CN106965502B - Disposable Medical bed list 3-layer composite material and preparation method thereof - Google Patents
Disposable Medical bed list 3-layer composite material and preparation method thereof Download PDFInfo
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- CN106965502B CN106965502B CN201710163822.5A CN201710163822A CN106965502B CN 106965502 B CN106965502 B CN 106965502B CN 201710163822 A CN201710163822 A CN 201710163822A CN 106965502 B CN106965502 B CN 106965502B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/26—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
- B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/744—Non-slip, anti-slip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2535/00—Medical equipment, e.g. bandage, prostheses, catheter
Abstract
The present invention provides a kind of disposable Medical bed list 3-layer composite material and preparation method thereof, composite material includes nonwoven layer one, nonwoven layer two and film layer, film layer is arranged between nonwoven layer one and nonwoven layer two, the upper surface of film layer is bonding compound by adhesive layer one and nonwoven layer one, and the lower surface of film layer is bonding compound by adhesive layer two and nonwoven layer two；Nonwoven layer is first is that immersion non-woven fabrics, nonwoven layer is second is that PP non-woven fabrics, film layer is polyethylene film, the grammes per square metre of nonwoven layer one is 1.5~2 times of the grammes per square metre of nonwoven layer two, the grammes per square metre of nonwoven layer one is 1.1~1.5 times of the grammes per square metre of film layer, and the grammes per square metre of nonwoven layer two is 0.6~0.8 times of the grammes per square metre of film layer；The preparation method of composite material includes step：A) the purchasing of raw materials；B) check and accepting storing；C stirring) is got；D) film production；E) film is checked and accepted；F) compound volume production；G) splitting winding；H packaging) is checked and accepted；I) it is put in storage outbound.
Description
Technical field
The invention belongs to medical composite material technical fields, are related to a kind of disposable Medical bed list 3-layer composite material
And preparation method thereof.
Background technique
With the continuous improvement of medical level, prevention and control pay attention to day by day of the hospital for infection risk in operation, doctor
It is singly used widely with paving.The liquid oozed out in operation can be absorbed by paving list, while can be played barrier to bacterium and liquid and be made
With to reduce the pollution in surgical procedure to patient, medical worker and environment.
At present in medical operating, for largely being adopted with Medical bed list used in the big operation of liquid outlet quantity for a long time
It is combined with PE plastic foil and impregnated cloth composite material or spun-bonded non-woven fabrics, antiseep effect is poor, in the use of hospital bed
Because the infiltration of body fluid can pollute hospital bed, and PE film surface is slided compared between hospital bed, is easy displacement.
In combination process, once film itself quality is bad or tension adjustment is bad just cloth cover is be easy to cause to wrinkle,
So the film production of production process, material face tension, flatness are as control stress point.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of disposable Medical bed list is proposed
3-layer composite material solves the problems, such as that antiseep effect difference and skid resistance are poor.
Object of the invention can be realized by the following technical scheme：
Disposable Medical bed list 3-layer composite material, including nonwoven layer one, nonwoven layer two and film layer, film
Layer is arranged between nonwoven layer one and nonwoven layer two, and the upper surface of film layer is viscous with one phase of nonwoven layer by adhesive layer one
Tie compound, the lower surface of film layer is bonding compound by adhesive layer two and nonwoven layer two；Nonwoven layer is first is that dipping nonwoven
Cloth, for nonwoven layer second is that PP non-woven fabrics, film layer are polyethylene films, the grammes per square metre of nonwoven layer one is the grammes per square metre of nonwoven layer two
1.5~2 times, the grammes per square metre of nonwoven layer one is 1.1~1.5 times of the grammes per square metre of film layer, and the grammes per square metre of nonwoven layer two is film layer
0.6~0.8 times of grammes per square metre.
In above-mentioned disposable Medical bed list 3-layer composite material, the grammes per square metre of nonwoven layer one is 26~30gsm,
The grammes per square metre of nonwoven layer two is 15~20gsm, and the grammes per square metre of film layer is 22~25gsm, the gluing of adhesive layer one and adhesive layer two
Total amount is 4~5gsm.
In above-mentioned disposable Medical bed list 3-layer composite material, adhesive layer one and adhesive layer two are used
TEP903 system glue.
It is another object of the present invention to there is the above problem in view of the prior art, propose a kind of disposable medical
The preparation method for spreading single 3-layer composite material, solves the problems, such as the corrugation of compound tense.
