Global knowledge about plastics, recycling, raw materials, and modern technologies

100 Specialized Terms and Phrases Used in Film Production, Film Usage, and Film Property Testing

Key Terms Used in Film Production, Application, and Property Testing

Discover Industry-Specific Terms – Explained in Detail in Our Online Course

Plastics films are used in countless industries, from food packaging to high-tech applications. Understanding the key technical parameters, materials, and production processes is essential for manufacturers, engineers, and users alike.

Blown film Extrusion - Rolbatch Academy - Dr Magdalena Laabs


Below, you will find 100 specialized terms and key concepts related to plastic film production, application, and testing. Each of these terms will be explained in detail in our Industry Glossary Online Course, where you will see real-world examples through photos, videos, and expert explanations to help you fully understand their meaning and practical applications.

👉 Find the full course description and registration link here!


📌 1-30: Raw Materials and Additives Used in Film Production

  1. LDPE (Low-Density Polyethylene) – A low-density polyethylene widely used in film production.
  2. LLDPE (Linear Low-Density Polyethylene) – A linear low-density polyethylene offering better strength and flexibility.
  3. HDPE (High-Density Polyethylene) – A high-density polyethylene known for its rigidity and barrier properties.
  4. MDPE (Medium-Density Polyethylene) – A polyethylene with intermediate density and good toughness.
  5. PP (Polypropylene) – A polymer used for producing films with high heat resistance.
  6. EVA (Ethylene Vinyl Acetate) – A copolymer improving flexibility and impact resistance.
  7. PA (Polyamide, Nylon) – A strong and durable polymer commonly used in multilayer films.
  8. EVOH (Ethylene Vinyl Alcohol) – A high-barrier polymer for gas and oxygen protection.
  9. Masterbatch – A concentrated mixture of additives or colorants in a polymer carrier.
  10. Anti-blocking agents – Prevent film layers from sticking together.
  11. Slip agents – Reduce surface friction to improve film handling.
  12. Impact modifiers – Improve impact resistance and toughness.
  13. UV stabilizers – Protect films from UV radiation degradation.
  14. Antistatic agents – Reduce electrostatic charges on the film surface.
  15. Anti-fog additives – Prevent condensation of water vapor on the film.
  16. Antimicrobial agents – Provide protection against bacterial growth.
  17. Biodegradable additives – Accelerate the degradation of films in the environment.
  18. Regranulate (Recycled resin) – Recycled plastic material used in film production.
  19. Virgin resin – Non-recycled, high-purity raw material.
  20. Co-extrusion – The simultaneous extrusion of multiple film layers.
  21. Fillers – Additives that reduce cost and modify film properties.
  22. Organic peroxides – Improve mechanical properties of polymers.
  23. Plasticizers – Enhance flexibility and workability of the film.
  24. Flame retardants – Increase the film’s resistance to fire.
  25. Polymer blends – Mixtures of different polymer types for improved performance.
  26. Thickeners – Increase the viscosity of molten polymer.
  27. Processing aids – Reduce processing issues and improve extrusion efficiency.
  28. Adhesion promoters – Improve the bond strength between film layers.
  29. Optical brighteners – Enhance transparency and aesthetics of the film.
  30. Surface modifiers – Improve hydrophobicity, gloss, or printability.
Blown film Extrusion - Rolbatch Academy - Dr Magdalena Laabs

