CN104999737A - Composite film suitable for producing moisture-proof and anti-static packing bags - Google Patents
Composite film suitable for producing moisture-proof and anti-static packing bags Download PDFInfo
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- CN104999737A CN104999737A CN201510507297.5A CN201510507297A CN104999737A CN 104999737 A CN104999737 A CN 104999737A CN 201510507297 A CN201510507297 A CN 201510507297A CN 104999737 A CN104999737 A CN 104999737A
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- composite membrane
- moisture
- packaging bag
- film
- antistatic
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/088—Layered products comprising a layer of metal comprising metal 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 comprising polyamides
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/082—Layered products comprising a layer of metal comprising metal 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 comprising vinyl resins; comprising acrylic resins
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/095—Layered products comprising a layer of metal comprising metal 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 comprising polyurethanes
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
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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
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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
-
- 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
- B32B2307/582—Tearability
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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
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a composite film suitable for producing moisture-proof and anti-static packing bags. The composite film comprises an outer protective film, a moisture shielding layer and an anti-static structural layer, wherein the outer protective film is clung to the moisture shielding layer; the anti-static structural layer includes at least one polyurethane film; the anti-static structural layer is clung to the moisture shielding layer. Through the manner, the composite film provided by the invention can meet the anti-static requirements of electronic product packing materials, has strong moisture-proof and waterproof properties and can effectively shield static and moisture; in addition, the film material is excellent in wear resistance and tear resistance, so that the packing bags can be prevented from being torn by sharp electronic parts during long-time transportation.
Description
Technical field
The present invention relates to packaging material field, be specifically related to electronic product parts packaging material.
Background technology
Anti-static shielding bag is widely used in electronic semi-conductor's industry, fibre optic manufacturing, telecommunications and radio communication, pharmaceutical sector, automobile manufacture industry etc., avoids sensitive electronic components inside and surface to be endangered because of Electro-static Driven Comb and Electromagnetic Interference etc.But for electronic component or semiconductor, packaging bag can be played antistatic, prevent outside the effects such as the foreign substance pollution such as fingerprint, dust, also must play the effect of protection against the tide and shielding moisture.If accurate electronic accessory parts, element touch hydrone, then can play impact to the sensitivity etc. of element, therefore have more strict requirement to electronic accessory parts or semi-conductor packaging material in industry now: moistureproof and waterproof performance must be focused on while antistatic.
The material of before conventional in electron trade electronic product electrostatic prevention packaging bag is generally be made up of polyester film and metal forming compound, or makes at polyethylene film top layer coating electrostatic layer.As adopted metallics evaporation or the spraying method such as top layer aluminium, nickel, titanium, copper, chromium, zinc at polyester film, metallic diaphragm on the top layer evaporation or spraying of polyester film, thus obtain the polyester film material with electrostatic-proof function, and make antistatic packaging bag with this material; Or utilize surfactant, carbon black to be coated into anti-static coating by coating method on polyethylene film surface, thus obtain the polyethylene film material with electrostatic-proof function, be then made into antistatic packaging bag.
But in actual production and transportation, the performance of the electronic component that electronic accessory parts, semiconductor spare and accessory parts or computer hard disc driving head are accurate like this can be subject to the impact of dust or periphery humidity, therefore must shield dust and moisture completely during packaging, the electronic component after packaging can be transported under not by the impact of any moisture.And the too much emphasis antistatic performance of packaging bag of the prior art is seldom concerned about the moistureproof and waterproof performance of packaging bag.
In addition, in long-term practice, applicant finds, for display, electronic accessories or semiconductor annex, particularly OLED(Organic Electricity laser display), liquid crystal panel (cell) or display module (Module) because corner is sharper, have the phenomenon of tearing outer packaging when packing.Will cause like this and produce foreign matter on liquid crystal panel (Cell) surface, and in washing engineering, other fees occur.And to be also product there is bad subject matter point for this.