Another object of the present invention can be realized by the following technical scheme：
The preparation method of disposable Medical bed list 3-layer composite material, includes the following steps：
A) the purchasing of raw materials：Purchase immersion non-woven fabrics, PP non-woven fabrics, PE particle, color additives, modified additive,
The raw materials such as TEP903 system glue；
B) check and accepting storing：The raw material check and accepting storing that will be purchased；
C stirring) is got：With high-precision electronic claim with 500 kilograms every barrel proportionally weigh PE particle, color additives and
Each raw material is added in vertical heating stirring machine and is stirred by modified additive, and every 500 kilograms of mixings time are greater than 50 points
Clock, temperature is controlled at 40 DEG C, and can only once stir 500 kilograms positive and negative 30 kilograms；
D) film production：Material after stirring is added to the flared crossing casting machine of twin-screw and mixes extrusion, polyethylene is made
Film；
E) film is checked and accepted：It carries out an acceptance inspection to polyethylene film obtained by step D)；
F) compound volume production：Immersion non-woven fabrics, PP non-woven fabrics and polyethylene film are bonded into compound system by composite production device
Finished product is obtained, pressure process parameter is spray gun air pressure 0.2MPa, and main platen pressure is 0.3MPa, and secondary platen pressure is 0.3MPa, is done
0.1 pressure adjustment；Temperature process parameter be 150 ± 5 DEG C of melting basin temperature, 160 ± 5 DEG C of trunnion temperature, spray gun temperature 160 ± 5
DEG C, 160 ± 5 DEG C of hot blast temperature；Other control parameters have spray gun roller gap 50mm, and active unwinding tension is 5-8N, winding
Power is 5-9N；
G) splitting winding；
H packaging) is checked and accepted；
I) it is put in storage outbound.
In the preparation method of above-mentioned disposable Medical bed list 3-layer composite material, the flared crossing casting machine of twin-screw
With flared crossing chill roll, flared crossing chill roll includes roll body, rotary joint one and rotary joint two, and rotary joint one is mounted on
The left end of roll body, rotary joint two are mounted on the right end of roll body, and rotary joint one has feed liquor runner one and out liquid stream road one, into
Liquid stream road one connects inlet tube one, and liquid stream road one connects outlet tube one out, and rotary joint two has feed liquor runner two and out liquid stream
Road two, feed liquor runner two connect inlet tube two, and liquid stream road two connects outlet tube two out；Roll body includes interior roll body, intermediate roll body, outer
Roll body, left end cap and right end cap, intermediate roll body are set on interior roll body, and outer roll body is set on intermediate roll body, a left side for interior roll body
End wears left end cap, and left end cap is sealed on the left end of intermediate roll body and the left end of outer roll body, and rotary joint one is connected with left end cap,
Rotary joint one is arranged and is sealed on the left end of interior roll body；The right end of interior roll body wears right end cap, and right end cap is sealed on intermediate calender rolls
The right end of the right end of body and outer roll body, rotary joint two are connected with right end cap, and rotary joint two is arranged and is sealed on interior roll body
Right end；Intermediate roll body is convexly equipped with retaining ring, and retaining ring is integrally formed the outer wall middle-end in intermediate roll body, and retaining ring is pressed on the interior of outer roll body
Wall middle-end；Cooling duct one is formed between outer roll body and intermediate roll body and cooling duct two, left end cap and right end cap offer
End cap runner, the end cap runner connection cooling duct one of left end cap and out liquid stream road one, the end cap runner of right end cap are connected to cooling
Channel two and out liquid stream road two；Interior roll body is divided into left side roll body and right side roll body, and left side roll body and right roller body by integral forming are simultaneously
It and is in symmetrical structure；The inside of left side roll body has feed pathway one, and the inside of right side roll body has feed pathway two, and rotation connects
First feed liquor runner one is communicated with the feed pathway one of left side roll body；The feed liquor runner two of rotary joint two and right side roll body
Feed pathway two communicates；Spiral channel one and spiral channel two, one He of spiral channel are formed between left side roll body and intermediate roll body
Spiral channel two is interlaced, and feed pathway one extends internally from the left end of left side roll body and is connected with the inner end of spiral channel one
Logical, the outer end of spiral channel one is connected to the outer end of spiral channel two by link slot one, and intermediate roll body offers one and irises out water
Kong Yi, apopore one are adjacent to retaining ring, and the inner end of spiral channel two is communicated with cooling duct one by apopore one；Right side roll body
Spiral channel three and spiral channel four are formed between intermediate roll body, spiral channel three and spiral channel four are interlaced, feed liquor
Channel two extends internally from the right end of right side roll body and is connected with the inner end of spiral channel three, the outer end of spiral channel three and spiral shell
The outer end of rotation water channel four is connected to by link slot two, and intermediate roll body offers one and irises out water hole two, and apopore two is adjacent to retaining ring,
The inner end of spiral channel four is communicated with cooling duct two by apopore two；It is equidistant that the retaining ring two sides of intermediate roll body are welded with multiple groups
The drainage piece group at interval, every group of drainage piece group are made of multiple drainage pieces, and the drainage piece of every group of drainage piece group is radially spaced
It is welded on the outer wall of intermediate roll body, and the position of the drainage piece of two adjacent groups drainage piece group mutually staggers.
In the preparation method of above-mentioned disposable Medical bed list 3-layer composite material, the both ends of outer roll body are respectively embedded
Have thickening set, thicken set and be between the end of outer roll body and the end of intermediate roll body, thicken set outer wall be resisted against it is outer
On the inner wall of roll body, the wall thickness for thickening set is gradually incremented by from inside to outside.
In the preparation method of above-mentioned disposable Medical bed list 3-layer composite material, the inner wall of outer roll body is pasted with
Heat-conducting metal layer one, the inner wall of intermediate roll body are pasted with heat-conducting metal layer two.
