Bag refrigerator is an excellent helper in hot weather on a picnic and in a long trip. It and the products from premature damage will save, and protect cold drinks from heating. But it is worth such a bag in the store is not at all cheap. In this article we will tell how to independently make a refrigerator bag, which will cost you 5-6 times cheaper than a similar finished.
Necessary materials
You will need:
- Ordinary shopping bag with lightning or road. It will serve as the face of your future product.
- Isolon foil or foam, preferably double-sided. The minimum thickness of the insulation is 8-10 mm.
- Scotch metallized.
- Threads and needle or bilateral scotch.
- Marker.
- Scissors or stationery knife.
- Roulette construction or ruler.
- Velcro clasp.
Drawing
Measure the size of the bottom, the front and rear, the sides and the top of the bag. Since the thermos box from the insulation will be in the middle of the design, then its dimensions should be a little less than your bag. Take 5-8 cm from the frozers obtained and apply a conventional box in the form of a cross on the soleon. The cover of the thermos will be double, so draw one square of the appropriate size next to the front wall - at the top of the cross, and near the rear side - down. As a result, you must get a completely symmetric figure. Dorisinate additional allowances for joints on the sides of the front and rear wall in the amount of 5-7 cm and 3-5 cm around the perimeter of the rectangle cover at the bottom of the circuit.
Production of a box of insulation
Cut the insulation according to the drawing made. Bend the isolon according to the designated lines. At the same time, consider that if the foil on the material you only have on the one hand, then you need to position the reflective layer inside. Spread the sides of the box with double-sided tape or simply connect with threads and needles. Then suck the lip-tank to the lid. Instead of velcro, you can also use ordinary zipper.
Formation of the lid.
Close the lid on the velcro and connect the side allowance scotch, thus making a side.
Singing jigs
The place of the junctions is one of the weak places of thermal insulation. Therefore, you need to additionally smoke the seams with a metallized scotch with both the outside and inside. Then insert the resulting box in the bag. If two parts of the refrigerator bag are loosely adjacent and there is free space between them, it should be laid by the remaining pieces of the insulation or the rag.
Organization of space inside
Since such a bag will be used mainly for products, it is even desirable to put a package of durable plastic in it. If you have no suitable size on your farm, it can be sewn independently from fine glue. Also, for a convenient organization of supplies, partitions can be made inside.
Cold Batteries for Refrigerator Bags
For a longer cooling effect in the bag with a refrigerator, cold batteries are put. They can be bought in the store or do it yourself.
For homemade batteries, cold you will need:
- 4 liters of water;
- salt;
- wallpaper glue or gelatin;
- warmer or plastic bottle.
Periodically stirring, raw salt in 1 liter of water until it stops dissolving. The resulting concentrate is to divert 3 l of water and add wallpaper glue or gelatin according to the instructions. Additionally, you can add a blue or orange dye. Pour the resulting solution into plastic bottles or heating pads and place in the freezer until complete freezing. Such cold batteries due to the gel structure of the filler are melted much longer than ice.
Useful advice
In order for the low temperature in the refrigerator bag as long as possible, follow these rules:
- Fold only cold supplies. In no case placing frozen foods and vegetables or vegetables or fruit room temperature.
- Place the cold batteries at the bottom, under the lid, and also every 15 cm provisions.
- Try to open the bag as much as possible.
- For a better effect, each product should be placed in a plastic bag and cut over the paper.
As you can see, make a refrigerator bag with your own hands is not very difficult. Depending on the thickness of the insulation and the number of cold batteries, it will keep cold for 12-48 hours.
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