Shanghai Daoqin Plastics Co., Ltd.

        一.明确调 color target/goal

        1, for 需调配 sample has comprehensive understanding. is, Sample, is 唯一, generally can can is plastics made parts, pantone号, sheet/slice, leather, metal parts and other and other, has color 东西, has can can is need understanding.

        2, according to plastics raw materials, separation soft hard color powder. this can will color powder scope/range shrink small.

        3, according to molding process selection color powder or masterbatch (如: in temperature color powder also is high temperature resistance).

        4, for weather resistance, chemical resistant stability property add add filler or other additives also has environmental protection and other has has requirements.

        5, in what light lower for color, is has requirements. is sample, in light, day light 灯, outer and other different light lower, color has different.

        二, analysis color versus

        调 color 应遵循 原则: 先调 deep shallow, again color versus, most rear micro Color Difference; deep shallow can use white powder and color powder concentrated also has saturated and degree 调配.

         analysis color versus steps:

        1, sample transparent degree

         generally separation is has transparent, semi transparent and transparent types (也称实 color, color is transparent degree very low), transparent degree adjustment methods has types, is add large titanium powder, is increase color powder saturated and degree.

        2, sample surface

        (1) if sample surface white, is color in belt/tape 一 白 light, that sample 里定含 has titanium powder, if very heavy, 则说明 titanium powder content more.

        (2) if sample very 鲜艳, is color degree high, titanium powder use amount less, color color color powder use amount more. (color powder content more, color 明亮, color deep;反之, color shallow, degree low)

        (3) if sample surface color deep concentrated 鲜艳, surface also 反白, that can add large titanium powder use amount, add large color powder use amount 调配.

        注: if sample is transparent, need selection transparent property good has machine material or material. if is transparent or semi transparent, need according to experience 判断估计出 sample inner titanium powder content, again according to color versus is add black its ratio/proportion.

        三, how to 确定调 color formulation

        1, 首先确定 titanium powder content, this is technology key/critical in. is, titanium powder content 一变, color 就会变化 very large, other color powder use amount 就随之改变;

        2, analysis Color Matching Sample color scope/range is 由哪几 types color formed, types is color, types is color, ratio is how much. (尽 amount selection and sample color color light versus 近 颜 material, 如调红 color color, Sample 偏黄就 selection large color, 偏鲜艳就 selection or light color color);

        3, Sample degree, is add light color powder or add increase agent.

        四, 试配

        1, according to front analysis, selection combined color powder, formulation;

        2, according to raw materials type selection soft or hard 胶, is resistant in temperature also is high temperature resistance color powder;

        3, according to transparent degree selection material, titanium powder content and 黑, degree, most rear color versus, deep shallow, 明亮程 degree selection color powder product types.

        五, Color Matching

        1, titanium powder ratio/proportion

        2, black color powder ratio/proportion

        3, 确定主 color color powder ratio/proportion

        4, 确定副 color color powder ratio/proportion (need light color powder or increase agent ratio/proportion)

        六, injection molding 打样/ micro 调

         generally 以600g resin 进行调配, according to formulation ratio/proportion, will color powder and resin, mixed combined uniform, rear use injection molding machine 进行打 sheet/plate. sheet/plate rear, Sample full cooling, and Sample color comparison analysis, according to sample color color versus, deep shallow, 鲜艳程 degree add decrease color powder use amount, experiment/testing to combined Color Matching requirements. (如 use electrical testing Color Matching, can according to L, a, b value 偏差进行 data analysis)

        七, adjustment different color attention/notes issues 以 white is 例:

        1, generally lower, titanium powder pellets fine good, its color force high. commonly used titanium powder DuPont R105;

        2, white generally used for shallow color plastics products in, usually add a large amount of titanium powder and a small amount of material 配置;

        3, 调特白 need selection color belt/tape light titanium powder;

        4, PC/ABS in titanium powder content high, its cover/cap force good, large 于8%时遮 cover/cap force again upper rise.