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方便袋:软包装常用八大材料及性能

来源:http://www.jingmeisuliao.com/ 日期:2022-11-26

软包装常用八大材料及性能,感兴趣的朋友快点收藏一下吧。
Eight materials and properties are commonly used in flexible packaging. Please collect them quickly if you are interested.
1、 BOPP 学名为双向拉伸聚丙烯(电晕值≥38dy/m2)
1. The scientific name of BOPP is biaxially oriented polypropylene (corona value ≥ 38dy/m2)
(1)、由于分子定向、结晶度提高,其抗张强度、冲击强度、刚性韧性、阻湿性、透明性、耐寒性都较好。(2)、无味、无臭、可直接用于同食品和药品接触。(3)、无热封性。(4)、撕裂强度低、须注意卷膜缺口会造成断膜。(5)、须经电晕处理方能进行印刷或复合。
(1) Due to molecular orientation and improved crystallinity, its tensile strength, impact strength, rigidity and toughness, moisture resistance, transparency and cold resistance are good. (2) It is odorless and tasteless, and can be directly used in contact with food and drugs. (3) No heat sealing. (4) The tear strength is low. It should be noted that the roll film gap will cause film breakage. (5) Printing or compounding can only be carried out after corona treatment.
2、CPP 学名 流涎聚丙烯(电晕值≥38dy/m2)(1)、光泽性、透明性优良。(2)、定制有适中的强度和优良的阻湿性能。(3)、具有良好的热封性、耐热性好。(4)、耐油性优良。(好过LDPE)(5)、无臭、无味、寄生性好。(6)、耐化学药品性好(7)、耐寒性差,均聚丙烯10℃以下就有低温脆性、不能使用在0℃以下的场所、共聚丙烯可以。(8)、透气性大、易产生静电、易吸附灰尘。
2. The scientific name of CPP is salivating polypropylene (corona value ≥ 38dy/m2) (1). It has excellent luster and transparency. (2) Customized with moderate strength and excellent moisture resistance. (3) It has good heat sealing and heat resistance. (4) Excellent oil resistance. (Better than LDPE) (5) Odorless, tasteless and parasitic. (6) Good chemical resistance (7), poor cold resistance. Homopolypropylene has low temperature brittleness below 10 ℃, and co polypropylene can be used in places where it cannot be used below 0 ℃. (8) Large permeability, easy to generate static electricity, easy to absorb dust.
3、PE 学名聚乙烯(电晕值≥38dy/m2)(1)、易热封。温度80-90℃、熔点110-120℃。(2)、伸长率大,冲击强度大、柔软性、韧性好(3)、耐水性、阻湿性好,耐化学性、药品性优良。(4)、设计耐低温性优良,低温条件下柔软性较好。(5)、无臭、无味、透明性好。(6)、透气性大。(7)、耐油性差、包装油性食品易渗油。(8)、易产生静电。
3. PE scientific name: polyethylene (corona value ≥ 38dy/m2) (1), easy to heat seal. The temperature is 80-90 ℃, and the melting point is 110-120 ℃. (2) High elongation, high impact strength, good flexibility and toughness (3), good water resistance, moisture resistance, chemical resistance and drug resistance. (4) The design has excellent low temperature resistance and good flexibility under low temperature conditions. (5) Odorless, tasteless and transparent. (6) High permeability. (7) Poor oil resistance, and the packaged oily food is easy to leak oil. (8) . It is easy to generate static electricity.
4、 PET 学名 聚酯(电晕值≥48dy/m2)(1)、机械强度高、可在较薄的情况下使用(2)、透明性好,光线透过率在90%以上、光泽性好。能吸收紫外线。(3)、耐热性、耐寒性好、热收缩率较小、尺寸稳定性好。(4)、保鲜性好。阻气性优于PE、阻湿性同PE差不多。(5)、卫生性好。不含增塑剂等物质。
4. PET has the scientific name of polyester (corona value ≥ 48dy/m2) (1), high mechanical strength, and can be used in thin cases (2), good transparency, light transmittance of more than 90%, and good luster. It can absorb ultraviolet rays. (3) Good heat resistance, cold resistance, small thermal shrinkage and good dimensional stability. (4) Good freshness. The gas resistance is better than PE, and the moisture resistance is similar to PE. (5) Good hygiene. No plasticizer and other substances.
5、BOPA.(NY).学名尼龙、聚酰胺。(电晕值≥52dy/m2)
5. BOPA. (NY). The scientific names are nylon and polyamide. (Corona value ≥ 52dy/m2)
(1)、强韧性很大、具有良好的抗张强度、伸长率、撕裂强度及耐磨性。(2)、耐穿刺性好。(3)、低温特性优良、可在-60℃——200℃使用。(4)、耐油性、耐酸碱性、耐药品性、耐溶剂性好,具有一定的阻气性。(5)、不易产生静电、印刷性好。(6)、易吸水,尺寸稳定性较差。
(1) It has great strength and toughness, good tensile strength, elongation, tear strength and wear resistance. (2) Good puncture resistance. (3) It has excellent low-temperature characteristics and can be used at - 60 ℃ - 200 ℃. (4) Good oil resistance, acid and alkali resistance, drug resistance, solvent resistance and gas resistance. (5) It is not easy to generate static electricity and has good printability. (6) It is easy to absorb water and has poor dimensional stability.
6、PVC 学名聚偏氯乙烯(电晕值≥38dy/m2)(1)、透明性好、易成型。(2)、透氧率、透水蒸汽性比LDPE小、溶剂透过率小。(3)、着色性好、印刷适性,热封性好。(4)、耐化学药品性好。(5)、易于拉伸、须使用较小张力。
6. The scientific name of PVC is polyvinylidene chloride (corona value ≥ 38dy/m2) (1), with good transparency and easy molding. (2) Oxygen permeability and water vapor permeability are smaller than LDPE, and solvent permeability is smaller. (3) Good colourability, printability and heat sealing. (4) Good chemical resistance. (5) . It is easy to stretch, and small tension must be used.
7、AL 铝箔(1)、厂家阻光性、阻湿性、阻气性好。(2)、传热快、易受热、易冷却。(3)、不耐酸碱(4)、易卷曲形成裂纹或起皱。(5)、抗张强度低、使用张力应低于3kg/m2。
7. AL aluminum foil (1), good light resistance, moisture resistance and gas resistance of the manufacturer. (2) Fast heat transfer, easy to be heated and cooled. (3) . It is not resistant to acid and alkali (4). It is easy to curl and form cracks or wrinkles. (5) The tensile strength is low, and the service tension should be lower than 3kg/m2.
8、 PT.学名玻璃纸.(1)、透明性好、光泽性好、印刷适性好。(2)、抗张强度大、伸长率小、切割性好、机械适性优良。(3)、不带静电或很少带静电、不易粘上灰尘。(4)、撕裂强度小、易开口。(5)、耐油性好。(6)、耐热性好。(7)、阻气性好。(8)、阻水性差、易变形。(9)、卫生性好、无臭、无味
8. PT. Scientific name cellophane (1) Good transparency, gloss and printability. (2) High tensile strength, low elongation, good cutting performance and excellent mechanical adaptability. (3) There is no or little static electricity and it is not easy to stick dust. (4) Low tear strength and easy opening. (5) Good oil resistance. (6) Good heat resistance. (7) Good gas resistance. (8) Poor water resistance and easy deformation. (9) Good hygiene, odorless and tasteless
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