CN110509643A - PE temperature difference film and the medical top bag for using the PE temperature difference film preparation - Google Patents

PE temperature difference film and the medical top bag for using the PE temperature difference film preparation Download PDF

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Publication number
CN110509643A
CN110509643A CN201910797960.8A CN201910797960A CN110509643A CN 110509643 A CN110509643 A CN 110509643A CN 201910797960 A CN201910797960 A CN 201910797960A CN 110509643 A CN110509643 A CN 110509643A
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China
Prior art keywords
temperature difference
area
bag body
layer
difference film
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Granted
Application number
CN201910797960.8A
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Chinese (zh)
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CN110509643B (en
Inventor
俞晓康
郑飞
沈建青
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Zhejiang Desheng New Materials Technology Co.,Ltd.
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Hangzhou Zhongcheng Plastic Packaging Co Ltd
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Priority to CN201910797960.8A priority Critical patent/CN110509643B/en
Publication of CN110509643A publication Critical patent/CN110509643A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
    • A61B42/40Packages or dispensers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/00051Accessories for dressings
    • A61F13/00072Packaging of dressings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0017Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • B32B27/08Layered 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 of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention discloses PE temperature difference film and using the medical top bag of the PE temperature difference film preparation, it is made of outer layer, support middle layer, internal layer, outer layer is 15-20 DEG C higher than internal layer tolerable temperature, the PE temperature difference film thickness is 60-90 μm, outer layer thickness accounts for the 27-30% of film thickness, support intima-media thickness accounts for the 36-40% of film thickness, and internal layer thickness accounts for the 27-30% of film thickness.Top bag includes defending strong paster using the upper bag body and lower bag body, spy of PE temperature difference film preparation, bridging arrangement is realized by banding after upper bag body and the alignment of lower bag body two sides and bottom end, spy defends strong paster and passes through banding and the connection of underseal realization and upper bag body and lower bag body.There are 15-20 DEG C of the temperature difference between this temperature difference film ectonexine, it is ensured that the flatness of banding and the fastness of banding;Using the top bag of the temperature difference film preparation, realize that, without paper scrap fibre shedding when spy defends strong paster glass, glue-line transfer uniformly, meets the requirement being safely opened.