📌 31-60: Film Production Processes

31. Extruder – A machine for processing polymer materials.
32. Extruder screw – The component responsible for melting and mixing the polymer.
33. Calibrating channel – Stabilizes film dimensions during production.
34. Extrusion die – Shapes the polymer melt into a tubular or flat film.
35. Film bubble – The inflated tube of film during blown film extrusion.
36. Air ring – Cools and stabilizes the film bubble.
37. Bubble stability – Key to achieving uniform film thickness and quality.
38. Extrusion pressure – Controls the flow of molten polymer.
39. Melt temperature – The temperature of the polymer during extrusion.
40. Screw speed – Determines the output rate of the extruder.
41. Screen changer – Filters contaminants from the molten polymer.
42. Heating zone – Heats the polymer in the extruder barrel.
43. Tension force – Ensures proper film winding.
44. Film winding – The process of rolling the film onto cores.
45. Winding station – The machine used for film winding.
46. Mono-/Multilayer film – Single-layer or multilayer film structures.
47. Blown film extrusion – The process of producing films in tubular form.
48. Cast film – Film produced using the casting method.
49. Barrier co-extrusion – Co-extrusion technique to produce high-barrier films.
50. Film orientation – Process to enhance film strength in different directions.
51. BOPP (Biaxially Oriented Polypropylene) – A film stretched in both directions for strength.
52. CPP (Cast Polypropylene Film) – A non-oriented polypropylene film.
53. Laminated film – A multi-layer structure bonded together.
54. Blow molding – A process for making hollow plastic containers.
55. Film stretching – Improves mechanical properties of the film.
56. Melt cooling – Controls the solidification of the polymer.
57. MD/TD Orientation – Machine/Transverse Direction stretching of film.
58. Perforation – Creating holes in films for better ventilation.
59. Shear resistance – Resistance to deformation under shear forces.
60. Blocking effect – When film layers stick together.

Blown film Extrusion - Rolbatch Academy - Dr Magdalena Laabs

📌 61-100: Film Properties, Testing, and Applications

61. Film thickness – Affects mechanical and optical properties.
62. Transparency – Determines how much light passes through the film.
63. Haze – The level of light diffusion in the film.
64. Coefficient of friction (COF) – Measures the ease of movement between film layers.
65. Tensile strength – The film’s ability to resist pulling forces.
66. Puncture resistance – The film’s resistance to sharp objects.
67. Oxygen barrier – Prevents oxygen from passing through.
68. Moisture barrier – Limits water vapor transmission.
69. Gas permeability – The ability of gases to pass through the film.
70. Shrinkage – Reduction in film dimensions upon heating.
71. Seal strength – The durability of heat-sealed areas.
72. Abrasion resistance – Protection against surface wear.
73. Flexibility – The film’s ability to bend without breaking.
74. Water resistance – Prevents absorption of water.
75. Thermal stability – Ability to withstand high temperatures.
76. Printability – How well the film holds printed images.
77. Grease resistance – Protects against oils and fats.
78. Heat sealability – Ability to bond under heat.
79. Surface tension – Affects adhesion and print quality.
80. Melt Flow Index (MFI) – A measure of polymer viscosity.
81. Density – Mass per unit volume of the film.
82. Raw material moisture content – Excess moisture may cause defects.
83. Tear resistance – Ability to resist tear propagation.
84. Impact resistance – Strength against sudden forces.
85. Elastic modulus (Young’s modulus) – Measures stiffness.
86. Interlayer adhesion strength – Critical for multilayer films.
87. Crystallization temperature (Tc) – Temperature where the polymer solidifies.
88. Degree of crystallinity – Ratio of crystalline to amorphous polymer.
89. Thermal expansion coefficient – Measures dimensional change with heat.
90. Stress crack resistance – Resistance to long-term mechanical stress.
91. Shape memory effect – Some shrink films return to shape when heated.
92. UV resistance – Resistance to sunlight degradation.
93. Microperforation – Small holes for ventilation.
94. Anti-slip surface – Improves grip and stability.
95. Chemical resistance – Tolerance to contact with chemicals.
96. Gloss level – Determines surface reflectivity.
97. Yellowing resistance – Maintains clarity over time.
98. Optical properties – Combination of haze, gloss, and clarity.
99. Cutting ease – The ability to be cut cleanly.
100. Lateral tensile strength – Strength in different directions.

👉 All these topics will be covered in detail in our course. Enroll today!

✅ During the training, each of the following terms will be thoroughly explained, both theoretically and practically. Participants will see examples through images, videos, and animations, and will hear detailed explanations from the instructor. This ensures that even complex technical terms become understandable and easy to apply in daily work.

👉 Complete course details and registration link available here! PLASTIC FILM COURSES

👉 Check out our courses on PLASTICS RECYCLING as well! ♻️

Blown film Extrusion - Rolbatch Academy - Dr Magdalena Laabs