Yes, you can block a cashmere sweater, but spray blocking is generally the preferred method.
Understanding Blocking and Cashmere
Blocking is a finishing process used in knitting and crochet to shape and set the final dimensions of a project. It involves wetting the item and then shaping it as it dries. Cashmere, being a delicate fiber, requires a gentle approach.
Why Spray Blocking is Recommended for Cashmere
- Delicacy: Cashmere fibers are weak when wet. Wet blocking (soaking the entire garment) can potentially damage or stretch the sweater excessively.
- Halo Preservation: Cashmere has a characteristic "halo" or fuzziness. Wet blocking can sometimes flatten this halo, while spray blocking helps preserve it.
Spray Blocking Technique for Cashmere Sweaters
Here's how to spray block a cashmere sweater:
- Prepare a Blocking Surface: Lay out a clean, flat surface. Blocking mats are ideal, but a clean towel on a bed or floor works too.
- Shape the Sweater: Gently lay the cashmere sweater on the blocking surface and shape it to the desired dimensions. Use pins to hold the edges in place if necessary, paying attention to necklines, cuffs, and hems. Avoid over-stretching.
- Spray with Water: Using a spray bottle filled with cool, clean water, lightly mist the entire sweater. Ensure the sweater is damp, but not soaked.
- Allow to Dry: Let the sweater dry completely. This may take several hours or overnight. Avoid direct sunlight or heat, as this can damage the fibers.
- Remove Pins: Once the sweater is completely dry, carefully remove any pins.
Wet Blocking (Use with Caution)
If you choose to wet block, proceed with extreme caution:
- Gentle Soak: Use cool water and a delicate detergent specifically designed for wool and cashmere. Gently submerge the sweater, avoiding any harsh agitation.
- Rinse Carefully: Rinse the sweater in cool water until all the detergent is removed.
- Roll in a Towel: Do not wring the sweater. Instead, gently roll it in a clean, dry towel to absorb excess water.
- Shape and Dry: Lay the sweater flat on a blocking surface and shape it to the desired dimensions. Use pins sparingly. Allow to air dry completely, away from direct heat or sunlight.
Important Considerations:
- Always test a small, inconspicuous area of the sweater first to ensure the blocking method doesn't cause any unwanted changes.
- Handle the wet cashmere sweater with care to prevent stretching or distortion.
- Refer to the yarn label or pattern instructions for specific blocking recommendations.
In summary, while you can block a cashmere sweater, spray blocking is generally the safer and more effective method for preserving the fiber's delicate nature and halo. Wet blocking is possible, but it requires extra care and attention.
