CN105200656B - Nonwoven mask substrate and preparation method thereof - Google Patents
Nonwoven mask substrate and preparation method thereof Download PDFInfo
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- CN105200656B CN105200656B CN201510645751.3A CN201510645751A CN105200656B CN 105200656 B CN105200656 B CN 105200656B CN 201510645751 A CN201510645751 A CN 201510645751A CN 105200656 B CN105200656 B CN 105200656B
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Abstract
The present invention belongs to beauty and skin care field on a kind of nonwoven mask substrate and preparation method thereof.Methods described includes：Cellulose fibre is opened into bag, lower floor's fibre web is formed after thick shredding, mixing, smart shredding, hello cotton, combing, cross lapping, drawing-off；Water-soluble polyvinyl alcohol fibers are opened into bag, after two road shreddings, air-flow feed cotton, mixed and disorderly combing, is laid on lower floor's fibre web and forms upper strata fibre web；Upper strata fibre web is sent into high-pressure jet area together with lower floor fibre web and carries out spun lacing reinforcing, fiber is produced entanglement mutually with fiber in lower floor's fibre web and forms composite web；Composite web is sent into water-soluble area, dissolves and removes vinal, obtain single layer web；By single layer web after drying, winding, cutting process, nonwoven mask substrate is made.Nonwoven mask substrate fibre gap and capillary porosity prepared by the present invention is more, and it is larger to solve facial mask non-woven base cloth grammes per square metre, the problem of poor to skin sticking nature, reaches the effect that facial mask non-woven base cloth is frivolous, water suction is ventilative, moisturizing sticking nature is good.
Description
Technical field
The present invention relates to beauty and skin care field, more particularly to a kind of nonwoven mask substrate and preparation method thereof.
Background technology
Facial mask is a kind of skincare product that beauty industry is commonly used, good etc. with easy to use, instant effect, skin effect
Feature, thus liked by female friend very much.Facial mask is classified according to material, can be divided into Biofibre facial mask, mud film, gel face
Film and using non-woven fabrics as the facial mask of base material, wherein non-woven fabrics facial mask are that non-woven fabrics mask substrate first is made using fiber, then
The nutrient solution containing Multiple components is impregnated again, is made after filling and sealing, non-woven fabrics facial mask is taken out from Filling bag when using straight
Connect and be attached to face, it is very casual, and can be used in any occasion, have become the most popular face's nursing of in the market
Product.
Non-woven fabrics for making mask substrate mainly has spun lacing method non-woven fabrics, Nonwovens of spunbond and needlepunched nonwoven
Cloth, wherein spun lacing method non-woven fabrics have that feel is soft, drapability is good, outward appearance and traditional textile closest to etc. performance and in facial mask row
Industry is very popular.Spun lacing method non-woven fabrics is big according to cross lapping, semidecussation and direct networking method three is broadly divided into net mode
Class, wherein cross lapping and semidecussation method spun laced fabric vertical, horizontal strength relatively, but are partial to thick grammes per square metre product, directly into
Net method spun laced fabric vertical, horizontal strength differs greatly, but is partial to thin grammes per square metre product.Because facial mask when in use to base fabric it is vertical,
Laterally strength is required, thus cross lapping and semidecussation method spun laced fabric are the first choices of mask substrate.Over the past two years, market was opened
Begin popular docile, thin, light, saturating facial mask, and cross lapping and semidecussation method are difficult to produce 30g/m2Following spun laced fabric, therefore
The market demand develops thin grammes per square metre spunlace non-woven cloth, very necessary.
Existing use spun lacing method non-woven fabrics mainly has as the data of mask substrate：
Patent CN201410847297.5 discloses waterproof water lock patch skin non-woven fabrics when being permeated when absorbing water, small using fineness
It is composited in the 5-15 millimeter cellulose fibres equal to 0.9 dtex and PP hydrophobic layer spun lacings, due to using the short long and slender dimension of fine-denier
Cellulose fiber is hydrophobic PP spinning buildings as water accepting layer, bottom, and the spinning building is taken out when blocking vacuum suction to High-Pressure Water
Suction, spun lacing easily makes the short long and slender cellulose fiber of fine-denier be washed away by water under high pressure when reinforcing, and production efficiency is relatively low.
