| 摘要 |
<p>The invention relates to a method of altering the thermodynamic properties of leather. The inventive method consists in incorporating microcapsules with PCMs (paraffins, hydrated salts or others), organic and inorganic inert pigment fillers and other insulating materials or materials with ultraviolet and/or infrared light reflecting properties, in aqueous phase, deeply inside the leather matrix and/or in the particles forming the finish thereof. Said method involves the incorporation of a stable suspension of microcapsules, during any stage of the leather treatment process which comprises mechanical movement, whereby said microcapsule suspension is obtained by: calculating the total percentage of microcapsules to be incorporated into the leather; determining the percentage of one or more types of microcapsules to be added; forming a microcapsule mixture having a weight and a percentage of one or more types of microcapsules in accordance with the data calculated in the previous steps; slowly adding the microcapsule mixture to a continuously-stirred tank containing water, until a solution is formed; and adding a special surface-active additive to the solution obtained in the previous step and continuously stirring the solution thus obtained until a final stable suspension is obtained which contains water, evenly-distributed microcapsules and the surface-active additive.</p> |
