In the public textile washing industry, the damage to towels after washing is a common and troublesome problem for hotels’ own laundries or professional laundry factories. It has a bad impact on linen appearance and service life, or even leads to premature scrapping of towels. This directly increases operating costs.
The causes of towel damage are complex and by no means due to a single factor. This article systematically analyzes the root causes in terms of equipment manufacturing, physical effect, chemical damage, and inherent towel quality.
Equipment Manufacturing
The precision of the internal equipment structure is the primary hardware foundation that determines the damage rate of the linen. Common manufacturing defects are like traps for towels.
- Door gap
The clearance between the inner drum door and outer door ring is key. A large gap can suck thin towels in and cause tangling and clogging. An overly small or uneven gap directly pinches, pulls, and tears fabrics.
- Inner drum craftsmanship
– Burrs
Unfinished burrs left after drum punching are like tiny steel needles. They snag and pull threads.
– Gap Risks
Small gaps at welded joints between V-shaped ribs and the drum wall may expand under thermal expansion and contraction during operation. The fibers of towels are very easily drawn in and torn.
- Kingstar solutions
– Precision machining and uniform gaps
The outer cylinder is precisely machined to ensure high concentricity with the inner drum. Uniform and controllable opening gaps can effectively prevent fabric pinching.
– 270° hemming process
The inner drum opening has a smooth rolled-edge design for seamless transition. This completely removes physical causes of snags and scratches.
– 3.5° rear-tilt design
The unique rear-tilt angle of the outer cylinder creates a natural slope in the washing liquid level, and guides linen to tumble evenly inside the drum instead of piling at the door. This avoids localized excessive friction and compression damage.
Physical Effect
Even with perfect equipment, improper washing programs will still cause cumulative physical damage to towels.
- Excessively long washing time
Washing relies on mechanical friction for stain removal. However, excessively long tumbling means meaningless fiber friction and gradual strength loss.
- Excessively high spin force
Excessively high spin speeds generate destructive centrifugal force. It damages fabric structure and makes towels limp, loose, or even torn.
- Over-drying
Excessively high temperatures or prolonged drying make cotton fibers brittle and reduce tensile strength. Failure of the dryer’s cool-down function causes uneven drying and localized overheating damage.
- Kingstar solutions
– Pre-set optimized programs
30 built-in professional washing programs provide scientifically matched washing time and force for different types of linen (including towels). It balances cleanliness and fiber protection.
– High-efficiency spin design
The whole machine is reinforced around a 400G spin rate. Scientifically proven, this rate achieves the best balance between effective water removal and fiber protection, and avoids damaging speeds used merely for ultra-low moisture content.
Chemical Damage
- Chemical residue
Insufficient rinsing leaves alkaline substances or chloride ions, so towels turn gray and stiff. Stiff fibers lose flexibility and break more easily during repeated twisting. Excessive chlorine bleach or uncontrolled temperature directly damages cotton fiber molecular chains through oxidation.
- Misuse of acid agents
– Strong acid washing
Frequent use of oxalic acid to treat yellowing violates cotton’s property of being alkali-resistant but acid-sensitive. It greatly shortens towel life.
– Excessive neutralizer
Standard pH is skin-friendly, mild acidity, but overuse of neutralizer also weakens fiber strength.
Towels Quality
Towel quality is the basis of its durability. Market products vary in quality. Corner-cutting at any stage, from cotton yarn sources and spinning to weaving and finishing (such as short-staple cotton, insufficient yarn strength, or reduced yarn density), results in low-washability towels. These towels easily damage even under standard washing processes.
Q&A
Q1: How to quickly determine if an existing washing machine causes physical damage to towels?
A1:
- Do a white sock test: Place a pair of new white cotton socks (sealed) into an empty machine and run a full washing cycle. Afterward, carefully inspect the socks for snags or pulled threads.
- Check towels regularly. If damage mostly appears in specific shapes (such as long tears) or locations, it is likely related to burrs or gaps inside the equipment.
Q2: Besides equipment, how to avoid chemical damage in daily operation?
A2: The key is standardization.
Luandries should follow guidelines from detergent suppliers and ensure that there is enough rinsing. Also, it’s a good idea to regularly check the washing water’s pH level and chemical residue.
Q3: What indicators help judge durability when purchasing towels?
A3: Focus on the following:
– For the same size, heavier towels normally have denser yarn, so they last longer.
– Towels should be made with long-staple cotton.
– The loops on the surface need to be tight and even, so they don’t pull out easily.
– The supplier should give test reports that meet national standards or higher.