Patent CN201310277517.0 discloses the production work that a kind of pearl fiber combines spunlace non-woven cloth with viscose rayon
Skill, uses pearl fiber and viscose rayon for raw material, sequentially enters shredding, combing, lapping, drawing-off, spun lacing, drying, online inspection
Survey, batch and cut after process and be made, because two carding machine feeding fibre web grammes per square metres are 30g/m2, therefore average gram of finished product
The g/m of weight >=602；Patent CN200810029962.4 discloses a kind of elastic facial mask cloth, is added using direct networking method spunlace non-woven cloth
Work technique is made, and the elastic facial mask cloth contains composite superfine staple, absorbent cotton or bamboo fibre, with certain elastic returning
Property, the spun lacing base fabric grammes per square metre being made is in 60-100 g/m2Between.The non-woven fabrics that above-mentioned two patents are related to is as mask substrate
When, because non-woven fabrics grammes per square metre is larger, its stickiness to facial skin can be influenceed.
Patent CN201410339416.6 discloses a kind of pure natural silk facial mask of quick absorbability, is with the short fibre of pure silk
Tie up as raw material, real silk non-woven cloth is prepared using spun lacing net-forming technology, after pretreatment, real silk non-woven cloth is immersed into facial mask nutrition
It is made in liquid；Patent CN201410370820.X provides a kind of non-woven fabrics of chitin, by the chitin containing 5-90 parts by weight
Other fibers of fiber and 10-95 parts by weight, are made non-woven fabrics of chitin by spun lacing, acupuncture, heat pressing process after mixing, have
Protect effect of skin cleaning health.Above-mentioned patent highlights the feature of mask substrate, be not directed to light and thin type and its with
The laminating sex chromosome mosaicism of face.
As can be seen that the nonwoven mask substrate disclosed in Patent data exist processing efficiency it is low realize that difficulty is big, grammes per square metre compared with
The problem of sticking nature is bad greatly, or it is partial to emphasize the feature of mask substrate.Because facial mask belongs to a kind of trendy product,
Need to follow trend of the market and the desire to purchase of consumer can just be caused by changing, and it is good to thin, stickiness in face of market today
Facial mask demand, nonwoven mask substrate also have to carry out specific aim exploitation.
The content of the invention
To solve the above mentioned problem that prior art is present, the invention provides a kind of nonwoven mask substrate and its preparation side
Method, the technical scheme of the nonwoven mask substrate and preparation method thereof is as follows：
A kind of preparation method of nonwoven mask substrate, methods described includes：
Cellulose fibre is opened after bag, the shape after thick shredding, mixing, smart shredding, hello cotton, combing, cross lapping, drawing-off
Into lower floor's fibre web；
Water-soluble polyvinyl alcohol fibers are opened after bag, after two road shreddings, air-flow feed cotton, mixed and disorderly combing, directly laid
Upper strata fibre web is formed on lower floor's fibre web, the water solution temperature of the water-soluble polyvinyl alcohol fibers is 50 DEG C, fiber finer
Spend for 1.5-3D, length is 38-51mm, described to open water-soluble polyvinyl alcohol fibers after bag, fed by two road shreddings, air-flow
After cotton, mixed and disorderly combing, in the step of being directly laid on lower floor's fibre web and form upper strata fibre web, the major technique taken is arranged
Shi You：A. tight gauge divides by force comb：The gauge between cylinder and working roll is adjusted between 18-22mm, between cylinder and angle stripper
Gauge between 18-22mm, cylinder and working roll speed than increase are by the gauge between cylinder and doffer between 8-10mm
12-16:1, strengthen carding capacity；B. gently feed beat, appropriate shredding：Two road opener speed are controlled in 600-700r/ respectively
Between min and 800-900r/min；C. large speed ratio is shifted soon：Cylinder and the fast ratio of angle stripper are adjusted to 5-7:1, angle stripper and
Working roll speed ratio is adjusted to 2-3:1, meanwhile, cylinder operating rate is down to 700-820m/min, doffer speed is turned down in 40-50
Between m/min, to increase fibre migration rate；
Lower floor's fibre web and the upper strata fibre web are sent into high-pressure jet area together and carry out spun lacing reinforcing, using seven road water
The spun lacing reinforcing mode that thorn, rotary drum and plain net are combined, using medium spun lacing pressure, pressure set points are respectively：Rotary drum spun lacing
Qu Wudao：Prewet 4.5-6bar, 30-40 bar, 55-60 bar, 65-78 bar, 88-92 bar, the road of plain net spun lacing area two：
90-95 bar, 70-80 bar, after reinforcing, in the water-soluble polyvinyl alcohol fibers and lower floor's fibre web in the upper strata fibre web
Cellulose fibre produce entanglement mutually and form composite web；
The composite web is sent into water-soluble area, dissolves and removes the vinal in the composite web, obtain
Single layer web；
By the single layer web after drying, winding, cutting process, nonwoven mask substrate is made.
