CN110338976A - A kind of super soft efficient absorption core of air-laid process manufacture - Google Patents
A kind of super soft efficient absorption core of air-laid process manufacture Download PDFInfo
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- CN110338976A CN110338976A CN201910624288.2A CN201910624288A CN110338976A CN 110338976 A CN110338976 A CN 110338976A CN 201910624288 A CN201910624288 A CN 201910624288A CN 110338976 A CN110338976 A CN 110338976A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15642—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers or pads of fibrous material on single sheets or webs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15934—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven
- A61F2013/15943—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven by air-laid technique
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- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
A kind of super soft efficient absorption core of air-laid process manufacture, the absorptive core is layer structure, it is characterized in that layered structure successively includes: first layer, the bottom lining layer formed by toilet paper, wherein the quality of bottom lining layer accounts for the 8%~18% of the absorptive core gross mass；The second layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping hydroscopic high-molecular resin (SAP) on the first layer；Third layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping hydroscopic high-molecular resin (SAP) on the second layer；4th layer, air forming and vacuum suction technique are mated formation in the cellulose fibre and optional polymeric absorbent resin (SAP) of third layer；Apply lotion in the 4th layer surface, the applied amount of lotion is the 3-6% of absorptive core gross mass.
Description
Technical field
The invention belongs to airlaid dry pulp technology for making paper, further relate to a kind of production method of non-woven cloth.
Background technique
Different from wet papermaking technology, absorptive core (also having referred to as extruding core material) is to be with several millimeters of long wood pulp celluloses
Primary raw material produces a kind of new method of non-woven cloth, hereinafter referred to as absorptive core by air lay and different consolidation methods.It should
Technology can also mix water absorbing polymer particle and other stock dispersions to quickly flowing using superbhort fiber as primary raw material
In air-flow, and be laid in the material mixed on the mesh belt of operation by means of modes such as vacuum or pressure, by emulsion adhesive,
Heat bonding or the combination of these types of bonding mode carry out being bonded into paper.It is soft that this technology can produce various different-thickness, difference
The material of softness, different absorbencys.Its product is mainly used for that women sanitary articles, adult-incontinence articles etc. are disposable disposable to be defended
Raw articles, also can be used for wet tissue, cloth for wiping or dusting, food pad, moisturizing (such as facial mask), pet pads and filtering material etc..
Absorbent core is a kind of important component of disposable disposable amenities.The manufacturer produced now
Absorbent core of the absorptive core for typically directly using airlaid dry to manufacture as product, uses it to capture and keeps urinating
Liquid or other body fluid, and then simplify production technology, improve production capacity and efficiency.
The Chinese patent CN2012105239411 of applicant's earlier application disclose a kind of multiple groups press polish processing for liquid
The slim dust-free paper that body absorbs, the dust-free paper provided can be used as the core material of disposable disposable amenities, but material is soft
Softness is lacking.
It was found that high-selenium corn, ultra-thin, super soft three characteristics are set in actual absorptive core product in practical study
Timing mutually restricts, and to accommodate SAP with water absorbing properties and cellulose fibre is absorptive core energy with certain thickness
The basis of enough imbibitions, as described in CN2012105239411, lotion, which is added, will lead to the decline of absorptive core absorbability, but this article
It is also not satisfactory to offer the technical solution of middle offer its pliability, therefore how in existing product formula and production technology basis
On, a kind of high-selenium corn is provided by optimization of C/C composites and manufacturing process, ultra-thin, super soft absorptive core becomes in the prior art
Urgent problem to be solved.
Summary of the invention
To solve foregoing problems, the present invention produces a kind of structure novel by air laid processes, and high-selenium corn is ultra-thin,
The efficient absorption core of super soft disposable sanitary articles.The product by hygienic lining paper as bottom liner, with air-laid process
The polymeric absorbent core of production is combined online.Specifically, the product is by being arranged successively and each layer laminated together
It constitutes, first layer is toilet paper bottom liner；The second layer and third layer are the fibers mated formation by air forming and vacuum suction technique
Cellulose fiber and hydroscopic high-molecular resin (SAP) composition, the 4th layer of cellulose fiber mated formation for air forming with vacuum suction technique
It ties up and applies lotion on the layer, wherein each interlayer can be interconnected.The absorptive core is designed and manufactured because of its unique structure
Technique has high-selenium corn, ultra-thin, super soft feature.
