QUI TRNH KIM

TRA VI

Hynh Trng Ngha

SAR-01/1

1. Mc ch

Kim tra bng th gic nhm xc nh cht lng

vi c th chp nhn dng sn xut hay khng.

Lm gim bt cc s c pht sinh trong sn xut

2. i tng kim tra:

Tt c cc cy vi nhp vo kho.

3. Trch nhim:

Nhn vin kim tra vi.

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1.Ly mu kim tra:

Chn ngu nhin 10% cy vi ca tng lot, tng t vi nhp v.

i chiu Tem vi & cc ti liu nh bng Mu, Packing listc trng khp hay khng ?

Kim tra v ngai quan bao b, v sinh.

2. Phn LOT vi:

Kim tra tch theo tng LOT, Mi cy vi u phi ly mu vung 10CM X 10CM . (Hay s dng my ng l trn)

Trn mi mu vi phi ghi lai y s cy vi v LOT vi V d 1/2, 1/4 (LOT 1 cy s 2 v LOT 1 cy s 4)

3. Kim tra mu sc & loang mu vi:

Cc mu vi c kim tra mu sc mu bng hp mu di loai nh sng yu cu (Light Box) v cy so mu.

C 3 cch kim tra mu sc

Kim tra mu hai bn bin v gia cy

Cch kim tra mu u cy v cui cy

Cch kim tra loang mu ngang kh vi

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BA NG PHN LOT MA U

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Kim tra mu hai bn bin v gia cy

B mt B mt

Bin vi vo 9 Bin vi vo 9

Cch kim tra mu u cy v cui cy

u cy vo 2Y

Cui cy vo 2Y

B mt

B mt

Cch kim tra loang mu ngang kh vi

Ly mu vi khang 0,5M v

ct lm 4 an theo s 1 4 v lm mi tn gi chiu tuyt

May lai theo s th

t nh hnh v &

kim tra loang

mu

Hp mu (Light box)

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QUI TRNH V KIM TRA VI Kim tra Cu tao/ Trng lng/ Mu sc/ Tnh

cht vi.

1.Kh vi: Kh vi c o ba v tr: yard th 5 u cy vi,

gia cy vi v yard th 5 t cui cy vi.

Lu y khi o tnh kh vi t l kim vo.

Ring vi c lp trng tnh t lp trng vo.

Tt c phi c ghi nhn & c mu nh kem khi bo cho

cc b phn x ly

2.Chiu di: Kim tra chiu di cy vi thc t vi chiu di ghi trong

tem ghi trong tng cy.

Nu l vi thun cn phi qui i cng thc tnh trng lng

i chiu.

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3. Kim tra b mt vi l iu bt buc tuy nhin trong trng hp vi coated hay vi c trng keo nh vi dng cho o Ma hay cho o p sym th phi kim tra hai mt.

4. Bn kim vi phi theo tiu chun sau:

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KIM TRA VI TNH TRNG LNG & QUI I

1. Qui i M2 ra Yds

V d Trng lng 200GR/M2

Kh vi 60/62

21.53 S cng thc tnh qui i gr/Yds

Ta s tnh qui i nh sau :

200gr/M2 X 62/2/21.53 = 288gr/Yds

200gr/M2 nhn kh ln 62 chia 2 ly bnh qun ri chia 21.53 s

bng 288gr/Yds.

2. Qui i t trng lng ra s yard.

Ta c 180gr/M2, kh 58/60 v 250gr/yds

Trong Sticker s ghi bng 17kgs v 68 Yds

V d sau khi kim tra trong cy vi thc t :

190gr/ M2 v kh 60/62

190gr/M2 X 62/2/21.53 =274 gr/Yds (0.274kg/yds)

17kg/0.274 = 62Yds nh vy vi thiu trong cy khong 6 yard 12

CC TNH HUNG X L Nu c s khc nhau v Mu sc th cc mu vi

phi c xc nhn ca khch hng.

Sp xp cc mu vi theo sc v ghi vo bo co

gi cc b phn lin quan nh Phng K thut, P k

hoach, P.Ct

Trong trng hp sn phm may mc yu cu git

th phi tin hnh kim tra sc mu vi mu vi

git.

co rt vt trn 2% phi ghi bin bn bo

phng k thut x ly. trn 7% bo phng K

hoach lm vic vi nh cung cp b sung phn hao

ht.

