A Comprehensive Guide to Eight Categories of Injection Bottle Molds

A Comprehensive Guide to Eight Categories of Injection Bottle Molds

As a professional bottle container manufacturer, understanding the different types of injection molds at our disposal is vital. These molds, each with their unique characteristics, play a significant role in shaping the quality, design, and production efficiency of our products. In this comprehensive guide, we will explore eight categories of injection bottle molds that are pivotal in the bottle manufacturing industry.

1. Single-Stage Injection Molds

Single-stage injection molds are an embodiment of manufacturing efficiency. As the name suggests, these molds combine the injection and blow molding stages into one continuous process within a single machine.

This type of mold is particularly useful for specialty bottle manufacturing and limited production runs. Single-stage injection molds guarantee an elevated level of precision in design and dimensional consistency, ensuring the highest quality standards for our customers.

2. Two-Stage Injection Molds

Two-stage injection molds take a two-step approach to bottle manufacturing. The first stage involves an injection molding machine that creates a plastic preform. This preform then moves onto the second stage – the blow molding machine – where it is inflated into the shape of the final product.

This mold category is well-suited for high-volume production due to its enhanced capacity and efficiency. Despite the two-step process, two-stage injection molds still maintain high accuracy levels, ensuring our products’ quality and consistency.

3. Hot Runner Molds

In hot runner molds, the plastic is guided from the injection unit to the mold cavity via a heated physical channel, or “runner.” These molds are designed to maintain the plastic in a molten state, preventing it from solidifying and blocking the runner.

Hot runner molds offer significant advantages in terms of cost efficiency and sustainability by minimizing plastic waste. This mold type is particularly beneficial when working with PET (Polyethylene Terephthalate), reducing the risk of material degradation and ensuring our PET bottles’ superior quality.

4. Cold Runner Molds

Cold runner molds, in contrast to their hot counterparts, guide the plastic into the mold cavity through unheated channels. Once the injection process is complete, the plastic within the runner solidifies.

While cold runner molds may produce more waste due to the unused plastic in the runner system, they offer substantial flexibility. Quick color changes and the ability to use different materials make these molds an excellent choice for specialty or low-volume bottle production.

5. Multi-Cavity Molds

Multi-cavity molds are a game-changer for high-volume bottle manufacturing. These molds contain multiple cavities identical in shape, allowing the simultaneous production of numerous bottles.

Multi-cavity molds dramatically increase production efficiency without compromising the quality and uniformity of our products, ensuring that we can meet high demand quickly and effectively.

6. Family Molds

Family molds bring versatility to the production line. These molds feature multiple cavities of different shapes and sizes within one mold, enabling the simultaneous production of various bottle components, such as the body and cap.

Family molds streamline the assembly process, offering a convenient and cost-effective solution for manufacturing complete bottle units in one go. This mold category ensures that all the bottle components are consistent in quality and compatibility.

7. Three-Plate Molds

Three-plate molds are characterized by their unique design comprising two parting lines and three plates clamped together. This design allows for a higher number of cavities per mold, increasing production output.

These molds enable precise center gating, which is advantageous for manufacturing symmetrical or round bottles. The three-plate molds ensure that our bottles are uniformly shaped, aesthetically pleasing, and reliable in quality.

8. Stack Molds

Stack molds offer an innovative solution to multiply production output without increasing machine size or footprint.

How to Choose a High-Quality Airless Bottle Supplier in the Market?

How to Choose a High-Quality Airless Bottle Supplier in the Market?

With the widespread application of airless bottles in the skincare industry, selecting a high-quality supplier is crucial for ensuring product quality and successful marketing. In China, a global manufacturing hub, there are numerous airless bottle suppliers. This article aims to guide you on how to choose a high-quality airless bottle supplier in the market and provides key considerations.

Supplier Reputation and Credibility:

Examine the supplier’s history and experience to understand their time and performance in the industry.