To achieve the above object, the present invention use the specific technical proposal is: providing a kind of manufacture of air-laid process
Super soft efficient absorption core, the absorptive core are layer structure, and layered structure successively includes:
First layer, the bottom lining layer formed by toilet paper, wherein the quality of bottom lining layer account for the absorptive core gross mass 8%~
15%；
The second layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping macromolecule water uptake tree on the first layer
Rouge (SAP), the second layer can account for the 30-40% of absorptive core gross mass with first layer fluid connection, the quality of the second layer；The
Cellulose fibre in two layers accounts for about the 18-25% of absorptive core gross mass, and it is total that hydroscopic high-molecular resin (SAP) accounts for absorptive core
The 10-16% of quality.
Third layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping macromolecule water uptake tree on the second layer
Rouge (SAP), the second layer can account for the 25-35% of absorptive core gross mass with other layers of fluid connection, the quality of third layer；Third layer
In cellulose fibre account for about the 15-22% of absorptive core gross mass, hydroscopic high-molecular resin (SAP) accounts for about the total matter of absorptive core
The 10-16% of amount.
4th layer, air forming and vacuum suction technique are mated formation in the cellulose fibre of third layer and the suction of optional macromolecule
It receives resin (SAP), described 4th layer can account for the 18- of absorptive core gross mass with other layers of fluid connection, the 4th layer of quality
25%；The content of cellulose fibre accounts for the 10-20% of absorptive core gross mass in 4th layer, polymeric absorbent resin (SAP)
It is 0~5% that content, which accounts for absorptive core gross mass,；Apply lotion in the 4th layer surface, the applied amount of lotion is the total matter of absorptive core
The 3-6% of amount.
A kind of super soft efficient absorption core of the air-laid process manufacture, further, the quality of bottom lining layer
The 10%~15% of the absorptive core gross mass is accounted for, the quality of the second layer accounts for the 32-37% of absorptive core gross mass；In the second layer
Cellulose fibre account for about the 20-23% of absorptive core gross mass, hydroscopic high-molecular resin (SAP) accounts for absorptive core gross mass
11-14%；The quality of third layer accounts for the 27-33% of absorptive core gross mass, and cellulose fibre accounts for about absorptive core gross mass
16-21%, hydroscopic high-molecular resin (SAP) account for about the 11-14% of absorptive core gross mass；4th layer of quality accounts for absorptive core
The 20~25% of gross mass, cellulose fibre contain the 15-20% for accounting for absorptive core gross mass, and hydroscopic high-molecular resin accounts for absorbent cores
The 0~2% of body gross mass, the applied amount of lotion are the 4~5% of absorptive core gross mass.
A kind of super soft efficient absorption core of air-laid process manufacture does not contain in the 4th layer further
Hydroscopic high-molecular resin (SAP).
The cellulose fibre is selected from by processing or untreated Time of Fluff Slurry, softwood pulp, hardwood pulp, grass
The fiber and its mixture that slurry, chemical pulp, chemi-mechanical pulp, heat engine are starched, length is about 2-5mm, and has a variety of shapes
State.
It is fine that the hydroscopic high-molecular resin (SAP) is selected from polyacrylate, starch graft copolymer, the carboxymethyl of crosslinking
Tie up plain derivative, sapond ester-vinyl based copolymer, the cross-linking polyvinyl alcohol of modification, the crosslinked polypropylene that has neutralized
Olefin(e) acid, crosslinked salt polyacrylate, the Starch-Acrylontirile Graft Copolymer hydrolyzed etc., preferably polypropylene ester, more preferable LG chemistry
GS301 or Japanese catalyst L521.
The lotion is selected from vinylacetate-ethylene type lotion, acrylic emulsion, styrene-butadiene type cream
Liquid, styrene butadiene-acrylic emulsions or polyvinyl alcohol and its mixture, preferably vinylacetate-ethylene type lotion,
192 lotion of more preferable Vinnapas.
