When Scissors Fold Hair Instead of Cutting It

Separate section preparation, cutting load and instrument behaviour before changing the tension or requesting service.

4 min read Updated 14 September 2026

Hair folding between the blades is a symptom, not a diagnosis. It may send you straight to the tension screw, but changing the adjustment before checking the situation can make the original problem harder to identify.

Stop using scissors that are pulling or behaving unpredictably on the dog. Then separate the condition of the hair, the amount presented to the blades and the behaviour of the instrument itself.

Distinguish empty movement from loaded cutting

The force you feel closing scissors includes resistance within the instrument as well as the force needed to cut the material. Research modelling scissor cutting explicitly separated blade-contact friction from material deformation and fracture. Its test materials were thin sheets, not dog coats, so it cannot supply a grooming tension setting. It does explain why heavy-feeling scissors and poor cutting are not interchangeable observations. Read the scissor-force research.

After following the prescribed cleaning and care routine, note whether the scissors move smoothly without hair. Keep your fingers away from the cutting edges. Binding, unusual noise, damage after a drop or a loose component warrants assessment before the tool returns to work.

Check what you were asking the blades to do

Was the section prepared and dry enough for the intended finish? Was there residual product or cut hair affecting presentation? Were you trying to close on a bundle larger than you could control?

Describe those conditions before altering them. If you change the section size, moisture, angle and screw setting together, a better cut will not tell you which change mattered.

For training comparisons, use only practice material approved for your scissors and follow your tutor's method. A research paper that tested paper or plastic is not an instruction to cut those materials with your grooming scissors.

Identify where the problem occurs

Record whether the folding appears near the pivot, through the middle of the blade, at the tips or throughout the closure. Does it occur with a small manageable section, or only when you overload the cut? Does the problem remain when a tutor demonstrates with the same prepared material?

These observations narrow the service question without pretending to identify an invisible edge defect. A pair of scissors can look intact in ordinary light and still need professional attention.

Use the correct adjustment instructions

Tension mechanisms differ. Follow the instructions for the exact model or ask for support. Do not apply a remembered “drop angle”, number of clicks or screw position from an unrelated pair.

If permitted adjustment does not resolve the issue, stop. Tightening further to force a cut can leave you working against unnecessary resistance without fixing the edge or alignment problem.

For VUNRO equipment, use our contact page with the model, a clear fault description and photographs where useful. Keep the scissors out of service until an unresolved fault has been assessed.

Choose the replacement role before replacing the tool

The VUNRO 7.5-inch Precision Straight Scissors are intended for continuous straight cutting lines. The 7.5-inch Precision Curved Scissors offer a different cutting shape for appropriate contours. Neither choice removes the need for preparation and controlled sectioning.

A dependable spare can keep an appointment moving while a suspect tool is assessed. It should be familiar and suitable for the task, rather than an unfamiliar specialist scissor pressed into service because it happens to be clean.

Send a better service note

Include the model, any recent impact, the maintenance performed, where the folding occurs and the conditions used for your comparison. “Folds a small prepared practice section at the final part of closure; smooth empty movement” is more useful than “not sharp”.

For a structured comparison, read A Scissor Test That Separates Technique from Tool Trouble. The aim is to return a reliable tool to work with a clear understanding of what needed attention.

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