A kind of preparation method of pearlescent leather material

Abstract

The invention relates to the technical field of leather processing, in particular to a preparing method for pearlescent leather. The method includes the processes of material selecting, foaming, plate pressing, ground color applying, pearlescent pigment spraying, manual color smearing, color fixing and drying. Traditional second-layer pig skin leather can only be applied to a lining and a rear cover of a material or be sold out as a waste material to be used as reclaimed leather. An inventor creatively starts to use second-layer pig skin, the feature of the second-layer pig skin is improved, the technology of foaming positive ion foaming resin is used for shielding rough pores of the second-layer pig skin, then plate pressing, ground color applying, pearlescent pigment spraying and manual color smearing are conducted, finally, the resin is used for color fixing, the obtained leather has the smoothness and the glossiness of the top-layer pig skin, pearlescent paint on a sprayed surface enables the product to become beautiful and colorful and have a very strong pearlescent three-dimensional effect, the added value of the leather is greatly improved, the prepared pearlescent leather can be used as the face layer of the leather, the application range is wide, and the economic benefits are high.

Description

technical field

[0001] The invention relates to the technical field of leather processing, in particular to a method for preparing pearlescent leather. Background technique

[0002] Leather is widely used on the surface of daily necessities, such as tables and chairs, sofas, shoe materials, clothing, etc., to add texture, beauty or durability to daily necessities. Leather can be broadly classified into artificial leather and natural leather. Natural leather refers to taking animal fur and drying, cleaning, softening, dyeing, trimming, cutting and other production processes to form a smooth surface and tough texture.

[0003] Due to the characteristics of the material itself, the gloss of pigskin leather is not high, especially the second-layer pigskin material. Although its material cost is lower than that of the first-layer pigskin, its pores are large and difficult to fill. The fineness of the leather material is not high and the gloss of the material is poor, so it can ...

Examples

Embodiment 1

[0048] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0049] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.2mm;

[0050] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 50 μm; the cationic foaming resin is cationic foaming resin. Foam resin 22K-1.

[0051] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing The printing pressure is 100kg / cm 2 , the embossing temperature is 110°C;

[0052]Step (4), applying the base color: Spray prime...

Embodiment 2

[0058] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0059] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.3mm;

[0060] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 60 μm; the cationic foaming resin consists of the following weight Raw material composition of 1 part: 56 parts of cationic foaming resin 22K-1, 30 parts of PK-408 cationic casein, 10 parts of azodicarbonamide.

[0061] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing...

Embodiment 3

[0067] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0068] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.5mm;

[0069] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 70 μm; the cationic foaming resin consists of the following weight Raw material composition of 1 part: 57 parts of cationic foaming resin 22K-1, 33 parts of PK-408 cationic casein, 12 parts of azodicarbonamide.

[0070] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing...

technical field

[0001] The invention relates to the technical field of leather processing, in particular to a method for preparing pearlescent leather. Background technique

[0002] Leather is widely used on the surface of daily necessities, such as tables and chairs, sofas, shoe materials, clothing, etc., to add texture, beauty or durability to daily necessities. Leather can be broadly classified into artificial leather and natural leather. Natural leather refers to taking animal fur and drying, cleaning, softening, dyeing, trimming, cutting and other production processes to form a smooth surface and tough texture.

[0003] Due to the characteristics of the material itself, the gloss of pigskin leather is not high, especially the second-layer pigskin material. Although its material cost is lower than that of the first-layer pigskin, its pores are large and difficult to fill. The fineness of the leather material is not high and the gloss of the material is poor, so it can ...

Examples

Embodiment 1

[0048] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0049] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.2mm;

[0050] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 50 μm; the cationic foaming resin is cationic foaming resin. Foam resin 22K-1.

[0051] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing The printing pressure is 100kg / cm 2 , the embossing temperature is 110°C;

[0052]Step (4), applying the base color: Spray prime...

Embodiment 2

[0058] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0059] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.3mm;

[0060] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 60 μm; the cationic foaming resin consists of the following weight Raw material composition of 1 part: 56 parts of cationic foaming resin 22K-1, 30 parts of PK-408 cationic casein, 10 parts of azodicarbonamide.

[0061] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing...

Embodiment 3

[0067] A kind of preparation method of pearlescent leather of the present embodiment comprises the following preparation steps:

[0068] Step (1), material selection: choose two layers of pigskin leather as the skin embryo, the thickness of the skin embryo is 1.5mm;

[0069] Step (2), foaming: Spray cationic foaming resin on the surface of the skin embryo to form a layer of cationic foaming resin coating on the surface of the skin embryo. The thickness of the cationic foaming resin coating is 70 μm; the cationic foaming resin consists of the following weight Raw material composition of 1 part: 57 parts of cationic foaming resin 22K-1, 33 parts of PK-408 cationic casein, 12 parts of azodicarbonamide.

[0070] Step (3), plate embossing: Use an embossing machine to emboss the leather embryo at high temperature, so that foaming and embossing are carried out at the same time, so that the leather embryo forms lines with convex parts and concave parts. The embossing machine embossing...