A kind of super soft efficient absorption core of the air-laid process manufacture, further, the absorptive core
It adopts and is manufactured by the following method:
It is taken out first at 15~40 DEG C of temperature and 50~80% relative humidities using air forming and vacuum
Absorbing method is successively in the formation second layer, third layer and the 4th layer on the bottom lining layer of first layer, using pre- hot pressing, knurling rolls first
Apply lotion then at the 4th layer surface after secondary press polish processing；Drying solidifies, at second of press polish of smooth roll after applying lotion
Reason；Be absorbed after water spray processing, drying and processing core again.
The temperature of pre- hot-pressing processing is 60~120 DEG C, and pressure is 15~45N/mm line pressure.
The temperature of first time press polish processing is 90~150 DEG C, and pressure is 60~90N/mm line pressure.
The temperature of second of press polish processing is 90~120 DEG C, and pressure limit is in 5-45N/mm, preferably 10-30N/mm.
A kind of super soft efficient absorption core of the air-laid process manufacture, further, quantification range 80-
130g/m2, preferably 90~120g/m2, thickness is not higher than 1.0mm, and flexibility index is no more than 25mNcm.
Air-laid absorbent cores of the present invention have structure novel in structure, and high-selenium corn is ultra-thin, super soft
The characteristics of；The big feature of existing conventional liq absorptive core absorbent is maintained, only applies lotion but not in the 4th layer surface
Bicomponent fibre is added, avoids because bicomponent fibre binding effect bring is to water absorbing polymer particle (SAP) imbibition effect
Negative effect, while the flexibility of product is substantially increased, by the raw material proportioning and manufacturing process of preferred each layer, both can guarantee
The smooth and flexibility of absorptive core, and do not lose the absorbent properties of product, to meet final mass requirement.In absorptive core
In manufacture craft, by carrying out first time press polish processing with knurling rolls, assign product strength and density gradient, absorbed with to increase and
Diffusion effect；Again by carrying out second of press polish processing with smooth roll, and the pressure of second of press polish processing is controlled, to guarantee material
Smooth and flexibility, and do not lose the absorbent properties of product, reach and finally use quality requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of super soft efficient absorption core provided by the invention；
Fig. 2 is the manufacturing process equipment schematic diagram of super soft efficient absorption core provided by the invention；
In Fig. 1: A, first layer, B, the second layer, C, third layer, D, the 4th layer, E, the 4th layer surface application lotion；
In Fig. 2: 1, uncoiling machine, 2, two formable layer heads, 3, three formable layer heads, 4, four formable layer heads, 5, hot pony press, 7, pressure
Flower roll, 8, glue spraying head, the 9, first drying box, 10, smooth roll, 11, fountain head, the 12, first baking oven, the 13, second baking oven, 14, roll paper
Machine, 15, mesh belt continuous conveyor.
Specific embodiment
Below, the present invention will enumerate specific embodiment and be described in more detail to method of the invention, feature and advantage, but
The range being not intended to limit the invention, the scope of the present invention should only be limited by the claims included below.
