The Need for 7ml-100ml Screw on PET Bottle 

Here is everything that you need to know about 7ml-100ml screw on PET bottle. Bottles are the most common and extensively used package. Polyethylene terephthalate (also written as polyethylene terephthalate), commonly abbreviated as PET, is the most common thermoplastic polymer resin of the polyester family.

Along with its use in making fibers in clothing, foods, and thermoforming for manufacturing, it is also used to make bottles for liquids. In recent years, the rising demand for packaged liquid among global consumers is driving manufacturers to make PET bottles. These bottles are 100% recyclable through washing and re-melting and maintain environmental sustainability. Their ease of use and enhanced protection make them an ideal packaging for pharmaceutical products. With varying capacities such as 7ml-100ml screw on PET bottle, these products offer resilience against potential deterioration agents. Their high demand in the market is because they are cheaper than other packaging alternatives.

PET bottles don’t contain BPA or phthalates, which makes them an excellent choice for drink packaging. The environmental impact of PET is much encouraging and promising as compared to glass, aluminum, and other recyclable container materials. The growing awareness and consumer choices for eco-friendly solutions are the main reasons behind the rapid manufacturing of PET packaging. The manufacturers of PET bottles provide the pharmaceutical industry with distinctive, innovative, and quality products. They are contributing to the cause of human health.

Competitive Market of 7ml-100ml Screw on PET Bottle

Pharmaceutical companies typically use PET bottles because the PET material is light and strong. They are known to have a high strength-to-weight ratio The PET bottle market is highly competitive because it has to deliver health and safety for global consumers.

Features of 7ml-100ml Screw on PET Bottle

PET bottles with screws possess packaging properties that we don’t find in other packaging technologies.

Sophisticated image

The PET bottles are exceptionally transparent and have a shiny surface, which gives a special appearance and sophisticated image to the product. The labeling solutions with double-sided printed labels lend the bottle an aesthetically pleasing look.

Highly stable and shatterproof

The PET bottles possess an excellent stability, high-pressure resistance, and good barrier properties.

Lightweight

In comparison to other packaging materials, PET bottles are lightweight and easy to carry. They have 90% less weight as compared to glass.

Unlimited diversity of design

The flexible production process offers nearly unlimited diversity of design with minimal mold costs.

Virtually unbreakable

Due to outstanding material qualities, PET bottles are virtually unbreakable. They don’t get fractures while filling, transporting, and use.

Safety for humans

PET bottles offer maximum protection to consumers. They don’t contain BPA or phthalates.

Chemical resistant

The PET material will never react with any liquid and that is why the pharmaceutical industries like them.

Post Manufacturing Tests

Manufacturers conduct various post-manufacturing tests to ensure the quality of the plastic. They infuse carbon dioxide to make an impermeable PET bottle. Likewise, they do take into consideration other aspects such as shining and transparent appearance, shatter proofing, pressure resistance, and thickness.

Manufacturers usually conduct three tests before proceeding with the manufacturing of PET bottles.

Torque test for bottle caps:

​The bottle’s cap should not be too hard to open. Moreover, if the cap remains too soft and loses easily, it can potentially expose and spoil the product.

Testing the seal of the bottle cap

The cap maintains the freshness of the liquid inside the bottle. The seal of the cap should have relative strength to close the bottle. A ruptured seal causes the bottle to leak during transportation or long-term storage.

Testing weight of blown bottle sections

Bottle’s sections should remain within the desired weight range when the PET bottle’s preform blows into a full bottle. Any deviation from the weight range indicates a fault in the bottle’s blowing process. This may lead to structural problems and eventually compromising the quality of the product inside.

Manufacturing of 7ml-100ml Screw on PET Bottle

The PET bottle manufacturing process involves two basic stages of ‘Preforms Manufacturing’ and ‘Bottle Blow Molding’.

Injection Blow Molding – Preforms

The production starts with injecting PET plastic into a heated barrel. The later step injects it into a water-cooled mold under high pressure to form a preform. A preform is an intermediate product. It blows subsequently into a polyethylene terephthalate (PET) container.

Preforms vary in barriers, neck finish, weight, shape, and colour as per the product’s requirement. The higher injection pressure fixes the mold together using a clamping device. When the plastic remains inside the mold, it freezes into the mold’s shape. After sufficient cooling of the plastic, the mold and clamping unit open to eject the completed assembly from the mold. The process repeats further.

Two-Stage Reheat and Blow

This process precisely reheats the preform in the machine. The perform stretches down through the neck finish opening with a core rod. Afterward, it blows into the desired bottle shape.

Injection Stretch Blow Molding

This process manufactures high-quality bottles with very high clarity. It melts the plastic and then injects it into a mold to form a preform. The process requires reheating the preform before holding it inside two halves of a mold. The process involves high-pressure air to inflate the preform in the mold while the preform stretches simultaneously. The plastic freezes off to the mold shape while being inside of the mold. The mold halves are later open to release the bottle and repeat the process.

This process combines preform injection molding and the stretching and blowing of the preform into a bottle on one machine. The preform blows into a bottle under latent heat from the injection process along with additional conditioning. This single-stage process develops blemish-free, customizable bottles in a compact and flexible footprint. It allows more control over preform handling and is suitable for low volume production, and small-sized bottle containers. The injection molding production speed offers an automated high-efficiency operation.

Summary

The increasing proliferation of 7ml-100ml Screw on PET bottle is due to its ease of use, less cost, and low material weight. These bottles offer different end-user applications, ranging from food, beverage, cosmetics, and pharmaceuticals, etc.