CN1279199A

CN1279199A - Combined polyester bottle for beer

Info

Publication number: CN1279199A
Application number: CN 00122009
Authority: CN
Inventors: 陆向前
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-19
Filing date: 2000-07-19
Publication date: 2001-01-10

Abstract

A combined polyester bottle for beer is prepared from ethylanediester polynaphthylformate (8-92 Wt.%, 15 Wt.% is optimal) and ethylanediester polyterephthalate (8-92Wt, 85 Wt.% is optimal). Its advantages include antiexplosion and antiwear natures, light weight, high acid and alkali resistance, and no environmental pollution.

Description

Combined polyester beer bottle

The invention belongs to the material of making beer bottle.

Now beer bottle all adopts the glass manufacturing, and its critical defect is an explosive, gives that the people is healthy and safe to bring threat; Heavy Weight, inconvenience store and transport, are difficult to break the limitation of beer local produce-local market.A large amount of beverage bottles that use on the market, though can not explode and convenient transportation in light weight, this beverage bottle made from poly terephthalic acid second two fat (being called for short PET) can not be used for splendid attire beer, its reason has following several respects:

1, heat-resisting quantity is poor, and can only be applicable to does not need the common beverages produced under the hot conditions.And behind beer filling, need high temperature sterilization, when reaching 64.4 ℃ of pasteurization requirements, pressure of the inside of a bottle surpasses 8kg/cm ², if use the PET bottled beer, then distortion gas leakage for a long time;

2, barrier properties for gases is poor, a large amount of CO in the beer ₂Easily see through bottle and leak, and the ultraviolet light barrier property is poor, ultraviolet light and O ₂Enter and make the beer that contains the useful large amount of organic of people apt to deteriorate in the bottle.

In sum, find at present the beer bottle made of the plastics of making beverage bottle on the market as yet.

The present invention seeks to shortcoming, the beer bottle that provides a kind of combined polyester plastics in light weight, high temperature resistant, that barrier properties for gases is good, the ultraviolet light barrier property by force, can not explode hurts sb.'s feelings to make at prior art.

Take technical scheme as follows for achieving the above object:

Beer bottle material of the present invention is mainly combined by poly-naphthalenedicarboxylic acid second two fat (being called for short PEN) and two kinds of polyesters of polyethylene terephthalate (PET), and its weight content PEN accounts for 8～92%, and PET accounts for 92～8%.Other batching has affinity agent, Masterbatch, just is used to improve affinity and color and luster, no substantial role.Above-mentioned component through the granulation that regroups, injection moulding, blow type and become beer bottle.

Advantage of the present invention:

1, compares with beer bottle: can not explode and hurt sb.'s feelings, guarantee personal safety; In light weight only is glass bottle 1/10, can reduce traffic cost greatly, breaks through beer local produce-local market boundary, and favourable expansion is sold, and improves the business economic benefit;

2, compare with the PET bottle:

(1) heatproof, withstand voltage can be born the work down of high temperature, condition of high voltage, reaches 64.4 ℃ in temperature, and pressure of the inside of a bottle reaches 8kg/cm ²The time, beer bottle is indeformable, air tight;

(2) barrier properties for gases is good, because of PEN to water vapour, O ₂, CO ₂Deng gas permeation rate is the 1/3-1/5 of PET, and the ultraviolet light barrier property is good, and it is the ultraviolet light of 320-380mm that PEN can block the wavelength that can see through PET, so the quality of the favourable maintenance bottled beer of beer bottle of the present invention;

(3) can carry out warm acid or aqueous slkali washing to returnable bottle, can not be out of shape, be convenient to repeat reclaim and use, and the PET bottle generally be disposable use;

(4) resistance to abrasion is better, still can keep any surface finish after being repeatedly used.

3, this beer bottle not only can repeated usage, even be done for, also can fragmentation mixes in the new raw material system bottle, therefore unlikely contaminated environment again as raw material.

4, this bottle material avirulence is suitable for beverage packaging.

The embodiment of technical solution of the present invention:

Through test of many times, the best component weight content of material of the present invention is: PEN accounts for 15%, and PET is 85%.

Manufactured experimently 500 milliliters beer bottle, through the real dress of West Lake beer, test results is withstand voltage after the can, and heatproof and gas permeation amount can both reach beer filling and preserve requirement.(the longest existing holding time has reached three months, and great change is not found in uncork).

Claims

1, combined polyester beer bottle, it is characterized in that the beer bottle material is made up of poly-naphthalenedicarboxylic acid second two fat and poly terephthalic acid second two fat substantially, the former is 8-92% for its weight content, and the latter is 92-8%, also comprise affinity agent and Masterbatch, through the granulation that regroups, injection moulding, be blow molded into beer bottle.

2, according to the described combined polyester beer bottle of claim 1, it is characterized in that the content that best component content is Polyethylene Naphthalate is 15%, poly terephthalic acid second two fat content are 85%.