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3. Kim tra li:

Trong khi kim tra, mi loai li vi phi lu lai mu trong phiu li vi v QA phi xc nhn vo phiu li vi.

Dng nhn mi tn nh du li.

Ty thuc vo dang li, v tr li, thiu vi trong cy, kh nh m vic kim tra vi cn tng thm. Ti a l 20% s vi c kim tra.

Tt c cc cy vi li phi tch ring v ghi ch r rng ni ring bit.

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Khng chp nhn vi c kh to nh. Nu phi qui kh th s lng thiu vi s c thng bo cho khch hng cp b.

Nu li vi hay khc v sc n mc gn vt gii han cho php th phi may mt sn phm t loai vi khch hng xc nhn.

Nu mu c cng nhn th li vi/ khc sc c dng lm mu cho nhng cy vi cn lai.

Nu mu khng c cng nhn th tip tc kim tra

s lng li trong 20% s vi ca n hng.

Trong trng hp s lng kim thm khng at th

phi kim 40% hay 100% ty theo mc an tan

cho sn xut.

Sau khi kim tra, t l loai b v t l thay th c

tnh ton cp b cho nh my.

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Nhim v ngi kim vi

Lm v sinh my kim vi v khu vc

kim vi trc khi kim vi.

Kim tra s lng v yu cu kim.

Bo m kim tra 10% s lng vi.

nh du li bng nhn mi tn v ghi

vo bo co.

o kh vi 3 ln: u cy, gia cy v

cui cy vi.

Cp nht vo bo co theo biu mu c

sn. 16

KIM TRA VI THEO H THNG 4 IM.

Tt c nhng li vi nhn thy r rng t khong

cch 3 inch u tnh im v ghi nhn l li vi.

Cch tnh im cho li vi:

* Li t 0.1 n 3 1 im

* Li t 3 n 6 2 im

* Li t 6 n 9 3 im

* Li t 9 tr ln 4 im Li lng vi bt k to nh 4 im Sau khi kim tra ht 10% cy vi, ngi kim tra

phi tnh s li theo cng thc sau: Tng s li * 36 * 100 = S li/ 100 yds2

Chiu di thc t * Kh thc t

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Cng thc xc nh s im ca li :

CCH TNH IM LI How to work fabric inspection

S im thc t 36

Chiu di thc t Kh vi thc t (inch) 100 im / 100 sqyds X X =

Result By roll Kt qu kim tng cy vi

Result By LOT Kt qu kim tng LOT vi

Pass - less than 25 points

Pass (t yu cu) - t hn 25 im

Pass - less than 20 points

Pass (t yu cu) - t hn 20 im

Fail- more than 26 points

Fail (khng t) - Nhiu hn 26 im

Fail- more than 21 points

Fail (khng t) - Nhiu hn 21 im

When result is "fail ", 100% fabric

inspection should be carried out .

Khi kt qa "khng t", 100% Vi cn phi kim tra li.

When result is "fail ", 100% fabric

inspection should be carried out .

Khi kt qa "khng t", 100% Vi cn phi kim tra li.

o xin ca vi / sc

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Deviation for

Skewness

lch nghing ca vi / sc vi

Nu l vi sc ngang th tri vi bn tri nm song song vi mp bn, o s chnh lch ca sc vi bn phi so vi mp bn v tnh t l xin ca vi /

sc. xin = chnh lch ca vi/sc* 100%

Kh vi

Tt c vi nhn li sau x l ti ch, phi ti kim tra nh bnh thng, kim 10%, Th nghim ni b, trng lng v co rt xc nh c ci thin v x l ti ch cha.

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THNG L (Holes)

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2

RCH : si b mc (Crack Marks)

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4

Mn: b ch xt khi hon thnh

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6

Nt Si, Xe Len : do ni si (Slub)

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8

NHIM SI TP (Mixed Yarn)

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10

VT NHUM (Dye Streaks / Print)

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12

L KIM : do my cng kim (Needle lines)

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Li dnh du (Dirty mark, Oil)

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Li dt, Rn vi vt di : do my ngng dt (Filling Bands)

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LOANG : vi ng gi khi cn t (Colour Shading)

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Sc vi : do si khc lot (Mixed Yarn)

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Li si: do my dt b li

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Si b mc ra

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VT DU : khi han tt vi (Oil)

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28

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N si Vi (Float)

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THIU SI (Missing Yarn)