Early camouflage uniforms were limited by design theory, textile and dyeing technology, and could only be used against relatively simple backgrounds and for human eye or visible light reconnaissance. (The most applicable environments are spring, summer and autumn) At the same time, due to factors such as cost, most troops that can be equipped with camouflage uniforms are only issued to a few elite troops.
Today's camouflage uniforms not only have to deal with visible light reconnaissance, but also have to defend against thermal infrared detection and multi-band radar detection.
In order to have these functions, some camouflage uniforms use specially dyed NIR (anti-near infrared light) fabrics when manufacturing them.
Special chemicals are also added to the dyes used to print camouflage (with anti-infrared and thermal coatings).
Make the light waves reflected by the camouflage uniforms roughly the same as those reflected by the surrounding scenery.
To make camouflage uniforms suitable for a certain type of environment and terrain, special fabrics/dyes are needed.
The dyes used to dye a certain type of fiber must have a considerable affinity for a certain type of fiber.
If you want to make double-sided camouflage uniforms, you must consider the compatibility of different dyes.
Consider the consistency of performance between dyes and dyeing fastness.
In modern warfare, the uncertainty of the war zone environment is increasing.
One of the ideas for the development of camouflage uniforms in various countries is the design of sub-terrain camouflage.
That is, different camouflage uniforms are designed and distributed according to different environmental terrains.
At present, most armies in various countries can be equipped with camouflage uniforms.
Generally, camouflage uniforms with different patterns are regularly distributed and replaced according to seasons or terrains.
Those who need to deal with different terrain environments and quickly change camouflage patterns during the execution of tasks are mostly elite troops,
The total demand for double-sided camouflage uniforms is relatively small.