Description

PE temperature difference film and the medical top bag for using the PE temperature difference film preparation
Technical field
The invention belongs to field of packaging material, and in particular to PE temperature difference film and medical using the PE temperature difference film preparation Come directly towards bag.
Background technique
What plastic flexible packaging material generally referred to be made of plastics or plastic composite, it is usually soft, it can pass through The modes such as bag making, package realize the packaging to commodity, and the temperature difference of existing temperature difference film, ectonexine tolerance is smaller, therefore, in heat During envelope, it is easy to occur heat-sealing temperature it is high when, sealing part deformation and flatness it is poor, when heat-sealing temperature is low, although sealing It is smooth, but easily occur loosely with empty Feng Xianxiang, therefore, a kind of temperature difference film of the big temperature difference of R & D design, to improve bag making mistake The flatness and firmness sealed in journey very it is necessary to.
Top bag is used for the packaging of medical product, such as the packaging of medical gloves, hemostatic gauze, operating coat protective garment On, existing top bag, the removing mouth being safely opened, which generallys use spy, to be defended strong material and hotly joins with bag body, and existing top Head bag spy defend in strong paster stripping process usually exist figure glue-line transfer unevenly have tiny transparent lines and brocken spectrum, or Person is destroyed because the excessively high spy of sealing-strength defends strong paster gluing paper layer in stripping process, tears rear paper scrap and stays in rubberised layer, It is be easy to cause the pollution of built-in curable product, therefore designs a kind of top bag, it is ensured that spy defends strong gluing paper and coating transfer uniformly, table Face Glabrous side phenomenon very it is necessary to.
Summary of the invention
Aiming at the problems existing in the prior art, what the present invention designed be designed to provide a kind of PE temperature difference film and using should The medical top bag of PE temperature difference film preparation.
The present invention is realized by the following technical programs:
The PE temperature difference film, it is characterised in that the PE temperature difference film is by the outer layer of high melting point, support middle layer, low melting point Layer composition, the outer layer is 15-20 DEG C higher than internal layer tolerable temperature, which is 60-90 μm, and outer layer thickness accounts for film thickness The 27-30% of degree, support intima-media thickness account for the 36-40% of film thickness, and internal layer thickness accounts for the 27-30% of film thickness.
The PE temperature difference film, it is characterised in that the outer layer is made of the raw material of following parts by weight, 50% Tao Shi 2036,25% Mitsui Chemicals 2320H, 25% Yangba 2426H.
The PE temperature difference film, it is characterised in that the support middle layer is made of the raw material of following parts by weight, 50% Yangba 2420H, 50% Tao Shi 5401G.
The PE temperature difference film, it is characterised in that the internal layer is made of the raw material of following parts by weight, 25% Tao Shi 1881G, 50% Mitsui Chemicals SP1520,25% Yangba 2426H.
The PE temperature difference film, it is characterised in that outer layer highest tolerable temperature is 125 DEG C.
The PE temperature difference film, it is characterised in that the PE temperature difference film is prepared using following steps:
1) each layer raw material for choosing process stipulation respectively obtain each layer premix after high speed mixer premixes;
2) each layer premix is drawn into respectively in each layer extruder storaging bucket, set preheated different temperature chargings, plasticizing, It is kneaded viscous liquid state;
3) it is kneaded viscous liquid state and enters mold and converge rear coextrusion die head and required to be filled with pressure according to product size in elastomeric state shape Contracting air inflation finally forms a film through vane cooling and shaping;
4) most afterwards through deflector roll winding, packaging.
The PE temperature difference film, it is characterised in that each layer extruder temperature setting stepwise in step 2, the specially area 1-2 are pre- Section or fluxing zone, the area 5-6 mixing section, each zone temperatures setting are melted in hot arc, the area 3-4 are as follows:
Outer layer: 1 165 DEG C of area, 2 175 DEG C of areas, 185 DEG C of -4th area, 3rd area, 180 DEG C of -6th area, 5th area;
Middle layer: 1 160 DEG C of area, 2 165 DEG C of areas, 175 DEG C of -4th area, 3rd area, 170 DEG C of -6th area, 5th area;
Internal layer: 1 150 DEG C of area, 2 160 DEG C of areas, 165 DEG C of -4th area, 3rd area, 160 DEG C of -6th area, 5th area.
The medical top bag of the PE temperature difference film preparation, it is characterised in that including the upper bag body using the film preparation of the PE temperature difference With lower bag body, spy defend strong paster, the upper bag body and lower bag body two sides and bottom end alignment after by banding realize overlap joint tie Structure, the spy defend strong paster and pass through banding and the connection of underseal realization and upper bag body and lower bag body.
The medical top bag using PE temperature difference film preparation, it is characterised in that the upper bag body and lower bag body are by interior Layer, support middle layer and outer layer composition, and the inner layer contacts of the internal layer of upper bag body and lower bag body are arranged.
