CN201520085U

CN201520085U - Anti-static dampproof film

Info

Publication number: CN201520085U
Application number: CN2009202680023U
Authority: CN
Inventors: 王天坤
Original assignee: 王天坤
Current assignee: SUZHOU SKY INDUSTRIAL CO., LTD.
Priority date: 2009-11-02
Filing date: 2009-11-02
Publication date: 2010-07-07
Anticipated expiration: 2019-11-02

Abstract

The utility model discloses an anti-static dampproof film which comprises a main body layer, an anti-static outer layer fixedly connected with the outer side of the main body layer, and an anti-static inner layer fixedly connected with the inner side of the main body layer, wherein the main body layer has a five-layer composite structure: a polyester layer, a metal layer, a nylon layer, a metallocene polyethylene layer and a polyethylene or polypropylene layer from outside to inside. The anti-static dampproof film has excellent heat sealing performance and isolating performance, is one of films which are used widely on package, is mainly applied to the packages of electronic components and optical precision elements, and also can be used for the package of high-temperature boiling bags, household goods and disinfection medical treatment.

Description

A kind of antistatic moisture-proof film

Technical field

The utility model relates to a kind of packaging material of antistatic, is specifically related to a kind of antistatic moisture-proof film.

Background technology

At present, the application of electronic product is more and more, because the precise structure complexity of electronic devices and components, in the process of circulation and use, be subjected to the infringement of static and water vapour molecule easily, the lighter makes that the electrical quantity of electronic component drifts about, the lost of life, and weight person makes components and parts entirely ineffective.Static discharge is a kind of ubiquitous danger to more and more tangible data handling system of trend toward miniaturization and communication class electronic product.If use common material to pack these electronic devices and components, then can cause great loss.

At the problems referred to above, the antistatic moisture barrier bag made by the antistatic moisture-proof film has appearred, and this film comprises body layer, it is outer and be fixedly connected on the antistatic internal layer of body layer inboard to be fixedly connected on the antistatic in the body layer outside.Body layer wherein is generally three-layer composite structure, and two outside layers is respectively polyester layer, polyethylene or polypropylene layer, and the intermediate layer is generally coated with aluminum film, independent aluminium foil or nylon layer.Because the existence of inside and outside antistatic backing, this packaging bag can prevent the infringement of static effectively, simultaneously by the setting in intermediate layer, has the function of protection against the tide or lucifuge, thereby has obtained widespread usage.Yet the heat sealability and the barrier of the antistatic moisture barrier bag that above-mentioned antistatic moisture-proof film is made are relatively poor, and the needs of further raising are arranged.

Summary of the invention

The utility model purpose provides a kind of antistatic moisture-proof film, to improve its heat sealability and barrier property.

For achieving the above object, the technical solution adopted in the utility model is: a kind of antistatic moisture-proof film, comprise body layer, to be fixedly connected on the antistatic in the body layer outside outer and be fixedly connected on the antistatic internal layer of body layer inboard, described body layer is 5 layers of composite construction, is followed successively by polyester layer, metal level, nylon layer, metallocene PE layer and polyethylene or polypropylene layer from outside to inside.

Above, described antistatic backing is a prior art, and described body layer is wrapped in antistatic internal layer and the skin.Last one deck of described body layer is polyethylene or polypropylene layer; Wherein, the preparation method and the complex method of polyethylene (polypropylene) layer, polyester layer, metal level, nylon layer all can adopt prior art.For example: antistatic backing adds curing agent then by the resin material that contains surfactant and is cured forming processes, and antistatic skin and antistatic internal layer after above-mentioned curing is handled are fixedlyed connected with body layer.Wherein, polyethylene (polypropylene) layer, polyester layer, metal level and nylon layer are every adds adhesive between two-layer and is composited through dry compound machine.Described metallocene PE layer is better than the heat sealability of conventional polyethylene layer, can play good heat-sealing effect, and its heat-sealing temperature is wide simultaneously, the time short, and it is low to play the envelope temperature, is very beneficial for follow-up heat-sealing bag operation.

In the technique scheme, described metal level is an aluminium foil layer.

Usually, all be adhesively fixed between described polyester layer, metal level, nylon layer, metallocene PE layer, polyethylene or the polypropylene layer through adhesive.

The composite construction of 7 layer materials of the present utility model and specific arrangement thereof have been mixed the advantage of each material in proper order, make the heat sealability of whole film and barrier obtain very big lifting.

Because the utilization of technique scheme, the advantage that the utility model compared with prior art has is:

1, film of the present utility model has good heat sealability, and the sealing-strength height has superior rising and seals temperature, and coefficient of friction is little, is fit to packing fast, and opening is good.

2, owing to added metal ingredient in the film of the present utility model, its barrier is strengthened greatly, its percentage elongation is a times of mill run, and resistance tocrocking promotes greatly; Its impact strength and hot strength all are eager to excel 50%～60% than mill run simultaneously.

3, film stretching intensity height of the present utility model, good rigidly have outstanding extensibility and counter-bending fatigue behaviour, collapsible millions of times; And heat-resisting, cold resistance is high, serviceability temperature can reach 120 degree, cold resistance-40 degree; Water preventing ability is splendid, is one of moistureproof damp proof optimal material, water absorption rate＜0.01%; Can be used for high-temperature retort bag, the packing of household supplies and sterilization medical treatment.

