Oil-proof paper and preparation method thereof

Abstract

The invention discloses oil-proof paper and a preparation method thereof, and relates to the technical field of food packaging. The oil-proof paper comprises raw paper, the raw paper is dip-coated with a dip-coating glue solution, the components of the dip-coating glue solution comprise acrylic acid, and the acrylic acid is aqueous acrylic acid. According to the oil-proof paper and the preparationmethod thereof, the technical problem that oil-proof paper is unsafe to use in the prior art is solved. The oil-proof paper is stable in component, safe to use, free of harm to the environment, organisms and human health, simple in production process and low in production cost.

Description

technical field

[0001] The invention relates to the technical field of food packaging, in particular to an environment-friendly and fluorine-free greaseproof paper for food packaging and a preparation method thereof. Background technique

[0002] Grease-proof paper is a type of paper coated with an oil-repellent agent on the surface, which can resist the penetration and absorption of grease. It is widely used in the packaging of food such as hamburgers, baked bread, biscuits and other oily items.

[0003] At present, the oil-proof paper on the market is mainly divided into two categories: one is plastic-coated paper, and the other is paper coated with oil-proof chemicals on the surface. These two types of greaseproof paper have certain defects during use:

[0004] Plastic coated paper may release harmful organic substances when it comes into contact with high-temperature food, affecting human health;

[0005] The surface of paper coated with oil-repellent chemicals, fluori...

Examples

Embodiment 1

[0022] A kind of oil-proof paper, including base paper, dip-coated with dip-coating glue on the base paper. The composition of the dipping glue includes acrylic acid and water, that is, the dipping glue is a diluent of acrylic acid. In this embodiment, the acrylic acid is preferably water-based acrylic acid.

[0023] The concentration of the dip coating glue is 6-10%, that is, by weight percentage, acrylic acid accounts for 6-10%, and water accounts for 90-94%.

[0024] In this embodiment, the base paper is made from plant fiber pulp through disintegration, disintegration, refining and papermaking processes. In this embodiment, the preferred plant fiber pulp is a mixed fiber pulp formed by mixing coniferous pulp fibers and broadleaf pulp fibers. In terms of weight percentage, softwood pulp fibers account for 55-65%, and hardwood pulp fibers account for 35-45%.

[0025] The performance index of oil-proof paper of the present invention is as follows:

[0026] Quantitative: 62...

Embodiment 1 1

[0034] The invention relates to an oil-proof paper. The raw material ratio of the base paper is calculated by weight percentage. The softwood pulp fiber accounts for 62%, the broadleaf pulp fiber accounts for 38%, and the concentration of the dipping glue is 8.2%.

[0035] The performance index of the greaseproof paper of the present embodiment is as follows:

[0036] Quantitative: 64.6g / m²;

[0037] Thickness: 396μm;

[0038] Volatile matter: 1.2%;

[0039] Oil resistance level: level 3.

Embodiment 1 2

[0041] The invention relates to an oil-proof paper. The raw material ratio of the base paper is calculated by weight percentage. The coniferous pulp fiber accounts for 63%, the broadleaf pulp fiber accounts for 37%, and the concentration of the dipping glue solution is 8.1%.

[0042] The performance index of the greaseproof paper of the present embodiment is as follows:

[0043] Quantitative: 65.1g / m²;

[0044] Thickness: 400μm;

[0045] Volatile matter: 1.3%;

[0046] Oil resistance level: level 3.

technical field

[0001] The invention relates to the technical field of food packaging, in particular to an environment-friendly and fluorine-free greaseproof paper for food packaging and a preparation method thereof. Background technique

[0002] Grease-proof paper is a type of paper coated with an oil-repellent agent on the surface, which can resist the penetration and absorption of grease. It is widely used in the packaging of food such as hamburgers, baked bread, biscuits and other oily items.

[0003] At present, the oil-proof paper on the market is mainly divided into two categories: one is plastic-coated paper, and the other is paper coated with oil-proof chemicals on the surface. These two types of greaseproof paper have certain defects during use:

[0004] Plastic coated paper may release harmful organic substances when it comes into contact with high-temperature food, affecting human health;

[0005] The surface of paper coated with oil-repellent chemicals, fluori...

Examples

Embodiment 1

[0022] A kind of oil-proof paper, including base paper, dip-coated with dip-coating glue on the base paper. The composition of the dipping glue includes acrylic acid and water, that is, the dipping glue is a diluent of acrylic acid. In this embodiment, the acrylic acid is preferably water-based acrylic acid.

[0023] The concentration of the dip coating glue is 6-10%, that is, by weight percentage, acrylic acid accounts for 6-10%, and water accounts for 90-94%.

[0024] In this embodiment, the base paper is made from plant fiber pulp through disintegration, disintegration, refining and papermaking processes. In this embodiment, the preferred plant fiber pulp is a mixed fiber pulp formed by mixing coniferous pulp fibers and broadleaf pulp fibers. In terms of weight percentage, softwood pulp fibers account for 55-65%, and hardwood pulp fibers account for 35-45%.

[0025] The performance index of oil-proof paper of the present invention is as follows:

[0026] Quantitative: 62...

Embodiment 1 1

[0034] The invention relates to an oil-proof paper. The raw material ratio of the base paper is calculated by weight percentage. The softwood pulp fiber accounts for 62%, the broadleaf pulp fiber accounts for 38%, and the concentration of the dipping glue is 8.2%.

[0035] The performance index of the greaseproof paper of the present embodiment is as follows:

[0036] Quantitative: 64.6g / m²;

[0037] Thickness: 396μm;

[0038] Volatile matter: 1.2%;

[0039] Oil resistance level: level 3.

Embodiment 1 2

[0041] The invention relates to an oil-proof paper. The raw material ratio of the base paper is calculated by weight percentage. The coniferous pulp fiber accounts for 63%, the broadleaf pulp fiber accounts for 37%, and the concentration of the dipping glue solution is 8.1%.

[0042] The performance index of the greaseproof paper of the present embodiment is as follows:

[0043] Quantitative: 65.1g / m²;

[0044] Thickness: 400μm;

[0045] Volatile matter: 1.3%;

[0046] Oil resistance level: level 3.