Thinking about the environment through “My Bottle,” a necessity in student life Tiger Corporation Launches My Bottle for SDGs Project for School


Thinking about the environment through “My Bottle,” a necessity in student life
Tiger Corporation Launches My Bottle for SDGs Project for School

The first “Hatsushiba Ritsumeikan Junior High School x SDGs in School”, the second “Keio Chutobu Junior High School x Support Project”,
and the third project, “Osaka Shoin Women’s University x Plastic Waste Reduction,” will be followed by other initiatives.

Tiger Corporation (President: Yoshisato Kikuchi, Head Office: Kadoma, Osaka), a world leader in thermal control technology, will launch the “Tiger Corporation My Bottle for SDGs Project for School” in 2024 to raise awareness of environmental issues with students through the “My Bottle”, a familiar part of students’ lives. We have been working with each school to provide classes on “My Bottle Sustainable Action” and promote bottle use and recycling, but this year we will turn these activities into a project.

For 100 years since our founding, we have been committed to vacuum insulation technology and temperatures, and we are committed to the “Four Promises” of “NO Conflict Minerals,” “NO Fluorine Coating,” “NO Roundup Production,” and “NO Plastic Waste” in our vacuum insulated bottles, as well as to the “Circular Economy” initiative to collect stainless steel bottles. In fiscal 2024, we will contribute to the realization of a sustainable society by creating opportunities to think about the environment with schools and students through the “My Bottle,” which is familiar to students.

First Phase “Hatsushiba Ritsumeikan Junior High School x SDGs on Campus  

In January 2024, we implemented an initiative with Hatsushiba Ritsumeikan Junior High School in Osaka Prefecture, which supports environmental and health-conscious school life and promotes environmental education and science and technology education. The program consisted of (1) a class by Tiger Corporation on My Bottle and environmental initiatives, and (2) a presentation of originally designed bottles designed by the students. Before the graduation ceremony in March, the school presented vacuum-insulated bottles to all 125 graduates of the junior high school so that they could use the bottles in their future student lives.

Second Phase “Keio Chutobu Junior High School x Support Project

Keio Chutobu Junior High School, which participated in the collection of stainless steel bottles no longer needed for the fall 2023 exhibition showcasing the results of student life, began selling originally designed bottles designed by students for the entire junior high school in February 2024. A portion of the proceeds will be donated to Ghana (flood relief).

Third Phase “Osaka Shoin Women’s University x Plastic Waste Reduction

The “eco project,” a student-led activity, is developing a my-bottle campaign on campus to solve problems such as plastic issues and CO2 reduction. Last year, Tiger Corporation employees participated in the “SDGs Study Session” as lecturers and discussed the creation of a system on campus to make it easier for students to continue the my-bottle lifestyle. We will continue to promote this initiative in collaboration with each school.

Conducted a class on “My Bottle Sustainable Action

On January 22, 2024, the Vacuum Insulated Bottle Circular Economy Promotion staff gave a class on “My Bottle’s Sustainable Action” to 125 students at Hatsushiba Ritsumeikan Junior High School. The students took notes and listened intently to the lecture, as they had learned about the mechanism of vacuum insulation in their science class.

“Lesson Content”

(1) Mechanism of Vacuum Insulation

Vacuum insulation technology is one of our core competencies. The lecture explained the three elements of heat transfer, “conduction,” “convection,” and “radiation,” and the structure of how vacuum-insulated bottles keep heat and cold.

(2) Promotion of Bottle Recycling

When households dispose of metals as noncombustible garbage, recycling generally starts with “mixed metals” such as stainless steel, aluminum, copper, and iron, and it takes a lot of labor to extract a single recycled material from the mixed metals. In contrast, our “collection and recycling of stainless steel bottles,” stainless steel can be recycled with less labor and raw materials with fewer impurities can be secured for recycling.

(3) My Bottle Promotion (Benefits of My Bottle)

Having one’s own bottle creates the benefit of being environmentally friendly by eliminating disposable plastic waste. We discussed with students the advantages of having their own bottle at school, sports, events, etc.