The production equipment of absorptive core provided by the invention uses the horizontal screen of (Moller&Jochunsen (M&J) company)
Net formula forming technique equipment, production procedure and device structure schematic diagram as shown in Figure 1,
The production equipment of absorptive core provided by the invention includes uncoiling machine 1, mesh belt continuous conveyor 15, two formable layer heads
2, three formable layer heads 3, four formable layer heads 4, hot pony press 5, knurling rolls 7, glue spraying head 8, the first drying box 9, smooth roll 10, fountain head
11, the first baking oven 12, the second baking oven 13, reel machine 14,
The uncoiling machine is used for toilet paper bottom liner roll transfer to shaping area, and the shaping area is along the bottom liner coiled material side of moving
To successively installing two formable layer heads 2, three formable layer heads 3, four formable layer heads 4, hot pony press 5, knurling rolls 7, glue spraying head 8, first
Drying box 9, smooth roll 10, fountain head 11, the first baking oven 12 and the second baking oven 13；The wired belt conveyer is used for close to uncoiling machine
The bottom liner coiled material that uncoiling machine transfers out persistently is conveyed in shaping area, the reel machine 14 is located at for that will make in shaping area
The absorptive core for making to complete is wound into a roll；The two formable layers head 2, three formable layer heads 3, four formable layer heads 4 are located at mesh-belt conveying
Above the transporting flat of machine；
The production technology for absorbing core material are as follows:
1) first by the toilet paper bottom liner coiled material free end on uncoiling machine behind shaping area on reel machine, starting is moved back
Volume machine, reel machine and mesh belt continuous conveyor,
2) after stable, by cellulose fibre, hydroscopic high-molecular resin (SAP) uniformly mixes in a formable layer head 2
It closes, is acted on by air forming and vacuum suction, making the mixture by a formable layer head, uniform shakedown is fallen in as first
The second layer is formed on the toilet paper bottom lining layer of layer material；
3) hydroscopic high-molecular resin (SAP) and cellulose fibre are uniformly mixed in two formable layer heads, by air-flow at
Type and vacuum suction paving fall on second layer upper surface and form third layer；
4) by polymer absorbent material that cellulose fiber peacekeeping is optionally added by uniformly being mixed in four formable layer heads
Merga pass air forming and vacuum suction effect paving fall in third layer upper surface and form the 4th layer；
5) composite material that step 4) is formed continues conveying by the hot precompressed of hot pony press progress to form core；Core after
The continuous knurling rolls that are transported to carry out first time press polish processing (hot pressing is compound),
6) glue spraying head will be passed through by the core of knurling rolls, and will be sent to the after the 4th layer surface applies lotion by glue spraying head
In one drying box, dry solidification is completed in traveling process in the first drying box；Out after the first drying box through entrance smooth roll into
Second of press polish of row handles (secondary hot pressing)；It is continued on to by the core that press polish is handled and carries out water spray processing at fountain head,
The core for completing water spray passes sequentially through the first baking oven and the second baking oven, dries and realizes the final curing of lotion in an oven, obtain
To finished product core, the finished product core of the second baking oven conveys a distance again to be wound in rolls after cooling by reel machine 14 out.
Can be of different size on demand, finished product core is cut with cutting machine.
Two formable layer heads, three formable layer heads, four formable layer heads are all made of the water of (Moller&Jochunsen (M&J) company)
Flat screen mesh type moulded head.
Working condition is as follows: 25 DEG C~35 DEG C of temperature, relative humidity 50%~80%
The temperature of pre- hot-pressing processing is 60~120 DEG C, and pressure is 15~45N/mm line pressure.
The temperature of first time press polish processing is 90~150 DEG C, and pressure is 60~90N/mm line pressure.
The temperature of second of press polish processing is 90~120 DEG C, and pressure limit is 10-30N/mm line pressure.
Product test method:
1. thickness (EDANA30.5-99)
Thickness: between two measurement plates, the distance measured at certain pressure (0.5kPa), unit mm.
Test equipment: digital display type Thickness measuring instrument.
It is sampled according to the requirement of different product, cuts sample, plate edge is not on the edge and instrument of the specimen size of test
Less than 5mm；It is required that in constant temperature and humidity (23 2 DEG C of scholars；50% scholar 5% of relative humidity) under conditions of, balance sample at least 4 hours with
On.It can not be balanced if it is on-line real-time measuremen, but temperature and humidity at that time should be recorded while measuring,
Comparison for reference.
Quantitative 2. (EDANA40.3-90)
Quantitative: the quality of unit area is quantitative (grammes per square metre) of sample, unit g/m2。
Determining instrument: electronic balance (is accurate to 0.001 gram), and balance, which is externally provided with screen, prevents air-flow and other disturbing factors
Influence to balance.
Sample is required in constant temperature and humidity (23 2 DEG C of scholars；50% scholar 5% of relative humidity) under conditions of, balance sample at least 4 is small
When more than.If it is on-line real-time measuremen, can not balance, but should record while measuring temperature at that time with
Humidity, comparison for reference.