Compared with prior art, the present invention has the advantage that：
1, nonwoven layer one plays the role of absorbing liquid body prevention body fluid pervious pollution hospital bed, and nonwoven layer two, which plays, to be used for
Leak fluid once in a while and the anti-skidding effect between hospital bed are absorbed, and by joining the adjustment set to technique, can solve two
The corrugation problem of secondary compound tense, obtained product flatness is good, even tension.
2, the flared crossing chill roll of casting machine is designed as symmetrical two-way feed liquor drainage structure, using from the two of roll body
Hold it is two-way then bidirectionally cooling water is discharged into cooling water, the liquid feeding end and outlet end of cooling water are the same end of roll body,
The same end of roll body feed liquor and liquid out simultaneously, reduce roll body temperature difference between the two ends, realization film uniformly cools down, advantageously accounts for cooling down
The problem that cooling efficiency is low when roller length is too long, inhomogeneous cooling is even, by improve film the quality of production, reduce film with
The corrugation problem occurred when non-woven fabric compounded.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of disposable Medical bed list 3-layer composite material of the invention.
Fig. 2 is the flow chart of the preparation method of disposable Medical bed list 3-layer composite material of the invention.
Fig. 3 is the structural schematic diagram of flared crossing chill roll of the invention.
Fig. 4 is the side view of the intermediate roll body of flared crossing chill roll of the invention.
Fig. 5 is the partial enlarged view in the portion A in Fig. 3.
Fig. 6 is the partial enlarged view in the portion B in Fig. 3.
In figure, 1, rotary joint one；2, rotary joint two；3, feed liquor runner one；4, go out liquid stream road one；5, inlet tube one；
6, outlet tube one；7, feed liquor runner two；8, go out liquid stream road two；9, inlet tube two；10, outlet tube two；11, interior roll body；12, intermediate
Roll body；13, outer roll body；14, left end cap；15, right end cap；16, retaining ring；17, cooling duct one；18, cooling duct two；19, it holds
Lid runner；20, left side roll body；21, right side roll body；22, feed pathway one；23, feed pathway two；24, spiral channel one；25,
Spiral channel two；26, link slot one；27, apopore one；28, spiral channel three；29, spiral channel four；30, link slot two；
31, apopore two；32, drainage piece group；33, drainage piece；34, set is thickeied；35, heat-conducting metal layer one；36, heat-conducting metal layer two；
37, end cap slot；38, stage portion；39, drainage strip one；40, drainage strip two；41, drainage strip three；42, drainage strip four；43, non-woven fabrics
Layer one；44, nonwoven layer two；45, film layer；46, adhesive layer one；47, adhesive layer two.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, the present invention provides a kind of disposable Medical bed list 3-layer composite material, including nonwoven layer
One 43, nonwoven layer 2 44 and film layer 45, film layer 45 are arranged between nonwoven layer 1 and nonwoven layer 2 44, film
The upper surface of layer 45 is bonding compound with nonwoven layer 1 by adhesive layer 1, and the lower surface of film layer 45 passes through adhesive layer
2 47 is bonding compound with nonwoven layer 2 44；Nonwoven layer 1 is immersion non-woven fabrics, and nonwoven layer 2 44 is PP non-woven fabrics,
Film layer 45 is polyethylene film, and the grammes per square metre of nonwoven layer 1 is 1.5~2 times of the grammes per square metre of nonwoven layer 2 44, nonwoven layer
One 43 grammes per square metre is 1.1~1.5 times of the grammes per square metre of film layer 45, and the grammes per square metre of nonwoven layer 2 44 is the grammes per square metre of film layer 45
0.6~0.8 times.
Nonwoven layer 1 plays the role of absorbing liquid prevention body fluid pervious pollution hospital bed, and nonwoven layer 2 44 plays use
In the leak fluid of absorption once in a while and the anti-skidding effect between hospital bed.
Specifically, nonwoven layer 1 is 28gsm immersion non-woven fabrics, and nonwoven layer 2 44 is 17gsm white PP non-woven fabrics,
Film layer 45 is 25gsm blue polyethylene film, and adhesive layer 1 and adhesive layer 2 47 use TEP903 system glue, adhesive layer one
46 and adhesive layer 2 47 gluing total amount be 5gsm.
The main physical parameter of the composite material is grammes per square metre, tensile strength, separation strength, water pressure resistance, water absorbent rate.Gram
The equipment that weight, water absorbent rate test use is the specific gravity balance of the high Inland Steel in Taiwan, the equipment that tensile strength, separation strength use
It is the servo tensile testing machine of the high Inland Steel in Taiwan, and water pressure resistance test is then the novel water-fast pressure tester of full Switzerland's import.
