CN1569461A - Paper and plastic full degraded highly sealed composite packaging section bar - Google Patents

Abstract

The invention relates to material packaging section bar, especially relates to fully decomposed high sealed compound packaging section bar for producing package bag or box. The feature is: the section bar has fiver layers: the first layer is paper, the second layer is decomposed painting layer, and the third layer is aluminum foil, the fourth layer is decomposed coating material layer, the third layer is decomposable ethane film layer. The decomposed coating layer is pasted to the first layer and the third layer; the decomposed coating is connected to another surface of the third layer and the fifth layer. The product reduces the white contamination, and it protects the environment effectively.

Description

The high-fall high sealing composite packaging section bar of separating of paper

Technical field

The present invention relates to the material package section bar, especially for the high-fall high sealing composite packaging section bar of separating of paper of making packaging bag or box.

Background technology

Paper bag that China is popular in the market or carton package adopt paper and polyethylene coated to form, because poly sealing property is undesirable, air-tightness can only reach 97%, causing is free gas cut to go in the packaging bag, thereby make the article in the packaging bag, especially effective period of food quality shortens, easily moldy metamorphism.When making this packaging bag or box, adopt compound good paper section bar in advance, on particular manufacturing craft, cut into the expansion shape of packaging bag or box then, moulding on special equipment at last.Because the polyethylene in this section bar is a plastic sheeting, does not possess the degradable performance, therefore a large amount of packaging bag or boxes that use this section bar to make cause white pollution after abandoning, and cause environment damage.How further to improve the air-tightness of paper-plastic package, thereby improve the shelf-life of packaging for foodstuff; How making packaging bag or the box utmost point high-fall separating in the short time after use, thereby avoid producing the pollution to environment, is a great problem of world today's environmental protection.

Summary of the invention

The objective of the invention is at above-mentioned defective, provide a kind of paper the high-fall high sealing composite packaging section bar of separating.

Technical scheme of the present invention is that section bar is made five layers, and ground floor is paper (1), and the second layer is the degraded coated bed of material (2), and the 3rd layer is aluminium foil (3), and the 4th layer is the degraded coated bed of material (4), and layer 5 is degradable polyethylene (PE) thin layer (5); The second layer degraded coated bed of material (2) is bonding with ground floor paper (1), the 3rd layer of aluminium foil (3) respectively; The 4th layer of degraded coated bed of material (4) is also bonding with the 3rd layer of aluminium foil (3) another side and layer 5 degradable polyethylene (PE) thin layer (5) respectively, constitutes the high-fall high sealing composite packaging section bar of separating of paper on the whole.

The thickness of said ground floor paper (1) is 0.05-0.5mm; The second layer degraded coated bed of material (2) thickness is

0.015-0.04mm; The thickness of the 3rd layer of aluminium foil (3) is 0.006-0.02mm; The 4th layer of degraded coated bed of material (4) thickness is 0.015-0.04mm; The thickness of layer 5 degradable polyethylene (PE) is 0.02-0.10mm.

The said second layer and the 4th layer of degraded coated bed of material can adopt the polyamide adhesive.

Advantage of the present invention is that paper (1) outer surface can carry out colored printing, but glazing, and itself again can be moistureproof; Owing to high-obstruction aluminium foil (3) layer is arranged, so sealing property is fine, does not directly contact material again, can prolong the shelf-life 3-4 of package; Owing to adopt the degradable coated bed of material (2) (4), degradable polyethylene (PE) thin layer (5), under the natural conditions, under sunlight, water and action of microorganisms, as long as packaging bag that this section bar is made or box are all degradeds in 6-8 month in the open air; Paper (1) is the very easy degraded of string; Therefore aluminium foil (3) thickness degrade under the also very easy natural conditions in the open air as thin as a wafer, thereby avoided the white pollution to environment.Therefore can be widely used in the material of packaged food class such as melon seeds, milk powder, beverage etc.

Description of drawings

Fig. 1 is an interlayer structure schematic diagram of the present invention.

The specific embodiment

Further describe embodiment below in conjunction with accompanying drawing.

With reference to Fig. 1,1-paper, 2-degraded coated material, 3-aluminium foil, 4-degraded coated material, 5-degradable polyethylene (PE) film.The present invention is used to make the packaging bag of materials such as packaged food or the section bar of box, and specifically the expansion shape according to packaging bag or box cuts, and makes moulding then.This profile structure has five layers from cross-section analysis, and ground floor is paper (1), and the thickness of paper (1) is 0.05-0.5mm, generally adopts brown paper, as 50 gram paper; The second layer is the degraded coated bed of material (2), and its thickness is 0.015-0.04mm; The 3rd layer is aluminium foil (3), and its thickness adopts 0.006-0.02mm; The 4th layer is again the degraded coated bed of material (4), and its thickness is identical with the second layer; Layer 5 degradable polyethylene (PE) thin layer (5), its thickness is 0.02-0.10mm.The degraded coated bed of material (2) (4) can adopt the adhesive polyamide.The compound of section bar carries out on special equipment.Can carry out colored printing on ground floor paper (1) outer surface, but glazing, printing word and pattern make packaging bag or box outer surfac bright in luster, and literal is clear, and pattern is true to nature, easily printing.Layer 5 is degradable polyethylene (PE) film, and is nontoxic, transparent, can be used for the packing of foodstuff material.This section bar product is to be rolled into tubular, when making packaging bag or box, processes on special equipment.

Claims (3)

1, the high-fall high sealing composite packaging section bar of separating of paper, it is characterized in that this profile structure has five layers, ground floor is paper (1), the second layer is the degraded coated bed of material (2), the 3rd layer is aluminium foil (3), the 4th layer is the degraded coated bed of material (4), and layer 5 is degradable polyethylene (PE) thin layer (5); The second layer degraded coated bed of material (2) is bonding with ground floor paper (1), the 3rd layer of aluminium foil (3) respectively; The 4th layer of degraded coated bed of material (4) is also bonding with the 3rd layer of aluminium foil (3) another side and layer 5 degradable polyethylene (PE) thin layer (5) respectively.

2, according to the high-fall high sealing composite packaging section bar of separating of the said paper of claim 1, it is characterized in that the thickness of said ground floor paper (1) is 0.05-0.5mm; The second layer degraded coated bed of material (2) thickness is 0.015-0.04mm; The thickness of the 3rd layer of aluminium foil (3) is 0.006-0.02mm; The 4th layer of degraded coated bed of material (4) thickness is 0.015-0.04mm; The thickness of layer 5 degradable polyethylene (PE) thin layer (5) is 0.02-0.10mm.

3,, it is characterized in that the said second layer and the 4th layer of degraded coated bed of material can adopt the polyamide adhesive according to claim 1 or the high-fall high sealing composite packaging section bar of separating of 2 said papers.

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