The dyehouse says the rope creases will disappear in setting. The garment factory says the roll is uncuttable. The answer depends on when the mark formed, whether it remains on the delivered fabric and what the order agreed to accept.
A crease can be normal in process and unacceptable in the finished roll
Among quality disputes between dyehouses and garment factories, crease marks are a persistent point of friction. The dyehouse argues: “It’s rope dyeing in an overflow vat—a few creases are normal. They’ll iron out during heat-setting.” The garment factory counters: “The second we unroll it, it’s covered in crow’s feet. We can’t even cut it—this whole batch is scrap.”
Both sides may be describing what they see, but “crease” is too broad a diagnosis. Some folds relax in later processing. Some become fixed marks. Others originate before dyeing or during storage and transport. To decide who pays, first trace how the mark formed and then inspect the fabric at the stage specified in the purchase agreement.
1. Crushed in the dye vat: rope creases
In overflow and airflow dyeing machines, fabric travels in rope form and repeatedly folds and bends. Wet heat, fabric compression, circulation and fiber relaxation can leave crow’s feet or rope marks. Cotton Incorporated's processing guidance specifically aims to let cotton knits relax without forming creases, folds, crow’s feet and rope marks. [1]
The contributor’s production rule is to load a vat at roughly 60%–85% of rated capacity, with more room for heavy or stretch fabric. An overloaded chamber or a fabric rope that circulates too slowly can increase repeated folding and compression. That range is a working target rather than a rating that fits every machine: check the manufacturer’s capacity, liquor ratio, rope length and actual circulation before accepting a batch plan.
Inspect a marked greige sample before dyeing and a sample after the bath. If the mark first appears in the vat, preserve the roll position, machine record and photographs before any re-setting trial.
2. Fixed during cooling: thermal shrinkage marks
Cooling changes the way a hot, wet fabric relaxes and shrinks. If the cloth cools unevenly while folded or compressed, a localized mark can become difficult to remove. Thermoplastic fibers such as nylon deserve particular attention, but a claim that every rapidly cooled crease is molecularly “frozen” and impossible to rescue needs a trial on the actual construction.
The supplied process target is a cooling rate of 1–1.5°C per minute, particularly from 130°C to 100°C; the draft contrasts this with a rushed 2–3°C per minute. Record these numbers as the contributor’s proposed setting, not as a universal standard. A nylon, polyester, cotton or blended knit may have a different bath temperature and safe cooling profile. Ask the dyehouse to document the recipe and run a representative crease-removal trial before deciding whether a visible mark is permanent.
3. Crushed during extraction: mechanical pressure marks
Centrifugal hydroextraction can press stacked layers together. If a fold is trapped under pressure, the cloth can leave the extractor with a sharp line or crow’s-foot mark. Longer extraction and higher speed may deepen the impression, especially on a heavy or stretch construction. Cotton Incorporated’s defect glossary also describes a crease streak produced when folded fabric passes through squeeze rolls in dyeing. [2]
The useful production question is how to remove enough water without creating a mark. For a crease-sensitive lot, compare the existing centrifugal method with an open-width extraction or nip-roll route where the equipment and fabric allow it. Log the fabric condition before and after extraction; a final inspection photograph alone cannot tell which step introduced the line.
4. Left after stentering: can heat setting rescue it?
Stentering is the last planned opportunity to improve flatness before the finished roll reaches the cutting table. A shallow fold may relax under a suitable temperature, dwell time and controlled width. A deeper mark can remain even after a careful second pass. The actual result depends on fiber, prior heat history, finish and how the mark was formed.
Do not promise that more tension or a hotter setting pass will flatten every crease. Excess heat or tension can change width, hand feel, stretch recovery or shade. Mark the defect on a sample, run an agreed re-stentering trial and compare the treated area with an untouched control before approving bulk rework.
