Product Introduction-KuMu New Material Technology

Product Introduction

PU Micro Porous Breathable Membrane

Structure diagram

Ichnography

Cross-sectional view

PU Micro Porous Breathable Membrane

Micro porous membrane is a kind of hydrophobic micro porous film with polyurethane as the main material.
Structural Characteristics: The surface of PU micro-porous membranes features a spider-web pattern of micropores. These pores exhibit conventional fiber-like configurations with intricate three-dimensional structures including interconnected networks, nested pore arrangements, and curved channels. Notably, multiple micropores may form a single channel, while individual pores can also link to multiple channels.

Features

Fluoride-free

The products are completely free of fluoride additives and do not contain PFAS or PFOA substances.

Waterproof

The pore is one twenty-thousandth of the diameter of a water molecule, making it difficult even for the smallest water droplets to pass through.

Windproof

The microporous channels of the microporous membrane are not straight. It is very difficult for air molecules to pass through its microporous channels, thus effectively blocking the convection of gas molecules inside and outside the fabric.

Moisture permeability

The microporous membrane has hundreds of millions of micropores per square inch, and water vapor molecules can freely pass through the micropores and be quickly discharged from the body, so that sweat will not condense on the skin surface.

hydrophobicity

When the temperature drops and the movement stops, the micro-porous membrane can keep dry and the human body will not feel cold and wet, which is impossible for the hydrophilic film.

Air Permeability

Microporous with slight air permeability, the breathability of a single membrane can reach 1.5 mm/s, enhancing human comfort and preventing a feeling of stuffiness.

Product Model

Product Category			Kumu MicroPorous Films Series
Product Model			KMP-35	KMP-50	KMP-70
KMP FILM		Color / Type	W/B/G	W/B/G	W/B/G
Item	Unit	Test Method / Feature	Microporous Breathable / Light Weight	Microporous Breathable / High Moisture Permeability	Microporous Breathable
Thickness	μm	JIS L1096	35	50	70
Weight	g/㎡	JIS L1096	19	23	26
Width	mm	GB/T4666-2009	1530	1530	1530
Moisture Permeability	g/㎡/24hr	GB/T 12704.2—2009 Inverted Cup	11,000	10,000	10,000
	g/㎡/24hr	JIS L 1099 A1	12,000	11,000	10,000
	g/㎡/24hr	JIS L 1099 B1	50,000	40,000	10,000
Hydrostatic Pressure	mmH₂O	JIS L 1092 B	15,000	18,000	7,000
Air Permeability	mm/s	ISO9237	0.6	0.5	0.3
Specification	m/roll	Packing Specification	500m/roll	500m/roll	500m/roll