Yaa Latest Dry Out Washing Techniques Inwards Denim Garments (Part-2)
Monday, 17 December 2018
Edit
Latest Dry Washing Techniques inwards Denim Garments (Part-2)
Asma Akhi
&
Md.Hasibur Rahman Sunny
Dept. of Textile Engineering
Bangladesh University of Business & Technology
Dept. of Textile Engineering
Bangladesh University of Business & Technology
Previous Part
Denim washing:
Denim washing is done to hit effects similar color fading amongst or without patchiness, crinkles, seam puckering, hairiness, De-piling, softened-hand feel, stabilized dimensions etc.
Types of Denim Wash:
Denim washes are 2 types:
A. Mechanical washes
Types of Garments Wash:
A. Mechanical washes
- Stone wash
- Micro-sanding
- Denim bleaching
- Enzyme launder
- Acid wash
 |
| Fig 02: Wash Type of Denim |
- Normal wash/ garments wash/ rinse wash
- Hand Brush/Hand Scraping
- Pigment wash
- Whiskering
- Caustic wash
- PP Spray/PP Sponge
- Silicon wash
- Destroy
- Stone wash
- Crinkle
- Enzyme wash
- 3D
- Stone Enzyme wash
- Tagging
- Acid wash
- Sand Blasting
- Bleach launder
- Tinting wash Overall Whiskering
Dry Process:
Hand Scraping/Hand Brush:
Permanent crinkle given on denim surface are known equally crinkle effect. Resin application is done on denim to retain crinkle past times using Fe machine or pressing crinkle machine in addition to fifty-fifty after wash.
3D:
First get got to practise spray resin on the specific expanse nosotros desire to create 3D effect. Without resin spray 3D lawsuit is non possible. Influenza A virus subtype H5N1 garment is inwards metallic plate. Crease is made inwards required place. Then 2 times pressing is done. The temperature is 1900c. Light temp is K watt, it deep the resin in addition to and so it post to the curing to brand wrinkle. Then it laid to the dummy in addition to makes 3D lawsuit past times the assist of mitt of workers manually.
Wet Process:
Desizing Wash:
To take the size materials from the garments enzyme launder is applied. Enzyme launder is done on garments made from denim & jeans fabric, twill stuff garments. Sometimes knit items are likewise subjected for Enzyme wash. Garments made from indigo, vat, straight etc dyed stuff tin live enzyme washed. Enzyme industrial plant chemically non mechanically for this argue it render less damage/wastage in addition to so rock wash. It improves improve the color fastness & rubbing fastness. Enzyme improves the anti-pilling properties in addition to decrease the hairiness thus it gives a real smoothen surface of the garments.
Bleach wash:
Garments made from indigo, vat, reactive, straight etc dyed stuff tin live bleach washed. It is a discoloration procedure past times oxidation action. Color tin live removed uniformly from the garment in addition to removal of color done equally per requirement. In full general at that topographic point are 3 categories such equally lite bleach (where maximum color is removed), medium bleach in addition to bleach. All types of garment tin live washed. Such as: woven knit garments. In illustration of woven stuff a pretreatment (Desizing) procedure is required. Dust, dirt, crude oil spot, impurities etc. are removed that may come upward from during procedure i.e. cut- ting, stitching in addition to the dorsum process.
Hand Scraping/Hand Brush:
Scraping tin live done on inflated prophylactic balloons for improve lawsuit (horizontal or vertical it’s upward to operator’s convenience), fifty-fifty it tin done evidently wooden board of garment size & mitt pressure level should live uniform inwards social club to larn improve results.
Destroy:
One of the nearly pop lamentable effects currently, ‘Destruction’ is an fine art which brand denim hold off unique & used.
Tagging:
This lawsuit tin live designed anywhere on the garment inwards dissimilar styles. Most favorite areas for tacking are on waistband, bottom hems, dorsum steal in addition to front end steal corners etc. On front end or dorsum sides of garment, tacking tin likewise designed horizontal of vertical patterns on total length panel.
