Overview
Color masterbatch for woven bags is a pre-dispersed pigment system comprising 20-50% colorants (organic/inorganic pigments or dyes) in a PP or PE carrier resin. It simplifies the coloring process for woven bag production by eliminating direct pigment handling. The masterbatch ensures batch-to-batch color consistency and reduces equipment contamination compared to powder pigments. Manufacturers typically offer standard colors (e.g., white, black, blue) and custom formulations. Premium grades include additives like UV stabilizers for outdoor applications or antistatic agents for industrial sacks. The product aligns with international standards such as ISO 9001 and REACH compliance for export markets.
Physical and Chemical Properties
The masterbatch exhibits thermal stability up to 250°C, crucial for extrusion processes. Its melt flow index (MFI) is engineered to match the base polymer (usually 2-10 g/10min for PP woven bags). Particle size ranges from 1-3mm for even feeding in extruders. Key performance metrics include color strength (typically 1:20 to 1:100 dilution ratio with virgin polymer) and migration resistance. High-quality formulations maintain ≤0.5% volatile content to prevent bubble formation during processing. Technical datasheets should specify lightfastness (ISO 105-B02) and heat resistance (ISO 4577) ratings.
Main Applications
Primary use is in polypropylene woven bags for agricultural products (e.g., rice, fertilizer) where UV-resistant colors like blue or green dominate. Construction-grade bags for cement/sand often use carbon-black masterbatches for UV protection and tear resistance. Specialty applications include: identifiable colors for brand differentiation (e.g., red for hazardous materials), anti-counterfeiting fluorescent pigments, and compostable bags using biodegradable carrier resins. The food-contact grade requires FDA/EC compliance pigments and absence of heavy metals.
Safety and Storage
While generally safe, masterbatches may generate fumes above 200°C—adequate ventilation is mandatory. Storage in original moisture-proof packaging prevents pigment agglomeration. Shelf life is typically 12-24 months when stored below 30°C at ≤50% humidity. Safety Data Sheets (SDS) classify most products as non-hazardous under normal conditions. However, certain inorganic pigments (e.g., cadmium-based) require special handling. Always verify regulatory status for target markets, especially regarding food-contact or child-safe packaging applications.
B2B Procurement Guide
