CN109853133A - A kind of preparation method of composite fibre cotton pad - Google Patents
A kind of preparation method of composite fibre cotton pad Download PDFInfo
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- CN109853133A CN109853133A CN201910167205.1A CN201910167205A CN109853133A CN 109853133 A CN109853133 A CN 109853133A CN 201910167205 A CN201910167205 A CN 201910167205A CN 109853133 A CN109853133 A CN 109853133A
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Abstract
The invention discloses a kind of preparation methods of composite fibre cotton pad, comprising: step 1, premix: low-melting fiber and high-melting fibre being thrown to progress shredding, combing, mixing in shredding carding machine, and just type mixing cotton is made；Step 2, heat-shaping: above-mentioned just type is mixed into cotton and is put into mold, and it is fixed, then by mold assembly on cycle of higher pressure air-heater, heat-shaping is carried out to just type mixing cotton in mold, specifically: cavity temperature reaches 200 DEG C~280 DEG C from initial temperature heating, time is 1-2min, then keeps 1-5min in 200 DEG C~280 DEG C temperature, entire type-approval process is 2-7min；Step 3, depanning finished product: being cooled to 115~125 DEG C to cavity temperature, and mold goes out cavity, demoulding when mold temperature drops to 55~65 DEG C, examines storage after finished product demoulding.This method makes cellucotton pad molding time fast, 2-7min, that is, plastic, and good forming effect.
Description
Technical field
The present invention relates to the technical field of bedding more particularly to a kind of preparation methods of composite fibre cotton pad.
Background technique
Currently, mattress, cushion or pillow etc. are made by cotton, silk, sponge or chemical fibre etc., mainly
Meet different crowd to the different demands of warmth retention property, gas permeability, flexibility and elasticity etc., and existing cotton pad articles remove
Outside sponge, high-melting fibre all forms relatively difficult, and molding effect is not good enough, and molding time is longer.
Documents 1: it is entitled " sea grass fiber mattress and preparation method thereof " application No. is " CN201310030890.6 ",
The preparation process of the fiber mat includes the following steps: that various fibers are first carried out with combing respectively remixes；It will be mixed with lapping machine
Fleece-laying at required thickness net；By the net completed with needle thorn at the fiber mat of predetermined shape；From top to bottom or from the bottom up
To fiber mat blowing hot-air, so that unfused high-melting fibre, is bonded by the low-melting fiber fusing in net as bonding agent；Again
Blow a cold wind over from the bottom up or from top to bottom to fiber mat, allow fusing after low-melting fiber cooling and shaping.The system of above-mentioned fiber mat
Standby technique, using the fiber of two kinds of different melting points as raw material, and in such a way that blowing hot-air first on fiber mat is blown a cold wind over again,
So that the fiber in fiber mat bonds together, carrys out bondable fibers pad instead of glue, improve the cementability of fiber mat.The patent
The specific preparation method of the sea grass fiber mattress disclosed in specification embodiment carries out as follows: (S110) is laid with 5cm thickness
The raw mixture；(S130) being penetrated using hot wind through-transmission technique with 180 DEG C of hot wind keeps two-component core-skin therein fine
The skin of dimension melts；(S140) using 5 DEG C of cold wind of cold wind through-transmission technique, make the bondable fibers solidification of fusing, by each fibre
Dimension bonds together, and 0.4cm thickness sea grass fiber mattress is made.However the program still has Railway Project: (1), in forming process
In, when cavity temperature is maintained at 120-140 and spends, cellucotton pillow passes through 30 minutes still prepatterns；It is maintained in cavity temperature
When 170-190 is spent, cellucotton pillow starts to be formed, and entire setting time at least needs 40 minutes even longer times could be complete
At, and molding effect and not ideal enough；(2), method of the program using needle thorn sizing, complex steps, molding effect are poor；
(3), when in step (S130) using hot wind through-transmission technique, for the hot wind not with pressure, penetration capacity is poor, cannot be by polypropylene fibre
It is complete to tie up silk fusing.
The molding effect for how improving composite fibre cotton pad becomes urgent problem to be solved.