Research customer reviews and feedback about the supplier to gauge their satisfaction with the products and services.

Verify if the supplier has necessary certifications and qualifications, such as ISO certification.

Product Quality and Innovation:

Request samples from the supplier to assess the quality and performance of their products.

Investigate if the supplier consistently engages in product innovation and research to adapt to market changes and demands.

Understand the supplier’s quality control processes and standards, including material selection and production techniques.

Production Capacity and Timely Delivery:

Inquire about the supplier’s production capacity and scale to ensure they can meet your large-volume orders.

Understand the supplier’s production facilities and technological capabilities to ensure they can guarantee the quality and quantity of products.

Discuss delivery schedules and deadlines with the supplier to ensure they can deliver the products on time.

Customer Service and Support:

A good supplier should provide excellent customer service and support to ensure a smooth collaboration. Consider the following aspects of the supplier’s customer service:

Understand the supplier’s customer support channels and response time to ensure timely assistance and support when needed.

Communicate with the supplier and observe their communication skills and professionalism to ensure a harmonious cooperation.

When selecting a high-quality airless bottle supplier, Canvard Packaging is a noteworthy option. With over 10 years of collaboration with clients, they demonstrate long-term stability and reliability in the industry. Here are the advantages and features of Canvard Packaging as a supplier:

Long-term Collaboration: Canvard Packaging has established over 10 years of collaboration with clients, indicating their reliability and credibility in the supplier market. This long-term collaboration showcases Canvard Packaging’s ability to provide high-quality products and excellent services.

Stable and High-Quality Packaging Containers: Canvard Packaging offers stable and high-quality packaging containers to meet client requirements. Their products are carefully designed and manufactured to ensure quality and performance that align with industry standards. Canvard Packaging may provide various types of airless bottles to cater to different client needs.

After-Sales Service Guarantee: Canvard Packaging provides satisfactory after-sales service for any quality issues. Clients can rely on Canvard Packaging for timely after-sales support and solutions if they encounter quality problems while using Canvard Packaging’s airless bottles. This commitment to after-sales service highlights Canvard Packaging’s focus on customer satisfaction.

Customer Support and Communication: Canvard Packaging values customer support and communication. They offer multiple communication channels to ensure effective communication and prompt responses with clients. Whether clients encounter any issues or require assistance during the ordering process, Canvard Packaging will provide professional support and solutions.

Can cosmetics still be used if they are left in a car?

Can cosmetics still be used if they are left in a car?

If cosmetics are left in a car for too long, it is not recommended to use them because skincare products are sealed in containers. When placed in a closed car space where the temperature rises, some components of the cosmetics can undergo changes.

Skincare products should ideally be stored in a cool and dry place under normal pressure and humidity. After use, it is important to tightly close the bottle cap. Additionally, it is not advisable to store cosmetics in the bathroom or outdoors, as the high temperature and humidity in these environments can cause mold growth and affect the safety of the products.

What can be done to remedy skincare products affected by high temperatures?

There is no way to remedy skincare products once they have been affected by high temperatures. Therefore, it is important to store skincare products in a place away from direct sunlight and at an appropriate temperature.

Although skincare products undergo high-temperature stages during development, it is still recommended not to store them in high-temperature areas, regardless of whether the packaging has been opened or not. Especially in summer, when purchasing skincare products, some delivery boxes are often exposed to direct sunlight, which can affect the active ingredients inside the products, particularly for serums and similar items. Furthermore, some people tend to store all their skincare and cosmetic products on the bathroom vanity, but this is not advisable because the steam from showers can penetrate the products and also affect their effectiveness.

Please follow Canvard Packaging as we regularly update our knowledge about product usage. Thank you for your attention!

Canvard Packaging specializes in the manufacturing and selling of cosmetic packaging such as airless pump bottles, foam pump bottles, cream jars, PET bottles, and acrylic bottles.

Can perfume be brought on board an airplane?

Can perfume be brought on board an airplane?