The medical top bag using PE temperature difference film preparation, it is characterised in that one end of strong paster bonding is defended with spy The length of lower bag body be longer than the length of upper bag body, the spy defends and is connected between strong paster and lower bag body by internal layer underseal, Spy defends and is connected between strong paster and upper bag body by outer layer underseal.
The described medical top bag using PE temperature difference film preparation, it is characterised in that the internal layer underseal and outer layer underseal Heat-sealing pulling force is 3.5-4N/15mm.
Compared with prior art, the present invention there are following the utility model has the advantages that
1) there are 15-20 DEG C of the temperature difference between this temperature difference film ectonexine, it is ensured that the flatness of banding and the fastness of banding;
2) it using the top bag of the temperature difference film preparation, realizes when spy defends strong paster glass without paper scrap fibre shedding, glue-line transfer Uniformly, meet the requirement being safely opened.
Detailed description of the invention
Fig. 1 is temperature difference film preparation process flow chart of the present invention;
Fig. 2 is the structural schematic diagram for coming directly towards bag;
Fig. 3 is the layer structure figure of PE temperature difference film;
In figure, 1- outer layer, 2- supports middle layer, and 3- internal layer, 4- upper bag body, 5- lower bag body, 6- spy defends strong paster, 7- banding, 8- Underseal, 9- internal layer underseal, 10- outer layer underseal.
Specific embodiment
Below in conjunction with Figure of description, present invention is further described in detail, and provides specific embodiment.
Embodiment 1
With a thickness of 60 μm of PE temperature difference film, the outer layer of the high melting point for being 125 DEG C by highest tolerable temperature, low melts at support middle layer Change the internal layer composition of point, specific structure is shown in Fig. 3, and wherein outer layer thickness is 18 μm, and support middle layer is 24 μm, and internal layer is 18 μm, outside Layer is 15-20 DEG C higher than internal layer tolerable temperature, and the outer layer of the temperature difference film is made of the raw material of following parts by weight, 50% Tao Shi 2036, 25% Mitsui Chemicals 2320H, 25% Yangba 2426H;Support middle layer is made of the raw material of following parts by weight, 50% Yangba 2420H, 50% Tao Shi 5401G;Internal layer is made of the raw material of following parts by weight, 25% Tao Shi 1881G, 50% Mitsui Chemicals SP1520,25% Yangba 2426H.
The specific preparation process of the PE temperature difference film is as follows, and Fig. 1 is shown in specific process flow,
1) each layer raw material for choosing process stipulation respectively obtain each layer premix after high speed mixer premixes;2) each layer is premixed Material is drawn into respectively in each layer extruder storaging bucket, is set preheated different temperature charging, plasticizing, is kneaded viscous liquid state;3) It is kneaded viscous liquid state and enters mold and converge rear coextrusion die head and required to be filled with compressed air according to product size in elastomeric state shape Inflation finally forms a film through vane cooling and shaping;4) it is most placed afterwards through deflector roll winding, packaging, top tray, storage.Each layer extruder temperature Setting stepwise, the specially area 1-2 preheating section are spent, section or fluxing zone, the area 5-6 mixing section, each zone temperatures setting are melted in the area 3-4 Are as follows:
Outer layer: 1 165 DEG C of area, 2 175 DEG C of areas, 185 DEG C of -4th area, 3rd area, 180 DEG C of -6th area, 5th area;
Middle layer: 1 160 DEG C of area, 2 165 DEG C of areas, 175 DEG C of -4th area, 3rd area, 170 DEG C of -6th area, 5th area;
Internal layer: 1 150 DEG C of area, 2 160 DEG C of areas, 165 DEG C of -4th area, 3rd area, 160 DEG C of -6th area, 5th area.
Embodiment 2
The PE temperature difference film of the present embodiment the difference from embodiment 1 is that, with a thickness of 90 μm, outer layer thickness is 24.3 μm, in support Layer is 32.4 μm, and internal layer is 24.3 μm, other are the same as embodiment 1.
Embodiment 3
The medical top bag of PE temperature difference film preparation prepared using above-described embodiment 1, specific structure is shown in Fig. 1, including uses upper bag body With lower bag body, spy defend strong paster, upper bag body and lower bag body two sides and bottom end alignment after by banding realize bridging arrangement, spy Strong paster is defended by banding and the connection of underseal realization and upper bag body and lower bag body, upper bag body and lower bag body by internal layer, branch Middle layer and outer layer composition are supportted, and the inner layer contacts of the internal layer of upper bag body and lower bag body are arranged, the one of strong paster bonding is defended with spy The length of the lower bag body at end is longer than the length of upper bag body, and spy defends and connected between strong paster and lower bag body by internal layer underseal, special It defends and is connected between strong paster and upper bag body by outer layer underseal.The heat-sealing pulling force of the internal layer underseal and outer layer underseal is 3.5- 4N/15mm。
Its performance test data of PE temperature difference film and detection method of embodiment 1 are as follows:
Using the top bag of the above structure of the PE temperature difference film preparation, heat-sealing pulling force is moderate, not only guarantees the fastness of bonding, but also It convenient for fast and safely removing, less than the minimum value of the heat-sealing pulling force, then bonds loosely, easily opens, most greater than the heat-sealing pulling force , then easily there is clast in big value when removing, pollutes content.

