Paper Bags

Multi-wall paper sacks, engineered for the powder you pack

Open-mouth, valve, PE-lined and building-material bags — printed and produced in our own factory from 5 kg to 50 kg loads.

Product Range

Choose the structure first, then customise everything

Paper type, number of plies, gsm, liner, valve, bottom style and print can all be specified on your RFQ.

Multi-wall open-mouth paper bag illustration

Multi-Wall Open-Mouth Bags

2–5 ply kraft or white paper with sewn or pasted bottom. The workhorse for flour, feed ingredients, starch and other 5–50 kg dry products.

Sewn bottom Pasted bottom Square bottom stand Side gusset

Valve Paper Bags

Fast valve filling, clean and tidy stacking. Choose paper valve, inner/outer valve or ultrasonic valve that can be heat-sealed after filling.

Paper valve Inner / outer valve Ultrasonic valve Perforated plies

PE-Lined & Sewn-Bottom Bags

Kraft paper construction with a food-grade PE inner bag, ideal for sugar, oatmeal, starch and additives that need strong moisture protection.

PE liner 0.04–0.07 mm Moisture resistant Reinforced sewn bottom

Building material valve bag illustration

Building-Material Bags

Valve sacks for putty powder, tile adhesive, fillers and spray mortar. Reinforced bottom strips carry 20–50 kg without leaking or tearing.

20–50 kg Multi-valve forms Inner/outer reinforcement Multi-language print

Options

Structures and choices we commonly build

Option	What it means	Typical use
Paper plies	2–5 plies of kraft or white paper, 70–110 gsm per ply	Lighter bags for 10–25 kg; more plies for 40–50 kg
PE inner liner	Food-grade or thickened PE bag inside the paper tube	Sugar, starch, oatmeal, moisture-sensitive powders
Valve type	Paper valve, inner/outer patch valve or ultrasonic valve	Valve filling lines in food, chemical and building plants
Bottom style	Sewn bottom, pasted/square bottom, with reinforcement strips	Standing bags, heavy loads, high stacking
Printing	Flexo, 1–8 colours, full print or spot print	Branding, barcode, multi-language instructions
Bag size & load	Custom dimensions, commonly 10 kg to 50 kg net weight	Match your filling machine and shipping pallet

Send Your Bag Specification

Flexographic printing machine inside CX Package workshop

In-House Printing

Your artwork becomes a production-ready print

Our printing team reviews artwork for bag structure and colour, then prints with flexographic presses in our own workshop — no middleman between design approval and production.

Artwork check before sampling
Colour matching with customer standards
First-piece inspection on every order
Print on paper, film and laminated substrates

Need a paper bag with a valve, a liner, or a tricky size?

Send us length × width × gusset, fill weight, material and quantity. We will advise the structure and quote.

Ask CX Package