slurry: being in mass ratio that 1:0.5~1:2 is ground by ethylene glycol and light storage powder, grinds
Dispersing agent is added during mill, dispersing agent accounts for the 1~5% of light storage powder slurry gross mass, is ground to the grain of light storage powder slurry
Diameter stops less than 0.5mm, and the liquid phase suspension liquid for obtaining light storage powder is light storage powder slurry；
Step 2 is the preparation of polyethylene terephthalate: will prepare the monomer and second two of polyethylene terephthalate
Alcohol is that 1:1~1:1.5 is added in polymerization reaction kettle according to molar ratio, adds ester exchange catalyst in polymerization reaction kettle,
Ester exchange catalyst accounts for 1~3% of material gross mass in polymerization reaction kettle, heating stirring, and reaction temperature is controlled 200~230
DEG C, pressure control is fractionated column top temperature control at 135~140 DEG C, ester exchange rate starts to let out when reaching 95% in 0.2~0.4MPa
Pressure；
Step 3 is the preparation of light storage polyester fiber: by the benefit of esterification reaction product polyethylene terephthalate made from step 2
It is pressed onto polycondensation vessel with pressure, is at this time normal pressure, light storage powder slurry made from stabilizer and step 1 is added and is stirred, very
Empty polycondensation reaction stage temperature control stirs 2-5h, the inflated with nitrogen into polycondensation vessel stops vacuumizing, and use is cold at 280~290 DEG C
Sink is cooling, Cast Strip pelletizing；
Step 4 be composite fibre preparation: by light storage polyester fiber obtained in step 3 slice be placed into it is pre-crystallized in baking oven,
Then be dried in vacuo, polyester fiber slice be put into it is pre-crystallized in baking oven, using vacuum drying, by light storage polyester fiber and polyester
Fiber is that 3:1~1:1 is delivered in composite spinning machine, then passes through spinneret extrusion molding according to mass ratio；
Step 5 is that composite fibre made from step 4 is successively carried out to thermal finalization, is oiled, the processing of rolling step.
2. the production technology of light storage towel according to claim 1, it is characterised in that: the polyethylene terephthalate
The monomer of ester is terephthalic acid (TPA) or dimethyl terephthalate (DMT).
3. the production technology of light storage towel according to claim 1, it is characterised in that: the dispersing agent in the step 1 is
The compound of fatty alcohol polyoxyethylene ether and modified sodium lignosulfonate.
4. the production technology of light storage towel according to claim 1, it is characterised in that: the transesterification in the step 2 is urged
Agent includes at least one of antimony glycol, antimony trioxide, antimony acetate and cadmium acetate.
5. the production technology of light storage towel according to claim 1, it is characterised in that: the stabilizer in the step 3 is
Any one in triphenyl phosphate, trimethyl phosphate or tetraethylamine hydroxide.
6. the production technology of light storage towel according to claim 1, it is characterised in that: pre-crystallization temperature in the step 4
It is 130~150 DEG C, the time is 4~6h.
7. the production technology of light storage towel according to claim 1, it is characterised in that: vacuum drying in the step 4
Temperature is 140~180 DEG C, and the time is 18~30h.
8. the production technology of light storage towel according to claim 1, it is characterised in that: spinning speed is in the step 4
1500~2500m/min.
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