2. Crease liability determination cheat sheet
The supplied chart classifies marks by appearance, likely process stage, initial responsibility and whether a correction is worth trying. The English translation follows below. These are starting points for investigation: a cause still needs the incoming inspection, roll history and process evidence, and a claim still depends on the agreed finished-fabric acceptance standard.
| Crease type | Typical appearance | Likely stage | Initial responsibility to examine | Can it be rescued? |
|---|---|---|---|---|
| Shallow fold / crow’s feet | Visible fold, but the fabric can be stretched flat | Fabric-rope movement in the dye vat | Dyehouse; potentially correctable | May disappear during heat setting |
| Heat-shrinkage dead crease | Deep, hard line that does not relax when stretched | Cooling too quickly | Dyehouse; potentially irreversible | Often cannot be removed |
| Extraction pressure mark | Regular fold line along the fabric direction | Centrifugal hydroextraction | Dyehouse; preventable | A mild mark may disappear in setting |
| Residual crease after setting | Crease remains visible after heat setting | Insufficient setting temperature or tension | Dyehouse; potentially correctable | A second setting pass may improve it |
| Storage crease | Fold pressed in during a long period of stacking | Storage or transport | Depends on the documented stage | A mild mark may be removed |
| Knitting-stage crease | Fold already present in greige fabric | Knitting or greige handling | Knitting mill / fabric merchant | Depends on its depth |
Core diagnostic logic: a live crease or a dead crease?
If a crease disappears under the agreed setting process, it was a correctable process mark. A garment factory assessing a roll before its contracted finishing route is complete should not treat that unfinished appearance as the final acceptance result. If a crease persists after setting and a controlled re-stentering trial, it is a persistent or “dead” crease on the delivered fabric. The dyehouse should investigate vat load, cooling, extraction and setting rather than dismissing the mark as normal.
Persistence proves that the finished fabric has a problem; it does not by itself prove that fast cooling or vat overloading caused it. Compare the greige sample, after-dyeing sample and final roll, then apply the contract’s notice and liability terms. A simple hand-stretch check can identify a fold worth testing, but it cannot replace a controlled setting trial or settle responsibility alone.
3. Operational best practices to prevent creases
For dyehouses, start with three controls. Keep the load appropriate for the actual machine and fabric; the contributor suggests 60%–85% of rated capacity, with smaller loads for heavy and stretch cloth. Set and log the cooling schedule; the proposed 1–1.5°C per minute target in the 130°C-to-100°C interval should be confirmed against the fiber, dye and equipment. For crease-sensitive cloth, compare centrifugal extraction with an open-width or nip-roll method before committing the lot. One extra roll in a crowded vat is poor value if it sends two rolls back for reprocessing.
For garment factories, inspect the fabric at the contracted delivery stage, normally after the specified setting. Separate a fold that a documented setting trial removes from one that persists. Photograph the defect with the roll and meter number visible, retain a sample and report it within the notice period. Define the acceptable number, depth, length and location of creases before production; “no creases” without an inspection method invites arguments.
Fabric merchants can prevent the factories from talking past one another. Put the intended machine route, need for pre-setting, approved load and cooling plan, extraction method and finished-fabric acceptance criteria into the processing order where those details matter. Keep a signed sample and a clear handover record at each stage. That gives both sides a common basis for a claim.
Final thoughts: decide on the finished fabric, then trace the cause
A dyehouse is right that rope processing can create temporary folds. It is not right to call every crease acceptable. A garment factory is right to reject a roll whose persistent marks prevent cutting to the agreed standard. It should still distinguish unfinished fabric from the finished goods it contracted to receive.
Most disputes become expensive because the order never defined crease acceptance, the first affected sample was discarded, or nobody documented whether a setting trial removed the mark. Agree on the inspection stage, defect limit, notice period, rework procedure and compensation terms before the bulk lot runs. When ordering fabric in Keqiao, put crease marks on the contract as their own inspection criterion. Then, if a mark appears, the two factories can work from the same record rather than from competing descriptions of what is “normal.”
Edited from the two contributor-supplied parts, preserving their order and translating the supplied Chinese liability chart into an English HTML table. Cotton Incorporated's technical material on cotton knit processing and its defect glossary were used to check terminology. The numerical settings in the contributor's text are process targets to confirm for a given machine and fabric, not universal specifications.
The diagnosis concerns the condition of a specified fabric at the agreed inspection stage. A permanent crease can establish a quality problem without, by itself, identifying which process or company caused it. Liability must follow the first documented appearance, retained samples, processing records and contract terms. Fiber chemistry, dyeing temperature, machine load and cooling schedules differ by construction and equipment.