Summary of the invention
It is an object of the invention to overcome the defect of the prior art, a kind of preparation method of composite fibre cotton pad is provided,
So that cellucotton pad molding time is fast, 2-7min, that is, plastic, and good forming effect.
The present invention is implemented as follows:
It is an object of that present invention to provide a kind of preparation methods of composite fibre cotton pad, include the following steps:
Step 1, premix: low-melting fiber and high-melting fibre are thrown in shredding carding machine and carries out shredding, combing, mix
It closes, and just type mixing cotton is made, the fusing point of the low-melting fiber is 100 DEG C~130 DEG C, and the fusing point of the high-melting fibre is
250 DEG C~310 DEG C；
Step 2, heat-shaping: above-mentioned just type is mixed into cotton and is put into mold, and is fixed, then assembles mold
On cycle of higher pressure air-heater, heat-shaping is carried out to just type mixing cotton in mold, specifically: cavity temperature is heated from initial temperature
Reach 200 DEG C~280 DEG C, time 1-2min, then keeps 1-5min in 200 DEG C~280 DEG C temperature, entire type-approval process is
2-7min, and the wind pressure of the cycle of higher pressure air-heater is 1700-2000Pa；
Step 3, depanning finished product: being cooled to 115~125 DEG C to cavity temperature, and mold goes out cavity, drops to 55 to mold temperature
It is demoulded at~65 DEG C, examines storage after finished product demoulding.
In the step 1, need to be added low-melting fiber in forming process with high-melting fibre, low-melting fiber is added
Amount to control in 10%-30%, low-melting fiber is added excessive, and cushion pillow, which is worked it out, to harden.According to low-melting fiber
The ratio of addition, high-melting fibre correspondence are subtracted each other, and overall ratio is maintained at 100%.It is fine that low-melting fiber plays connection high-melting-point
The effect of dimension.
Compared with prior art, the invention has the advantages that and effect:
1, the preparation method of composite fibre cotton pad provided by the invention, unlike the prior art, we select cavity
Temperature reaches 200 DEG C~280 DEG C, time 1-2min from initial temperature heating, then keeps 1- in 200 DEG C~280 DEG C temperature
5min, entire type-approval process are 2-7min；115~125 DEG C are cooled to cavity temperature, mold goes out cavity, drops to mold temperature
It is demoulded when to 55~65 DEG C, and the wind pressure of the cycle of higher pressure air-heater is 1700-2000Pa；(200 DEG C of the temperature of this range
~280 DEG C) and wind pressure (1700-2000Pa) make low-melting fiber rapid melting jointly, while high-melting fibre is not melted
Change, the hot wind with pressure makes cellucotton pad molding time fast, 2-7min, that is, plastic, and good forming effect, wind pressure reach
Only have temperature under the premise of high-end and non-fusible high-melting fibre after certain value, low-melting fiber to be made sufficiently to melt friendship
Connection can just make product effect up to most preferably.
2, the preparation method of composite fibre cotton pad provided by the invention, the shell of mold used by step 2 using close
Structure is closed, so that the hot wind with pressure can only be down through making low-melting fiber to guarantee that high-pressure hot wind is penetrated from centre
Sufficiently fusing crosslinking.The inner cavity of mold is also designed to meet the shape of production requirement, example: pillow, pillow pad (embodiment
3), back cushion, cushion (embodiment 1), mattress (embodiment 2), protector etc..The heat-shaping work that inner cavity of different shapes is arranged in pairs or groups different
The skill temperature and time of cooling (acid extraction) is simple and fast.
Detailed description of the invention
Fig. 1 is the flow chart of the preparation method of composite fibre cotton pad provided by the invention；
Fig. 2 is the die structure dwg that the embodiment of the present invention 1 uses；
Fig. 3 is the die structure dwg that the embodiment of the present invention 2 uses；
Fig. 4 is the die structure dwg that the embodiment of the present invention 3 uses.