Patent document about anti-static shielding bag in prior art is more, as: disclose a kind of electrostatic shielding composite packaging bag in the patent of Authorization Notice No. CN 2589355Y, the sheet material of this packaging bag is the laminated film of four-layer structure, and this laminated film is followed successively by from inside to outside: hot sealing layer, the thin metal layer being combined in a side surface of hot sealing layer, the laminated polyester film being combined in the insulating barrier on thin metal layer and covering on the insulating layer.Wherein: hot sealing layer is the film containing polyethylene and un-stretched polypropylene, containing antistatic additive and in this film; Thin metal layer is thickness 10 μm is the alumina flake of 103--105 Ω with sheet resistance; Insulating barrier is the PE adhesive layer of sheet resistance >=1012 Ω; The sheet resistance of laminated polyester film is 108-109 Ω.The sheet resistance of the laminated film of this structure is not enough to reach gratifying degree, is difficult to be applicable to the packaging to high-precision microelectronic element.
Publication number is anti-static shielding slice material and the processing method that the patent of invention of CN101267706A discloses a kind of sandwich construction, the anti-static shielding slice material of this patent application is spaced by antistatic backing and screen layer to form, and between antistatic backing and screen layer, arrange the filling bed filled the post of by PP polypropylene, ABS acrylonitrile-butadiene-styrol copolymer, glycol-modified PETG, polyester, Merlon, polystyrene or polyethylene.Antistatic backing for add antistatic material in common plastics, and antistatic material is as carbon black, graphite, metal dust, wire, permanently antistatic agent IDP (electrically conductive polyaniline) and permanent conductive agent ICP etc.; Screen layer is add carbon black graphite powder, fiber, metal dust and IDP etc. in common plastics, forms conductive plastic film.
Authorization Notice No. is disclose a kind of antistatic packaging material in the Chinese utility model patent of CN 202192813 U, comprise internal layer, secondary internal layer, secondary skin and skin, internal layer is film layer, secondary internal layer is metal level, secondary skin is laminated polyester film, skin is antistatic backing, and this antistatic backing is nanometer antimony-doped stannic oxide polyurethane material.
But be more lay particular emphasis on the antistatic performance improving material in packaging material disclosed in above-mentioned patented technology, and in conjunction with above-mentioned applicant to the case study in the production and transport of electronic product original paper, applicant thinks, in prior art, the packaging bag of electronic product should performance boost further, only do not pay close attention to antistatic performance, also more should pay close attention to protection against the tide, waterproof, tear-resistant performance.
Summary of the invention
Main purpose of the present invention is for above-mentioned deficiency of the prior art, a kind of composite membrane being applicable to make moisture-proof antistatic packaging bag is provided, this composite membrane can be used as to make electronic accessory parts packaging bag, this composite membrane not only meets the antistatic demand of electronic product packaging material, and there is very strong moistureproof and waterproof performance, can effectively shield electrostatic and moisture, and the anti-wear performance of this membrane material, tear-resistant excellent performance, avoid for a long time in transit, packaging bag is torn phenomenon and is occurred by sharp-pointed electronic accessory parts.
For achieving the above object, technical scheme disclosed by the invention is as follows:
Be applicable to the composite membrane making moisture-proof antistatic packaging bag, described composite membrane comprises: outer cuticula, moisture screen layer and electrostatic prevention structure layer;
Described outer cuticula and described moisture screen layer fit;
Described electrostatic prevention structure layer at least comprises one deck polyurethane film; Described electrostatic prevention structure layer and described moisture screen layer are fitted.
Preferably, described outer cuticula is made up of a kind of material in polyester, nylon, polyethylene.
Preferred further, described outer cuticula is that nylon material is made.The English of described nylon material is Nylon.
Preferably, described moisture screen layer is made up of aluminium film or surperficial aluminizer or surperficial half aluminizer or surperficial AM aluminum metallization film.Described surperficial aluminizer, surperficial half aluminizer, surperficial AM aluminum metallization film all refer to the film formed after aluminizing in PET base material surface.Preferably, the thickness of described moisture screen layer can between 0.005-10 mm.The English of described aluminium is: Al.
Preferably, the thickness of described outer cuticula, moisture screen layer and polyurethane film is between 0.005-10mm.
Preferably, described electrostatic prevention structure layer also comprises inner layer film, and described inner layer film one side is fitted with moisture screen layer, and another side and described polyurethane film are fitted.
