Constant weight loss plastic cosmetic bottle packaging

Reducing the weight of the package will benefit both the environment and corporate profits. Lightweighting is currently a common industry vocabulary used to describe the practice of weight reduction on packaging by using less material to produce packaging. Generally speaking, plastic bottles, plastic cans, plastic hoses, and plastic lids are more likely to achieve weight reduction goals.

When a plastic package is successfully lightweighted, fewer resin materials are needed in the injection molding process. Due to the use of less packaging material, lightweight packaging is very beneficial to environmental protection, but it is not its only advantage. Lightweight packaging also has many practical advantages, such as the effective reduction of material costs.

More day-to-day business choices

Many plastic container suppliers said that a large number of daily chemical companies have shown great concern for lightweighting, especially for mass personal care products such as skin care products in plastic bottles or plastic cans.

According to Don Forbes, regional sales manager at TricorBraun, based in St. Louis, Missouri, "Generally, plastic bottles or plastic cans are easier to achieve than lightweight injection-molded containers." Don Forbes recently worked with a large company. The daily necessities manufacturing companies cooperated to successfully reduce the daily use of plastic cans. TricorBraun has an engineering group in Buffalo, New York. The engineering group can help consumers determine if a package can achieve weight loss goals.

Michael Hoard, of New York Packaging New York, believes that lightweighting also contributes significantly to hoses. “Our hose and cap series products are very appropriate examples. Especially when using reduced-weight hose sleeves, the advantage of lightweight is even more obvious.” This type of hose is usually applied to individuals. Nursing products.

According to DeAnn Umland, home and personal care product manager at Seaquist Closures Cap Inc., headquartered in Mukwonago, Wisconsin, USA, “Lightweight caps can ease people’s concerns about environmental protection and sustainable development. We have a responsibility to produce more. Less caps for producing energy and transporting fuel and using less raw materials.” DeAnn Umland said that the new caps developed by Seaquist Closures have reduced their use of plastics by 8 to 27%.

Marny Bielefeldt, marketing manager of Alpha Packaging (headquartered in St. Louis, Missouri, USA) believes that the list of packaging suppliers for retailers such as Wal-Mart is more competitive, and more and more daily chemical companies are considering using lighter weight. package of.

Don Forbes believes that the qualification of Wal-Mart's packaging suppliers is a favorable contributing factor for companies to take actions to reduce weight. “My clients often ask how they can make better packaging, faster production, stronger packaging, and lower weight. Today, no one needs excessive packaging. The lightweight packaging is more conducive to environmental protection, but also effective Land helps companies reduce costs. Therefore, there is no reason for Japanese companies to consider lightweight packaging."

Cost savings

When Japanese companies sell their products in large quantities, a small reduction in the amount of resin used on each package can bring considerable economic benefits to the company. "If the company's products are sold at a large volume, then lightweight packaging means effectively reducing packaging materials and costs," said Don Forbes, Regional Sales Manager at TricorBraun. "Currently, I clearly see more and more Daily chemical companies have shown increasing interest in lightweight packaging, which is mostly due to the unprecedented high prices of current resin materials."

Robert Zurek, marketing manager at Continental Packaging Solutions (Chicago), believes: "Slight reductions in package weight, such as reducing the weight of each package by only a few ounces (a ounce of about 28 grams, the same below) will significantly reduce packaging materials. The amount of use, and reduce the resources that are needed in the manufacturing process. This can bring a very significant cost benefit to the company."

Robert Zurek added: “Many organic and natural skin care product manufacturers have ever consulted me about how to reduce weight for packaging because they need to find solutions to achieve higher sustainability requirements for packaging. Attention and commitment to environmental protection efforts Manufacturers have taken the lead in the pursuit of more lightweight packaging."

Marny Bielefeldt, marketing manager at Alpha Packaging (headquartered in St. Louis, Missouri, USA), also considered the savings that can be made in the logistics sector because transporting lightweight pallets requires less fuel. "In a PET bottle with a 120 ml blown capacity, only 10% of the resin blowing amount is reduced, and the weight of a truck carrying an empty bottle is reduced by 889 pounds (about 403 kg)," said Marny Bielefeldt.