Perfume is classified as a liquid cosmetic product. According to the regulations outlined in the “Civil Aviation Administration: FAQ on Passenger Carry-on Baggage Security Measures,” passengers are not allowed to carry perfume bottles with an individual volume exceeding 100 milliliters (mL). The perfume must be placed in a transparent plastic bag with a maximum size of 20x20cm, which can be resealed (only one sealed bag containing liquid containers is allowed). The total volume of liquid within the sealed bag in the carry-on baggage must not exceed 1 liter (L).

Example scenarios:

(Allowed) Jo Malone 30ml x1, Toner 50ml x1, Styling Spray 50ml x1 (all volumes are less than or equal to 100 milliliters)

(Not allowed) CK 200ml x1, Dolce & Gabbana 50ml x1, Hermes 30ml x1 (CK exceeds 200 milliliters)

*Note: The determination of milliliter measurements is based on the volume indicated on the bottle, not the amount remaining. Therefore, if you have a perfume bottle with a capacity of 100 milliliters, but only 30 milliliters are left, it is still considered 100 milliliters. If you want to make the most of the milliliter restriction, it is recommended to transfer the perfume into smaller bottles.

Sealing layer in the aluminum foil sealing liner

The heat sealing property of the sealing layer:

The primary condition for aluminum foil sealing liner to fuse and seal with the bottle mouth is that the sealing layer of the aluminum foil gasket must have heat sealing property. The heat sealing property of plastic refers to the thermal bonding property that the plastic has with itself or other types of plastic after being heated to a molten state.

The commonly used films with heat sealing layers are: PE (including HDPE, LLDPE, LDPE, etc.), CPP, modified PET, and other polymer resins (such as hot melt adhesive).aluminum foil seal

Correspondence between sealing layer materials and bottle materials:

When using aluminum foil sealing gaskets, it is important to note that the material used for the sealing layer must correspond to the bottle material. The corresponding relationship between them is as follows: Sealing layer material Bottle material PE heat sealing film LDPE, HDPE CPP heat sealing film PP Modified PET heat sealing film PET Hot melt adhesive LDPE, HDPE, PP, PET, glass, ceramics

Note: Aluminum foil gaskets with hot melt adhesive as the sealing layer can seal bottles of various materials, but the sealed object cannot be volatile or corrosive. If it is a liquid substance, it cannot be sealed in a hot filling environment.

Tear ability of sealing layer materials:

Due to the continuous demand for user-friendly packaging design, the sealing layer materials of aluminum foil sealing gaskets have also been continuously improved. In recent years, heat sealing material manufacturers have developed easy-to-tear films of different materials, which makes it so that the bottle mouth does not leave any aluminum foil or sealing layer material when the aluminum foil gasket is torn open after sealing. Examples of such easy-to-tear heat sealing films include CPP (PE) easy-to-tear heat sealing film, PET easy-to-tear heat sealing film, and other high-polymer material heat films. However, these easy-to-tear heat sealing films can usually only package products that are non-volatile and solvent-free.

The degradation principle of biodegradable plastics

The degradation principle of biodegradable plastics

Biodegradable plastics generally meet the requirements for physical properties of traditional plastics and can be widely used in daily necessities, commercial, and industrial fields. The main reason is that biodegradable plastics are more environmentally friendly materials than traditional plastics, which can alleviate problems such as plastic pollution and resource waste, and reduce the negative impact of humans on the earth and the ecological environment.

Biodegradable plastics are plastics that can be decomposed in specific environments and are usually made from biomass materials, starch, polylactic acid, etc. Biodegradable plastics can be broken down into smaller molecules and ultimately decomposed by microorganisms into natural compounds such as carbon dioxide and water, which will not cause permanent damage to the environment.

The principle of biodegradable plastics can be divided into three mechanisms: physical degradation, chemical degradation, and biological degradation:

Physical degradation: When biodegradable plastics are subjected to external forces such as mechanical, light, and temperature, the molecular chains are prone to break, and the plastic will be broken into small particles, ultimately forming environmental pollutants such as microplastics in the ocean.

