Shanghai Daoqin Plastics Co., Ltd.

white material 由天然 or combined formed 无 machine material 组 formed. machine material ratio has machine material more easy dispersion in large more coating material in. however, many white material 经 处理以 improve/increase its dispersion property, lightfast property and weather resistance, 该处理涉 and use machine and has machine material coating mono material pellets. 任何颜 material in material in full dispersion is important, is has this can its most color force.

white material used for paint coating material in white, color and cover/cap color 调, for/regarding transparent cover/cap, excellent 选 titanium powder （二 oxidation titanium ）, is it tool has color cover/cap force. has rate high 于1.7 material by type is white material, if rate low 于1.7, it by type is filler. 严格 说, 1.7 极限 value is 一 常数, is 取决于 coating material 载体, is types coating material has its 特定 折射 rate. material rate coating material different different, therefore material drying 油, alcohol acid resin, resin and wax and other material rate different.

white material tool has good optical features, 例如: high light dispersion can force, high cover/cap force, good color force, high degree, obvious color （ most good has ） and high degree. most important features is light dispersion force, it 取决于折射 rate, pellets large small and distribution, and in coating material in dispersion degree.

due to this related property, light dispersion force is versus for value, is for value; other parameters, high cover/cap force, degree, dark and degree, or more or less 都取决于 white material dispersion force.

遮 cover/cap force is coating material types features, it can make coating material coating in 任何背景 upper method 辨认. generally is, coating material coating in upper rate is and other thick degree coating in white upper rate 0.98时, to full cover/cap 效果. therefore, cover/cap force is comparison degree and will comparison degree decrease small to 0.02 需 coating material thick degree 函数. 0.02 value is according to Weber-Fechner定律 出, 该定律指出, in in and other lighting lower, comparison degree small 于2% 差异 for 普通人 眼睛 说 is method separation 辨.

当 light 线照射 to film upper 时, separation from surface 反射, its 余 会进入漆 film, light need by absorption, need from different surface （包括顶部） injection shot, if has light by absorption, film 就会呈现 black or deep color, can very good cover/cap 底材, material light features make film tool has cover/cap force.

if large separation light from film upper surface injection shot, 而基材没 has by cover/cap 住, that film cover/cap force very 差. 例如, in white upper cover/cap 一层不含颜 material transparent 亚麻籽油 film. versus 反, if large separation light from film in injection shot, 而基底 by 遮住, that film property very good, this 样 漆 film is white or shallow color, in this type of lower, light 线经 颜 material more 次反射, and 衍射, light from injection shot, 而底材却不会显现出, material therefore can generate cover/cap force, is is it can dispersion light 线.

if from injection shot light amount is its long 函数, that film cover/cap good bad 取决于底材 by cover/cap degree, in this type of lower, film is color color, color, color or other color.

in has lower, material and light absorption features and material light dispersion features 共同决定 漆 film cover/cap force.

for/regarding white or white coating material, cover/cap force large small is material and 载体折射 rate between 差异 函数. therefore, types material in water in cover/cap force need good in 亚麻籽油 in cover/cap force, in gas in cover/cap force （ high dry degree cover/cap force ）则 more good, this is is rate in increase large.

need make type type material tool has most large cover/cap force, material and its in in dispersion degree 也至关 important.

lower table/sheet coating material in use large more white transparent material and expand material rate, large more material is 晶体状, usually 沿晶体轴线 tool has different rate, table/sheet in to 出 数 value is has direction value, rate 也会随 light long different has 变化, generally 说, light rate need high light.

white material and filler rate:

quality color or quality color is through light 观察颜 material and mixed combined material color, its thick degree 足以完 full cover/cap 背景. quality color 包括明 degree, color versus and saturated and degree. generally used for has color material, can used for white material.

color force is material for standards coating material or material color can force, used for white material 时, color force is material resistant color agent color can force, color force usually by used as versus for cover/cap force guide. therefore, cover/cap force basic factors suitable for quality color and color force, this 也就不足 is 奇. therefore, material rate is need factors, its is material and in in dispersion degree, for/regarding has color material 说, solid has light absorption can force is main/primary factors.

特定 paint color or color 调 底 color is will paint coating very thin or and white mixed combined rear to color, this can through thin 刷, use 画刀刮 or use dilute achieve.