Production technology of thin film for thermal and breathable fabric

Abstract

The invention discloses a production technology of thin film for thermal and breathable fabric. The production technology comprises the following steps of: firstly, mixing polyurethane resin, thickening agent, PH regulator and solvent together, stirring into colloidal liquid, coating a substrate with the colloidal liquid by blade coating, and carrying out sectional drying to obtain the finished product. By addition of aluminum powder and silver powder, human body temperature is reflected to the clothes, a thermal insulation circulating system is formed inside the clothes, temperature is increased by more than 6 DEG C, functions, such as breathing, warm keeping and protection against wind and rain, are realized, and thus, the thin film produced by the production technology has stronger thermal insulation performance; by three-section type drying, micropores without preservative water solution are formed, meanwhile, polyurethane micropores are formed, and pore diameter of such kind of micropores is greater than that of water vapor molecule and less than that of water molecule, so that the water vapor molecules in vapor state can pass through, and the breathable property is realized. Compared with the prior art, the thin film has the advantages of being breathable, light and thin, windproof and rainproof, and the like, is especially suitable for being used on garment materials, and is particularly suitable for being used on products, such as garment, home textiles and shoes.

Description

Technical field

[0001] The invention relates to the field of film manufacturing, in particular to a production process of a film for warm and breathable fabrics.

Background technique

[0002] Existing fabrics for producing clothes are generally made of one kind of material, with single characteristics and poor thermal performance. At present, known thermal insulation materials include natural materials such as cotton, silk floss, and wool; man-made materials such as acrylic cotton and polyester cotton Fiber materials, although the single fabric made of these materials has a certain thermal performance, it is still difficult to meet people's increasing wearing requirements. In order to further improve the thermal insulation, it will be necessary to increase the thickness of the fabric, so that the fabric or clothing becomes Bulky and thick, affect the use.

[0003] Membrane materials play a pivotal role in modern human social activities. In addition to some properties o...

Examples

Embodiment 1

[0025] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 10 parts; aluminum powder: 3 parts; silver powder: 3 parts; sodium polyacrylate: 0.5 parts; polyethylene oxide: 0.25 parts; triethylamine : 0.1 part; methyl ethyl ketone: 0.5 part; dimethylacetamide: 0.05 part; dibutyltin dilaurate: 0.04 part; triethylenetriamine: 0.01 part.

Embodiment 2

[0027] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 20 parts; aluminum powder: 4 parts; silver powder: 5 parts; sodium polyacrylate: 0.6 parts; polyethylene oxide: 0.3 parts; triethylamine : 0.2 parts; methyl ethyl ketone: 0.8 parts; dimethylacetamide: 0.05 parts; dibutyltin dilaurate: 0.1 parts; triethylenetriamine: 0.03 parts.

Embodiment 3

[0029] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 30 parts; aluminum powder: 6 parts; silver powder: 6 parts; sodium polyacrylate: 0.8 parts; polyethylene oxide: 0.4 parts; triethylamine : 0.3 parts; methyl ethyl ketone: 1 part; dimethylacetamide: 0.1 parts; dibutyltin dilaurate: 0.2 parts; triethylenetriamine: 0.05 parts.

Technical field

[0001] The invention relates to the field of film manufacturing, in particular to a production process of a film for warm and breathable fabrics.

Background technique

[0002] Existing fabrics for producing clothes are generally made of one kind of material, with single characteristics and poor thermal performance. At present, known thermal insulation materials include natural materials such as cotton, silk floss, and wool; man-made materials such as acrylic cotton and polyester cotton Fiber materials, although the single fabric made of these materials has a certain thermal performance, it is still difficult to meet people's increasing wearing requirements. In order to further improve the thermal insulation, it will be necessary to increase the thickness of the fabric, so that the fabric or clothing becomes Bulky and thick, affect the use.

[0003] Membrane materials play a pivotal role in modern human social activities. In addition to some properties o...

Examples

Embodiment 1

[0025] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 10 parts; aluminum powder: 3 parts; silver powder: 3 parts; sodium polyacrylate: 0.5 parts; polyethylene oxide: 0.25 parts; triethylamine : 0.1 part; methyl ethyl ketone: 0.5 part; dimethylacetamide: 0.05 part; dibutyltin dilaurate: 0.04 part; triethylenetriamine: 0.01 part.

Embodiment 2

[0027] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 20 parts; aluminum powder: 4 parts; silver powder: 5 parts; sodium polyacrylate: 0.6 parts; polyethylene oxide: 0.3 parts; triethylamine : 0.2 parts; methyl ethyl ketone: 0.8 parts; dimethylacetamide: 0.05 parts; dibutyltin dilaurate: 0.1 parts; triethylenetriamine: 0.03 parts.

Embodiment 3

[0029] The above-mentioned polyurethane emulsion contains the following components by mass ratio: polyurethane resin: 30 parts; aluminum powder: 6 parts; silver powder: 6 parts; sodium polyacrylate: 0.8 parts; polyethylene oxide: 0.4 parts; triethylamine : 0.3 parts; methyl ethyl ketone: 1 part; dimethylacetamide: 0.1 parts; dibutyltin dilaurate: 0.2 parts; triethylenetriamine: 0.05 parts.