A4 Portrait Non Woven Bag – Ultrasonic Finished (B0143)

The go-to branded bag for corporate events, conferences, seminars, and trade shows across Singapore.

  • This A4 portrait non-woven bag features ultrasonic-welded seams for a cleaner, stronger finish than a standard stitched non-woven bag, a gusseted base for added depth and structure, and a print surface sized to carry your logo, event name, or campaign artwork prominently.
  • Available in 14 colours with custom colour sourcing available for out-of-stock shades. At 34 x 29 x 8 cm it fits A4 documents, a notebook, a water bottle, and standard event collateral comfortably.
  • One of the most practical and cost-effective branded event bags in Printopia’s catalogue. Bulk orders welcome.

 

Reach out to us below to get a quote for your next campaign/event. 

The event bag that most Singapore corporate events rely on

If you have attended a conference, seminar, trade show, product launch, or corporate roadshow in Singapore in the last five years, you have almost certainly carried a version of this bag.

The A4 portrait non-woven bag is the standard format for event door gifts and collateral bags across the Singapore corporate events market, and for good reason. It is lightweight, affordable at volume, available in a wide colour range, prints cleanly, and carries everything an event attendee needs throughout the day without fuss.

What distinguishes this bag from a generic non-woven event bag is the ultrasonic finishing. That single detail changes the quality level of the product in a way that most people can feel but cannot always name, and it is what makes this bag a reliable choice for organisations that care about how their brand is represented at point of distribution.

Material and construction

Made from non-woven polypropylene, the standard material for high-volume event bags. Non-woven polypropylene is lightweight, easy to print on, and available in a broad colour range that other bag materials cannot match at a comparable price point. It is water-resistant to light splashes and holds its shape well under the load of a full day of event collateral, which is its primary use context.

At 34 x 29 x 8 cm, the bag is sized to A4 portrait format with an 8 cm gusseted base that gives it meaningful depth. The gusset means the bag stands open and accommodates volume without collapsing, which makes it significantly more practical for distributing event materials, goodie bags, and participant kits than a flat non-gusseted bag of the same face dimensions.

What ultrasonic finishing means and why it matters

Standard non-woven bags are sewn at the seams with visible stitching. Ultrasonic finishing bonds the seams using high-frequency sound waves that fuse the fabric layers together without any thread. The result is a seam that is cleaner in appearance, stronger under stress, and free from the fraying and thread-pull risk that affects stitched non-woven bags after repeated use.

For event door gifts that will be handed to hundreds or thousands of attendees, the ultrasonic finish means a more consistent quality presentation across the entire batch, with no visible stitch variation or thread ends to suggest a lower-quality product. For organisations that distribute these bags at premium conferences, product launches, and high-profile brand events, that consistency matters.

Colour range

Available in 14 standard stock colours: Navy Blue, Black, Grey, Light Blue, Lime Green, Magenta, Maroon, Orange, Purple, Red, Royal Blue, Sea Blue, White, and Yellow.

This is one of the widest standard colour ranges of any bag in Printopia’s catalogue, covering the primary brand palettes of most Singapore organisations without requiring custom colour sourcing.

For brand colours that fall outside the standard range, Printopia can source closer colour matches subject to minimum order quantities and lead time.

Mention your brand colour reference when you enquire and we will advise on available options.

Custom branding options

The front face of the bag provides a large, flat print surface ideally sized for event branding.

  • Silkscreen printing is the standard method for non-woven bags at event volumes, delivering clean, vibrant results for logos, event names, sponsor acknowledgements, and campaign artwork at the lowest cost per unit.
  • Full-colour printing is available for designs with photography, gradients, or complex illustrated artwork.

The back face is available as a secondary branding zone for sponsor logos, event schedules, or additional campaign messaging.

Not sure which method suits your design?
Share your artwork with us and we will recommend the best approach.

Suitable corporate event contexts

This bag is the standard choice for conference and seminar participant kits where attendees collect collateral throughout the day. It works as a trade show and exhibition floor bag for distributing brochures, product samples, and branded merchandise. It is a practical format for community event and charity run goodie bags where a large volume is needed at an accessible price point. For product launches and roadshows where the bag itself carries the campaign branding, the large print surface and 14-colour range make it easy to execute a strong branded result.

Ordering information

Every order includes a free digital mockup so you can see how your branding looks on the bag before we go into production.


Frequently asked questions

What is ultrasonic finishing on a non-woven bag?
Ultrasonic finishing uses high-frequency sound waves to weld the seams of the bag together instead of stitching them. The result is a cleaner seam edge with no visible thread, stronger bonding at stress points, and no fraying risk. It produces a more consistent quality finish across a large batch than stitched seams, which matters for event distributions where hundreds or thousands of bags are being handed out simultaneously.

What is the difference between a gusseted and non-gusseted bag?
A gusseted bag has a folded expansion panel at the base, in this case 8 cm, that allows the bag to stand open and hold depth when loaded. A non-gusseted flat bag collapses when filled and has significantly less practical volume. The 8 cm gusset on this bag means it stands upright on a registration desk and holds a full day of event collateral, a water bottle, and personal items comfortably.

Can I order in a colour that is not in the standard range?
Yes, subject to minimum order quantities and lead time. Printopia can source non-standard colours closer to your brand palette.

Share your brand colour reference or Pantone code when you enquire and we will advise on available options.

What logo colours work best on different bag colours?
White logos print cleanly on all dark colours including Navy, Black, Maroon, and Royal Blue. Black logos print well on all light colours including White, Yellow, Light Blue, and Grey. For mid-tones such as Red, Orange, and Purple, both white and black logos produce strong results.

We will advise on optimal logo colour contrast when you share your artwork.

What is the minimum order quantity?
MOQ is required and varies by colour and specification.

Please enquire with your required colour, quantity, and event date and we will confirm MOQ and pricing.

Dimensions 34 × 29 × 8 cm
material

Non-Woven

colour

Navy Blue, Black, Grey, Light Blue, Lime Green, Magenta, Maroon, Orange, Purple, Red, Royal Blue, Sea Blue, White, Yellow

finish

Ultrasonic welded seams

base

Gusseted, 8 cm depth

orientation

A4 portrait

custom colour sourcing

Available for out-of-stock colours, Subject to MOQ and lead time

printing methods available

Silkscreen printing, Full-colour printing

branding zones

Front face (primary), Back face (secondary)

lead time

5 to 7 working days from artwork approval (in-stock colours)

care instructions

Wipe clean with damp cloth. Do not machine wash.

best for

Conference and seminar participant kits, Trade show and exhibition floor bags, Product launch and roadshow door gifts, Community event and charity run goodie bags, Corporate event collateral distribution

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