CN2270023Y

CN2270023Y - Permeable composite backing bag

Info

Publication number: CN2270023Y
Application number: CN 96244229
Authority: CN
Inventors: 蔡文善
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-20
Filing date: 1996-11-20
Publication date: 1997-12-10
Anticipated expiration: 2006-11-20

Abstract

The utility model relates to a permeable composite packing bag, belonging to the packing supplies. The packaging bag is composed of three layers. An outer layer is made of polypropylene in weaving way, and single filament tension of the latitude and the longitude is not less than 1000 dennies. An ultraviolet sunscreen agent is applied on the surface of the outer layer; a middle layer is composed of high-pressure polyethylene and glass fibre powder which are compounded; an inner liner is composed of the high and low pressure polyethylene and the glass fibre powder which are mixed together. The packing bag has the outer, the middle and the inner layers of different length and width sizes. The outer layer has appreciably small length and width sizes, the middle layer has the appreciably large length and width sizes, and the inner liner has the length and width sizes between the length and width sizes of the outer layer and the middle layer. Namely, the sizes of the inner liner is larger than the sizes of the outer layer and less than the sizes of the middle layer. When bag openings of both ends are sewn, the sewing openings of the three layers need to be aligned. The edges of the bag openings is coated and sealed by he glass fiber cloth. After a thread pulling end of the sealing thread of the packing bag is provided with a slipknot, the thread pulling end is affixed to the surface of the outer layer of the packing bag by a self-adhesive tape, and the thread end is exposed on the exterior of the self-adhesive tape.

Description

The vapor-permeable type combined package bag

The utility model belongs to a kind of package packing supplies.

The situation of the original technology relevant with the utility model is as follows: in order to solve all powder shape article such as packing cement, feed, cereal, starch, salt, sugar, chemical fertilizer, mineral products, people have manufactured and designed various packaging bags, as papery bag, plastic bag, cloth bag, gunnysack, single bag, multilayer bag, complex pocket or the like.Specifically as again printed moulded braided bag, paper plastic combined package bag, the water-soluble husky complex cement packaging bag of polyvinyl, the cold complex pocket of high strength glue, hot complex pocket, paper become tube bag etc.The intensity height that these packaging bags have, the good permeability that has, the protection against the tide that has, high temperature resistant, the antiageing that has, the packaging bag that has can be reclaimed advantages such as repeated use is with low cost or free from environmental pollution, but no matter which kind of packaging bag can not all advantages all possess simultaneously.

The purpose of this utility model be for design the good and intensity of a kind of permeability high not only can be moistureproof, high temperature resistant, antiageing but also the low-cost packaging bag that can also reclaim use free from environmental pollution.

Technical key point of the present utility model is that packaging bag forms by three layers, outerly forms with polypropylene woven, and longitude and latitude monofilament pulling force is not less than 1000 red Buddhist nuns, and this laminar surface scribbles ultraviolet sun-screening agent; The middle level is composited by high pressure polyethylene, fibrous glass powder; Liner is mixed by high and low pressure polyethylene, fibrous glass powder.This packaging bag is outer, in, interior three layers length and width size is different; Outer field length and width undersized, the length and width size in middle level is bigger, the length and width size of liner between outer and middle level size, promptly the liner size greater than outer field size less than the size in middle level.Three layers sealing will align when sewing up the sack at two, and sack seals with the glass wool cloth bound edge.The pull wire head of packaging bag enclosing line make a call to behind the slip-knot with non-drying glue stick on the outer table of packaging bag to, and the end of a thread is exposed at outside the non-drying glue.

The utility model is that example and original cement package bags relatively have following advantage with dress cement:

1. the energy antiultraviolet has the excellent protection performance to cement, can not conduct heat when cement runs into sunlight in transit; The space of every layer of relay storage can have from oxidizing gas 360 ° of orientation rows.

2. temperature is at 20 ℃ ± 5 ℃, and humidity has from calcium oxide gas and freely discharges when the indoor storage of 40%-70%, and cement quality is had no adverse effects.

3. have stronger firmness, individual layer can bear 700 kilograms of longitude pulling force, and 600 kilograms of latitude pulling force fill behind the cement that to fall bag six times not damaged.

4. the sack suture indicates readily removable heading flash, make out to contain easily, and the ladle-to-ladle residual cement of totally not staying, used sack can reclaim, and is free from environmental pollution.

5. because the sack suture has taked to paste the location protection, avoided lignilite by unexpected tractive and the phenomenon that opening is scattered.

6. domestic raw MAT'L is abundant, cheap, the equipment of original production tubular Polywoven Bag is adjusted a little can be produced this packaging bag.

Above advantage also can embody when other material of packing.

Description of drawings:

Fig. 1 is package construction figure

The 1--skin

The 2--middle level

The 3--liner

Fig. 2 is the pull wire head scheme drawing of packaging bag enclosing line

4--fibrous glass edge-covering cloth

The 5--sealing line

The 6--non-drying glue

Embodiment:

With packing cement is that size cutting in the example according to the form below is made:

Level	Effective length A ± 5	Width B ± 10
Level	Effective length A ± 5	Width B ± 10	Outer	720mm	420mm
The middle level	740mm	440mm	Outer	720mm	420mm
The middle level	740mm	440mm	Liner	740mm	430mm

The outer braiding by polypropylene forms, and longitude and latitude monofilament pulling force is 1000 red Buddhist nuns, and the surface scribbles ultraviolet sun-screening agent, every sq m 70 grams; The middle level is composited by high pressure polyethylene, fibrous glass powder, and color is a white, every sq m 25 grams; Liner is mixed and made into by the high and low pressure polyethylene fibrous glass, and color is blue look, every sq m 20 grams.When sealing, the three layers of sack that align, sack is sewed up with the glass wool cloth bound edge.Stick on the packaging bag superficies with non-drying glue after the head of taking out stitches of packaging bag enclosing line is made a call to a slip-knot, and the end of a thread is exposed at outside the non-drying glue; Need only one when unpacking and draw the outer the end of a thread of non-drying glue, whole bag mouth just is opened.The non-drying glue face can be printed trade mark and the sign of taking out stitches.

Claims

1. plastics vapor-permeable type combined package bag is characterized in that packaging bag forms by three layers, outerly forms with polypropylene woven, and longitude and latitude monofilament pulling force is not less than 1000 red Buddhist nuns, and this laminar surface scribbles ultraviolet sun-screening agent; The middle level is composited by high pressure polyethylene, fibrous glass powder; Liner is mixed by high and low pressure polyethylene, fibrous glass powder; This packaging bag is outer, in, the size of interior three layers of length and width is different; Outer field length and width undersized, the length and width size in middle level is bigger, the length and width size of liner between outer and middle level size, promptly the liner size greater than outer field size less than the size in middle level; Three layers sealing will align when sewing up the sack at two, and sack seals with the glass wool cloth bound edge.

2. packaging bag according to claim 1 sticks on the packaging bag superficies with non-drying glue after the pull wire head that it is characterized in that the packaging bag enclosing line is made a call to a slip-knot, and the end of a thread is exposed at outside the non-drying glue.