Degradable bag containing aluminum foil and preparation method thereof

Abstract

The invention discloses a degradable bag containing aluminum foil. The degradable bag containing aluminum foil is prepared from the following raw materials by weight: 10-20 parts of wheat straw pulp fiber, 30-50 parts of purple sweet potato powder, 80-100 parts of tapioca flour, 90-120 parts of shell powder, 100-130 parts of corn flour, 70-100 parts of pumpkin peel powder and 70-100 parts of coconut shell powder. A main body of the degradable bag containing aluminum foil is mainly composed of a first layer of base material, a second layer of base material and a third layer of base material from outside to inside, the first layer of base material is kraft paper or PLA, and the second layer of base material is PLA aluminum plated foil; and the third layer of base material is PLA. The preparation method of the degradable bag containing aluminum foil comprises the following steps of: bag lamination: coating the surface of kraft paper with an environment-friendly glue, carrying out extrusion compounding on the kraft paper in a wet state and the first layer of PLA base material through a compounding device, and then carrying out extrusion compounding with the second layer of PLA base material through a compounding device to prepare a compound semi-finished product; and drying and forming: removing the solvent by drying in a curing chamber, and compounding the three layers of base materials together. The degradable bag containing aluminum foil provided by the invention is environmentally friendly and beneficial to land planting.

Description

technical field

[0001] The invention relates to the technical field of packaging paper, in particular to a degradable bag containing aluminum foil, in particular to a degradable bag containing aluminum foil and a preparation method thereof. Background technique

[0002] Plastic bags are bags made of plastic (commonly used plastics include polyethylene, polypropylene, polyester, nylon, etc.) as the main raw material. They are indispensable items in people's daily life and are often used to hold other items. thing. It is widely used because of its advantages of cheapness, light weight, large capacity and easy storage, but its production and use are banned by some countries due to the disadvantages of extremely long degradation cycle and difficult disposal of plastic bags. According to relevant national laws and regulations, supermarkets restrict the use of plastic bags, and foreign countries, Europe and the United States and other countries advocate the trend of using environ...

Examples

Embodiment 1

[0029] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 10 parts of straw pulp fiber, 30 parts of purple sweet potato flour, 80 parts of cassava flour, 30 parts of chitosan, 90 parts of shell powder, and 100 parts of corn flour 70 parts of pumpkin peel powder, 70 parts of coconut shell powder, 15 parts of polylactic acid and 50 parts of melaleuca bark powder; The first layer of base material and the third layer of base material are synthesized, the first layer of base material is kraft paper, the second layer of base material is PLA aluminized foil; the third layer of base material is PLA.

[0030] The preparation method of the present embodiment comprises the following steps:

[0031] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0032] (S2) Preparation of the first mixed liquid material: first mix straw pulp fiber, purple sweet potato powder, tapioca flour, chitosan, s...

Embodiment 2

[0046] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 15 parts of straw pulp fiber, 40 parts of purple sweet potato flour, 90 parts of cassava flour, 40 parts of chitosan, 100 parts of shell powder, and 100 parts of corn flour 80 parts of pumpkin peel powder, 70 parts of coconut shell powder, 15 parts of polylactic acid and 50 parts of melaleuca bark powder. The main body of the biodegradable bag containing aluminum foil is mainly composed of the first layer of substrate, the second layer of substrate and the third layer of substrate from the outside to the inside. The first layer of substrate is kraft paper, the second layer of substrate and the third layer The substrates are all PLA.

[0047] The preparation method of the present embodiment comprises the following steps:

[0048] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0049] (S2) Preparation of the first mixe...

Embodiment 3

[0063] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 20 parts of straw pulp fiber, 50 parts of purple sweet potato powder, 100 parts of cassava flour, 60 parts of chitosan, 30 parts, 48 ​​parts, shell powder 120 parts, corn flour 130 parts, pumpkin husk flour 100 parts and coconut shell flour 100 parts. The main body of the biodegradable bag containing aluminum foil is mainly composed of the first layer of substrate, the second layer of substrate and the third layer of substrate from the outside to the inside. The first layer of substrate is kraft paper, the second layer of substrate and the third layer The substrates are all PLA.

[0064] The preparation method of the present embodiment comprises the following steps:

[0065] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0066] (S2) Preparation of the first mixed liquid material: first mix straw pulp fiber, purple s...

technical field

[0001] The invention relates to the technical field of packaging paper, in particular to a degradable bag containing aluminum foil, in particular to a degradable bag containing aluminum foil and a preparation method thereof. Background technique

[0002] Plastic bags are bags made of plastic (commonly used plastics include polyethylene, polypropylene, polyester, nylon, etc.) as the main raw material. They are indispensable items in people's daily life and are often used to hold other items. thing. It is widely used because of its advantages of cheapness, light weight, large capacity and easy storage, but its production and use are banned by some countries due to the disadvantages of extremely long degradation cycle and difficult disposal of plastic bags. According to relevant national laws and regulations, supermarkets restrict the use of plastic bags, and foreign countries, Europe and the United States and other countries advocate the trend of using environ...

Examples

Embodiment 1

[0029] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 10 parts of straw pulp fiber, 30 parts of purple sweet potato flour, 80 parts of cassava flour, 30 parts of chitosan, 90 parts of shell powder, and 100 parts of corn flour 70 parts of pumpkin peel powder, 70 parts of coconut shell powder, 15 parts of polylactic acid and 50 parts of melaleuca bark powder; The first layer of base material and the third layer of base material are synthesized, the first layer of base material is kraft paper, the second layer of base material is PLA aluminized foil; the third layer of base material is PLA.

[0030] The preparation method of the present embodiment comprises the following steps:

[0031] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0032] (S2) Preparation of the first mixed liquid material: first mix straw pulp fiber, purple sweet potato powder, tapioca flour, chitosan, s...

Embodiment 2

[0046] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 15 parts of straw pulp fiber, 40 parts of purple sweet potato flour, 90 parts of cassava flour, 40 parts of chitosan, 100 parts of shell powder, and 100 parts of corn flour 80 parts of pumpkin peel powder, 70 parts of coconut shell powder, 15 parts of polylactic acid and 50 parts of melaleuca bark powder. The main body of the biodegradable bag containing aluminum foil is mainly composed of the first layer of substrate, the second layer of substrate and the third layer of substrate from the outside to the inside. The first layer of substrate is kraft paper, the second layer of substrate and the third layer The substrates are all PLA.

[0047] The preparation method of the present embodiment comprises the following steps:

[0048] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0049] (S2) Preparation of the first mixe...

Embodiment 3

[0063] A degradable bag containing aluminum foil, prepared from the following raw materials in parts by weight: 20 parts of straw pulp fiber, 50 parts of purple sweet potato powder, 100 parts of cassava flour, 60 parts of chitosan, 30 parts, 48 ​​parts, shell powder 120 parts, corn flour 130 parts, pumpkin husk flour 100 parts and coconut shell flour 100 parts. The main body of the biodegradable bag containing aluminum foil is mainly composed of the first layer of substrate, the second layer of substrate and the third layer of substrate from the outside to the inside. The first layer of substrate is kraft paper, the second layer of substrate and the third layer The substrates are all PLA.

[0064] The preparation method of the present embodiment comprises the following steps:

[0065] (S1) Weighing raw materials: weighing raw materials according to the ratio of parts by weight;

[0066] (S2) Preparation of the first mixed liquid material: first mix straw pulp fiber, purple s...

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