re:Why do we need to avoid direct sunlight?

The plastic woven bag under the sun is easy to age and shorten the service life. The experiment shows that the plastic woven bag is reduced by 25% in the natural environment, that is, under the condition of direct sunlight, after a week, it will be reduced by 40% after two weeks. Out of service. And therefore woven bags should be placed in a cool clean indoor storage, transport should avoid sun and rain, should not be close to heat, storage period shall not exceed 18 months