The physical index of above-mentioned composite material is tested, table one is shown the result in：
Table one
As shown in Figures 2 to 6, the present invention also provides a kind of preparations of disposable Medical bed list 3-layer composite material
Method includes the following steps：
A) the purchasing of raw materials：Purchase immersion non-woven fabrics, PP non-woven fabrics, PE particle, color additives, modified additive,
The raw materials such as TEP903 system glue；
B) check and accepting storing：The raw material check and accepting storing that will be purchased；
C stirring) is got：With high-precision electronic claim with 500 kilograms every barrel proportionally weigh PE particle, color additives and
Modified additive, raw material of the component proportion greater than 20% control raw material control of the component ratio less than 20% within positive and negative 100 grams
Each raw material is added in vertical heating stirring machine and is stirred, every 500 kilograms of mixings time are greater than within positive and negative 20 grams by system
50 minutes, temperature was controlled at 40 DEG C, and can only once stir 500 kilograms positive and negative 30 kilograms；
D) film production：Material after stirring is added to the flared crossing casting machine of twin-screw and mixes extrusion, color is added
Agent and common raw material are sufficiently mixed extrusion, and polyethylene film is made；
E) film is checked and accepted：It carries out an acceptance inspection to polyethylene film obtained by step D)；
F) compound volume production：Immersion non-woven fabrics, PP non-woven fabrics and polyethylene film are bonded into compound system by composite production device
Finished product is obtained, pressure process parameter is spray gun air pressure 0.2MPa, and main platen pressure is 0.3MPa, and secondary platen pressure is 0.3MPa, is done
0.1 pressure adjustment；Temperature process parameter be 150 ± 5 DEG C of melting basin temperature, 160 ± 5 DEG C of trunnion temperature, spray gun temperature 160 ± 5
DEG C, 160 ± 5 DEG C of hot blast temperature；Other control parameters have spray gun roller gap 50mm, and active unwinding tension is 5-8N, winding
Power is 5-9N；
G) splitting winding；
H packaging) is checked and accepted；
I) it is put in storage outbound；
It is noted that the flared crossing casting machine of twin-screw have flared crossing chill roll, flared crossing chill roll include roll body,
Rotary joint 1 and rotary joint 22, rotary joint 1 are mounted on the left end of roll body, and rotary joint 22 is mounted on roll body
Right end, when cooling down to film, roll body is in rotary state, and roll body relative rotation connector 1 and rotary joint 22 axially turn
It is dynamic.Rotary joint 1 has feed liquor runner 1 and out liquid stream road 1, and feed liquor runner 1 connects inlet tube 1, out liquid stream road
One 4 connection outlet tubes 1, rotary joint 22 have feed liquor runner 27 and out liquid stream road 28, and feed liquor runner 27 connects feed liquor
Pipe 29, liquid stream road 28 connects outlet tube 2 10 out.The flared crossing chill roll is two-way into cooling using the both ends from roll body
Then water bidirectionally cooling water is discharged, the liquid feeding end and outlet end of cooling water are the same end of roll body, in the same end of roll body
Feed liquor and out liquid simultaneously reduce roll body temperature difference between the two ends, realize that film uniformly cools down, and are conducive to the production matter for improving polyethylene film
Amount, thus reduce polyethylene film and it is non-woven fabric compounded when the corrugation problem that occurs.
Specifically, roll body includes interior roll body 11, intermediate roll body 12, outer roll body 13, left end cap 14 and right end cap 15, intermediate calender rolls
Body 12 is set on interior roll body 11, and outer roll body 13 is set on intermediate roll body 12 and has gap between intermediate roll body 12.
Left end cap 14 is identical with 15 structure of right end cap, the center of left end cap 14 and the center of right end cap 15 offer with it is interior
The axis hole that roll body 11 matches, the left end of interior roll body 11 wear left end cap 14, and left end cap 14 is sealed on the left end of intermediate roll body 12
With the left end of outer roll body 13, left end cap 14 is locked with outer roll body 13 by screw.Rotary joint 1 and 14 flange of left end cap
It is connected, rotary joint 1 is set in the left end of interior roll body 11 and covers its left end.The right end of interior roll body 11 wears right end cap
15, right end cap 15 is sealed on the right end of intermediate roll body 12 and the right end of outer roll body 13, and right end cap 15 and outer roll body 13 pass through screw
Be locked, rotary joint 22 is connected with 15 flange of right end cap, rotary joint 22 be set in the right end of interior roll body 11 and by its
Right end covers.Selectively, left end cap 14 and right end cap 15 offer the end cap slot 37 being recessed inwardly, intermediate roll body 12
Left end is caught in the end cap slot 37 of left end cap 14, and the right end of intermediate roll body 12 is caught in the end cap slot 37 of right end cap 15, to mention
The 15 pairs of stronger cappings of intermediate roll body 12 of high left end cap 14 and right end cap.