Optionally, it is described that the composite web is sent into water-soluble area, dissolve and remove the polyethylene in the composite web
Alcohol fiber, including：
The composite web is integrally sent into water-soluble processing is carried out in ultrasonic sink, the composite web quality with it is described
The ratio of water quality is 1 in ultrasonic sink:40-50, water is changed using overflow, wherein the water temperature of first of ultrasonic sink exists
Between 50-55 DEG C, ultrasonic frequency is 28 kHz, and it is 40-50%, second ultrasound that solution exchange rate in tank is adjusted during overflow
The water temperature of ripple tank is between 55-60 DEG C, and ultrasonic frequency is 40kHz, and it is 20- that solution exchange rate in tank is adjusted during overflow
30%, dissolve and remove the vinal in the composite web.
Optionally, it is described to dissolve and remove after the vinal in the composite web, gather in the composite web
Alcohol fibers are molten except rate is between 98-99.5%, and the composite web becomes the individual layer fibre being made up of lowermost fibre cellulose fiber
Net.
Optionally, it is described by the single layer web by drying, winding, cutting process after, nonwoven mask substrate is made, wrap
Include：
The single layer web is sent into baking oven and carries out drying and processing, the drying mode penetrated using cylinder hot blast, baking oven
Temperature is between 130-140 DEG C, and hot blast penetrates Boiler pressure control in 70000-80000m3Between/h, drying rate is 40-50m/
min；
The single layer web after drying is cut, then grammes per square metre is made in 20.5-30.7g/m in winding2Between, it is thick
Degree is between 30-60 μm, and surface distributed has the nonwoven mask substrate in 20-30 μm of irregular aperture.
Optionally, when preparing the nonwoven mask substrate, by workshop temperature control in 22-24 DEG C, relative humidity control
In 60-65%.
Optionally, the cellulose fibre is at least one of tencel, CUP, and fibre fineness is 1.0-1.5D,
Length is 38-51mm.
A kind of nonwoven mask substrate, the nonwoven mask substrate is by the preparation side of any of the above-described described nonwoven mask substrate
Method is prepared, and the nonwoven mask substrate is collectively formed by water-soluble polyvinyl alcohol fibers and cellulose fibre.
Compared with prior art, the preparation method for the nonwoven mask substrate that the present invention is provided has advantages below：
1. using the production method of the spun laced fabric of semidecussation upper strata fibre web is made in water-soluble polyvinyl alcohol fiber by the present invention,
It is combined and is prepared in slim mask substrate, spun lacing reinforcing process together with lower floor's fibre web that cellulose fibre is made, polyvinyl alcohol is fine
Dimension is in or rectilinear or tilt state and be inserted into cellulosic fiber webs, vinal and cellulose fibre it is entangled to each other
Together, countless a diameter of 20-30 μm irregular fine pores are formd after water-soluble processing in lower floor's fibre web, production is not being reduced
On the premise of speed, make it possible that nonwoven mask substrate ultra-thin, ventilative, attractive in appearance is produced.
2. due to using water solution temperature for 50 DEG C of vinal, crimpness is smaller, crispation number is only 1.5/
Cm, fiber surface is straight, cohesive force is poor, easily winds cylinder, therefore employed during shredding combing tight gauge divide by force comb, it is light hello it is many
Beat, the technical measures that appropriate shredding, large speed ratio are shifted soon, to form uniform web.
3. the present invention uses seven road spun lacing consolidation process, hydraulic pressure is stepped up, it is ensured that vinal is produced in advance
Sufficiently it is swelled, water-soluble processing is subsequently carried out using the shock wave produced by ultrasonic wave " cavitation effect ", makes vinal
Cellulose fiber surface and internal depolymerization and disengaging from lower floor's fibre web, and water is changed by overflow and excluded, make polyvinyl alcohol
Fiber is molten except rate has reached 98-99.5%, then penetrates drying by hot blast, obtains frivolous, soft and mushy facial mask nothing
Spin base fabric.
