CN2190629Y

CN2190629Y - Fresh-keeping composite bag for vegetable

Info

Publication number: CN2190629Y
Application number: CN 94205707
Authority: CN
Inventors: 高志铨
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-31
Filing date: 1994-03-31
Publication date: 1995-03-01
Anticipated expiration: 2004-03-31

Abstract

The utility model discloses a fresh-keeping composite bag for vegetables, which is composed of a poromeric container. The utility model is characterized in that the inner layer of the container is composed of a backout permeation barrier layer which can suck and exhaust water vapor in one direction, an absorbing layer tightly against the surface of the barrier layer, and an air-permeable water-proof membrane contained on the surface of the absorbing layer. The three layers are combined into the poromeric container. The fresh-keeping period of the vegetables put in the utility model can be prolonged from 50 to 60 days through direct cooling processing. Thus the utility model can meet the requirements of regional, seasonal, and disaster preventive supply and demand.

Description

Fresh-keeping composite bag for vegetable

The utility model relates to freshness protection package, refers to a kind of fresh-keeping complex pocket that is used for leaf vegetables especially.Since after the disaster caused by a windstorm rain evil, cause leaf vegetables to supply with shortage, imbalance of supply and demand, and spurt in prices drives the soaring of market vegetables and fruits price, so traditional leaf vegetables preservation method has multiple.A kind of employing packing method transports the wholesale market to and sells, and freshness date only be 3-6 days, and the time is long slightly, and the vegetables in the case can't the row of elimination loose because of respiration and the waste heat formed aqueous vapor of evapotranspiring, and make vegetables produce humidity and soften corruption, lose value of the product.

A kind of employing inner wrapping, see Fig. 1,2, vegetables are contained in the polythene bag that has breather hole, refill in the cartonning 19, make stacks of boxes build into the Jiong type and arrange 2a, borrow extraneous fan 3a high wind to be blown in the bag, the aqueous vapor of vegetables evaporation is discharged and the reduction temperature, then send into 2 ℃ of reefer 0 ￣, suppress the respiration rate of greengrocery, prolong freshness, be generally 5-10 days, but because the vegetables in the bag are still doing breathing slowly, aqueous vapor that spues and carbon dichloride can't obtain suitable eliminating, equally also can make vegetables rot to be difficult for stored for a long time, also or take out vegetables, again because of the temperature difference, pressure reduction is big, and is very fast softening, corruption must be sold as early as possible.

The purpose of this utility model is to provide a kind of and prolongs storage period, and satisfies delicacies from south china north fortune, seasonal variety, and the demand of taking precautions against natural calamities property, to reach protection against the tide, it is fresh-keeping to take a breath, and directly refrigeration reduces operation, cost-cutting, the purpose of increasing economic efficiency.

The fresh-keeping complex pocket that the purpose of this utility model is achieved in that leaf vegetables is made up of ventilative container, it is characterized in that: the internal layer of container oozes barrier layer and is close to the absorbed layer on barrier layer surface and is included in the breathable waterproof film on absorbed layer surface to the backspace of suction aqueous vapor for making folk prescription, and three layers are combined into ventilative container.

Advantage of the present utility model is: barrier layer is oozed in backspace can make the aqueous vapor that folk prescription is produced to the suction leaf vegetables; Absorbed layer can be preserved the water adsorption in the barrier layer institute suction aqueous vapor live, and allows the gas penetration discharge; The membrane waterproofing of permeability to air can prevent the water evaporates of absorbed layer, and the carbon dioxide penetration is discharged, and the vegetables through refrigeration can prolong storage period like this, 50-60 days, and can satisfy regionality, the leaf vegetables supply and demand requirement of taking precautions against natural calamities property has improved economic benefit.

Concrete structure provides by following examples and accompanying drawing thereof:

Fig. 1 is the cold-working industry diagrammatic sketch of prior art.

Fig. 2 is the arrangement diagrammatic sketch of prior art.

Fig. 3 is the utility model stereo appearance figure.

Fig. 4 is the utility model structural representation.

Fig. 5 implements illustration for the utility model.

Fig. 6 is the utility model refrigeration scheme drawing.