Further, intermediate roll body 12 is convexly equipped with retaining ring 16, and retaining ring 16 is integrally formed the outer wall middle-end in intermediate roll body 12,
Retaining ring 16 is pressed on the inner wall middle-end of outer roll body 13；Selectively, the inner wall middle-end of outer roll body 13 offers and 16 size of retaining ring
13 card slot of outer roll body to match, retaining ring 16 snap onto outer 13 card slot of roll body, to reinforce intermediate roll body 12 and outer roll body 13
Attachment force.It is noted that forming cooling duct 1 between outer roll body 13 and intermediate roll body 12 due to the setting of retaining ring 16
With cooling duct 2 18, cooling duct 1 and cooling duct 2 18 are separated by retaining ring 16, and cooling duct 1 is formed in retaining ring
16 left side, cooling duct 2 18 are formed in the right side of retaining ring 16；Cooling duct 1 and cooling duct 2 18 are not communicated with, cooling
Effect is not interfere with each other.Left end cap 14 and right end cap 15 offer end cap runner 19, and the end cap runner 19 of left end cap 14 is connected to cold
But channel 1 and out liquid stream road 1, the end cap runner 19 of right end cap 15 are connected to cooling duct 2 18 and out liquid stream road 28, with
Realize two-way independent cooling.In addition, cooling duct 1 is equal with 2 18 volume of cooling duct, to realize equivalent cooling work
With.
Interior roll body 11 divides for left side roll body 20 and right side roll body 21, left side roll body 20 and right side roll body 21 be integrally formed and
In symmetrical structure, wherein left side roll body 20 is corresponding with cooling duct 1, right side roll body 21 is corresponding with cooling duct 2 18.
Specifically, the inside of left side roll body 20 has feed pathway 1, and the inside of right side roll body 21 has feed pathway 2 23, feed liquor
Channel 1 is not connected to feed pathway 2 23.The entrance of feed pathway 1 stretches to the feed liquor runner 1 of rotary joint 1
It is interior, so that the feed liquor runner 1 of rotary joint 1 is communicated with the feed pathway 1 of left side roll body 20；Feed pathway 2 23
Entrance stretches in the feed liquor runner 27 of rotary joint 22, thus the feed liquor runner 27 of rotary joint 22 and right side roll body 21
Feed pathway 2 23 communicate；The both ends of interior roll body 11 feed liquor simultaneously, realizes the two-way feed liquor of chill roll.
Spiral channel 1 and spiral channel 2 25, spiral channel 1 are formed between left side roll body 20 and intermediate roll body 12
It is interlaced with spiral channel 2 25, feed pathway 1 extend internally from the left end of left side roll body 20 and with spiral channel 1
Inner end be connected, the outer end of spiral channel 1 is connected to the outer end of spiral channel 2 25 by link slot 1, intermediate calender rolls
Body 12 offers one and irises out water hole 1, and apopore 1 is adjacent to retaining ring 16, the inner end and cooling duct of spiral channel 2 25
One 17 are communicated by apopore 1.Spiral channel 3 28 and spiral channel four are formed between right side roll body 21 and intermediate roll body 12
29, spiral channel 3 28 and spiral channel 4 29 are interlaced, and feed pathway 2 23 extends internally from the right end of right side roll body 21
And be connected with the inner end of spiral channel 3 28, the outer end of spiral channel 3 28 and the outer end of spiral channel 4 29 pass through link slot
2 30 connections, intermediate roll body 12 offer one and iris out water hole 2 31, and apopore 2 31 is adjacent to retaining ring 16, spiral channel 4 29
Inner end is communicated with cooling duct 2 18 by apopore 2 31.
After inlet tube 1 and inlet tube 29 are opened simultaneously, the cooling water of inlet tube 1 passes through the feed liquor of rotary joint 1
Runner 1 enters the feed pathway 1 of interior roll body 11 from left end, inwardly flow to spiral channel 1 along feed pathway 1,
The surface for flowing through left side roll body 20 from inside to outside then along spiral channel 1, it is cooling after crossing with spiral channel 2 25
Water enters spiral channel 2 25, and flows through the surface of left side roll body 20 again from outside to inside along spiral channel 2 25, and
It enters in cooling duct 1 from apopore 1, is flowed to the left along cooling duct 1 from the centre of outer roll body 13, passed through
The end cap runner 19 of left end cap 14 and the liquid stream road 1 out of rotary joint 1 are crossed, is discharged from outlet tube 1, responsible pair
The left side of outer roll body 13 is cooled down, and the left side heat of film is taken away.
The cooling water of inlet tube 29 enters the feed liquor of interior roll body 11 by the feed liquor runner 27 of rotary joint 22 from right end
Channel 2 23 inwardly flow to spiral channel 3 28 along feed pathway 2 23, from inside to outside then along spiral channel 3 28
The surface of right side roll body 21 is flowed through, after crossing with spiral channel 4 29, cooling water enters spiral channel 4 29, and along spiral water
Road 4 29 flows through the surface of right side roll body 21 again from outside to inside, and enters cooling duct 2 18 from apopore 2 31
It is interior, it is flowed to the right along cooling duct 2 18 from the centre of outer roll body 13, end cap runner 19 and rotation by right end cap 15
Connector 22 goes out liquid stream road 28, discharges from outlet tube 2 10, the right side for being responsible for external roll body 13 is cooled down, will be thin
The right side heat of film is taken away.Chill roll is along middle-end bilateral symmetry, therefore 13 left side of outer roll body and right side is cold
It is identical.