In a word, the present invention is by selecting 50 DEG C of polyvinyl alcohol water soluble fibers and its special shredding carding technology measure, surpassing
Sound wave to vinal it is quick it is effective remove, obtain the spun lacing of the irregular hole of fluffy soft, surface distributed without
Cloth is spun, grammes per square metre is in 20.5-30.7g/m2Between, with many excellent spies such as frivolous, ventilative water suction, soft, moisturizing sticking nature be good
Property, it is the mask substrate of a kind of qualified " can breathe ", is had a extensive future in beauty industry.
Nonwoven mask substrate fibre gap and capillary porosity prepared by the present invention is more, solves facial mask non-woven base cloth grammes per square metre
It is larger, the problem of poor to skin sticking nature, reach the effect that facial mask non-woven base cloth is frivolous, water suction is ventilative, moisturizing sticking nature is good
Really.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
Invention.
Embodiment
With reference to specific embodiment（But it is not limited to illustrated embodiment) the invention will be further described.Wherein tencel and
CUP is purchased from Shaoxing Dan Ao Fabritex S.r.l, and wherein tencel model A100, the transparency is good；50 DEG C of water-soluble polyethylene
Alcohol fiber is purchased from Kuraray trade (Shanghai) Co., Ltd..
Embodiment 1：
1st, cellulose fibre is opened after bag, after thick shredding, mixing, smart shredding, hello cotton, combing, cross lapping, drawing-off
Form lower floor's fibre web.
2nd, water-soluble polyvinyl alcohol fibers are opened after bag, after two road shreddings, air-flow feed cotton, mixed and disorderly combing, directly spread
It is placed on lower floor's fibre web and forms upper strata fibre web.
3rd, upper strata fibre web is sent into high-pressure jet area together with lower floor fibre web and carries out spun lacing reinforcing, make the water in the fibre web of upper strata
Soluble polyvinyl alcohol fiber produces mutually entanglement with the cellulose fibre in lower floor's fibre web and forms composite web.
4th, composite web is sent into water-soluble area, dissolves and remove the vinal in composite web, obtain individual layer fine
Net.
5th, nonwoven mask substrate is made after drying, winding, cutting process in single layer web.
Nonwoven mask substrate surface prepared by the present invention and countless tiny holes are filled with inside fibre web, solve facial mask use
Non-woven base cloth grammes per square metre is larger, the problem of poor to skin sticking nature, has reached that facial mask non-woven base cloth is frivolous, water suction is ventilative, moisturizing
The good effect of sticking nature.
Embodiment 2：
1st, the preparation of lower floor's fibre web
Cellulose fibre is opened by the thick shredding of airflow line feeding opener progress after bag, then passes through mixing, smart shredding, feed
Lower floor's fibre web is formed after cotton, combing, cross lapping and drafting process, wherein cellulose fibre is CUP, and fibre fineness is
1.0 D, length is 38mm；
2nd, the preparation of upper strata fibre web
From the vinal that water solution temperature is 50 DEG C, fibre fineness is 1.5D, and length is 38mm, by water-soluble poly
Alcohol fibers open after bag by two road shreddings, air-flow feed cotton, it is mixed and disorderly comb after, be directly laid on foregoing lower floor's fibre web and shape
Into upper strata fibre web, wherein the technical measures taken have：
A. tight gauge divides by force comb：It is 18mm to adjust the gauge between cylinder and working roll, between cylinder and angle stripper every
Away from for 18mm, the gauge between cylinder and doffer is 8mm, by cylinder and working roll speed than increasing as 12:1, strengthen carding capacity；
B. gently feed beat, appropriate shredding：Two road opener speed are controlled as 600r/min and 800r/min；
C. large speed ratio is shifted soon：Cylinder and the fast ratio of angle stripper are adjusted to 5:1, stripper and worker speed ratio is adjusted to
2:1, meanwhile, cylinder operating rate is down to 700m/min, doffer speed is turned down as 40 m/min, to increase fibre migration rate；
3rd, spun lacing is reinforced
Lower floor's fibre web and upper strata fibre web are sent into high-pressure jet area together and carry out spun lacing reinforcing, using seven road spun lacings, rotary drum
The spun lacing reinforcing mode being combined with plain net, using medium spun lacing pressure, pressure set points are respectively：The road of rotary drum spun lacing area five：
Prewet 4.5 bar, 30bar, 55bar, 65bar, 88bar, the road of plain net spun lacing area two：90bar, 70bar, after reinforcing, lower floor is fine
Cellulose fiber fibre web and upper strata vinal fibre web are compound as an entirety.