Don Forbes, Regional Sales Manager at TricorBraun, Inc. (St. Louis, MO, USA), worked with a customer for a one-and-a-half year engineering collaboration on an engineering project to try to reduce the use of plastic packaging for a mainstream public personal care product. weight. Don Forbes said: "At the time, the sustainability of packaging was not the driving force and the pursuit goal of many daily chemical production companies. The company's original goal of achieving lightweight goals was to reduce costs. While saving the cost of raw materials for packaging, The new packaging also contributed to environmental protection. Obviously, this is another rare additional gain."

Injection molding process

In order to reduce the amount of resin used in plastic bottles or caps, the injection molding process needs to be changed. “We chose the continuous injection molding technology with tape instead of the back injection molding technology to complete the injection molding process for the container caps,” Don Forbes explained. “We peeled the tape from the center of the mold and changed the threads of the caps. The weight of the lid can be reduced to achieve the goal of lightweighting."

Limitations and challenges

According to Suzanne Fenton, marketing manager at TricorBraun, “To make packaging more sustainable, lightweighting is one of the quickest measures companies can take.” However, taking into account the packaging and its products, the lightweight process is Not so simple.

Marny Bielefeldt, marketing manager at Alpha Packaging, believes that lightweighting is not a goal that suppliers can often easily achieve. “If companies consider achieving lightweight targets for containers, they need to ensure that lower-quantity resins can be reasonably distributed to achieve bottle walls. The thickness is uniform and these need to go through a lot of tests."

Sometimes, bottle types must be changed in order to achieve the goal of lightweighting. Suzanne Fenton, marketing manager at TricorBraun, believes that containers with a square or rectangular shape are usually thinner. “However, more container shapes with right angles will encounter more challenges in lightweighting because of the thickness of the bottle wall at right angles. ”

Robert Zurek, marketing manager at Continental Packaging Solutions (Chicago), believes that unlike food companies and daily chemical companies, they are more likely to achieve the goal of lightweighting because the shape of food packaging is usually more standardized. But Robert Zurek also believes that the lightweight approach to food packaging tends to be homogenous. “When food packaging is properly redesigned, companies need to ensure that most bottle designs maintain all of the same design features. Therefore, there is no significant difference in the design and feel of different bottle types.”

In general, the degree to which the weight of the container can be reduced depends on the type of product contained within the container. Don Forbes believes that if the weight of the bottle is too light, damage may occur.

Robert Zurek also agrees with the statement: "If you attach too much importance and achieve lightweight, an already strong bottle may be very fragile and easily damaged." Robert Zurek also suggested: "So, in order to ensure the sturdiness and compression resistance of the bottle , And to ensure that the thinner bottle wall does not allow air to penetrate the container into the product, usually companies need to perform some necessary tests."

Don Forbes also stressed the importance of container stability testing. He also said: "In short, the manufacturers of daily chemical products have the responsibility to choose innovative containers for their products and ensure that the new containers are satisfactory in terms of product shelf performance and injection molding processing."

How light can it be?

If manufacturing companies are working with suppliers to discuss personalized packaging and intend to build their own unique brand image, they can make some decisions at the beginning of product design to reduce the weight of the final product packaging. And if they choose the type of packaging they already have, most packaging suppliers have already determined the optimal weight for such containers, as well as the optional lowest weight. Suzanne Fenton, marketing manager at TricorBraun, suggests that even if the supplier has identified a range of weight options for prefabricated packaging types, “The manufacturer should still ask the supplier, is this the minimum weight that can be achieved?”

When it comes to prefabricated packaging, suppliers often choose the one that offers the best protection at the most reasonable price. Suzanne Fenton said: "In the past, most manufacturing companies have favored the selection of packages that are heavier than the ones needed to ensure that packaging does not cause any problems. Now, their views have changed." For example, suppliers are right After the 13g bottle was tested and passed the test, it was ultimately decided to recommend a 15g bottle for safety reasons.

"In this case, the customer needs to ask the supplier, 'Are we thinking about using a 13g bottle?'"

Performing an item-by-item basis performance test for each product and package is usually the best way to determine if the package can be lightweight. In this process, there is no so-called “guidance manual” because each product has different needs. Don Forbes thinks: “There are different ways and means to reduce the weight of different bottle types. When you want to reduce the weight of a 240ml high-density oval bottle in a specific range, you usually need to consider the product contained in the bottle.”

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