The inner wall of outer roll body 13 is pasted with heat-conducting metal layer 1, and the inner wall of intermediate roll body 12 is pasted with heat-conducting metal layer two
36.It is noted that film is attached to the surface of outer roll body 13 when chill roll cools down film, chill roll is set
Be calculated as symmetrical two-way feed liquor drainage structure, advantageously account for chill roll length it is too long when cooling efficiency is low, inhomogeneous cooling is even
The problem of, the length of chill roll of the invention can be longer than common chill roll length, and the film suitable for the wider door width of output produces
Product.Cooling water is before flowing into cooling duct 1, the external roll body 13 in cooling duct 2 18 carries out cooling, first in intermediate 12 He of roll body
Spiral reciprocal flowing is carried out between interior roll body 11, increases flowing time of the cooling water inside roll body, cooling water is in spiral
It is to play to intermediate roll body 12 in water channel 1, spiral channel 2 25, spiral channel 3 28 and spiral channel 4 29 when flowing
Cooling effect, cold temperature can be transferred to cooling duct 1 and cooling duct 2 18 by intermediate roll body 12 in advance, make cooling logical
Before not being passed through cooling water, internal temperature first can reduce for road 1 and cooling duct 2 18, i.e., when cooling water also
Between intermediate roll body 12 and interior roll body 11 when helical flow, cooling water is also externally to play indirectly cooling make by roll body 13
With not only increasing the activity ratio of cooling water, and after avoiding cooling water from entering cooling duct 1 and cooling duct 2 18
The outer quenching suddenly of roll body 13, avoids the outer 13 front and back temperature difference of roll body too big, is conducive to that film is presented uniform cooling.
Preferably, spiral channel 1 and spiral channel 2 25 are the recessed helicla flutes on left side roll body 20；Spiral
Water channel 3 28 and spiral channel 4 29 are the recessed helicla flutes on right side roll body 21.
Selectively, the outer wall middle-end of interior roll body 11 has the stage portion 38 of protrusion, left side roll body 20 and right side roll body 21
It is separated by 38 phase of stage portion, stage portion 38 is resisted against the inner wall middle-end of intermediate roll body 12；Spirally winding on left side roll body 20
Have the drainage strip 1 and drainage strip 2 40 of protrusion, drainage strip 1 and drainage strip 2 40 it is of same size.One 39 He of drainage strip
Drainage strip 2 40 is welded on the outer wall of left side roll body 20, and drainage strip 1 and drainage strip 2 40 are resisted against intermediate roll body 12
On inner wall, and define spiral channel 1 and spiral channel 2 25.
The drainage strip 3 41 and drainage strip 4 42 of protrusion, drainage strip 3 41 and drainage are spirally arranged on right side roll body 21
Item 4 42 it is of same size.Drainage strip 3 41 and drainage strip 4 42 are welded on the outer wall of right side roll body 21, drainage strip 3 41
It is resisted against with drainage strip 4 42 on the inner wall of intermediate roll body 12, and defines spiral channel 3 28 and spiral channel 4 29.
Selectively, 16 two sides of retaining ring of intermediate roll body 12 are welded with the drainage piece group 32 of multiple groups equidistant interval, and every group is drawn
Flow group 32 is made of multiple drainage pieces 33, and the drainage piece 33 of every group of drainage piece group 32 is radially spaced and is welded on intermediate roll body
On 12 outer wall, and the position of the drainage piece 33 of two adjacent groups drainage piece group 32 mutually staggers；Cooling water cooling duct 1 again
When with flowing in cooling duct 2 18, drainage piece 33 plays agitaion to cooling water, overcomes laminar flow phenomenon.
In addition, the both ends of outer roll body 13 are respectively embedded with a thickening set 34, the outer diameter and outer roll body 13 of set 34 are thickeied
The internal diameter at both ends matches, and thickeies set 34 and is between the end of outer roll body 13 and the end of intermediate roll body 12, thickeies set
34 outer wall is resisted against on the inner wall of outer roll body 13, and the thickening set 34 of 13 left end of outer roll body passes through fastener with left end cap 14
It is locked, the thickening set 34 of outer 13 right end of roll body is locked with right end cap 15 by fastener；Thicken set 34 wall thickness from
Gradually it is incremented by from inside to outside.The both ends of outer roll body 13 are in non-active area, and the setting for thickening set 34 increases the two of outer roll body 13
Thickness is held, the cooling at external 13 both ends of roll body of cooling water is hindered, avoids the both ends of outer roll body 13 from generating dew condensation phenomenon, is conducive to solve
The influence certainly to condense to film quality.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although rotary joint 1 is used more herein；Rotary joint 22；Feed liquor runner 1；Liquid stream road 1 out；
Inlet tube 1；Outlet tube 1；Feed liquor runner 27；Liquid stream road 28 out；Inlet tube 29；Outlet tube 2 10；Interior roll body 11；In
Between roll body 12；Outer roll body 13；Left end cap 14；Right end cap 15；Retaining ring 16；Cooling duct 1；Cooling duct 2 18；End cap runner
19；Left side roll body 20；Right side roll body 21；Feed pathway 1；Feed pathway 2 23；Spiral channel 1；Spiral channel 2 25；
Link slot 1；Apopore 1；Spiral channel 3 28；Spiral channel 4 29；Link slot 2 30；Apopore 2 31；Drainage piece
Group 32；Drainage piece 33；Thicken set 34；Heat-conducting metal layer 1；Heat-conducting metal layer 2 36；End cap slot 37；Stage portion 38；Drainage strip
One 39；Drainage strip 2 40；Drainage strip 3 41；Drainage strip 4 42；Nonwoven layer 1；Nonwoven layer 2 44；Film layer 45；Gluing
Layer 1；The terms such as adhesive layer 2 47, but it does not exclude the possibility of using other terms.The use of these items is only for
It is more convenient to describe and explain essence of the invention；It is construed as any additional limitation all and is and spirit of that invention
It disagrees.