Preferred further, described inner layer film adopts polyurethane or polyethylene to make.
Preferably, what described polyurethane film adopted is thermoplastic polyurethane film.
Preferably, what described polyurethane film adopted is inner additive type antistatic thermoplastic polyurethane film.
Preferably, have at least one deck to be the membrane material with antistatic performance in described electrostatic prevention structure layer, described antistatic performance is by realizing at this membrane material surface coating method or interior addition manner.
The invention also discloses a kind of packaging material made according to above-mentioned composite membrane, described packaging material are made up of above-mentioned composite membrane, and the both sides of described composite membrane are provided with antistatic coating layer.
The invention also discloses a kind of packaging bag of making according to above-mentioned composite membrane, described packaging bag is made up of described composite membrane.
The invention also discloses a kind of purposes of above-mentioned composite membrane, described composite membrane is for making the packaging bag of display, electronic component, liquid crystal panel or display module, IT parts, electric appliance and electronic parts, auto parts machinery or food.
Thermoplastic polyurethane of the present invention (thermoplastic polyurethane, TPU) film, with blown film or with T-die form extrusion TPU film, cover TPU film by thermal-adhering form, or directly extrude with T-die form the characteristic that rear bonding can form multilayer.The TPU film thickness that can manufacture use is between 0.005-10 mm.
Inner layer film of the present invention can directly use thermoplastic polyurethane film, also low density polyethylene (LDPE) (low density polyethylene can be used, LDPE), the polyethylene film made of LLDPE (linear low density polyethylene. LLDPE), high density polyethylene (HDPE) (high density polyethylene, HDPE) or their polyethylene mixture.
The membrane material with antistatic performance described in the present invention, if the realization of the antistatic performance of wherein said membrane material is realized by inner additive type, then inner additive type antistatic agent can use ionic, ionic complex or non ionic polymer antistatic agent.
The membrane material with antistatic performance described in the present invention, the realization of the antistatic performance of wherein said membrane material, if by the words that coating method realizes, be then that antistatic material is coated with at the general coating method of at least one side cable roll, mirror roller, spraying etc. of described film, and after the thermmohardening of about 2 minutes, form coating layer at 50 ~ 100 DEG C.Carry out sheet resistance test by the mode of ASTM D257, the sheet resistance of the membrane material after coating can reach 10
6ohm-sq inch.
The described two sides with the membrane material of antistatic performance can be coated with different antistatic materials.Described antistatic material can be the conductive materials such as organic conductive macromolecule, CNT, Graphene, also can be electroconductive polymer dispersion liquid poly-(3,4-ethene epoxy thiophene) (the preferred German H. C. Starck company of employing produces).In addition, other additive such as acrylic or polyurethane mixed adhesive, water and organic solvent (NMP, DMSO, alcohols) can also be comprised in described antistatic material.
The antistatic material that the described inner side with the membrane material of antistatic performance is generally coated with employing is by antistatic agent and methyl alcohol, ethanol, isopropyl alcohol, isobutanol, t-butanols, phenmethylols such as surfactant, high molecular surfactant, Ar ion mixing types, alcohols such as ethylene glycol or make with water is used in combination.During coating, the antistatic material mixed is coated with at general coating methods such as needing the inner side of the membrane material of coating use cable roll, mirror roller, spraying, and after the thermmohardening of about 2 minutes, is forming coating layer at 50 ~ 100 DEG C.Carry out sheet resistance test by the mode of ASTM D257, sheet resistance can reach 10
9ohm-sq inch.
The use for electronic products packaging bag that composite membrane of the present invention is made, to compare the sack made as inner face in order to low-density polyethylene film, the packaging of display, electronic accessories liquid crystal panel or display module can produce the phenomenon of tearing and producing foreign matter when transferring afterwards, the electronic accessories packed with superposition film is made according to the present invention packs sack, not only can not produce and tear the phenomenon that phenomenon produces foreign matter, but also the outstanding packaging sack of moisture shield effectiveness can be produced.
Except the packaging of display, electronic accessories liquid crystal panel or display module, composite membrane of the present invention can also make IT annex, motor electronic annex, the packaging of automobile component, but also can produce food packaging, the moisture shield effectiveness of industry articles for use and tear the outstanding sack of preventing effectiveness.