For bulk procurement (≥5 tons), request lab-scale trials to verify color match under actual production conditions. Key evaluation criteria include: dispersion quality (microscope check for specks), processing temperature range, and let-down ratio economics. Preferred suppliers should provide ISO 9001 certification, batch testing reports, and technical support. For export orders, confirm pigment compliance with EU REACH, US FDA 21 CFR, or China GB 9685 standards. Consider regional pricing variations—Southeast Asian suppliers often offer competitive rates for standard colors, while European brands lead in specialty formulations.
Related Manufacturers
- 主营：有机颜料、金光红C、颜料红170、色母粒、篷布色母粒、EVA色母粒、注塑色母粒、ABS色母粒、PC色母粒、PA色母粒、吹膜色母粒、永固桔黄G、颜料橙64、永固黄HR、永固黄13、永固黄2GS、颜料红122
- 主营：螺杆清洗料、螺杆清洗剂、抗菌母粒、色母粒、抗静电母粒、防老化母粒、阻燃母粒、硅酮母粒、硅酮粉、增透母粒、增刚母粒、开口母粒、降解母粒、抗氧化母粒、消光母粒、哑光母粒、发泡剂、防雾剂、防锈母粒、香味母粒、脱模母粒、增韧母粒、耐寒母粒、微晶蜡、填充母粒
- 主营：环保abs、黄色粉、蓝色pet、专用pvc、色颜料、拉丝eva、绿色tpu、荧光粉、绿颜料、pla塑胶、pet珠光、pet吹瓶、蜡色粉、塑料abs、兰色母、abs母料、蓝色tpu、tpu无卤、无纺布、色纺纱、abs注塑、tpu增韧、pet高光、发泡eva、半成品
- 主营：新材料、调色剂、塑料袋、编织袋、适用abs、色母粒、专用料、水果袋、塑胶凳、除雾剂、熔喷布、发泡网、安全帽、色母料、背心袋、塑料管、无纺布、白色母、撕裂膜、水产袋、捆扎绳、塑料盒、高抗冲ps、吹膜级pp、超导电pc
- 主营：粘结剂、阻燃剂、哑光剂、色母粒、ema增韧、聚合物、彩色母、缠绕膜、色母料、交联剂、密封条、sbs沥青、润滑剂、增白剂、防刮花、开口剂、改性剂、光亮剂、聚乙烯、增韧剂、cpp薄膜、硅酮粉、除臭剂、pvc板材、阻燃料
- 主营：填充料、塑料袋、仪器箱、家用电源、料颗粒、吸收剂、塑料桶、塑料筐、灰色abs、碳纤维、爽滑剂、农机具、树脂瓦、无纺布、聚乙烯、塑料颗、塑料盒、排水管、制作灯罩、注塑颗粒、抗静电剂、家具管材、塑料配件、电线电缆、环保颗粒
- 主营：硬脂酸、氧化锌、钛白粉、橡胶用石蜡、石蜡、稳定剂、橡胶促进剂M、橡胶促进剂DM、橡胶促进剂TMTD、橡胶促进剂CZ、橡胶促进剂、乳胶促进剂、蓝星大华钛白粉、国标58石蜡、十八烷酸、A120二氧化钛、硬脂酸ST1842、锐钛型钛白粉、SR-2377钛白粉、半精炼58石蜡、58石蜡、硬脂酸st1801、58号半精炼石蜡、黑字氧化锌、工业级防老剂、进口硬脂酸
- 主营：纸塑袋、阀口袋、包装袋、编织袋、牛皮纸袋、纸塑复合袋、防水防尘打包袋
- 主营：氨基磺酸、二氯甲烷、氢氧化钾、色母粒、糖蜜、五水偏硅酸钠、AES、速溶硅酸钠、过碳酸钠、葡萄糖酸钠、卡松、碳酸钾、硼砂、甘油、甲酸、硫酸铵、乙二醇、苯酚、软水盐、二甲基甲酰胺、焦亚硫酸钠、亚硝酸钠、柠檬酸钠、亚硫酸氢钠、小苏打、二甲基乙酰胺
- 主营：塑料干燥剂、白色母、透明填充料、淋膜专用填充料、高添加塑料填充、膜类填充料、高速吹膜料
- 主营：电子记分牌、计分器、电子记时器、色母粒、球类记分牌、篮球计时器、24秒计时器、比赛计时器
- 主营：光固化UV色浆、3D打印树脂、胶带保护膜色浆/油墨、新能源领域应用色浆、半导体领域应用色浆、3C电子领域应用色浆、胶粘剂领域应用色浆、聚氨酯发泡应用色浆、塑料制品用色油、涂布领域应用色浆、增塑剂色浆、氟碳色浆、发泡色浆、导电色浆、遮光色浆、密封胶色浆
- 主营：降凝剂、超分散剂、螯合稀释剂、色母粒、甲基丙烯酸酯、染料水性分散剂
- 主营：水溶性炭黑、高色素炭黑、绝缘炭黑、氧化铁用水溶性炭黑、勾缝美缝专用炭黑、水性油墨专用炭黑、油墨专用炭黑、防静电塑料板用炭黑、电池专用导电炭黑、纸板浆料用水溶性炭黑、固化地坪用水溶性炭黑、发泡色母粒用炭黑、油墨用色素炭黑、涂料用色素炭黑、导电炭黑、中色素炭黑、低色素炭黑、混气法炭黑、氧化炭黑、乙炔炭黑、油炉法炭黑、水泥填缝水溶性炭黑、炭黑326、炭黑330、特黑
- 主营：十八醇、十六酸、脂肪酸、色母粒专用钛白粉、月桂酸、丙三醇、十八酸、棕榈酸、硬脂酸、十二酸、瓜尔胶、脂肪粉、甘油、肉豆蔻酸、十二醇、十六醇、十六十八醇、硅油、丙二醇、鲸蜡硬脂醇
- 主营：镭雕粉、镭雕母粒、镭雕助剂、塑料用粉eva蜡、阻燃剂、阻燃母粒、抗滴落剂、增韧剂、润滑剂、相容剂、成核剂、抗氧化剂、磷酸酯类阻燃剂、开口爽滑剂、紫外线吸收剂
- 主营：120号溶剂油、150号溶剂油、200号溶剂油、色母粒、D40溶剂油、D60溶剂油、D80溶剂油、D130溶剂油、260号溶剂油、磺化煤油、丙二醇、对甲苯磺酰氯、莫卡、聚乙二醇、正十四烷、异构十二烷、甲基叔丁基醚、铝粉膏、二甲硫基甲苯二胺、二乙基甲苯二胺、石蜡、白油、乙二醇丁醚、硫酸铜、氯化镍、溶剂油
- 主营：阻燃剂、润滑剂、抗氧剂、色母粒、抗滴落剂、增韧剂、扩散油、防老化剂
- 主营：氧化铁颜料、铁粉、膨润土、色母粒用炭黑、珍珠岩、矿物纤维、木质纤维、硅酸铝纤维、海泡石纤维、云母粉