Measurement sample is placed on balance, after the stable reading of balance, records weight, in grams.
Quantitative (also known as grammes per square metre) (GSM)=A/B
Wherein: GSM --- quantitative (grammes per square metre) of sample；
The weight of A --- sample；
The area of B --- sample.
3. tensile strength (EDANA20.2-89)
Tensile strength: the sample of predetermined size is by constant rate of extension to tension required when being broken.
Determining instrument: Zwick2.5 strength tester
Sample is cut into the size of 200mm × 25.4mm, it is desirable that in constant temperature and humidity (23 2 DEG C of scholars；50 scholar 5% of relative humidity)
Under conditions of, it balances sample at least 4 hours or more, if it is on-line real-time measuremen, can not balance, but measuring
Temperature and humidity at that time, comparison for reference should be write down simultaneously.
According to following test parameter set test program: maximum measuring range 100N, test speed 254mm/min, folder away from
51mm clamps 5bar
4. liquid absorption and holding capacity (EDANA10.4-02)
Sample: being impregnated 10 minutes after a certain period of time by liquid absorption capacity in a liquid, and the increased percentage of total weight is
For the absorbability of sample.
Liquid keeps outlet capacity: sample being impregnated after ten minutes in a liquid, then is placed in a reservoir 2 minutes, then will
Weight is that the enamel code of 1976g is carefully placed on sample, and the increased percentage of weight is the water holding capacity of sample.
5. flexibility, with stiffness, i.e. flexural rigidity is measured, when the sample of unit width bends to fixed angle because of its self weight
The variation of curvature, specific measurement method such as (EDANA50.2-02)
Stiffness tester: containing experiment porch, and platform need to be coated with or cover polytetrafluoroethylene (PTFE), and side bevels are 41.5 °；Single side
Glue slide rule,
Wide 25mm, long 255mm, weight 40g.(such as following figure)
Sample requirement:
Specimen size: (25 ± 1) mm × (250 ± 1) mm；Sample quantities: 6；Sample is required in constant temperature and humidity (23 ± 2
℃；Relative humidity 50 ± 5%) under conditions of, balance 4 hours or more.
Testing procedure
Single sample is lain on platform, pushes down sample with the ruler of one side glue, the scale on sample one end and platform
Zero point alignment.Ruler is elapsed forward along scale direction, and sample, because its self weight is sagging, continues passage until sample in moving process
The other end close on the groove of platform side；It stops 10 seconds, observes and adjust so that sample end and the position of lateral grooves are answered
It approaches but is not attached to, record rod reading C at this time；After completing the above measurement, it should also be measured again from the other end of sample,
Method is same as above.
As a result it calculates
S=(AvgC/2) 3 × GSM × 10-3
Wherein S: sample stiffness (mNcm)
AvgC: after the average value of sample overhang length, i.e. sample have carried out the measurement on both ends two sides, be obtained C1, C2,
C3、
C4 tetra- values, calculate its average value.(cm)
GSM: the quantitative (g/m of sample2)
Embodiment 1-1:
Total quantification of 100g/m of the present embodiment absorptive core to be described2, thickness is about 0.75mm, specific raw material and
Structure is as follows: cellulose fibre, hydroscopic high-molecular resin (SAP), lotion and toilet paper composition.Cellulose fibre using
Weyerhauser NB416, fiber are about 2-5mm；Used hydroscopic high-molecular resin (SAP) is the L521 of Japanese catalyst；
Lotion is the Vinnapas 192 of Wacker production；Toilet paper bottom lining layer is 13 grams of water suction lining papers of Shanghai east hat.