Chemical degradation: Under the influence of chemical reactions such as oxidation, heating, and radiation, the bond structure in biodegradable plastics will break, causing the molecular chain to break and convert into small molecules such as water, carbon dioxide, and methane. Chemical degradation is usually faster than physical degradation.

Biological degradation: Some biologically active ingredients such as starch, polyhydroxy fatty acid esters are added to biodegradable plastics, making them able to be absorbed and decomposed by microorganisms, forming harmless substances such as water and carbon dioxide, thus achieving environmental friendliness.

It should be noted that although biodegradable plastics can decompose in their natural environment, this is only for natural conditions that meet regulations, such as temperature, humidity, acidity and alkalinity, etc. If the conditions are not met, biodegradable plastics can still cause environmental pollution. Therefore, it is crucial to use and handle biodegradable plastics reasonably.


What Is EcoMark Natural Branding

EcoMark Natural Branding is a new, sustainable, and cost-effective alternative to production unit labels that has the potential to completely eliminate those annoying fruit stickers and accompanying silicon. It is also free of any ink. The new system does not require a label applicator, let alone the high, absurd return on investment associated with it. Due to its zero-label cost and non-consumptive nature, its benefits are infinite.

The new laser technology can be applied to any robust-skinned food, including apples, avocados, apricots, bananas, grapefruit, kiwis, lemons, limes, oranges, pears, tangerines, papayas, peaches, persimmons, coconuts, figs, pomegranates, plums, lychees, mangoes, corn, chili peppers, cucumbers, ginger, garlic, onions, carrots, celery, tomatoes, pumpkins, zucchinis, artichokes, beets, Brussels sprouts, cabbage, eggplants, fennel, peas, potatoes, sweet potatoes, asparagus, radishes, turnips, and cauliflower.

The system uses lasers for marking to ensure brand compliance with SKU-level identification, validation of traceability and authenticity, while ensuring no long-term damage to fruits and vegetables and virtually undetectable calorie impact. The system’s advantage is that it only removes the top layer of cells from the fruit’s skin, removing the outermost layer of skin to ensure fruit integrity.

The increasing demand for Post-Consumer Recycled plastic(PCR)

The increasing demand for Post-Consumer Recycled plastic(PCR)

Post-Consumer Recycled plastic (PCR) refers to raw materials derived from plastic waste generated by households, businesses, industries, and organizations through recycling channels after being used by end-users.

This includes plastic returned from logistics and distribution chains, such as used food and personal care packaging, household appliances, and dismantled automobiles. The demand for Post-Consumer Recycled plastic signifies higher environmental significance and market value. The promotion of “proportionate use of recycled plastic” by consumer goods brands emphasizes the utilization of Post-Consumer Recycled plastic.

Post-Consumer Recycled plastic (PCR) is the truly recyclable plastic that the plastic value chain needs to circulate in order to achieve sustainable development goals.

Here are the relevant national policies regarding PCR plastic:

01 United States:

The American Chemistry Society (ACS) proposed to the U.S. Congress that packaging should be mandated to use a minimum of 30% recycled materials.

In July 2021, the American Chemistry Society released five action plans, suggesting that the U.S. Congress should take measures to improve plastic recycling rates.

02 European Union:

In 2019, the European Parliament and the Council of the European Union issued the “Directive on Reducing the Impact of Certain Plastic Products on the Environment” (EU2019/904), which sets a target for each member state to have a minimum of 25% recycled plastic content in some PET containers by 2025.

By 2030, a minimum of 30% recycled plastic should be incorporated into some beverage bottles.

03 Australia:

By 2025, plastic packaging should contain 20% recycled content.

The “National Plastic Plan 2021” in Australia sets a target for plastic packaging to have 50% recycled content by 2025, with plastic packaging specifically containing 20% recycled content.