4, the utility model is simple in structure, and low cost of manufacture is fit to promote the use of.

Description of drawings

Fig. 1 is the cutaway view of the utility model embodiment one;

Fig. 2 is the structural representation of the antistatic moisture barrier bag of the utility model embodiment one.

Wherein: 1, antistatic skin; 2, antistatic internal layer; 3, polyester layer; 4, metal level; 5, nylon layer; 6, metallocene PE layer; 7, polyethylene or polypropylene layer.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one

Shown in accompanying drawing 1～2, a kind of antistatic moisture-proof film, comprise body layer, be fixedly connected on the antistatic outer 1 in the body layer outside and be fixedly connected on the antistatic internal layer 2 of body layer inboard, described body layer is 5 layers of composite construction, is followed successively by polyester layer 3, metal level 4, nylon layer 5, metallocene PE layer 6 and polyethylene or polypropylene layer 7 from outside to inside.Described metal level is an aluminium foil layer.

The characteristic of PET (polyester layer) is: PET is a kind of water white transparency, very tough and tensile material, has favorable rigidity, hardness, wearability, folding resistance and dimensional stability; Density is that 1.3～1.38 fusing points are 255～265 ℃; In thermoplastic, its obdurability is maximum, is poly 5～10 times; Have good peculiar smell permeability, air-tightness and the moisture resistance of preventing, can use, can between-70 ℃～150 ℃, use at 120 ℃ long-term; PET is placed on the skin of material structure in addition, is because after this layer handle through surface corona, if customer requirement printing service, printing ink can be very firm attached on this layer, difficult drop-off.

Al Foil aluminium foil is mental package unique in the flexible packing material, and it blocks water, choke, lucifuge, guarantor's flavor property are that other any packaging material are difficult to be equal to, the characteristics of aluminium foil: nontoxic, tasteless, density is little in light weight, rich extensibility, thin thickness; Photophobism is good, and the high temperature low-temperature condition is stable, and temperature is-73 ℃～371 ℃ not harmomegathus distortion; Barrier is fabulous, and moistureproof, airtight, as can the to prevent inner package moisture absorption, oxidation and volatilization is rotten.

BOPA is a BON biaxially oriented nylon film, and characteristic is as follows: 1. the obdurability of excellence, and tensile strength, tearing strength, impact strength and resistanee to rupture all are one of best materials in the plastic material; 2. good barrier property, oil resistivity is splendid; 3. serviceability temperature wide ranges, 225 ℃ of fusing points can use between-60 ℃～130 ℃ for a long time; 4. optical good, light transmittance height, wholesomeness are suitable for packaging for foodstuff well.

The following characteristics of M-LLDPE metallocene PE: (1) adhesion, uncoiling are good, easily pack base materials with other and carry out compound; (2) have the good transparency and glossiness, face is smooth, clean, barrier, wholesomeness; (3) have excellent heat sealability, sealing-strength height, antipollution; (4) has superior mechanical performance, higher percentage elongation, impact strength, hot strength; (5) have superior rising and seal temperature, coefficient of friction is little, is fit to packing fast, and opening is good; (6) in composite, mainly play the effect that vacuumizes and seal, 95 ℃ of melt temperatures; (7) resistance tocrocking of metallocene PE is Duoed one times than conventional polyethylene; Owing to added metal ingredient, make the barrier of this film strengthen, percentage elongation is a times of common polythene percentage elongation, impact strength and hot strength are all than conventional polyethylene 50%-60% eager to excel in whatever one does simultaneously.

CPP cast polypropylene film characteristic: CPP film heat sealability is good, and good heat resistance can be 100～120 ℃ of uses, the anti-Zhang Wendu rate height of preserving moisture during high temperature, the boiling film can be sterilized in 135 ℃ steam and do not destroyed in 100 hours, can be used for high-temperature retort bag, the packing of household supplies and sterilization medical treatment.

Film of the present utility model is that packing goes up one of most popular film, and its characteristic is that hot strength height, good rigidly have outstanding extensibility and counter-bending fatigue behaviour, collapsible millions of times.Heat-resisting, cold resistance is high, serviceability temperature can reach 120 degree, cold resistance-40 degree.Water preventing ability is splendid, is one of moistureproof damp proof optimal material, water absorption rate＜0.01%.

The antistatic moisture barrier bag that is made by above-mentioned antistatic moisture-proof film can be widely used in the packing of electronic devices and components, optical precision element, also can be used for high-temperature retort bag, the packing of household supplies and sterilization medical treatment.

Claims

1. antistatic moisture-proof film, comprise body layer, be fixedly connected on the antistatic skin (1) in the body layer outside and be fixedly connected on the antistatic internal layer (2) of body layer inboard, it is characterized in that: described body layer is 5 layers of composite construction, is followed successively by polyester layer (3), metal level (4), nylon layer (5), metallocene PE layer (6) and polyethylene or polypropylene layer (7) from outside to inside.

2. antistatic moisture-proof film according to claim 1 is characterized in that: described metal level (4) is an aluminium foil layer.

3. antistatic moisture-proof film according to claim 1 is characterized in that: all be adhesively fixed through adhesive between described polyester layer (3), metal level (4), nylon layer (5), metallocene PE layer (6), polyethylene or the polypropylene layer (7).