Percentage of weight formula in the absorptive core is as follows: cellulose fibre 55%, hydroscopic high-molecular resin (SAP)
It is 27%, lotion 5%, toilet paper bottom lining layer is 13%.Structure includes four layers, and it is always quantitative that the quantifying of first layer accounts for about product
13%, the quantifying of the second layer accounts for about always quantitative 36.2% of product, and the quantifying of third layer accounts for about always quantitative 29.7% of product, and
Four layers quantitatively account for about product it is always quantitative 21.1%.The distribution of each component in layers is as shown in following table.
| Toilet paper | Cellulose fibre | Hydroscopic high-molecular resin (SAP) | Lotion | |
| First layer | 13% | 0% | 0% | 0% |
| The second layer | 0% | 22.7% | 13.5% | 0% |
| Third layer | 0% | 16.2% | 13.5% | 0% |
| 4th layer | 0% | 16.1% | 0% | 5% |
Embodiment 1-2 quantifies 90g/m2
Raw material and working condition are the same as embodiment 1, the distribution of each component in layers such as following table
| Toilet paper | Cellulose fibre | Hydroscopic high-molecular resin (SAP) | Lotion | |
| First layer | 14.4% | 0% | 0% | 0% |
| The second layer | 0% | 20% | 12% | 0% |
| Third layer | 0% | 21% | 12% | 0% |
| 4th layer | 0% | 16.6% | 0% | 4% |
Embodiment 1-3 quantifies 110g/m2
Raw material and working condition are the same as embodiment 1, the distribution of each component in layers such as following table
The distribution of 1 each component of table in layers
| Toilet paper | Cellulose fibre | Hydroscopic high-molecular resin (SAP) | Lotion | |
| First layer | 11.8% | 0% | 0% | 0% |
| The second layer | 0% | 23% | 14% | 0% |
| Third layer | 0% | 16% | 11% | 0% |
| 4th layer | 0% | 18.2% | 1% | 5% |
Embodiment 1-4 quantifies 130g/m2
Raw material and working condition are the same as embodiment 1, the distribution of each component in layers such as following table
The distribution of 1 each component of table in layers
| Toilet paper | Cellulose fibre | Hydroscopic high-molecular resin (SAP) | Lotion | |
| First layer | 10% | 0% | 0% | 0% |
| The second layer | 0% | 23% | 12% | 0% |
| Third layer | 0% | 18% | 13% | 0% |
| 4th layer | 0% | 17% | 2% | 5% |
The product that embodiment 1-1~embodiment 1-4 is obtained and the performance detection comparative situation of commercially available contrast product are seen below
Table
It is being absorbed by comparative illustration product of the present invention, is there is bright advantage on thickness and flexibility.
Although the present invention is revealed as above with preferred embodiment, however, it is not to limit the invention, Ren Heben
Field those skilled in the art, in without departing substantially from the spirit and scope of the present invention, made change and modification should belong to this
Within the protection scope of invention.
Claims (9)
1. a kind of super soft efficient absorption core of air-laid process manufacture, the absorptive core is layer structure, special
Sign is that layered structure successively includes:
First layer, the bottom lining layer formed by toilet paper, wherein the quality of bottom lining layer account for the absorptive core gross mass 8%~
18%；
The second layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping hydroscopic high-molecular resin on the first layer
(SAP), the second layer can account for the 30-40% of absorptive core gross mass with first layer fluid connection, the quality of the second layer；Second
Cellulose fibre in layer accounts for about the 18-25% of absorptive core gross mass, and hydroscopic high-molecular resin (SAP) accounts for the total matter of absorptive core
The 10-16% of amount；
Third layer, air forming and vacuum suction technique are mated formation cellulose fiber peacekeeping hydroscopic high-molecular resin on the second layer
(SAP), the second layer can account for the 25-35% of absorptive core gross mass with other layers of fluid connection, the quality of third layer；In third layer
Cellulose fibre account for about the 15-22% of absorptive core gross mass, hydroscopic high-molecular resin (SAP) accounts for about absorptive core gross mass
10-16%；
4th layer, air forming and vacuum suction technique are mated formation cellulose fibre and optional polymeric absorbent tree in third layer
Rouge (SAP), described 4th layer can account for the 18-25% of absorptive core gross mass with other layers of fluid connection, the 4th layer of quality；The
The content of cellulose fibre accounts for the 10-20% of absorptive core gross mass in four layers, and the content of polymeric absorbent resin (SAP) accounts for suction
Receiving core gross mass is 0~5%；Apply lotion in the 4th layer surface, the applied amount of lotion is the 3- of absorptive core gross mass
6%.
