JPH0767746B2 - Method for manufacturing cushioning material made from beverage carton waste, etc. - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a cushioning material used for packing articles, etc., using wastes of beverage cartons such as milk packs and liquor packs as raw materials.

[0002]

2. Description of the Related Art To the extent known to the inventor, there seems to be no method for manufacturing a cushioning material according to the present invention. As the cushioning material, there is foamed styrene or the like.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Recently, beverage cartons discarded from households and spoiled paper discharged from pack laminating factory are partially recycled as recycled waste paper, but double-sided plastic. Wastes such as beverage cartons made of laminated paper and aluminum foil laminated paper are difficult to peel and pulp, and are therefore landfilled or incinerated as prohibited items, which is a problem in terms of resource conservation and pollution. Has been done.

The present invention provides not only a new cushioning material but also resource saving by providing a method for manufacturing a cushioning material which is used as a raw material for the packing of articles by using the wastes which have been landfilled or incinerated. , The purpose is to help prevent pollution.

[0005]

[Problems to be Solved by the Invention] A method of manufacturing a cushioning material using waste as a raw material which achieves the above-mentioned object is a waste of a carton for beverages made of polyethylene laminated paper and a loss discharged from these processing plants. A chip made of paper or a mixture of the polyethylene laminated paper chip and the aluminum foil laminated paper chip is housed in a mold and gently pressed by a pressing press, and the microwave is applied in the gently pressed state. After that, natural cooling or forced cooling is performed.

[0006]

[Function] By radiating microwaves with the plastic-laminated paper chips compressed gently, the plastic layer of each chip melts due to internal heating due to the presence of the water-containing chip and the air layer between each chip. The chips are attached to each other by cooling, and are cooled to solidify while leaving voids.

[0007]

As described above, the above-mentioned action solidifies the chips leaving a gap between them, so that a product having cushioning properties can be manufactured, which is used for various purposes such as a cushioning material for packing articles and a substitute material for honeycomb core material. Not only can it be done, but since it can be manufactured in a short time, such as slow compression and microwave irradiation, workability and productivity are good, and the use of wastes contributes to resource conservation and pollution prevention.

[0008]

[Examples] Wastes from beverage cartons made of polyethylene-laminated paper and spoiled paper discharged from these processing plants were chipped into 5 mm squares with a chipper, and 100 g of the chips were put into a cylindrical molding die having a diameter of 80 mm. 100m
m and then 50 mm with a compression press, that is, 2450 in a pressure maintaining state while gently compressing to the extent that there is a gap between each chip.
Microwave is irradiated with microwave power of 500 W and irradiation time of 120 seconds by microwave oven of MHz, the temperature is raised to 140 ° C, and after cooling is released, natural cooling or forced cooling such as cold air blowing is applied, and the diameter is 80 mm, high. A 50 mm thick cylindrical cushioning material is manufactured. It should be noted that it is possible to manufacture even the chip of the polyethylene laminated paper mixed with the chip of the aluminum foil laminated paper.

In this embodiment, microwaves are radiated in a state where the chips are housed in a molding die and gently compressed, and gaps are formed between the chips, and the chips each having a water content of 5 to 10% and each chip. The presence of the air layer between the microwaves promotes heating up to the inside, and the polyethylene layer of each chip melts at the heat temperature to attach each chip and solidifies by cooling, leaving a gap between each chip. Since it serves as a cushioning material, it can be manufactured in a short time such as slow compression and microwave irradiation, so it has good workability and productivity. The cushioning material has a cushioning effect because there are voids between each chip, and packing of articles Not only can it be used for a wide range of purposes, such as for use as a substitute for honeycomb core materials, but also for the production of conventional styrofoam cushioning materials without the generation of toxic gases due to incineration after use. Saving by using broke Source, in which Ekisuru to pollution prevention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B29K 105: 26 (56) References JP-A-51-74977 (JP, A) JP-A-49- 43463 (JP, A) JP-A-51-52466 (JP, A) JP-A-46-2088 (JP, A) JP-A-4-45879 (JP, A)

Claims (1)

[Claims] 1. A waste carton waste made of polyethylene laminated paper and spoiled paper discharged from these processing plants are made into chips, or the polyethylene laminated paper chips are made of aluminum foil laminated paper chips. Manufacturing of a cushioning material made of waste that is naturally cooled or forcibly cooled after it is housed in a molding die, gently pressed by a pressing press, and irradiated with microwaves in the gently pressed state. Method.