Each school’s “Original Design Bottle” and initiatives


Hatsushiba Ritsumeikan Junior High School has set a school-wide goal of eliminating plastic bottles for beverages, and has installed water supply facilities on campus to support an environmentally friendly and healthy school lifestyle through the use of personal water bottles. To promote environmental education and science and technology education, third-year junior high school students who took the class came up with their own logo, and the school presented all third-year students with a bottle. The logo features a sea turtle, which is threatened with extinction due to environmental problems, and represents the students’ desire to create an environment where sea turtles can swim anywhere in good health.

Keio Chutobu Junior High School has created many opportunities for students to think about the SDGs through their school life. In the fall of 2023, the Social Research Group held an exhibition and collection of used stainless steel bottles at an exhibition to showcase the results of daily student life, and many bottles were collected by concerned parties. This spring, we began selling bottles with original designs for the entire middle school. The design is based on the wish for reconstruction from the flood damage in Ghana, and depicts a yam leaf and a cacao leaf, both of which are Ghanaian specialties.

Osaka Shoin Women’s University’s “eco project,” a student-led activity, focuses on the plastic problem and aims to raise the environmental awareness of each student by collecting disposable contact cases and eco-caps and promoting the My Bottle campaign. To encourage these activities, the university presented bottles to new students in the class of 2024. The camphor school’s communication mark engraved on the bottle represents the image of all people gathered at camphor, flapping their wings toward a bright future.

[Reference Materials] Recycling model built by Tiger Corporation

Stainless steel bottles no longer needed by households are collected at local schools and businesses and consolidated with recycling specialists. Recycled stainless steel and polypropylene (PP) resin products are produced from the collected recycled materials.

The recycled stainless steel material is transformed into new products and returned to customers, and the recycled resin products are utilized at our production plants.

We aim to realize a circular economy that reduces environmental burdens and achieves sustainable economic growth through the recycling of resources, instead of consuming and disposing of them. (Products using recycled stainless steel are not limited to vacuum insulated bottles.)

Click here for the Circular Economy special page

Step 1
Collect stainless steel bottles

Collection boxes are installed at municipalities and dealers. We have set up collection boxes in municipalities and dealers.

*Plastic and aluminum bottles cannot be collected.
*Stainless steel bottle pouches cannot be collected.
*With the lid on, wash the bottle well and drain the water.

Step 2
Recycled by a recycling specialist

It is divided into the bottle body and the stem, and the stainless steel raw material from the bottle body and the PP resin (polypropylene) raw material from the stem are recycled.

Step 3
Using recycled raw materials, Production of stainless steel materials and resin products

The raw materials for stainless steel are handed over to stainless steel manufacturers, where they are reborn as new stainless steel materials. PP resin (polypropylene) raw materials are handed over to resin product manufacturers and reborn as resin products (resin boxes used in our factories, etc.).

Step 4
Commercialized using recycled stainless steel. to the customer

Stainless steel materials are reborn into various stainless steel products that are familiar to everyone, and are used in homes.

*Vacuum insulation bottles are not the only products that use recycled stainless steel.

Introduction of Tiger Vacuum Insulated Bottles

Four Promises for Tiger Vacuum Insulated Bottles (Stainless Steel Bottles)

In order to achieve health consciousness, human rights consciousness, and environmental consciousness, Tiger has made the following four pledges for its vacuum insulated bottles: no conflict minerals, no fluorine coating, yes our own factories, and no plastic waste.

Learn more about our four pledges:

Tiger Vacuum Insulated Carbonated Bottle MKB-T Type

Equipped with our unique “BubbleLogic” carbonated water bottle structure. It can hold cold, hot, and carbonated beverages, making it suitable for use in all aspects of student life.

With the easy-to-clean “Super Clean Plus” finish, the bottle is dishwasher and dryer safe, making it an ingenious bottle that is easy to use every day.

Size: MKB-T036 (0.36L)/MKB-T048 (0.48L)/MKB-T060 (0.6L) *Photo: MKB-T048 (0.48L)
Color pattern: Stone Black “KK”, Lake Blue “AL”, Egret White “WK”

Tiger vacuum insulated bottles list web page:

Controlling temperature, creating a brighter future. Watch it now – 100th anniversary statement movie!

Cold? Warm? Just right?
Even a tiny temperature change can give our hearts comfort and strength.

From family gatherings to exploration of space,
a temperature change of a single degree
can open our eyes to life more precious.
Tiger Corporation has been in business for 100 years.
Now, we are looking forward to the next 100 years.

100th anniversary statement movie
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