Machine Operation, Spotting, and Pressing Rotation

Objective. Student independently loads, programs, and unloads dry-cleaning or wet-cleaning machines and a minimum of 20 real garments through the spotting board and finishing equipment, achieving the host site's release and presentation standard on at least 85 percent of pieces.

This externship rotation puts your classroom knowledge to work on real customer garments. Your goal is to move fabric safely and efficiently through three linked stations—machine, spotting board, and finishing equipment—while meeting the host site's quality standard on at least 85 percent of the pieces you process.

Machine Loading and Programming

Before you touch the machine, confirm your PPE is in place: chemical-resistant gloves, safety glasses, and a solvent-rated apron where required. Check the equipment log for any open abnormalities from the previous shift. Never operate a machine flagged for a mechanical issue without your supervisor's clearance.

Sort the load by fabric type, color family, and care label instruction before opening the door. Overloading reduces solvent or water circulation and leaves garments wrinkled and under-cleaned; follow the machine manufacturer's rated capacity, usually expressed as a percentage of the drum's weight capacity. For dry-cleaning machines, select the correct solvent charge level, distillation cycle, and drying time for the load. For wet-cleaning machines, dial in water temperature, mechanical action (gentle or normal agitation), and the appropriate detergent and conditioner profile—delicates typically receive cooler water and minimal agitation. Log every parameter: load weight, program selected, solvent or detergent used, cycle start and end time, and any alarms or deviations. Your supervisor countersigns each entry; this record protects the customer and gives the site data for process improvement.

At cycle end, unload promptly to prevent wrinkling. Inspect each piece as it comes out: note residual odor, unusual moisture, or visible staining that survived the machine. Tag anything that needs re-processing or escalation before it moves forward.

Working the Spotting Board

Spotting is systematic, not random. Work from the outside of a stain toward its center to avoid spreading it. Apply mechanical action—tamping or brushing—only as aggressively as the fabric can tolerate; delicate weaves and embellishments require light, blotting action only.

Identify the stain type before selecting chemistry. Protein-based stains (blood, egg, dairy) respond to enzyme-based or neutral spotting agents before heat is applied; heat sets protein. Tannin stains (coffee, tea, wine) respond to tannin-type spotters and steam flushing. Oil and grease stains need a petroleum-based solvent or dry-side spotter. Dye stains and rust may require specialty agents; always test on a hidden seam first.

Your spotting gun delivers steam, water, or air. Steam opens the fiber and carries the stain out; water rinses residue; air dries the area before the garment moves on. Use your site-approved agents only—never substitute products not on the approved list, because unknown chemistry can set stains or damage dyes.

Document every garment in the externship log: garment description, stain type, agent(s) used, mechanical action applied, and outcome (released, reduced, or flagged for re-inspection). This log is reviewed during your evaluation and teaches you to see patterns in your own spotting decisions.

Pressing and Finishing

Presentation is what the customer sees, so finishing quality is what earns repeat business. Before you press any piece, confirm the fiber content and care label are consistent with the temperature setting you intend to use. Steam should be dry and consistent; excessive moisture from a wet boiler can water-spot silk and other sensitive fabrics.

Work shirts on a shirt unit or utility press, starting with the collar and cuffs—small details first—then sleeves, then the body. Trousers require careful alignment of the inseam and outseam before the crease is set; a double crease is a re-do. Structured jackets need a form finisher or a combination of the utility press and hand iron: shape the chest first, then the sleeves, using a sleeve board to avoid imprinting seams on the face of the fabric. Knits are finished with steam and gentle tension only—never press a knit flat under direct iron pressure or it will distort.

After finishing, inspect against the facility's presentation standard: smooth seams, correct creases, no shine, no burns, no residual staining, and clean closure hardware. Bag the garment immediately to protect the finish. Record your self-assessment notes—honest self-evaluation is how your speed and quality improve fastest.

Safety Reminders for This Rotation

Lock out / tag out any machine before reaching inside the drum or clearing a jam.
Spotting agents can be flammable, corrosive, or harmful by inhalation; read the SDS before first use and ensure ventilation is adequate.
Steam equipment operates at high pressure; never defeat safety interlocks on presses or irons.
Report any skin irritation, eye contact with chemicals, or equipment malfunction to your supervisor immediately.
Keep your externship log current; incomplete records are a safety and liability issue for the site.

Steady, accurate work at each station—not rushed work—is what gets you to the 85 percent quality standard and builds the professional reputation you will carry into your career.

Key terms10

Solvent chargeThe measured volume of dry-cleaning solvent loaded into the machine drum and tank for a given cycle, selected based on load weight and fabric type.

Mechanical actionPhysical agitation—tamping, brushing, or drum tumbling—used during spotting or washing to loosen and release soil from fiber.

Protein stainA stain originating from animal-protein sources such as blood, egg, or dairy; enzyme or neutral agents are applied before heat because heat sets protein permanently.

Tannin stainA stain from plant-based sources such as coffee, tea, or wine; treated with tannin-type spotting agents and steam flushing.

Spotting gunA handheld tool at the spotting board that delivers steam, water, or compressed air to flush and dry stain areas during the spotting process.

Form finisherA finishing machine that inflates a garment with heated air and steam to restore shape and remove wrinkles without direct contact pressing, used especially on jackets.

Equipment logThe site's official written record of each machine cycle's parameters, alarms, and abnormalities, countersigned by a supervisor.

Presentation standardThe host facility's defined criteria for acceptable garment appearance after finishing, including smoothness, crease placement, absence of shine or staining, and proper bagging.

Wet-cleaningA professional water-based cleaning process using computer-controlled washers and dryers with specialty detergents and conditioners, designed to safely clean garments labeled dry-clean only or delicate.

SDS (Safety Data Sheet)A standardized document required by OSHA that describes a chemical product's hazards, safe handling procedures, PPE requirements, and emergency response information.

In class: Load and program at least five full machine cycles across the rotation, selecting correct solvent charge or water-temperature and detergent profile for each load type, recording cycle parameters and any abnormalities in the equipment log; supervisor countersigns each entry. · Work the spotting board daily under mentor observation, applying mechanical action, steam, and site-approved spotting agents to a running tally of customer stains—document each garment, stain type, chemistry used, and outcome (released, reduced, or flagged for re-inspection) in the externship log. · Complete a timed pressing and finishing session each shift on a variety of garment types (shirts, trousers, structured jackets, and knits), receiving verbal feedback from the finisher-mentor and recording self-assessment notes against the facility's presentation standard before garments are bagged.
Materials: Dry-cleaning or wet-cleaning machine, spotting board and gun, steam iron, utility press or form finisher, site-approved spotting agents and lubricants, PPE kit, equipment log, externship log binder, DLI Spotting Manual (or equivalent site reference)
Check: Supervisor completes a standardized production-quality checklist for each student-processed garment sampled (minimum 10 garments per two-week evaluation period); student must meet the site's acceptable-release and presentation standard on at least 85 percent of sampled pieces. Results are recorded in the externship log and signed by both parties.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.