Claims (10)

1.PE temperature difference film, it is characterised in that outer layer (1) of the PE temperature difference film by high melting point, support middle layer (2), low melting point Internal layer (3) composition, the outer layer (1) is 15-20 DEG C higher than internal layer (3) tolerable temperature, which is 60-90 μm, outside Layer (1) thickness accounts for the 27-30% of film thickness, and support middle layer (2) thickness accounts for the 36-40% of film thickness, and internal layer (3) thickness accounts for film thickness 27-30%.
2. PE temperature difference film as described in claim 1, it is characterised in that the outer layer (1) is made of the raw material of following parts by weight, The Mitsui Chemicals 2320H of 50% Tao Shi 2036,25%, 25% Yangba 2426H.
3. PE temperature difference film as described in claim 1, it is characterised in that the raw material group for supporting middle layer (2) by following parts by weight At 50% Yangba 2420H, 50% Tao Shi 5401G.
4. PE temperature difference film as described in claim 1, it is characterised in that the internal layer (3) is made of the raw material of following parts by weight, 25% Tao Shi 1881G, 50% Mitsui Chemicals SP1520,25% Yangba 2426H.
5. PE temperature difference film as described in claim 1, it is characterised in that outer layer (1) highest tolerable temperature is 125 DEG C.
6. PE temperature difference film as described in claim 1, it is characterised in that the PE temperature difference film is prepared using following steps:
1) each layer raw material for choosing process stipulation respectively obtain each layer premix after high speed mixer premixes;
2) each layer premix is drawn into respectively in each layer extruder storaging bucket, set preheated different temperature chargings, plasticizing, It is kneaded viscous liquid state;
3) it is kneaded viscous liquid state and enters mold and converge rear coextrusion die head and required to be filled with pressure according to product size in elastomeric state shape Contracting air inflation finally forms a film through vane cooling and shaping;
4) most afterwards through deflector roll winding, packaging.
7. PE temperature difference film as claimed in claim 6, it is characterised in that each layer extruder temperature setting stepwise in step 2, specifically For the area 1-2 preheating section, section or fluxing zone, the area 5-6 mixing section, each zone temperatures setting are melted in the area 3-4 are as follows:
Outer layer: 1 165 DEG C of area, 2 175 DEG C of areas, 185 DEG C of -4th area, 3rd area, 180 DEG C of -6th area, 5th area;
Middle layer: 1 160 DEG C of area, 2 165 DEG C of areas, 175 DEG C of -4th area, 3rd area, 170 DEG C of -6th area, 5th area;
Internal layer: 1 150 DEG C of area, 2 160 DEG C of areas, 165 DEG C of -4th area, 3rd area, 160 DEG C of -6th area, 5th area.
8. using the medical top bag of PE temperature difference film preparation described in claim 1, it is characterised in that including using PE temperature difference film The upper bag body (4) of preparation and lower bag body (5), spy defend strong paster (6), the upper bag body (4) and lower bag body (5) two sides and bottom end Realize bridging arrangement by banding (7) after portion's alignment, the spy defend strong paster (6) by banding (7) and underseal (8) realize with The connection of upper bag body (4) and lower bag body (5).
9. as claimed in claim 8 using the film preparation of the PE temperature difference medical top bag, it is characterised in that the upper bag body (4) and Lower bag body (5) is made of internal layer (3), support middle layer (2) and outer layer (01), and the internal layer of upper bag body (4) and lower bag body (5) Inner layer contacts setting.
10. as claimed in claim 8 using the medical top bag of PE temperature difference film preparation, it is characterised in that defend strong paster with spy (6) length of the lower bag body (5) of the one end bonded is longer than the length of upper bag body (4), and the spy defends strong paster (6) and lower bag body (5) it is connected between by internal layer underseal (9), spy, which defends, to be connected between strong paster (6) and upper bag body (4) by outer layer underseal (10) It connects, the heat-sealing pulling force of the internal layer underseal (9) and outer layer underseal (10) is 3.5-4N/15mm.
CN201910797960.8A 2019-08-27 2019-08-27 PE (polyethylene) temperature difference film and medical header bag prepared by adopting same Active CN110509643B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201910797960.8A CN110509643B (en) 2019-08-27 2019-08-27 PE (polyethylene) temperature difference film and medical header bag prepared by adopting same

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105366174A (en) * 2015-11-30 2016-03-02 江门市新时代外用制剂有限公司 Medical sterilizing and packaging header bag
CN108068421A (en) * 2017-12-26 2018-05-25 常州市华健药用包装材料股份有限公司 Medicinal high-speed packaging polyethylene film
CN208746607U (en) * 2018-09-07 2019-04-16 南通富华医用包装有限公司 A kind of uncoated medical top bag

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105366174A (en) * 2015-11-30 2016-03-02 江门市新时代外用制剂有限公司 Medical sterilizing and packaging header bag
CN108068421A (en) * 2017-12-26 2018-05-25 常州市华健药用包装材料股份有限公司 Medicinal high-speed packaging polyethylene film
CN208746607U (en) * 2018-09-07 2019-04-16 南通富华医用包装有限公司 A kind of uncoated medical top bag

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Address after: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051

Patentee after: Hangzhou Zhongcheng Material Technology Co.,Ltd.

Address before: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051

Patentee before: HANGZHOU ZHONGCHENG PLASTIC PACKING CO.,LTD.

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Effective date of registration: 20231222

Address after: 313009 Beixing Road, Shanlian Town, Nanxun District, Huzhou City, Zhejiang Province

Patentee after: Zhejiang Desheng New Materials Technology Co.,Ltd.

Address before: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051

Patentee before: Hangzhou Zhongcheng Material Technology Co.,Ltd.