Shanghai Daoqin Plastics Co., Ltd.

BOPP plastics film also di toward tensile polypropylene (PP) film, is types more function material, widely used in more industry. from food packaging to product label, BOPP film its resistant use property and transparent degree 而闻名. 本篇文章我们一起 understanding lower BOPP film concept, BOPP plastics film features and production process/workflow.

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1. what is BOPP film?

1.1 定义

BOPP film （ di toward tensile polypropylene (PP) ） is types widely used in packaging, label and lamination industry plastics film. it is through will polypropylene (PP) plastics extrusion formed film, rear will film 沿两 垂直 direction tensile, is di orientation. this process reinforcement film strong/high degree and resistant use property, make its can resistant 撕裂, and other loss bad.

BOPP film its solid has anti features, can force, high degree and again property and 货架吸引 force, and tool has uniform or structure packaging most can can property, formed is full food packaging 首选基材.

it usually used as food packaging applications hot printing film. in label industry, it its in production force advantages （IML density low 至 0.55）以 and and PP container and other material can recycling property to 青睐. BOPP film in full scope/range inner demand amount very large, this main/primary is due to soft packaging industry growth.

1.2. use BOPP film benefits

due to its many advantages, BOPP film already formed is many packaging, label and lamination application in use plastics film. below/following is use BOPP film main/primary advantages:

延 long shelf life

BOPP film provide has commonly used plastics film in most anti property, its metal 化版本 is product provide most retardant oxygen property. BOPP film this features for/regarding food packaging non important, is it can long product shelf life decrease/reduce material 浪费.

high transparency degree

BOPP film tool has color transparent degree, make its formed is product can property important packaging application 理想材 material. this type of degree make can 够清楚 看 to product, from promote sales improve/increase packaging overall 美感.

product quality high

due to its wide degree has 限, BOPP film remove tool has function outer, also provide 卓越且连续 完整 property. food packaging business also 受益于 strong/high large hot strong/high degree, reduce bag temperature degree and color machine processing property.

high value

BOPP film excellent transparent degree has is product packaging provide high water 平 视觉吸引 force. in this type of sheet/slice in, can light formed semi color to more color printing as 业, obtain high quality 图形. transparent white film tool has color gloss degree and transparent degree and color degree, make product packaging tool has 吸引人 appearance.

metal film appearance make 您 商 product in upper 脱颖而出. due to material tool has high surface force, therefore can 够进行冲 pressure, UV coating and pressure and other lamination rear process, improve/increase product packaging 视觉吸引 force.

灵 active property

BOPP film can light 松转换 formed bag 子, small bag, laminate and other packaging, make its formed is meet/satisfy many packaging demand high 效且经济 high solutions. its more function property make manufacturing can according to its product demand made packaging, is is show/display, also is 两者兼而 has 之.

density

and has other commonly used soft packaging film versus ratio, BOPP film tool has quality. low density through improve/increase process in production rate, promote decrease/reduce product use plastics method. low density more light 卷, more easy 处理, is it 们每卷 weight ratio same long degree other plastics film more light.

ring sustainable property

BOPP film can recycling 吗? and polyester and other other plastics film versus ratio, BOPP film carbon versus for relatively low. due to its in soft food packaging in environmental protection property, BOPP film is fiber film rear 第二受欢迎 基材. melting point low material from types 形式转变 is types 形式 需 can amount relatively less. recycling BOPP resin usually used for manufacturing injection molding parts, and other furniture and carpet and other other use product.

cost 效果

BOPP film is packaging and label selection, is and other material versus ratio, it easy obtain, easy 于转换且每平方英尺 cost relatively low. this type of cost make its formed is reduce cost meanwhile still is its product provide excellent packaging company has force selection.

II. BOPP film has what applications?

BOPP plastics film is types applications non 常广泛 材 material, in many different industry in has many application. BOPP film main applications 包括:

food and material packaging

BOPP plastics film its high resistant use property and anti property widely used in food and material product packaging. BOPP plastics film can used for made as multiple different type type packaging, 包括自立 bag, true bag and bag. this type type packaging has 助于保护 food and material product in and process in loss bad.

label

BOPP film high transparency degree and transparent property make this type of film can has used for label. its light slip surface also make printing 变 容 easy, can 创建引人注目且信息丰富 label, has 助于建立 Brand degree and 客户忠诚 degree.

lamination application

BOPP film can used for lamination multiple material, 包括纸张, sheet/plate, aluminum and printing material. BOPP film improve/increase lamination material strong/high degree and resistant use property, from make its formed is mono, and other printing material and other applications most combined selection 之一.