The invention has the beneficial effects as follows: composite membrane of the present invention not only meets the antistatic demand of electronic product packaging material, and there is very strong moistureproof and waterproof performance, can effectively shield electrostatic and moisture, and the anti-wear performance of this membrane material, tear-resistant excellent performance, avoid for a long time in transit, packaging bag is torn phenomenon and is occurred by sharp-pointed electronic accessory parts.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applicable to composite membrane one preferred embodiment making moisture-proof antistatic packaging bag;
Fig. 2 is the structural representation that the present invention is applicable to another preferred embodiment of composite membrane making moisture-proof antistatic packaging bag;
Fig. 3 is the structural representation that the present invention is applicable to another preferred embodiment of composite membrane making moisture-proof antistatic packaging bag;
Fig. 4 is the structural representation that the present invention is applicable to another preferred embodiment of composite membrane making moisture-proof antistatic packaging bag;
Fig. 5 is the structural representation that the present invention is applicable to another preferred embodiment of composite membrane making moisture-proof antistatic packaging bag.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Please refer to accompanying drawing 1 to accompanying drawing 5, the embodiment of the present invention comprises:
Embodiment 1: a kind of composite membrane being applicable to the packaging bag of making moisture-proof antistatic, described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2; Described electrostatic prevention structure layer at least comprises one deck polyurethane film; Described electrostatic prevention structure layer and described moisture screen layer are fitted.
Embodiment 2: please refer to accompanying drawing 1, a kind of composite membrane being applicable to the packaging bag of making moisture-proof antistatic, described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2; In the present embodiment, described electrostatic prevention structure layer is polyurethane film 3; Polyurethane film 3 and moisture screen layer 2 are fitted.
Embodiment 3: the difference of the present embodiment and embodiment 2 is, in the present embodiment, what polyurethane film 3 adopted is that thermoplastic polyurethane membrane material is made.Outer cuticula 1 is made up of a kind of material in polyester, nylon, polyethylene.
Embodiment 4: please refer to accompanying drawing 2, a kind of composite membrane being applicable to the packaging bag of making moisture-proof antistatic, described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2;
Described electrostatic prevention structure layer is made up of one deck polyurethane film 3 and inner layer film 4; Inner layer film 4 one side is fitted with moisture screen layer 2, and another side and polyurethane film 3 are fitted.
Embodiment 5: the difference of the present embodiment and embodiment 4 is, in the present embodiment, what polyurethane film 3 adopted is that thermoplastic polyurethane membrane material is made.
Embodiment 6: the difference of the present embodiment and embodiment 4 is, in the present embodiment, inner layer film 4 adopts polyurethane material to make.
Embodiment 7: the difference of the present embodiment and embodiment 4 is, in the present embodiment, inner layer film 4 adopts polythene material to make.
Embodiment 8: please refer to accompanying drawing 3, a kind of composite membrane being applicable to the packaging bag of making moisture-proof antistatic, described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2; In the present embodiment, described electrostatic prevention structure layer is polyurethane film 3; Polyurethane film 3 and moisture screen layer 2 are fitted.The lateral surface of the present embodiment ectomesoderm cuticula 1 is provided with one deck antistatic coating layer 5, and the lateral surface of polyurethane film 3 is provided with one deck antistatic coating layer 5.
Namely antistatic coating layer 5 described in the present embodiment is the membrane material with antistatic performance.
The antistatic performance of the antistatic coating layer 5 in the present embodiment is by realizing at membrane material surface coating antistatic material.The antistatic coating layer 5 of the present embodiment can adopt polythene material or adopt polyurethane material to make.
Embodiment 9: the difference of the present embodiment and embodiment 8 is, in the present embodiment, antistatic coating layer 5 is made at polyethylene film surface carbon nanotubes material.
Embodiment 10: the difference of the present embodiment and embodiment 8 is, in the present embodiment, the two sides of antistatic coating layer 5 can be coated with different electrostatic substances.Described antistatic material can be the conductive materials such as organic conductive macromolecule, CNT, Graphene, also can be electroconductive polymer dispersion liquid poly-(3,4-ethene epoxy thiophene) (the preferred German H. C. Starck company of employing produces).In addition, other additive such as acrylic or polyurethane mixed adhesive, water and organic solvent (NMP, DMSO, alcohols) can also be comprised in described antistatic material.