Specific embodiment
Embodiment 1
1, fiber combs: low-melting fiber and high-melting fibre first being carried out fibre first with fiber carding machine respectively before mixing
Dimension combing, wherein the addition weight of low-melting fiber accounts for the 10% of total amount, and the addition weight of high-melting fibre accounts for the 90% of total amount.
Here selection low-melting fiber is brand: South Korea's Saehan (Yi Silong)；Type: 4080 low-melting fibers；Fusing point: 110 DEG C；
Specification: 4D*51MM.What high-melting fibre was selected is 15D*64 three-dimensional spiral polyester fiber.
2, it premixes: low-melting fiber and high-melting fibre is thrown to progress shredding, combing, mixing in shredding carding machine,
And just type mixing cotton is made.
3, heat-shaping: as shown in Fig. 2, (mold includes pedestal 1, shell 2 and gland 3, the pedestal 1 with cushion mold
Multiple ventholes are equipped with, the shell 2 is mounted on pedestal 1, and the gland 3 is assemblied in shell 2, and gland 3 is equipped with
Convenient for the handle 3-1 of operation, gland 3 is equipped with one group of venthole, and the inner core of mold will be mixed at octagonal cushion shape
First type mixing cotton be put into mold, then by gland 3 be placed in just type mix cotton on and by gland 3 by first type mix cotton compacting,
Then by one group of positioning pin, (position of positioning pin is arranged according to the thickness of cushion, the cushion positioning pin installation of different-thickness
Position it is different) gland is resisted and is compressed, then mold is placed at the air outlet of cycle of higher pressure air-heater, starting high pressure is followed
Ring air-heater, control cycle of higher pressure air-heater make cavity temperature reach 280 DEG C, time 1min from initial temperature heating, so
1min is kept in 280 DEG C of temperature afterwards, entire type-approval process is 2min；The wind pressure of cycle of higher pressure air-heater is 1700-2000Pa；It follows
The parameter of ring-like industrial air heater is electric thermal power: 3~500KW；Maximum quantity of wind: 1.8~75M3/min；Wind pressure: 100~
7500pa；Outlet temperature: room temperature~350 DEG C；Inlet temperature: room temperature~180 DEG C；It can be recycled, thermal losses is few, energy saving height
Effect, uninterrupted continuous work, it is durable persistently, temperature control it is accurate.
3, depanning finished product: being cooled to 120 DEG C to cavity temperature, and mold goes out cavity, demoulding when mold temperature drops to 60 DEG C,
Mold is removed, positioning pin is removed, removes gland 3, finally takes out finished product cushion (thickness 20mm).
Embodiment 2
1, fiber combs: low-melting fiber and high-melting fibre first being carried out fibre first with fiber carding machine respectively before mixing
Dimension combing, wherein the addition weight of low-melting fiber accounts for the 30% of total amount, and the addition weight of high-melting fibre accounts for the 70% of total amount.
Here selection low-melting fiber is brand: South Korea's Saehan (Yi Silong)；Type: 4080 low-melting fibers；Fusing point: 110 DEG C；
Specification: 4D*51MM.High-melting fibre is 15D*64 three-dimensional spiral polyester fiber 50%, flaxen fiber 50%.
2, it premixes: low-melting fiber and high-melting fibre is thrown to progress shredding, combing, mixing in shredding carding machine,
And just type mixing cotton is made.
2, heat-shaping: as shown in figure 3, (mold includes pedestal 1, shell 2 and gland 3, the pedestal 1 with mattress mold
Multiple ventholes are equipped with, the shell 2 is mounted on pedestal 1, and the gland 3 is assemblied in shell 2, and gland 3 is equipped with
Convenient for the handle 3-1 of operation, gland 3 is equipped with multiple ventholes, first by what is mixed for the inner core of mold is at mattress shape
Type mixing cotton is put into mold, then gland 3 is placed on the first type mixing cotton mixed and first type is mixed cotton by gland 3
Compacting, then by one group of positioning pin, (position of positioning pin is arranged according to the thickness of cushion, the cushion positioning pin of different-thickness
The position of installation is different), then mold is placed at the air outlet of cycle of higher pressure air-heater, starts cycle of higher pressure air-heater, control
Cycle of higher pressure air-heater processed makes cavity temperature reach 280 DEG C, time 3min from initial temperature heating, then in 280 DEG C of temperature
Degree keeps 4min, and entire type-approval process is 7min；The wind pressure of cycle of higher pressure air-heater is 1700-2000Pa；Circular industry heat
The parameter of blower is electric thermal power: 3~500KW；Maximum quantity of wind: 1.8~75M3/min；Wind pressure: 100~7500pa；Outlet
Temperature: room temperature~350 DEG C；Inlet temperature: room temperature~180 DEG C；Can be recycled, thermal losses is few, it is energy-efficient, uninterruptedly connect
Continuous work, it is durable persistently, temperature control it is accurate.