4th, water-soluble removal vinal
Foregoing composite web is integrally sent into water-soluble processing is carried out in ultrasonic sink, it is water-soluble than being 1:40（Web quality
With the ratio of water quality in tank）, water is changed using overflow, wherein the water temperature of first of ultrasonic sink is 50 DEG C, ultrasonic wave frequency
Rate is 28kHz, and it is 40% that solution exchange rate in tank is adjusted during overflow, and the water temperature of second ultrasonic sink is 55 DEG C, ultrasonic wave
Frequency is 40kHz, and it is 20% that solution exchange rate in tank is adjusted during overflow, after two road ultrasonic waves clean molten remove, polyvinyl alcohol
Fiber is molten except rate is 99.5%, and upper and lower layer composite web becomes the single layer web being made up of lowermost fibre cellulose fiber.
5th, dry
The single layer web formed after water-soluble processing is sent into baking oven and carries out drying and processing, the baking penetrated using cylinder hot blast
Dry mode, oven temperature is 130 DEG C, and hot blast penetrates Boiler pressure control in 70000m3/ h, drying rate is 50m/min.
6th, winding shaping
Single layer web after drying is cut, it is 20.5g/m that then winding, which turns into grammes per square metre,2, thickness is 30 μm, surface
The mask substrate finished product in 20-24.5 μm of irregular aperture is distributed with.
It is 22 DEG C to control workshop temperature during processing, and relative humidity control is 60%.
Embodiment 3：
1st, the preparation of lower floor's fibre web
Cellulose fibre is opened by the thick shredding of airflow line feeding opener progress after bag, then passes through mixing, smart shredding, feed
Lower floor's fibre web is formed after cotton, combing, cross lapping and drafting process, wherein cellulose fibre is tencel, and fibre fineness is 1.5D,
Length is 38mm；
2nd, the preparation of upper strata fibre web
From the vinal that water solution temperature is 50 DEG C, fibre fineness is 2D, and length is 51mm, by water-soluble poly second
Enol fiber open after bag by two road shreddings, air-flow feed cotton, it is mixed and disorderly comb after, be directly laid on foregoing lower floor's fibre web and formed
Upper strata fibre web, wherein the technical measures taken have：
A. tight gauge divides by force comb：It is 20mm to adjust the gauge between cylinder and working roll, between cylinder and angle stripper every
Away from for 20mm, the gauge between cylinder and doffer is 10mm, by cylinder and working roll speed than increasing as 14:1, enhancing point comb energy
Power；
B. gently feed beat, appropriate shredding：Two road opener speed are controlled as 650r/min and 850 r/min；
C. large speed ratio is shifted soon：Cylinder and the fast ratio of angle stripper are adjusted to 6:1, stripper and worker speed ratio is adjusted to
2.5:1, meanwhile, cylinder operating rate is down to 760m/min, doffer speed is turned down as 45 m/min, to increase fibre migration
Rate；
3rd, spun lacing is reinforced
Lower floor's fibre web and upper strata fibre web are sent into high-pressure jet area together and carry out spun lacing reinforcing, using seven road spun lacings, rotary drum
The spun lacing reinforcing mode being combined with plain net, using medium spun lacing pressure, pressure set points are respectively：The road of rotary drum spun lacing area five：
Prewet 5bar, 35 bar, 58 bar, 70bar, 90bar, the road of plain net spun lacing area two：92 bar, 75bar, after reinforcing, lower floor is fine
Cellulose fiber fibre web and upper strata vinal fibre web are compound as an entirety.
4th, water-soluble removal vinal
Foregoing composite web is integrally sent into water-soluble processing is carried out in ultrasonic sink, it is water-soluble than being 1: 45（Web quality
With the ratio of water quality in tank）, water is changed using overflow, wherein the water temperature of first of ultrasonic sink is 52 DEG C, ultrasonic wave frequency
Rate is 28 kHz, and it is 45% that solution exchange rate in tank is adjusted during overflow, and the water temperature of second ultrasonic sink is 58 DEG C, ultrasound
Wave frequency rate is 40kHz, and it is 25% that solution exchange rate in tank is adjusted during overflow, after two road ultrasonic waves clean molten remove, polyethylene
Alcohol fiber is molten except rate is 99%, and upper and lower layer composite web becomes the single layer web being made up of lowermost fibre cellulose fiber.