Claims (3)
1. the preparation method of disposable Medical bed list 3-layer composite material, disposable Medical bed list 3-layer composite material
Including nonwoven layer one, nonwoven layer two and film layer, film layer is arranged between nonwoven layer one and nonwoven layer two, film
The upper surface of layer is bonding compound by adhesive layer one and nonwoven layer one, and the lower surface of film layer passes through adhesive layer two and nonwoven
Layer of cloth two is bonding compound；Nonwoven layer is first is that immersion non-woven fabrics, and nonwoven layer is second is that PP non-woven fabrics, film layer are polyethylene
Film, the grammes per square metre of nonwoven layer one are 1.5~2 times of the grammes per square metre of nonwoven layer two, and the grammes per square metre of nonwoven layer one is gram of film layer
1.1~1.5 times of weight, the grammes per square metre of nonwoven layer two are 0.6~0.8 times of the grammes per square metre of film layer, which is characterized in that including following
Step：
A) the purchasing of raw materials：Purchase immersion non-woven fabrics, PP non-woven fabrics, PE particle, color additives, modified additive, TEP903 system
Glue raw material；
B) check and accepting storing：The raw material check and accepting storing that will be purchased；
C stirring) is got：Claimed proportionally to weigh PE particle, color additives and modification with 500 kilograms every barrel with high-precision electronic
Each raw material is added in vertical heating stirring machine and is stirred by additive, and every 500 kilograms of mixings time are greater than 50 minutes, temperature
Degree control can only once stir 500 kilograms positive and negative 30 kilograms at 40 DEG C；
D) film production：Material after stirring is added to the flared crossing casting machine of twin-screw and mixes extrusion, polyethylene film is made；
E) film is checked and accepted：It carries out an acceptance inspection to polyethylene film obtained by step D)；
F) compound volume production：Immersion non-woven fabrics, PP non-woven fabrics and polyethylene film are bonded into compound be made by composite production device
Product, pressure process parameter are spray gun air pressure 0.2MPa, and main platen pressure is 0.3MPa, and secondary platen pressure is 0.3MPa, do 0.1
Pressure adjustment；Temperature process parameter is 150 ± 5 DEG C of melting basin temperature, 160 ± 5 DEG C of trunnion temperature, 160 ± 5 DEG C of spray gun temperature, hot
160 ± 5 DEG C of air temperature；Other control parameters have spray gun roller gap 50mm, and active unwinding tension is 5-8N, winding tension 5-
9N；
G) splitting winding；
H packaging) is checked and accepted；
I) it is put in storage outbound；
The flared crossing casting machine of twin-screw has flared crossing chill roll, and flared crossing chill roll includes roll body, rotary joint one and rotation
Connector two, rotary joint one are mounted on the left end of roll body, and rotary joint two is mounted on the right end of roll body, rotary joint one have into
Liquid stream road one and out liquid stream road one, feed liquor runner one connect inlet tube one, and liquid stream road one connects outlet tube one, rotary joint two out
With feed liquor runner two and out liquid stream road two, feed liquor runner two connect inlet tube two, and liquid stream road two connects outlet tube two out；Roll body
It is set on interior roll body including interior roll body, intermediate roll body, outer roll body, left end cap and right end cap, intermediate roll body, outer roll body is set in
On intermediate roll body, the left end of interior roll body wears left end cap, and left end cap is sealed on the left end of intermediate roll body and the left end of outer roll body, rotation
Adapter one is connected with left end cap, and rotary joint one is arranged and is sealed on the left end of interior roll body；The right end of interior roll body wears right end
Lid, right end cap are sealed on the right end of intermediate roll body and the right end of outer roll body, and rotary joint two is connected with right end cap, rotary joint two
It is arranged and is sealed on the right end of interior roll body；Intermediate roll body is convexly equipped with retaining ring, and retaining ring is integrally formed the outer wall middle-end in intermediate roll body,
Retaining ring is pressed on the inner wall middle-end of outer roll body；Cooling duct one and cooling duct two are formed between outer roll body and intermediate roll body, it is left
End cap and right end cap offer end cap runner, the end cap runner connection cooling duct one of left end cap and out liquid stream road one, right end
The end cap runner connection cooling duct two of lid and out liquid stream road two；Interior roll body is divided into left side roll body and right side roll body, left side roll body
With right roller body by integral forming and in symmetrical structure；The inside of left side roll body has feed pathway one, the inside of right side roll body
With feed pathway two, the feed liquor runner one of rotary joint one is communicated with the feed pathway one of left side roll body；Rotary joint two
Feed liquor runner two is communicated with the feed pathway two of right side roll body；Spiral channel one and spiral shell are formed between left side roll body and intermediate roll body
Water channel two is revolved, spiral channel one and spiral channel two are interlaced, and feed pathway one extends internally simultaneously from the left end of left side roll body
It is connected with the inner end of spiral channel one, the outer end of spiral channel one is connected to the outer end of spiral channel two by link slot one,
Intermediate roll body offers one and irises out water hole one, and apopore one is adjacent to retaining ring, and the inner end and cooling duct one of spiral channel two are logical
Apopore one is crossed to communicate；Spiral channel three and spiral channel four, three He of spiral channel are formed between right side roll body and intermediate roll body
Spiral channel four is interlaced, and feed pathway two extends internally from the right end of right side roll body and is connected with the inner end of spiral channel three
Logical, the outer end of spiral channel three is connected to the outer end of spiral channel four by link slot two, and intermediate roll body offers one and irises out water
Hole two, apopore two are adjacent to retaining ring, and the inner end of spiral channel four is communicated with cooling duct two by apopore two；Intermediate roll body
Retaining ring two sides be welded with the drainage piece group of multiple groups equidistant interval, every group of drainage piece group is made of multiple drainage pieces, every group of drainage
The drainage piece of piece group is radially spaced on the outer wall for being welded on intermediate roll body, and the position of the drainage piece of two adjacent groups drainage piece group
It sets and mutually staggers.