Referring to Fig. 3-6, the fresh-keeping complex pocket of leaf vegetables is made up of ventilative container, it is characterized in that: the internal layer of container 10 oozes barrier layer 1 and the breathable waterproof film being close to the absorbed layer 2 on barrier layer 1 surface and being included in the absorbed layer surface is combined into ventilative container 10 for 3, three layers for making folk prescription to the backspace of suction aqueous vapor.Backspace in this container 10 is oozed barrier layer 1 and is the adhesive-bonded fabric material, its interior tissue lines have can do folk prescription to suction leaf vegetables 4 the capillary tub 11 of the moisture content that produces 12 or carbon dioxide 13, and can effectively intercept moisture content or carbon dioxide backspace infiltration, make vegetable surface keep not dampness, in order to long term storage; Absorbed layer 2 is the suction material, barrier layer 1 folk prescription can be adsorbed preservation firmly to the moisture content 12 of institute's suction, and allow carbon dioxide 13 gas penetrations discharge, and it is softening, rotten that leaf vegetables is avoided by aqueous vapor; Membrane waterproofing 3 adds the glued membrane that the zeolite raw material forms inorganic porous matter molecular structure for the PE bag, can absorb and eliminate carbon dioxide 13 gases that seen through by absorbed layer 2, make packing and storing interior vegetables and be subjected to the influence of carbon dioxide, suitably to slow down its speed of growth, suppress catabiosis, make vegetables keep bud green can be not withered and yellow; Membrane waterproofing 3 can prevent that the moisture content of absorbed layer 2 externally runs off and evapotranspires (because of reefer cold air height is the big major cause of loss moisture of evapotranspiring in addition.）

Fresh-keeping in a word complex pocket can place leaf vegetables in the bag, directly send into reefer and refrigerated, and can absorb bag moisture content that interior leaf vegetables evapotranspires according to intercepting with absorbed layer, and equilibrium relative humidity (ERH) reaches leaf vegetables refrigeration protection against the tide, ventilation, fresh-keeping purpose.

Below by concrete empirical value preceence of the present utility model is described.

Leaf vegetables	Packing	Refrigerant temperature	Humidity %	Freezing point ℃	Number of days
						Pakchoi	a b	0－2 0－2	90－95 90－95	－0.5 -0.5	3 30-40
Blue or green river dish	a b	0－2 0－2	90－95 90－95	-0.6 -0.6	6 50-60

Leaf vegetables	Packing	Refrigerant temperature	Humidity %	Freezing point ℃	Number of days
						Cabbage	a b	1 1	90-95 90-95	-1 -1	20 50-60
Spinach	a b	0-2 0-2	90-95 90-95	-0.5 -0.5	6 50-60
						The mustard leaf vegetables	a b	1-2 1-2	90-95 90-95	-0.5 -0.5	10 50-60
Cauliflower	a b	1-2 1-2	90-95 90-95	-1 -1	20 40－50
						Wan Dou Clip	a b	0-1 0-1	90-95 90-95	-1 -1	20 50-60

Indicate: a packaging bag is a prior art, and the b packaging bag is the utility model, and the date is a freshness date.From table, can find out, equate at refrigerant temperature, humidity is identical, under the identical situation of cold spot, and various Vegetable Preservation phase differences, but the similar Vegetable Preservation phase, after using the utility model, freshness date has improved greatly, has broken through traditional preservation method fully, so can satisfy leaf vegetables supply and demand requirement regional, seasonal, taking precautions against natural calamities property, strengthen the moving function of far products refrigeration accumulating and create better economic benefit.

Claims

1, the fresh-keeping complex pocket of leaf vegetables is made up of ventilative container, it is characterized in that: the internal layer of container oozes barrier layer and is close to the absorbed layer on barrier layer surface and is included in the breathable waterproof film on absorbed layer surface to the backspace of suction aqueous vapor for making folk prescription, and three layers are combined into ventilative container.

2, the fresh-keeping complex pocket of leaf vegetables according to claim 1 is characterized in that: it is the adhesive-bonded fabric material that barrier layer is oozed in backspace, and its interior tissue lines has can make folk prescription to suction moisture content that leaf vegetables produces or carbon-dioxide capillary tub.

3, the fresh-keeping complex pocket of leaf vegetables according to claim 1 is characterized in that: absorbed layer is the suction material.

4, the fresh-keeping complex pocket of leaf vegetables according to claim 1 is characterized in that: membrane waterproofing adds the glued membrane that the zeolite raw material forms inorganic porous matter molecular structure for the PE bag.