Factory Wholesale Liquid Food Packaging Juice PE Plastic Screw On
Spout And Cap
Product Description :
Desc | Plastic Screw On Spout And Cap |
Spout & Cap Internal Diameter (mm) | φ8.6 |
Spout Size (mm) | contact us |
Cap Size (mm) | contact us |
Material | PE |
Package | Inner poly bag+cartons, |
as per customized packaging |
Grade | Food grade |
Color | Accept Custom Design |
Usage | Store liquid, paste, powder and small pill etc. |
such as medicine, drink, milk, jelly, toothpaste, |
sauce, facial cleanser, hand cream, seasoner, |
daily chemical cleaning products and so on |
Here’s an overview of the making technology:
1. Material Selection:
Food-Grade Plastics: Common materials include polyethylene (PE) and
polypropylene (PP), chosen for their durability, safety, and
suitability for food contact.
Additives: Colorants, UV stabilizers, and other additives may be
incorporated to enhance performance and aesthetics.
2. Injection Molding:
Mold Design: Precision-engineered molds are created to form the
specific shape and features of the spout and cap. These molds must
be highly accurate to ensure consistent production quality.
Injection Process: The selected plastic material is melted and
injected into the molds under high pressure. The material cools and
solidifies into the desired shape.
Cycle Time: The cycle time for injection molding can vary depending
on the complexity of the design and the type of plastic used.
Efficient cooling systems are often employed to speed up this
process.
3. Mold Cavity and Core:
Multiple Cavities: Molds typically have multiple cavities to
produce several spouts and caps simultaneously, increasing
production efficiency.
Core Pins: Core pins are used to form the internal threads of the
screw-on caps, ensuring a precise fit and smooth operation.
4. Post-Molding Operations:
Trimming and Deflashing: Any excess plastic (flash) from the
molding process is trimmed away to ensure smooth edges and
surfaces.
Thread Inspection: The threads on the spout and cap are inspected
for accuracy to ensure a tight, leak-proof fit.
5. Tamper-Evident Features:
In-Mold Banding: Tamper-evident bands can be incorporated during
the molding process. These bands break away when the cap is first
opened, providing a visual indication of tampering.
Seal Integration: Some designs include an integrated seal that
ensures the product remains airtight until opened for the first
time.
6. Printing and Branding:
Pad Printing: Logos, product information, and branding can be added
to the caps using pad printing, which involves transferring ink
from a silicone pad onto the plastic surface.
Hot Stamping: This process uses heat to transfer foil or ink onto
the cap, providing a durable and high-quality finish.
7. Quality Control:
Dimensional Checks: Each batch of spouts and caps undergoes
dimensional checks to ensure they meet specified tolerances.
Leak Testing: Caps are tested for their sealing capabilities to
ensure they are leak-proof.
Stress Testing: Mechanical tests are conducted to ensure the caps
and spouts can withstand the stresses of transportation and use.
8. Assembly:
Cap Assembly: In cases where the cap consists of multiple parts
(such as a cap with an internal seal), these parts are assembled
using automated machinery.
Spout Attachment: The spouts are often attached to the flexible
packaging using heat sealing or ultrasonic welding. This ensures a
secure and leak-proof connection.
9. Packaging:
Bulk Packaging: Finished spouts and caps are typically packed in
bulk for shipment to product manufacturers.
Sterilization: For certain applications, such as food and
pharmaceuticals, the caps and spouts may undergo sterilization to
ensure they are free from contaminants.
FQA:
1. What is a plastic screw-on spout and cap?
A plastic screw-on spout and cap is a closure system used in
flexible packaging, featuring a spout for dispensing and a screw-on
cap for sealing.
2. What materials are used for plastic screw-on spouts and caps?
They are typically made from food-grade plastics such as
polyethylene (PE) and polypropylene (PP).
3. Are plastic screw-on spouts and caps reusable?
Yes, they are designed to be opened and resealed multiple times,
providing convenience and preserving product freshness.
4. What types of products can use plastic screw-on spouts and caps?
They are suitable for liquids (juices, sauces), semi-liquids
(yogurt, purees), and granular products (sugar, rice).
5. How do plastic screw-on spouts and caps ensure product safety?
They provide an airtight and leak-proof seal, often include
tamper-evident features, and are made from non-toxic, food-grade
materials.
6. Can plastic screw-on spouts and caps be customized?
Yes, they can be customized in terms of color, size, shape, and
branding to meet specific product and marketing requirements.