3, depanning finished product: being cooled to 125 DEG C to cavity temperature, and mold goes out cavity, demoulding when mold temperature drops to 65 DEG C,
Mold is removed, positioning pin is removed, removes gland 3, finally takes out finished product mattress (thickness 80mm).
Embodiment 3
1, fiber combs: low-melting fiber and high-melting fibre first being carried out fibre first with fiber carding machine respectively before mixing
Dimension combing, wherein the addition weight of low-melting fiber accounts for the 20% of total amount, and the addition weight of high-melting fibre accounts for the 80% of total amount.
Here selection low-melting fiber is brand: South Korea's Saehan (Yi Silong)；Type: 4080 low-melting fibers；Fusing point: 110 DEG C；
Specification: 4D*51MM.High-melting fibre is wool fiber 40%, 7D*51 three-dimensional spiral polyester fiber 60%.
2, it premixes: low-melting fiber and high-melting fibre is thrown to progress shredding, combing, mixing in shredding carding machine,
And just type mixing cotton is made.
3, heat-shaping: as shown in figure 4, (mold includes pedestal 1, shell 2 and gland 3, the pedestal with pillow pad mold
1 is equipped with multiple ventholes, and the shell 2 is mounted on pedestal 1, and the gland 3 is assemblied in shell 2, and is set on gland 3
There is the handle 3-1 convenient for operation, gland 3 is equipped with one group of venthole, and the inner core of mold is first by what is mixed at pillow pulvilliform shape
Type mixing cotton is put into mold, and first type is mixed cotton compacting by gland 3, is then resisted gland simultaneously by one group of positioning pin
(position of positioning pin is arranged according to the thickness of cushion, and the position of the cushion positioning pin installation of different-thickness is different) is compressed, so
Mold is placed in afterwards at the air outlet of cycle of higher pressure air-heater, starts cycle of higher pressure air-heater, control cycle of higher pressure air-heater makes
It obtains cavity temperature and reaches 250 DEG C, time 1.5min from initial temperature heating, then keep 3min in 250 DEG C of temperature, it is entire fixed
Type process is 4.5min；The wind pressure of cycle of higher pressure air-heater is 1700-2000Pa；The parameter of circular industry air-heater is electricity
Thermal power: 3~500KW；Maximum quantity of wind: 1.8~75M3/min；Wind pressure: 100~7500pa；Outlet temperature: room temperature~350 DEG C；
Inlet temperature: room temperature~180 DEG C；Can be recycled, thermal losses is few, energy-efficient, uninterrupted continuous work, it is durable persistently, temperature
Control is accurate.
3, depanning finished product: being cooled to 125 DEG C to cavity temperature, and mold goes out cavity, demoulding when mold temperature drops to 65 DEG C,
Mold is removed, positioning pin is removed, removes gland 3, finally takes out finished product pillow pad (thickness 30mm).
Experimental example
One, the exploration of low-melting fiber and high-melting fibre proportion
1, high and low melting-point fibers net formation proportioning test
Table 1
| Low-melting fiber g | High-melting fibre g | Quality: g | Draught temperature: DEG C | Time: min | Completed state |
| 20 | 180 | 200 | 200 | 5 | It is soft |
| 40 | 160 | 200 | 200 | 5 | It is harder |
| 60 | 140 | 200 | 200 | 5 | Firmly |
As shown in Table 1, the amount that low-melting fiber is added will be controlled in 10%-30%, and excessive, product is added in low-melting fiber
Working it out can harden.