5th, dry
The single layer web formed after water-soluble processing is sent into baking oven and carries out drying and processing, the baking penetrated using cylinder hot blast
Dry mode, oven temperature is 135 DEG C, and hot blast penetrates Boiler pressure control in 75000 m3/ h, drying rate is 45m/min.
6th, winding shaping
Single layer web after drying is cut, it is 25.5 g/m that then winding, which turns into grammes per square metre,2, thickness is 45 μm, table
EDS maps have the mask substrate finished product in 25-27 μm of irregular aperture.
It is 24 DEG C to control workshop temperature during processing, and relative humidity control is 65%.
Embodiment 4：
1st, the preparation of lower floor's fibre web
Cellulose fibre is opened by the thick shredding of airflow line feeding opener progress after bag, then passes through mixing, smart shredding, feed
Lower floor's fibre web is formed after cotton, combing, cross lapping and drafting process, wherein cellulose fibre is tencel, and fibre fineness is 1.5D,
Length is 51mm；
2nd, the preparation of upper strata fibre web
From the vinal that water solution temperature is 50 DEG C, fibre fineness is 3D, and length is 51mm, by water-soluble poly second
Enol fiber open after bag by two road shreddings, air-flow feed cotton, it is mixed and disorderly comb after, be directly laid on foregoing lower floor's fibre web and formed
Upper strata fibre web, wherein the technical measures taken have：
A. tight gauge divides by force comb：It is 22mm to adjust the gauge between cylinder and working roll, between cylinder and angle stripper every
Away from for 22mm, the gauge between cylinder and doffer is 10mm, by cylinder and working roll speed than increasing as 16:1, enhancing point comb energy
Power；
B. gently feed beat, appropriate shredding：Two road opener speed are controlled as 700r/min and 900r/min；
C. large speed ratio is shifted soon：Cylinder and the fast ratio of angle stripper are adjusted to 7:1, stripper and worker speed ratio is adjusted to
3:1, meanwhile, cylinder operating rate is down to 820m/min, doffer speed is turned down as 50 m/min, to increase fibre migration rate；
3) spun lacing is reinforced：The composite web one that lowermost fibre cellulose fiber fibre web and upper strata vinal fibre web are constituted
Play feeding high-pressure jet area and carry out spun lacing reinforcing, the spun lacing reinforcing mode being combined using seven road spun lacings, rotary drum and plain net is used
Medium spun lacing pressure, pressure set points are respectively：The road of rotary drum spun lacing area five：Prewet 6bar, 40 bar, 60 bar, 78 bar,
92 bar, the road of plain net spun lacing area two：95 bar, 80 bar, after reinforcing, lowermost fibre cellulose fiber fibre web and upper strata polyvinyl alcohol are fine
Tie up fibre web compound as an entirety.
4th, water-soluble removal vinal
Foregoing composite web is integrally sent into water-soluble processing is carried out in ultrasonic sink, it is water-soluble than being 1: 50（Web quality
With the ratio of water quality in tank）, water is changed using overflow, wherein the water temperature of first of ultrasonic sink is 55 DEG C, ultrasonic wave frequency
Rate is 28 kHz, and it is 50% that solution exchange rate in tank is adjusted during overflow, and the water temperature of second ultrasonic sink is 60 DEG C, ultrasound
Wave frequency rate is 40kHz, and it is 30% that solution exchange rate in tank is adjusted during overflow, after two road ultrasonic waves clean molten remove, polyethylene
Alcohol fiber is molten except rate is 98%, and upper and lower layer composite web becomes the single layer web being made up of lowermost fibre cellulose fiber.
5th, dry
The single layer web formed after water-soluble processing is sent into baking oven and carries out drying and processing, the baking penetrated using cylinder hot blast
Dry mode, oven temperature is 140 DEG C, and hot blast penetrates Boiler pressure control in 80000m3/ h, drying rate is 40m/min.
6th, winding shaping
Single layer web after drying is cut, it is 30.7g/m that then winding, which turns into grammes per square metre,2, thickness is 60 μm, surface
The mask substrate finished product in 27.5-30 μm of irregular aperture is distributed with.
It is 24 DEG C to control workshop temperature during processing, and relative humidity control is 65%.
To water imbibition, pliability, gas permeability, the transparency of the ultra-thin nonwoven mask substrate prepared by above-described embodiment 2-4
It is tested with thickness, its result is as shown in table 1.Method of testing employed in it is as follows：
Gas permeability：
Using YG461D digital textile air permeation volume gauges, method of testing is performed according to GB/T5453-1997 standards.Test
When pressure difference be 60Pa, from nozzle diameter 5mm.