Embodiment 11: please refer to accompanying drawing 4, a kind of packaging material, described packaging material are made up of composite membrane, and described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2;
Described electrostatic prevention structure layer is made up of one deck polyurethane film 3 and inner layer film 4; Inner layer film 4 one side is fitted with moisture screen layer 2, and another side and polyurethane film 3 are fitted; Inner layer film 4 is made up of polythene material.
In the present embodiment, the both sides of this composite membrane are equipped with antistatic coating layer 5.
Embodiment 12: please refer to accompanying drawing 5, a kind of composite membrane being applicable to the packaging bag of making moisture-proof antistatic, described composite membrane comprises: outer cuticula 1, moisture screen layer 2 and electrostatic prevention structure layer; Outer cuticula 1 fits with moisture screen layer 2.In the present embodiment, electrostatic prevention structure layer is made up of one deck antistatic polyurethane film 6 and inner layer film 4, and inner layer film 4 and moisture screen layer 2 are fitted, and antistatic polyurethane film 6 and inner layer film 4 are fitted.The lateral surface of the present embodiment ectomesoderm cuticula 1 is provided with one deck antistatic coating layer 5.
Embodiment 13: the difference of the present embodiment and embodiment 12 is, in the present embodiment, what antistatic polyurethane film 6 adopted is inner additive type antistatic polyurethane film.Wherein inner additive type antistatic agent can use ionic, ionic complex or non ionic polymer antistatic agent.
Embodiment 14: a kind of packaging bag utilizing composite membrane to make, this packaging bag is closed by the composite membrane hot paste of preparation in two embodiments 1 and is made, this packaging bag moisture shield effectiveness and tear preventing effectiveness excellence.
Embodiment 15:
a kind of manufacture of packaging material composite membrane of Nylon/Al/TPU sandwich construction:on the Nylon film that 15um is thick, use EAA adhesive to be coated with, coating thickness 5 ~ 10um, at 60 DEG C ~ 100 DEG C temperature, carry out first time thermmohardening, then aluminium foil thick for 7um is passed through pressure roller compound after-hardening process.On the Nylon/Al film that compound is good, in aluminium foil side with adhesive coating 5 ~ 10um, after dry sclerosis in 2 ~ 5 minutes at heated drying baking oven 60 DEG C ~ 100 DEG C temperature, then by TPU film thick for 45um by maturation 48 hours at 50 DEG C ~ 60 DEG C temperature after pressure roller compound.Like this, the composite membrane of Nylon/Al/TPU structure is just produced complete.
Embodiment 16: a kind of
utilize the packaging bag that Nylon/Al/TPU composite membrane manufactures:with the composite membrane of two Nylon/Al/TPU structures, after making TPU face face one another arrangement, at 150 DEG C ~ 160 DEG C temperature, under the pressure of 2kg ~ 5kg, paste jail mutually by its three, produce the packaging bag of three bandings.
embodiment 17: a kind of manufacture of packaging material composite membrane of Nylon/Al/PE/TPU sandwich construction:after using EAA adhesive to be coated with the thickness of 5 ~ 10um on the Nylon film that 15um is thick, after within 2 ~ 5 minutes at 60 DEG C ~ 100 DEG C, carrying out first time sclerosis, then aluminium foil thick for 7um is used the after-hardening of pressure roller compound.The bilayer film of TPU (15um)/LLDPE (30um) 45um is produced by blown film mode.On the Nylon/Al film that compound is good, be coated with EAA adhesive in aluminium foil side, coating thickness 5 ~ 10um, after coating after dry sclerosis in 2 ~ 5 minutes at heated drying baking oven 60 ~ 100 DEG C of temperature, then by TPU (15um)/LLDPE (30um) 45um bilayer film by maturation 48 hours at 50 DEG C ~ 60 DEG C temperature after pressure roller compound.Like this, Nylon/Al/LLDPE/TPU composite membrane has manufactured.