保护 film

BOPP film used for production anti plastics film, used for product anti 止未经授权 访问. this type of film usually used for need anti 止篡改 product packaging, 例如药 product, electronics parts and other similar material product. this has ensure product safety to 保护, meanwhile add strong/high 消费者信心.

人护理 product packaging

BOPP film also used for 人护理 product packaging, 例如化妆 product, water and other similar material product. its resistant use property and high anti property make its formed is need anti loss bad maintain quality packaging product selection. BOPP film also can used for has force 且引人注目 packaging, has 助于建立 Brand degree and 客户忠诚 degree.

medical packaging

BOPP film also used for packaging medical product and equipment. BOPP film can used for manufacturing multiple different type type medical packaging, small bag and packaging. this type type packaging has 助于保护 medical product and equipment loss bad, meanwhile also can light 松识别里面 inner 容.

tape

BOPP film usually used for production many different type type tape, packaging tape and transparent tape. its resistant use property and resistant property make its formed is need solid can tape application selection.

农 use film

BOPP film used for production use film, temperature film. its high transparency degree light 线穿透, its weather resistance has 助于保护植 material 免受恶 poor gas effect/influence.

III. BOPP film is how to production?

in packaging field/area upper, BOPP film （ di toward tensile polypropylene (PP) ） film already use more year. it its price, machine and optical features and gas 体（ especially is water gas ） retardant quality to high degree evaluation.

lower is BOPP film production process/workflow detailed 说明:

steps 1. provide raw materials

and other polypropylene (PP) is types semi crystallization thermoplastic property polymer, is in main/primary Raw Materials. outer using/adopting ethylene - propylene copolymer and / or ethylene -丁烷- propylene copolymer. material system used for will this formed separation extrusion machine.

steps 2. pressure

this material in extrusion machine in 熔化并 add hot 至 200–230°C, rear extrusion 头, formed film.

steps 3. cooling

然 rear water in cooling melt front will film 直接接触 cooling gas 缸.

steps 4. toward (MDO)

然 rear, film through very more 托辊, from improve/increase temperature degree is toward tensile good 准备. through in 以越 越 fast speed degree 旋转 托辊 between film, tensile process. in film usually by tensile its long degree 五倍之 rear, polymer in for 齐. steps can improve/increase film machine quality, and thick degree most more can decrease/reduce 五倍.

film in tensile rear heavy new add hot, remove tensile process in generate force.

steps 5. water direction (TDO)

in film 离开纵 toward tensile 区域（拉幅 machine 夹） rear, series fast speed metal 夹爪抓住 film 两侧边缘. film in in add hot rear, through dispersion 轨道进行 water tensile （即 water tensile wide degree 9倍）.
此时, large separation 子排列, this is toward 排列, from improve/increase film mechanical properties, will its thick degree decrease/reduce more 达 9 倍. tensile rear, and 阵列会 poly, make film and tensile process in formed force balanced.

steps 6. amount thick degree and hot 处理

film new steps, 自动测 amount thick degree （沿整 wide degree ）. rear for its in 一 面进行 hot or electrical 晕处理, is film good 进一步 processing 处理 准备, especially is surface, as is water （ used for printing ）, water （ used for lamination ） or metal （ used for printing ） and other material 锚定点. metal process ）.

steps 7. 滚动

一旦缠绕 in film upper, film by formed dimensions.

steps 8. amount data

below/following is most product must key/critical indicators:

• density and thick degree

• elastic property modulus, fracture elongation and tensile strength

• 雾 degree （不 transparent degree ） and gloss degree （闪闪发 light appearance ）

• film between and film and metal between friction coefficient

• 密封 strong/high degree and °C价 value

• temperature degree stability property （ hot shrinkage ）

film less has 三层, thick degree is 15～60 micron; in most thick, main/primary negative mechanical properties, outer 层赋予 film different property can （即 hot property can ）.

is full meet/satisfy application standards, can add additives, specific 取决于 product most application.

IV. BOPP film 材质

BOPP film （ di toward tensile polypropylene (PP) ） is 由PP resin （ polypropylene (PP) ） production formed. this category of plastics ratio PE more hard, by is tool has ratio upper plastics more good resistant tensile property and more high transparency degree generally features. another, BOPP film also is film, thick degree is 10～40 micron. causes is due to PP pellets density relatively low, has 0.90 g/m3.