2. the preparation method of disposable Medical bed list 3-layer composite material according to claim 1, which is characterized in that
The both ends of outer roll body are respectively embedded with a thickening set, thicken set and are between the end of outer roll body and the end of intermediate roll body, add
The outer wall of thickness set is resisted against on the inner wall of outer roll body, and the wall thickness for thickening set is gradually incremented by from inside to outside.
3. the preparation method of disposable Medical bed list 3-layer composite material according to claim 1, which is characterized in that
The inner wall of outer roll body is pasted with heat-conducting metal layer one, and the inner wall of intermediate roll body is pasted with heat-conducting metal layer two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710163822.5A CN106965502B (en) | 2017-03-20 | 2017-03-20 | Disposable Medical bed list 3-layer composite material and preparation method thereof |
| CN201710790063.5A CN107672261B (en) | 2017-03-20 | 2017-03-20 | A kind of preparation method of disposable Medical bed list 3-layer composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710163822.5A CN106965502B (en) | 2017-03-20 | 2017-03-20 | Disposable Medical bed list 3-layer composite material and preparation method thereof |
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| CN201710790063.5A Division CN107672261B (en) | 2017-03-20 | 2017-03-20 | A kind of preparation method of disposable Medical bed list 3-layer composite material |
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| CN201710790063.5A Active CN107672261B (en) | 2017-03-20 | 2017-03-20 | A kind of preparation method of disposable Medical bed list 3-layer composite material |
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| CN109691938A (en) * | 2018-11-30 | 2019-04-30 | 东莞市依科净化材料科技有限公司 | For wiping the preparation method and product of the wiper of hazardous contaminant |
| CN111484713B (en) * | 2020-03-24 | 2022-09-30 | 杭州奥风科技有限公司 | Degradable biomembrane casting machine |
| CN113893383A (en) * | 2021-10-26 | 2022-01-07 | 海宁市美迪康非织造新材料有限公司 | Medical super-absorbent liquid-absorbing water-locking pad material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210145C (en) * | 1999-11-16 | 2005-07-13 | 忠诚股份有限公司 | Intermittently bonded nonwoven disposable surgical laminates |
| CN101883547A (en) * | 2007-11-30 | 2010-11-10 | 3M创新有限公司 | Elastic multilayer body and article using same |
| CN201792548U (en) * | 2010-09-25 | 2011-04-13 | 常州市永明机械制造有限公司 | Cold roll device of lamination unit laminating device |
| CN205112347U (en) * | 2015-10-14 | 2016-03-30 | 重庆天运汽车配件有限公司 | Cooling roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101009702B1 (en) * | 2008-06-13 | 2011-01-19 | 주식회사 삼우에코 | Cooling roller for continuous annealing line |
-
2017
- 2017-03-20 CN CN201710163822.5A patent/CN106965502B/en active Active
- 2017-03-20 CN CN201710790063.5A patent/CN107672261B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210145C (en) * | 1999-11-16 | 2005-07-13 | 忠诚股份有限公司 | Intermittently bonded nonwoven disposable surgical laminates |
| CN101883547A (en) * | 2007-11-30 | 2010-11-10 | 3M创新有限公司 | Elastic multilayer body and article using same |
| CN201792548U (en) * | 2010-09-25 | 2011-04-13 | 常州市永明机械制造有限公司 | Cold roll device of lamination unit laminating device |
| CN205112347U (en) * | 2015-10-14 | 2016-03-30 | 重庆天运汽车配件有限公司 | Cooling roller |
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| CN107672261B (en) | 2018-11-13 |
| CN106965502A (en) | 2017-07-21 |
| CN107672261A (en) | 2018-02-09 |
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