Water imbibition：
Clip size is 100mm × 100mm sample, and the original quality of sample is used as after weighing.Sample is immersed in pure
Underwater,（60± 1）Sample is taken out after s, vertical hanging drips（120± 1）Weighed after s, be used as the sample matter after water suction
Amount, water absorption rate is calculated according to formula：
Water absorption rate（%）=[(quality-sample original quality after sample water suction）/ sample original quality] × 100
Thickness：
Using YG141N type digital textile thickness gauges, tested according to standard FZ/T 60004-91.
Flexibility：
Tested using the crooked test instrument FB2 in KES-F Fabric Style instrument systems, measurement base is used as using bending stiffness
The index of cloth flexibility, bending stiffness is smaller, and base fabric is more soft.Size of sample is 200mm × 200mm.
Transparency：
From DN-B whiteness instrument, using R45777.6, transparency test is transferred in Ry82.6 standard white body calibration zeroing
Shelves, then carry out operation test according to manual testing.
Table 1：The test result of nonwoven mask substrate performance
As it can be seen from table 1 the nonwoven mask substrates that prepare of embodiment 2-4 are in the water imbibition, transparency, flexibility, ventilative
Common mask substrate of the aspect of performance all than selling currently on the market is had outstanding performance, particularly transparency, than common mask substrate
It is higher by by about one time, reason is to employ transparent extraordinary CUP and tencel A100 after water suction；It is real in terms of gas permeability
The gas permeability average value for applying a 2-4 is higher by 90.6% than common mask substrate, mainly vinal is molten remove after in cloth cover
On leave the reasons of many irregular fine pores, cause gas permeability to greatly increase；In addition, in terms of flexibility, embodiment 2-4
Flexibility average value it is lower than common mask substrate by 70.2%, flexibility numerical value is smaller, and base fabric is more soft, the skin with face
Sticking nature is better, it is seen that mask substrate prepared by the preparation method for the nonwoven mask substrate that the present invention is provided is very soft.This hair
Fibre gap and capillary porosity are more in the nonwoven mask substrate of bright preparation, soft and fluffy, frivolous and dangle, and surface has been covered with not
The hole of rule, further increases its water imbibition, gas permeability and moisturizing sticking nature, can arbitrarily use in all case, is beautiful
Hold the preferable base fabric of facial mask, pursuit of the women to fashion of liking to be beautiful has been adapted to completely.
Although above having made to retouch in detail to the present invention with general explanation, embodiment and experiment
State, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, are belonged to claimed
Scope.
Claims (7)
1. a kind of preparation method of nonwoven mask substrate, it is characterised in that methods described includes：
Cellulose fibre is opened after bag, under being formed after thick shredding, mixing, smart shredding, hello cotton, combing, cross lapping, drawing-off
Layer fibre web；
Water-soluble polyvinyl alcohol fibers are opened after bag, after two road shreddings, air-flow feed cotton, mixed and disorderly combing, institute are directly laid in
State on lower floor's fibre web and form upper strata fibre web, the water solution temperature of the water-soluble polyvinyl alcohol fibers is 50 DEG C, and fibre fineness is
1.5-3D, length is 38-51mm, described to open water-soluble polyvinyl alcohol fibers after bag, and cotton, miscellaneous is fed by two road shreddings, air-flow
After disorderly combing, in the step of being directly laid on lower floor's fibre web and form upper strata fibre web, the technical measures taken have：
A. tight gauge divides by force comb：The gauge between cylinder and working roll is adjusted between 18-22mm, the gauge between cylinder and angle stripper
Between 18-22mm, the gauge between cylinder and doffer is between 8-10mm, by cylinder and working roll speed than increasing as 12-16:
1, strengthen carding capacity；B. gently feed beat, appropriate shredding：Two road opener speed are controlled in 600-700r/min respectively and
Between 800-900r/min；C. large speed ratio is shifted soon：Cylinder and the fast ratio of angle stripper are adjusted to 5-7:1, stripper and worker
Fast ratio is adjusted to 2-3:1, meanwhile, cylinder operating rate is down to 700-820m/min, doffer speed is turned down in 40-50 m/min
Between, to increase fibre migration rate；
By lower floor's fibre web and the upper strata fibre web send into together high-pressure jet area carry out spun lacing reinforcing, using seven road spun lacings,
The spun lacing reinforcing mode that rotary drum and plain net are combined, using medium spun lacing pressure, pressure set points are respectively：Rotary drum spun lacing area five
Road：Prewet 4.5-6bar, 30-40 bar, 55-60 bar, 65-78 bar, 88-92 bar, the road of plain net spun lacing area two：90-95
Bar, 70-80 bar, after reinforcing, the water-soluble polyvinyl alcohol fibers in the upper strata fibre web and the fiber in lower floor's fibre web
Cellulose fiber produces mutually entanglement and forms composite web；
The composite web is sent into water-soluble area, dissolves and removes the vinal in the composite web, obtain individual layer
Fibre web；
By the single layer web after drying, winding, cutting process, nonwoven mask substrate is made.
