Industrial paper bags and flexographic printing
We manufacture multiwall kraft paper bags for sugar, flour, cement, animal feed, chemicals and rice, and print food wraps and shopping bags on our own flexo presses.
About Buin
Buin Industrial has made paper packaging in Paju, Gyeonggi-do, since 1987. Bag making, printing and converting all happen in one factory, so we control quality from incoming paper to the finished pallet.
Our first goal is quality and customer satisfaction. Every roll of paper is inspected on arrival, and we design each bag around the customer’s product, fill weight and packing line.
Company profile
- Company
- Buin Industrial Co., Ltd.
부인산업 주식회사 - Founded
- April 1987
- Business
- Industrial paper bags · Flexographic printing
- Certifications
- ISO 9001 · ISO 14001 · FSC
- Address
- 57 Pulmugol-ro, Paju-si, Gyeonggi-do, Republic of Korea
- Contact
- T +82-31-945-6084 · F +82-31-942-2257
- 1987Company founded · Korea’s first window grain bag
- 1997Korea’s first easy-open bag line
- 2000Two 8-color CI flexo presses installed
- 2001ISO 9001 certified
- 2004ISO 14001 certified
- 2016Square bottom bag line installed
- 2020Patent: recyclable moisture-proof kraft paper
- 2021FSC certified
A bag for every product and filling line
Valve Bag
Filled through a corner valve on automatic packers. The valve closes under product pressure, so no sealing is needed, and the block shape stacks squarely on pallets.
Easy Open Bag
Opens cleanly by pulling a tear tape, with no knife and no paper fragments falling into the product. Every bag is checked by a vision camera.
Square Bottom Bag
A folded square bottom lets the bag stand on its own, which makes filling easier and keeps stacks and shelf displays neat.
Pinch Bottom Bag
Closed with adhesive instead of stitching, so there are no needle holes. Keeps out moisture and insects and stops sifting.
Sewn Open Mouth Bag
Sewn bottom, filled through the open top and sewn closed. An economical, versatile bag for powders and grains.
Rice Bag
Multi-color printed bags for rice and grains, with an optional clear window. Buin made Korea’s first window grain bag in 1987.
PE Lined Bag
A kraft bag with an inner polyethylene liner for moisture-sensitive products. Liners are inserted and checked by hand.
Custom specification
Tell us your product, fill weight and packing line, and we will propose the right bag construction.
Ask for a quote ›What our bags carry
Sugar
Flour & starch
Cement & powders
Animal feed
Chemicals
Rice & grainsFood wraps and shopping bags
Brand designs on sandwich and burger wrapping paper, roll or sheet.
Fine logo printing on small-format sleeves in long runs.
Corporate logos and slogans printed on kraft paper bags.
Cup stock and confectionery wrap printed on 8-color CI flexo.
Roll-to-roll printing, slit to the width you need.
Three slitters for width cutting, supplied as rolls or sheets.
- Materials
- Kraft, coated paper, MG paper, non-woven
- Printing
- CI flexo 8-color · Stack flexo 4-color
- Converting
- Slitting · Roll or sheet supply
23 machines under one roof
Bag making 16 units
| Machine | Units |
|---|---|
| TuberForms kraft paper into tubes | 5 |
| Valve bag machineForms the filling valve | 2 |
| Sewing machineSews the bag bottom | 3 |
| Sealing sewing machineSewn closure with sealing | 2 |
| Easy-open machineApplies the tear-open patch | 3 |
| Square bottom machineForms the square bottom | 1 |
Printing & converting 7 units
| Machine | Units |
|---|---|
| CI flexo press8-color | 2 |
| Stack flexo press4-color | 2 |
| SlitterWidth cutting | 3 |
Certified quality, recyclable paper
ISO 9001
Quality management
2001ISO 14001
Environmental management
2004FSC
Paper from responsibly managed forests
2021Patent
Recyclable moisture-proof kraft paper
2020- Phone
- +82-31-945-6084
- buincom@buincom.co.kr
- Fax
- +82-31-942-2257
- Address
- 57 Pulmugol-ro, Paju-si, Gyeonggi-do, Republic of Korea
Google Maps › · Naver Map › - Office hours
- Mon–Fri 09:00–18:00 (Korea Standard Time, UTC+9)
Request a quote
Email us the details below and our team will reply with a quotation. We answer in English.
- Bag typeValve, easy open, square bottom, pinch bottom, sewn, rice or PE lined bag, or printed wraps and shopping bags
- Product and fill weightFor example: sugar 25 kg, cement 40 kg, animal feed 20 kg
- QuantityMonthly volume or order quantity
- Size and printBag dimensions, number of plies, print colors, or a photo of your current bag
- DeliveryDestination and preferred first delivery date
Need paper bags made to your specification?
Send us your product and quantity and we will get back to you.