The “National Waste Policy Action Plan 2019” mentions the goal of banning the export of plastic waste, paper, glass, and tires from the second half of 2020 to provide sufficient recycled materials as raw materials domestically.

04 Japan:

In 2019, the Ministry of the Environment in Japan, through a panel of experts under the Central Environment Council, formulated the final version of its plastic recycling strategy, which aims to reduce single-use plastic containers and packaging by 25% by 2030 and implement mandatory charges for shopping bags.

Additionally, the strategy aims to increase the reuse and recycling rates of plastic containers and packaging to approximately 60% by 2030 and achieve 100% effective utilization of all used plastics, including thermal recycling, by 2035.

05 United Kingdom:

Plastic packaging tax is imposed, with a tax applicable if the recycled content is below 30%.

On November 12, 2020, HM Revenue and Customs in the UK issued a draft legislation for the plastic packaging tax, which applies to plastic packaging produced or imported into the UK and requires a minimum of 30% recycled plastic content.

It was legislated in the Finance Act 2021 and came into effect on April 1, 2022.

06 India:

The first Asian country to launch the “Plastic Convention”: By 2030, the average recycling content of all plastic packaging should be 25%.

The “Plastic Convention in India” focuses on four targets by 2030: creating a list of single-use plastics, making 100% of plastic packaging reusable or recyclable, achieving effective recycling of 50% of plastic packaging, and ensuring an average recycling content of 25% in all plastic packaging.

07 South Korea:

By 2025, South Korea aims to increase the recycling rate of plastic waste from the current 54% to 70%.

In December 2020, South Korea planned to reduce plastic waste by reducing plastic production and increasing recycling rates.

South Korea plans to reduce plastic waste by 20% and increase the recycling rate of plastic waste from the current 54% to 70% by 2025.

08 Canada:

By 2025, Canada aims to achieve the use of 30% recycled materials in all plastic packaging. The organization “Canada Plastic Pact” hopes that by 2025, all its partners will achieve the following objectives:

Identify problematic or unnecessary plastic packaging and take measures to address them.

Achieve 100% reusable, recyclable, or compostable plastic packaging.

Ensure that 50% of plastic packaging is recycled or composted.

Achieve the use of 30% recycled materials in all plastic packaging.

Airless Pump Packaging Innovation

Airless Pump Packaging Innovation

Airless pump packaging literally means that formulas are contained in an oxygen-free state for maximum protection.

The airless pump packaging ensures a formula is never in contact with air, until the moment it is used and makes it ideal for protecting products from external contamination such as air-contact, touch by hands, evaporation and any external matters.airless pump bottle web banner

Airless system reduces the need for artificial preservatives and extends shelf life.

For high-value products, or those with active ingredients, it is important that a precise amount is applied with each use—airless systems dispense an exact dosage with each stroke.

And compared to most other types of packaging, airless packs have a high restitution rate—waste is avoided, as nearly all of the formula is used.

In order to keep tracking the trend, Canvard Packaging has various airless pump bottles design, welcome to get a quotation.

Rotating Airless Dispenser Bottles for Lotion/Serum/Liquid Foundation 15ml/30ml/50ml

Rotating Airless Dispenser Bottles for Lotion/Serum/Liquid Foundation 15ml/30ml/50ml

The most notable feature of this airless cosmetic packaging bottle is its rotating mechanism, which allows for reuse and easy operation. With a gentle twist, the airless pump head effortlessly rotates out.

When we need to use it, a gentle pump dispenses the desired skincare product. This airless bottle is suitable for lotions, serums, liquid foundations, eye creams, and other skincare products that are not excessively viscous or too fluid.

The small hole at the bottom of the bottle allows for adjustable positioning of the vacuum piston to meet different capacity needs.

The wide opening design facilitates easy refilling.

Product Material: Body – AS; Airless Pump – PP

Product Capacity: 15ml/30ml/50ml