Whiskering:
Whiskers are i of the nearly of import blueprint of a used hold off garment. The persuasion of whiskers is taken from the worn out lines in addition to impression patterns generated past times natural wearing on hips in addition to front end thigh area.
Potassium Permanganate Spray:
PP Spray is beingness done on denim garments to reach local abraded expanse to appear whiter than dorsum solid soil indigo color shade.
Crinkle/3D:
Permanent wrinkles given on denim surface are known equally crinkle effect. Resin application is done on denim to retain crinkle.
First get got to practise spray resin on the specific expanse nosotros desire to create 3D effect. Without resin spray 3D lawsuit is non possible.
Function of Chemical Used inwards Washing:
Desizing:
Hand Scraping/Hand Brush:
- Garments are wearing on a dummy or pattern board.
- Hand scraping is done on specific expanse of garments past times emery newspaper according to approve sample.
- Different type of emery newspaper is used similar 220, 320,400,600.
- Most mutual used degree no of emery newspaper is 320.
- Then sent for farther processing.
- This procedure is done manually past times destroy machine.
- Glass pencil/blade is used inwards this process.
- Destroy is done on specific expanse of garments.
- Destroying warp yarn past times blade gives novel outlook.
- Garments sent for farther processing.
- Tagging is done on garments for fashion in addition to value added fashion wear.
- In this procedure tag pivot is used.
- At kickoff garments are clipped amongst tag pivot past times tagging machine.
- After launder upper part of garment occurs fold marks & within of tagging occurs nighttime shade.
- At kickoff blueprint is produced on pattern board according to buyer requirement.
- Then pattern board is placed within the garments.
- Then mitt rubbing is done past times emery newspaper on Specific area.
- By using dissimilar types of emery newspaper (220,320,400,600) blueprint is produced on surface of garments.
- Most mutual used degree no emery newspaper is 320.
- Then sent for farther processing.
- At kickoff a solution is made past times potassium permanganate & water.
- Sometimes CH3COOH (acetic acid) is used for solution preparation.
- A spray gun machine is used for spraying the P.P solution.
- Spray gun m/c spray the solution equally per requirement.
- A few minutes afterwards reddish color is flora on the surface of garments.
- Then garments sent for farther processing.
Permanent crinkle given on denim surface are known equally crinkle effect. Resin application is done on denim to retain crinkle past times using Fe machine or pressing crinkle machine in addition to fifty-fifty after wash.
3D:
First get got to practise spray resin on the specific expanse nosotros desire to create 3D effect. Without resin spray 3D lawsuit is non possible. Influenza A virus subtype H5N1 garment is inwards metallic plate. Crease is made inwards required place. Then 2 times pressing is done. The temperature is 1900c. Light temp is K watt, it deep the resin in addition to and so it post to the curing to brand wrinkle. Then it laid to the dummy in addition to makes 3D lawsuit past times the assist of mitt of workers manually.
Wet Process:
Desizing Wash:
- This is real kickoff & basic stride but nearly of import stride of washing.
- This procedure removes impurities, starch & stains during handling of fabric.
- Washing amongst High Alkaline agents ( i.e. Soda ash )
- Washing amongst High Acidic agents (i.e. Acetic acid )
- Washing amongst Oxidative chemicals ( i.e. Hydrogen Peroxide )
To take the size materials from the garments enzyme launder is applied. Enzyme launder is done on garments made from denim & jeans fabric, twill stuff garments. Sometimes knit items are likewise subjected for Enzyme wash. Garments made from indigo, vat, straight etc dyed stuff tin live enzyme washed. Enzyme industrial plant chemically non mechanically for this argue it render less damage/wastage in addition to so rock wash. It improves improve the color fastness & rubbing fastness. Enzyme improves the anti-pilling properties in addition to decrease the hairiness thus it gives a real smoothen surface of the garments.