embodiment 18: a kind of packaging bag utilizing Nylon/Al/PE/TPU composite membrane to manufacture:with the composite membrane of two Nylon/Al/LLDPE/TPU structures, after making TPU face face one another arrangement, at 150 DEG C ~ 160 DEG C temperature, under 2 ~ 5kg pressure, is fitted in its three limit, produce the packaging bag of three bandings.
comparative example 1: a kind of manufacture of packaging material composite membrane of Nylon/Al/LLDPE sandwich construction:
Utilize the 45um TPU in the LLDPE alternate embodiment 15 of 45um, the sandwich construction composite membrane of Nylon/Al/LLDPE can be produced equally.
comparative example 2: a kind of packaging bag utilizing Nylon/Al/LLDPE to superpose thin film fabrication:with two Nylon/Al/LLDPE sandwich construction composite membranes, after making the facing arrangement in LLDPE face, produce packaging bag by the mode the same with embodiment 16.
experimental example:
The anti-tear effect of the packaging bag of embodiment 16 and comparative example 2 being produced and moisture shield effectiveness (poisture-penetrability test) test result are presented in table 1 and table 2.
Tearing preventing effectiveness and moisture shield effectiveness is all internal layer membrane face tests in embodiment 16 and comparative example 2.
Moisture shield effectiveness (moisture permeability test) test is carried out after using the composite membrane of same thickness to manufacture packaging bag.Wearability test data use test instrument for testing wear resistance (Model:NO.570, grinding stone: CS-17), and under bearing a heavy burden at 1 kilogram, the friction amount that 7000 times test front and back weight reduces afterwards is tested.ShowA hardness test uses the test position of YOSHIMITSU YCC-230/1 hardness-testing device product to press the numerical value of rear reading pointer vertically downward to test.Pencil hardness uses YOSHIMITSU (221-D) pencil hardness test device (Mitsubishi's pencil hardness pencil), insert pencil in pencil hardness device after, confirm ground rear linear running tester whether parallel with pressurized product, whether dust occurs carry out test surfaces hardness by observing surface.The test of moisture permeability is tested according to ASTM E 96-80 specification.
[table 1] hardness and wearability compare
[table 2] moisture shield effectiveness (moisture permeability) compares
The test result of table 1 and table 2 illustrates, the packaging bag that traditional fabrication is compared in the packaging bag that composite membrane of the present invention makes has had significant progress in hardness.And on the yardstick wearability test preventing tear(ing) strength, the composite membrane produced according to the present invention does not tear phenomenon completely.In moisture shield effectiveness (moisture permeability test), the packaging bag that composite membrane disclosed in technical solution of the present invention is made is more excellent than conditional electronic product electrostatic prevention packaging bag performance.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (13)
1. be applicable to the composite membrane making moisture-proof antistatic packaging bag, it is characterized in that, described composite membrane comprises: outer cuticula, moisture screen layer and electrostatic prevention structure layer;
Described outer cuticula and described moisture screen layer fit;
Described electrostatic prevention structure layer at least comprises one deck polyurethane film; Described electrostatic prevention structure layer and described moisture screen layer are fitted.
2. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 1, it is characterized in that, described outer cuticula is made up of a kind of material in polyester, nylon, polyethylene.
3. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 2, it is characterized in that, described outer cuticula is that nylon material is made.
4. be according to claim 1ly applicable to the composite membrane making moisture-proof antistatic packaging bag, it is characterized in that, described moisture screen layer is made up of aluminium film or surperficial aluminizer or surperficial half aluminizer or surperficial AM aluminum metallization film.
5. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 1, it is characterized in that, the thickness of described outer cuticula, moisture screen layer and polyurethane film is between 0.005-10mm.
6. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 1, it is characterized in that, described electrostatic prevention structure layer also comprises inner layer film, and described inner layer film one side is fitted with moisture screen layer, and another side and described polyurethane film are fitted.
7. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 6, is characterized in that, described inner layer film adopts polyurethane or polyethylene to make.
8. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 1, it is characterized in that, what described polyurethane film adopted is thermoplastic polyurethane film.