2. a kind of super soft efficient absorption core of air-laid process manufacture as described in claim 1, further, bottom liner
The quality of layer accounts for the 10%~15% of the absorptive core gross mass, and the quality of the second layer accounts for the 32-37% of absorptive core gross mass；
Cellulose fibre in the second layer accounts for about the 20-23% of absorptive core gross mass, and hydroscopic high-molecular resin (SAP) accounts for absorptive core
The 11-14% of gross mass；The quality of third layer accounts for the 27-33% of absorptive core gross mass, and cellulose fibre accounts for about absorptive core
The 16-21% of gross mass, hydroscopic high-molecular resin (SAP) account for about the 11-14% of absorptive core gross mass；4th layer of quality accounts for
The 20~25% of absorptive core gross mass, cellulose fibre contain the 15-20% for accounting for absorptive core gross mass, hydroscopic high-molecular resin
The 0~2% of absorptive core gross mass is accounted for, the applied amount of lotion is the 4~5% of absorptive core gross mass.
3. a kind of super soft efficient absorption core of air-laid process manufacture as claimed in claim 1 or 2, it is characterized in that the 4th
Hydroscopic high-molecular resin (SAP) is not contained in layer.
4. a kind of super soft efficient absorption core of air-laid process manufacture as described in claims 1 or 2 is any, it is characterized in that
The cellulose fibre is selected from by processing or untreated Time of Fluff Slurry, softwood pulp, hardwood pulp, straw pulp, chemistry
The fiber and its mixture that slurry, chemi-mechanical pulp, heat engine are starched, length is about 2-5mm, and has variform；
The hydroscopic high-molecular resin (SAP) be selected from polyacrylate, starch graft copolymer, crosslinking carboxymethyl cellulose
Derivative, sapond ester-vinyl based copolymer, modification cross-linking polyvinyl alcohol, neutralized cross linked polyacrylate,
Crosslinked salt polyacrylate, the Starch-Acrylontirile Graft Copolymer hydrolyzed etc.；
The lotion is selected from vinylacetate-ethylene type lotion, acrylic emulsion, styrene-butadiene type lotion, benzene
Ethylene-butylene-acrylic emulsions or polyvinyl alcohol and its mixture.
5. a kind of super soft efficient absorption core of air-laid process manufacture as claimed in claim 4, it is characterized in that macromolecule
Water-absorbing resin (SAP) preferably polypropylene ester, the preferred vinylacetate of the lotion-ethylene type lotion.
6. the super soft efficient absorption core that a kind of air-laid process as described in Claims 1 to 5 is any manufactures, feature
Be quantification range be 80-130g/m2, thickness is not higher than 1.0mm.
7. a kind of super soft efficient absorption core of air-laid process manufacture as claimed in claim 6, it is characterized in that quantitative model
Enclose preferably 90~120g/m2。
8. the super soft efficient absorption core that a kind of air-laid process as described in claim 1~7 is any manufactures, feature
It is that the absorptive core is adopted and is manufactured by the following method:
Using air forming and vacuum suction side first at 15~40 DEG C of temperature and 50~80% relative humidities
Method successively in the formation second layer, third layer and the 4th layer on the bottom lining layer of first layer, is pressed for the first time using pre- hot pressing, knurling rolls
Apply lotion then at the 4th layer surface after light processing；Drying solidification, second of press polish of smooth roll processing after application lotion；Again
Be absorbed core after water spray processing, drying and processing；The temperature of pre- hot-pressing processing is 60~120 DEG C, and pressure is 15~45N/
Mm line pressure；The temperature of first time press polish processing is 90~150 DEG C, and pressure is 60~90N/mm line pressure；At second of press polish
The temperature of reason is 90~120 DEG C, and pressure limit is in 5-45N/mm.
9. the super soft efficient absorption core of a kind of air-laid process manufacture as claimed in claim 8, it is characterized in that second
The pressure limit of secondary press polish processing is preferably 10-30N/mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115429542A (en) * | 2021-06-03 | 2022-12-06 | 北京倍舒特妇幼用品有限公司 | Gradually-sucking incontinence pad and preparation method and application thereof |
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Application publication date: 20191018 |