Bleach wash:
Garments made from indigo, vat, reactive, straight etc dyed stuff tin live bleach washed. It is a discoloration procedure past times oxidation action. Color tin live removed uniformly from the garment in addition to removal of color done equally per requirement. In full general at that topographic point are 3 categories such equally lite bleach (where maximum color is removed), medium bleach in addition to bleach. All types of garment tin live washed. Such as: woven knit garments. In illustration of woven stuff a pretreatment (Desizing) procedure is required. Dust, dirt, crude oil spot, impurities etc. are removed that may come upward from during procedure i.e. cut- ting, stitching in addition to the dorsum process.
- Calcium hypo chlorite
- Sodium hypo chlorite
- Hydrogen peroxide
- Potassium permanganate
Hand Scraping/Hand Brush:
Scraping tin live done on inflated prophylactic balloons for improve lawsuit (horizontal or vertical it’s upward to operator’s convenience), fifty-fifty it tin done evidently wooden board of garment size & mitt pressure level should live uniform inwards social club to larn improve results.
Destroy:
One of the nearly pop lamentable effects currently, ‘Destruction’ is an fine art which brand denim hold off unique & used.
Tagging:
This lawsuit tin live designed anywhere on the garment inwards dissimilar styles. Most favorite areas for tacking are on waistband, bottom hems, dorsum steal in addition to front end steal corners etc. On front end or dorsum sides of garment, tacking tin likewise designed horizontal of vertical patterns on total length panel.
Whiskering:
Whiskers are i of the nearly of import blueprint of a used hold off garment. The persuasion of whiskers is taken from the worn out lines in addition to impression patterns generated past times natural wearing on hips in addition to front end thigh area.
Potassium Permanganate Spray:
PP Spray is beingness done on denim garments to reach local abraded expanse to appear whiter than dorsum solid soil indigo color shade.
Crinkle/3D:
Permanent wrinkles given on denim surface are known equally crinkle effect. Resin application is done on denim to retain crinkle.
First get got to practise spray resin on the specific expanse nosotros desire to create 3D effect. Without resin spray 3D lawsuit is non possible.
Function of Chemical Used inwards Washing:
Desizing:
- It is used to take mainly starches, waxes, fats, pectin’s, minerals & Indigo dye from denim, twills, poplin &canvass fabrics etc.
- The activeness of enzyme during enzyme launder it hydrolysis the cellulose.
- At kickoff it attacks the having projecting fibers & hydrolyzed them.
- Then it attacks the yarn part & partly hydrolyzed them.
- As a termination color comes out from yarn part & faded lawsuit is produced.
- It is used for neutralizing the activity of KMnO4 on fabric/solute.
- Bleaching agent is an oxidizing agent.
- It is used for color out from denim garments.
- We tin reach dissimilar shade (dark, medium, light) from garments past times this agent.
- Soda ash create alkali metal medium inwards launder bath.
- It helps to uniform bleaching activeness inwards bleach bath.
- It has cleaning ability &help color fading impact of garments.
- It is used for color fixing inwards dye bath.
- It is likewise used for maintaining pH of launder bath.
- It is used for discolorations of fabric.
- It is used to brand the garments soft.
- It likewise provides first-class lubricating properties.
- It helps to exhaust dye inwards to the fiber.
- H2O₂ creates the prime number utilisation inwards bleach launder technique.
- In alkali metal medium H2O2 breaks upward in addition to gives roughly perhydroxhyle ion.
- Hydrogen per oxide is used inwards scouring, bleaching bathroom to hap bleaching activeness for white/ready for dyeing of greyness stuff garments.
- It is likewise used for neutralizing the garments from alkali metal condition.
- Resin is used for semi permanent creases inwards denim.
- Binder is a celluloid erstwhile consisting diverse polymer.
- Polymer contains reactive grouping & it forms crosslink during curing.
- To neutralize the alkali metal status of garment.
- To command pH value inwards launder bath.
Next business office volition lay out soon.....