9. being applicable to according to claim 1 or 8 makes the composite membrane of moisture-proof antistatic packaging bag, it is characterized in that, what described polyurethane film adopted is inner additive type antistatic thermoplastic polyurethane film.
10. the composite membrane being applicable to the packaging bag of making moisture-proof antistatic according to claim 1, it is characterized in that, have at least one deck to be the membrane material with antistatic performance in described electrostatic prevention structure layer, described antistatic performance is by realizing at this membrane material surface coating method or interior addition manner.
11. 1 kinds of packaging material made according to any one composite membrane in the claims 1-10, is characterized in that, described packaging material are made up of above-mentioned composite membrane, and the both sides of described composite membrane are provided with antistatic coating layer.
12. 1 kinds of packaging bags of making according to any one composite membrane in the claims 1-10, is characterized in that, described packaging bag is made up of described composite membrane.
In 13. the claims 1-10, the purposes of any one composite membrane, is characterized in that, described composite membrane is for making the packaging bag of display, electronic component, liquid crystal panel or display module, IT parts, electric appliance and electronic parts, auto parts machinery or food.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507297.5A CN104999737A (en) | 2015-08-18 | 2015-08-18 | Composite film suitable for producing moisture-proof and anti-static packing bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507297.5A CN104999737A (en) | 2015-08-18 | 2015-08-18 | Composite film suitable for producing moisture-proof and anti-static packing bags |
Publications (1)
| Publication Number | Publication Date |
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| CN104999737A true CN104999737A (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510507297.5A Pending CN104999737A (en) | 2015-08-18 | 2015-08-18 | Composite film suitable for producing moisture-proof and anti-static packing bags |
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| Country | Link |
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| CN (1) | CN104999737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365292A (en) * | 2015-12-10 | 2016-03-02 | 太仓贝斯特机械设备有限公司 | Antistatic heat-insulating aluminum film bag |
| CN105437666A (en) * | 2015-12-10 | 2016-03-30 | 太仓贝斯特机械设备有限公司 | Flame-retardant antistatic aluminium film bag |
| CN108454267A (en) * | 2018-04-09 | 2018-08-28 | 浙江天之元物流科技有限公司 | A kind of environmental protection is resistance to tear documents pouch |
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| WO2008154231A2 (en) * | 2007-06-06 | 2008-12-18 | 3M Innovative Properties Company | Antistatic film and article comprising the same |
| CN102448279A (en) * | 2011-09-14 | 2012-05-09 | 常熟市双乐彩印包装有限公司 | Sheet material used by electronic grade anti-static shielding bag and manufacturing method thereof |
| CN204137652U (en) * | 2014-10-10 | 2015-02-04 | 宜兴威尼特包装袋有限公司 | The anti-expansion flexible freight container of high barrier |
| CN204977649U (en) * | 2015-08-18 | 2016-01-20 | 恩斯盟防静电材料(苏州)有限公司 | Complex film and wrapping bag of making suitable for static wrapping bag is prevented in preparation |
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| WO2008154231A2 (en) * | 2007-06-06 | 2008-12-18 | 3M Innovative Properties Company | Antistatic film and article comprising the same |
| CN102448279A (en) * | 2011-09-14 | 2012-05-09 | 常熟市双乐彩印包装有限公司 | Sheet material used by electronic grade anti-static shielding bag and manufacturing method thereof |
| CN204137652U (en) * | 2014-10-10 | 2015-02-04 | 宜兴威尼特包装袋有限公司 | The anti-expansion flexible freight container of high barrier |
| CN204977649U (en) * | 2015-08-18 | 2016-01-20 | 恩斯盟防静电材料(苏州)有限公司 | Complex film and wrapping bag of making suitable for static wrapping bag is prevented in preparation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365292A (en) * | 2015-12-10 | 2016-03-02 | 太仓贝斯特机械设备有限公司 | Antistatic heat-insulating aluminum film bag |
| CN105437666A (en) * | 2015-12-10 | 2016-03-30 | 太仓贝斯特机械设备有限公司 | Flame-retardant antistatic aluminium film bag |
| CN108454267A (en) * | 2018-04-09 | 2018-08-28 | 浙江天之元物流科技有限公司 | A kind of environmental protection is resistance to tear documents pouch |
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