CN205871397U

CN205871397U - A cover area for encapsulating paper carrier band

Info

Publication number: CN205871397U
Application number: CN201620784334.7U
Authority: CN
Inventors: 陈小平; 其他发明人请求不公开姓名
Original assignee: Jiangxi Meiyuan Electronic Material Co Ltd
Current assignee: Jiangxi Meiyuan Electronic Material Co Ltd
Priority date: 2016-07-25
Filing date: 2016-07-25
Publication date: 2017-01-11
Anticipated expiration: 2026-07-25

Abstract

The utility model provides a when taking components and parts, the fibrous technical problem of pull -up paper can be solved, and a cover area for encapsulating paper carrier band that components and parts were taken is not influenced, it includes: a substrate layer for forming cover the main part in area and provide support intensity, be located on the substrate layer and be used for the reinforcing to cover the intermediate level of taking toughness, the coating is in first functional layer on the intermediate level, the cover is in second functional layer on the first functional layer, preferably, the power of being connected between first functional layer and the second functional layer is less than the power of being connected between second functional layer and the intermediate level, simultaneously, the power of being connected between first functional layer and the second functional layer also is less than the intermediate level with connection power between the substrate layer.

Description

For encapsulating the covering band of paper carrying belt

Technical field

This utility model relates to the packing technique field of electronic devices and components, particularly relates to a kind of for encapsulating paper carrying belt Cover band.

Background technology

The transport of electronic devices and components and use, it is generally required to use packaging supporting body, supporting body typically have paper carrying belt or Plastic carrier, carrier band is provided with the pocket of electronic devices and components shape, with housing electronic components and parts, after having received, on carrier band Surface is both needed to cover one layer of cover strip, and to prevent the electronic devices and components of carrier band storage from escaping out, also protection electronic devices and components are not subject to The interference of extraneous dust and electrostatic etc.；Cover strip both needed with storage carrier band face seal, again use electronic devices and components time with Storage carrier band surface is mutually peeled off；The envelope of a kind of electronic devices and components storage carrier band as disclosed in Application No. 201510335854X Dress band, including substrate layer, stabilized zone, articulamentum, intermediate layer and general adhesive layer, can seal with the surface of storage carrier band, Certain peeling force can be controlled again, peel away packaging belt when needed, expose electronic devices and components；The serviceability of packaging belt Also stable, do not have cracking, the situation of quick-fried band during curling, its plastics being primarily directed to receive electronic components and parts carry Band；And for paper carrying belt, adhesive layer resin is squeezed and easily penetrates in paper fiber, when taking components and parts, cover strip need to be peeled off Paper carrying belt, peeling force the most also pull-up can carry paper fiber (because during sealing before, resin penetrates in paper fiber), cause soft flocks Phenomenon, and general soft flocks size is more than components and parts, therefore can block the pocket of carrier band storage components and parts, affects taking of chip mounter With, and the general adhesive layer in above-mentioned patent is to paper carrying belt inapplicable, attachment force and peeling force are the most undesirable.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, it is provided that one is taking unit During device, it is possible to resolve the technical problem of pull-up paper fiber, and do not affect the covering for encapsulating paper carrying belt that components and parts are taken Band.

In order to realize the purpose of this utility model, the technical scheme that this utility model is used is:

Design a kind of covering band for encapsulating paper carrying belt, it is characterised in that: it includes: for forming the master covering band Body also provides the substrate layer of support strength；It is positioned on described substrate layer and for strengthening the intermediate layer covering band toughness；Coating The first functional layer on described intermediate layer；Cover the second functional layer on described first functional layer；

Preferably, the attachment force between described first functional layer and the second functional layer less than the second functional layer and intermediate layer it Between attachment force, meanwhile, the attachment force between described first functional layer and the second functional layer is also smaller than described intermediate layer with described Attachment force between substrate layer.

Preferably, described first functional layer is linear three embedding copolymers, meter by weight, described first functional layer or line Property three embedding copolymers include: the ethylene propylene copolymer of 20～60 parts, the Ethylene/Butylene of 40～80 parts.

Preferably, described Ethylene/Butylene is hydrogenated with by polystyrene and polybutadiene and obtains.

Preferably, described Ethylene/Butylene is the middle spring block of linear three embedding copolymers.

Preferably, by weight, described second functional layer includes nano tin oxide and the antimony mixing of 0.5～1.5 part Poly-different luxuriant diene after thing, the wax of 0.1～0.5 part, the SEBS(hydrogenation of 50～75 parts), the acrylate of 10～25 parts.

Preferably, described nano tin oxide is 80～95:5 with the mixing ratio of antimony.

Preferably, described wax is polyester wax.

Preferably, described intermediate layer is ethylene methyl acrylate copolymer layer.

Preferably, the thickness in described intermediate layer is 8 μm-16 μm.

Preferably, the thickness of described second functional layer is 1 μm-2 μm.

The beneficial effects of the utility model are:

This utility model is by selecting suitable first functional layer and the second functional layer, in use, its first functional layer And there is between paper carrying belt stable attachment force, and this attachment force is more than the connection between the first functional layer and the second functional layer Power, can make the first functional layer remain on carrier band during stripping, solve the technical problem of pull-up paper fiber when taking components and parts, And do not affect taking of components and parts；And improve cover strip softening point to a certain extent, do not have under hot and humid and melt glue Phenomenon.

Accompanying drawing explanation

Fig. 1 is cross-sectional view of the present utility model；

In figure: 1. substrate layer;2. intermediate layer;3. the first functional layer;4. the second functional layer.