Two, the test of wind pressure, product thickness, temperature and time
1, control group 1: when without wind pressure, and temperature selects 140 DEG C~180 DEG C, (a conventional oven) high and low melting-point fibers network
Molding, product thickness, the test result of temperature and time are as follows:
Table 2
2, control group 2: select wind pressure (1500Pa), and temperature select 140 DEG C~180 DEG C, high and low melting-point fibers network at
Type, product thickness, the test result of temperature and time are as follows:
Table 3
3, experimental group: selecting wind pressure (1700Pa-2000Pa) and temperature selects 200 DEG C~280 DEG C, high and low melting-point fibers
Net formation, product thickness, the test result of temperature and time are as follows:
Table 4
Table 2 (wind pressure 1500Pa) is compared with table 1 (no wind pressure), when wind pressure is increased to 1500Pa, the product of same thickness, and choosing
With it is mutually synthermal when, molding time reduces by more than half；
Table 3 is compared with table 2, it is known that and when temperature selects 200 DEG C~280 DEG C, entire type-approval process only needs 2-7min, wherein when
When product thickness is 20mm, when temperature is 280 DEG C, entire molding time only needs 2min, and good forming effect.But temperature is higher than
280 DEG C, and wind pressure be higher than 2000Pa when, high-melting fibre can melt, it is difficult to prepare cellucotton pad.
To sum up show select 200 DEG C~280 DEG C temperature, and wind pressure be 1700-2000Pa when, cellucotton pad molding time
Fast and good forming effect.
Described is only 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 should all include within protection scope of the present invention.
Claims (6)
1. a kind of preparation method of composite fibre cotton pad, which comprises the steps of:
Step 1, premix: being thrown to progress shredding, combing, mixing in shredding carding machine for low-melting fiber and high-melting fibre,
And just type mixing cotton is made, the fusing point of the low-melting fiber is 100 DEG C~130 DEG C, and the fusing point of the high-melting fibre is 250
DEG C~310 DEG C；
Step 2, heat-shaping: above-mentioned just type is mixed into cotton and is put into mold, and is fixed, then assembles mold in high pressure
On cycling hot blower, heat-shaping is carried out to just type mixing cotton in mold, specifically: cavity temperature reaches from initial temperature heating
200 DEG C~280 DEG C, time 1-2min, 1-5min then is kept in 200 DEG C~280 DEG C temperature, entire type-approval process is 2-
7min, and the wind pressure of the cycle of higher pressure air-heater is 1700-2000Pa；
Step 3, depanning finished product: being cooled to 115~125 DEG C to cavity temperature, and mold goes out cavity, drops to 55~65 to mold temperature
DEG C when demould, finished product demoulding after examine storage.
2. the preparation method of composite fibre cotton pad as described in claim 1, which is characterized in that low melting point is fine in the step 1
The addition weight of dimension accounts for the 10%-30% of total amount, and the addition weight of the high-melting fibre accounts for the 70%-90% of total amount.
3. the preparation method of composite fibre cotton pad as described in claim 1, which is characterized in that the step 2 mesohigh circulation
The wind pressure of air-heater is 1800-1900Pa.
4. the preparation method of composite fibre cotton pad as described in claim 1, which is characterized in that the high-melting fibre is to change
One of, animal natural fibres, natural plant fiber are a variety of.
5. the preparation method of composite fibre cotton pad as described in claim 1, which is characterized in that in the step 1, before mixing first
Each fiber is subjected to fiber opening, combing, mixing first with fiber opening carding machine respectively.
6. the preparation method of composite fibre cotton pad as described in claim 1, which is characterized in that in the step 2, the mold
Including pedestal, shell and gland, the center position of the pedestal is equipped with hollow column, and pedestal is equipped with multiple ventholes, institute
It states shell to be mounted on the base, the periphery of the shell is closed structure, and the gland is assemblied in shell, and is set on gland
There is the handle convenient for operation, gland is equipped with one group of venthole.
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