2. according to the method described in claim 1, it is characterised in that described that the composite web is sent into water-soluble area, dissolving is simultaneously
The vinal in the composite web is removed, including：
The composite web is integrally sent into water-soluble processing is carried out in ultrasonic sink, the composite web quality and the ultrasound
The ratio of water quality is 1 in ripple tank:40-50, water is changed using overflow, wherein the water temperature of first of ultrasonic sink is in 50-55
Between DEG C, ultrasonic frequency is 28 kHz, and it is 40-50%, second ultrasonic sink that solution exchange rate in tank is adjusted during overflow
Water temperature between 55-60 DEG C, ultrasonic frequency is 40kHz, during overflow adjust tank in solution exchange rate be 20-30%, dissolving
And remove the vinal in the composite web.
3. method according to claim 2, it is characterised in that the dissolving simultaneously removes the polyethylene in the composite web
After alcohol fiber, in the composite web vinal it is molten except rate between 98-99.5%, the composite web become by
The single layer web of lowermost fibre cellulose fiber composition.
4. method according to claim 2, it is characterised in that described that the single layer web is passed through into drying, winding, cutting
After process, nonwoven mask substrate is made, including：
The single layer web is sent into baking oven and carries out drying and processing, the drying mode penetrated using cylinder hot blast, oven temperature
Between 130-140 DEG C, hot blast penetrates Boiler pressure control in 70000-80000m3Between/h, drying rate is 40-50m/min；
The single layer web after drying is cut, then grammes per square metre is made in 20.5-30.7g/m in winding2Between, thickness exists
Between 30-60 μm, surface distributed has the nonwoven mask substrate in 20-30 μm of irregular aperture.
5. according to any described method of Claims 1-4, it is characterised in that when preparing the nonwoven mask substrate, by workshop
Temperature control is at 22-24 DEG C, and relative humidity is controlled in 60-65%.
6. according to the method described in claim 1, it is characterised in that the cellulose fibre be in tencel, CUP extremely
Few one kind, fibre fineness is 1.0-1.5D, and length is 38-51mm.
7. a kind of nonwoven mask substrate, it is characterised in that the nonwoven mask substrate is by any described side of claim 1 to 6
Method is prepared, and the nonwoven mask substrate is collectively formed by water-soluble polyvinyl alcohol fibers and cellulose fibre.
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| CN108179545B (en) * | 2017-11-22 | 2021-04-06 | 福建福能南纺卫生材料有限公司 | All-cotton spunlaced nonwoven fabric with double layers of diversion layers and preparation method thereof |
| CN108754854A (en) * | 2018-06-12 | 2018-11-06 | 巩义市欧洁源环保技术服务有限公司 | A kind of non-woven mask substrate of environmental-friendly plant fiber and plant fiber facial mask |
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| CN113355801A (en) * | 2020-12-28 | 2021-09-07 | 辽宁中天蚕业科技有限公司 | Silk non-woven fabric production process flow |
| CN113604959A (en) * | 2021-07-07 | 2021-11-05 | 稳健医疗(武汉)有限公司 | Ultrathin spunlace non-woven fabric, preparation method thereof and mask |
| CN114622344B (en) * | 2021-11-04 | 2023-08-25 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in mask |
| CN115182093B (en) * | 2022-07-04 | 2023-07-07 | 宜兴申联机械制造有限公司 | Preparation process of 3D (three-dimensional) spun-laced non-woven fabric for mask base cloth |
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Effective date of registration: 20200927 Address after: 215500, Jiangsu, Suzhou province Changshou City Tong Town, eight character Bridge Village Patentee after: SUZHOU KINGCHARM NEW MATERIALS Corp. Address before: 314001 Yuexiu South Road, Zhejiang, No. 56, No. Patentee before: JIAXING University |