Pad formats: the length decides more than the absorbency figure.

The absorbency number on a specification sheet is usually expressed in grams, measured under a standard test load. It is useful for comparing two pads of the same length and misleading for comparing two pads of different lengths. A 290 mm pad and a 245 mm pad can carry the same core recipe and produce very different real-world results, because the longer product has more surface area to spread the same volume across.

That is why we quote length first in a conversation and absorbency second. A buyer who says their market wants a higher absorbency figure is usually describing a complaint about leakage, and leakage on a correctly specified pad is more often a length or a wing problem than a core problem. Changing the core to fix it adds cost and does not solve the complaint.

The same logic applies to wings. A winged pad holds position better because the wings wrap around the underwear edge and prevent rotation. A wingless pad is cheaper to make and easier to wrap, and it works in markets where the product is changed frequently enough that movement is not the dominant failure mode. Choosing wings by price alone produces a product that shifts, which generates a complaint that looks like a quality issue.

Wrap style is the third decision and the one most often treated as an afterthought. An individually wrapped pad can be carried in a bag without contamination and opened with one hand. A pad in a multi-pack without individual wraps has to be taken from a pack that is already open, which is fine at home and awkward everywhere else. The wrap adds cost per piece and is the difference between a product a wearer will carry and one she will only use at home.

There is a fourth decision that rarely reaches a specification sheet: how the pad is folded inside the wrap. A pad folded once and sealed flat is thinner in the bag and opens without unfolding; a pad folded twice is more compact and takes longer to open. Neither is wrong, and the choice is usually made by whoever designs the wrap rather than by the buyer, which is why it is worth raising explicitly when a market has a strong preference.

The topsheet is where most of the perceived quality sits. A through-air-bonded nonwoven feels soft and stays soft under compression, which is why it is the default. A perforated film feels drier on first contact and can feel plasticky after an hour, and it is chosen when a market explicitly prefers that initial sensation. Bamboo-fibre and organic cotton are chosen for the material story rather than for a performance difference, and they cost more.

The core ratio is the specification most likely to be quietly changed by a competing supplier. Removing pulp reduces cost and reduces the core's ability to spread liquid laterally, which concentrates the load and makes the pad feel wet sooner. The absorbency figure can stay the same while the real-world experience gets worse, which is why a buyer comparing two quotes on grams alone is comparing the wrong thing.

Adhesive is the cheapest component and the one that generates the most complaints. Too little and the pad moves; too much and it tears the underwear on removal, which a wearer reads as a defect. The pattern is placed to hold the pad flat at the ends and along the wings without gripping fabric in the centre, where removal force concentrates.

The individual wrap deserves its own note because it is the component most often cut to reach a price. A PE film wrap costs a small amount per piece and protects the product from dust, from handling and from the adhesive picking up lint before use. A paper wrap costs less and tears unevenly, which produces a complaint about the pack rather than about the pad.

Wrap design also affects how the product is opened. A wrap with a tear notch at one end opens with one hand; a wrap with a sealed edge all round requires two. In a public bathroom that difference is the whole experience, and it costs nothing to specify correctly at the design stage.

Thickness is the specification buyers ask about after length and wings, and it interacts with both. Compressing a core to reduce thickness makes it stiffer, which changes how the pad conforms to the body. A thin pad that does not conform fails at the edges for the same reason a short pad does, which is why thickness is reduced by changing the core profile rather than by pressing harder during lamination.

Core weight is the check that catches the most common cost-down. A supplier asked to reduce price will often reduce pulp, which is invisible in a finished pad and measurable on a scale. Checking core weight per batch is how that stays under control rather than surfacing as a complaint six months later.

Wing adhesion is checked separately from body adhesion, because the two fail in different ways. A wing that releases too easily lets the pad rotate; a wing that grips too hard tears the underwear when the pad is removed. Both are tested against the same reference fabric so results are comparable across batches.

Retention samples are kept per run. On a flat product they are especially useful for settling disputes about thickness, since a pad that has been compressed in transit measures differently from one that has not, and a retained sample from the same batch shows which happened.

The starter minimum for private label work is 10,000 pieces per size. On a pad that is roughly 1,250 packs at eight pieces per pack, which is a smaller commitment than the same piece count on a pant because the pack holds more units.

Changing length is the one specification change that carries a real setup cost, because it requires a cutting change on the line. Changing pack count, topsheet, wing depth or artwork does not. That distinction is worth knowing before a buyer negotiates, because a request for a non-standard length is a different kind of ask from a request for a different pack.

Artwork remains the most common source of delay. A bag that is missing a barcode or a net content statement cannot be printed, and reprinting is both slow and expensive. We ask for a complete artwork pack before scheduling, which is stricter than many buyers expect and cheaper for everyone in the end.