Detailed description of the invention

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:

Embodiment 1: a kind of covering band for encapsulating paper carrying belt, sees Fig. 1；It includes for forming the master covering band Body also provides the substrate layer 1 of support strength；It is positioned on described substrate layer and for strengthening the intermediate layer 2 covering band toughness；It is coated with Overlay on the first functional layer 3 on described intermediate layer；Cover the second functional layer 4 on described first functional layer；Preferably, The thickness in described intermediate layer is 8 μm；The thickness of the second described functional layer is 1 μm.Further, the first described functional layer with Attachment force between second functional layer is less than the attachment force between the second functional layer and intermediate layer, meanwhile, described first functional layer And the attachment force between the second functional layer is also smaller than the attachment force between described intermediate layer and described substrate layer.

Preferably, the first described functional layer is linear three embedding copolymers, meter by weight, the first described functional layer Or linear three embedding copolymers include: the ethylene propylene copolymer of 20 parts, the Ethylene/Butylene of 40 parts, its described Ethylene/Butylene is Being obtained by polystyrene and polybutadiene hydrogenation, meanwhile, described Ethylene/Butylene is the middle spring of linear three embedding copolymers Block.

Further, by weight, the second described functional layer includes nano tin oxide and the antimony mixing of 0.5 part Poly-different luxuriant diene after thing, the wax of 0.1 part, the SEBS(hydrogenation of 50 parts), the acrylate of 10 parts, it is preferred that described nanoscale Stannum oxide is 80:5 with the mixing ratio of antimony；Described wax is polyester wax；Obtaining intermediate layer described in and is that ethylene methyl acrylate is total to Polymers layer.

In technique scheme, by setting the first functional layer and second functional layer of specific components, the first function can be made There is between layer and paper carrying belt stable attachment force, and this attachment force is more than the company between the first functional layer and the second functional layer Relay, when peeling off, the first functional layer remains on carrier band, solves the technical problem of pull-up paper fiber and does not affect components and parts Take.

And in this utility model, paper carrying belt is different from plastic carrier, so the second functional layer needs specific component Formula, the component of the second functional layer in this programme is better than tool between paper fiber is well bonded, and has heat-sealing Adhesive function, it is possible to realize covering band low temperature fast sealing, and the wax added in the design can migrate to surface, prevents from covering Belt surface bonds；And the attachment force that the first functional layer and the second functional layer have between the two, company between the two must be ensured Relay is less than the attachment force between the first functional layer and paper carrying belt, and the use of the first functional layer, the second functional layer is one Determine in degree, to improve cover strip softening point, under hot and humid, also do not have the phenomenon melting glue.

Embodiment 2, part same as in Example 1 repeats no more, and difference is:

The thickness in described intermediate layer is 16 μm；The thickness of the second described functional layer is 2 μm.

By weight, the first described functional layer or linear three embedding copolymers include: the ethylene propylene copolymer of 60 parts, The Ethylene/Butylene of 80 parts.

By weight, the second described functional layer include the nano tin oxide of 1.5 parts and antimony mixture, 0.5 part Poly-different luxuriant diene after wax, the SEBS(hydrogenation of 75 parts), the acrylate of 25 parts.

Described nano tin oxide is 95:5 with the mixing ratio of antimony.

Embodiment 3, part same as in Example 1 repeats no more, and difference is:

The thickness in described intermediate layer is 9,10,11,12,13 or 14 μm；The thickness of the second described functional layer is 1.2, 1.4,1.5,1.6 or 1.8 μm.

By weight, the first described functional layer or linear three embedding copolymers include: the ethylene propylene copolymer of 40 parts, The Ethylene/Butylene of 60 parts.

By weight, the second described functional layer include the nano tin oxide of 1.0 parts and antimony mixture, 0.3 part Poly-different luxuriant diene after wax, the SEBS(hydrogenation of 60 parts), the acrylate of 17 parts.

Described nano tin oxide is 87:5 with the mixing ratio of antimony.

Embodiment 4, part same as in Example 3 repeats no more, and difference is:

By weight, the first described functional layer or linear three embedding copolymers include: the ethylene, propylene of 25 or 50 parts is altogether Polymers, the Ethylene/Butylene of 50 or 70 parts.

By weight, the second described functional layer include the nano tin oxide of 0.7 or 1.2 part and antimony mixture, 0.2 Or the poly-different luxuriant diene after the wax of 0.4 part, the SEBS(hydrogenation of 55 or 70 parts), the acrylate of 15 or 22 parts.

Described nano tin oxide is 85 or 93:5 with the mixing ratio of antimony.

What embodiment of the present utility model was announced is preferred embodiment, but is not limited thereto, the common skill of this area Art personnel, easily according to above-described embodiment, understand spirit of the present utility model, and make different amplifications and change, but as long as Without departing from spirit of the present utility model, all in protection domain of the present utility model.

Claims

1. the covering band being used for encapsulating paper carrying belt, it is characterised in that: it includes:

For forming the main body covering band the substrate layer providing support strength；

It is positioned on described substrate layer and for strengthening the intermediate layer covering band toughness；

It is coated in the first functional layer on described intermediate layer；

Cover the second functional layer on described first functional layer；

Attachment force between described first functional layer and the second functional layer is less than the attachment force between the second functional layer and intermediate layer, Meanwhile, the attachment force between described first functional layer and the second functional layer is also smaller than between described intermediate layer and described substrate layer Attachment force.

2. the covering band for encapsulating paper carrying belt as claimed in claim 1, it is characterised in that: described intermediate layer is ethylene propylene E pioic acid methyl ester copolymer layer.

3. the covering band for encapsulating paper carrying belt as claimed in claim 1, it is characterised in that: the thickness in described intermediate layer is 8μm-16μm。

4. the covering band for encapsulating paper carrying belt as claimed in claim 1, it is characterised in that: the thickness of described second functional layer Degree is 1 μm-2 μm.