A kind of preparation method for drawing trousersTechnical field
The present invention relates to hygiene article sector more particularly to a kind of preparation methods for drawing trousers.
Background technique
The existing absorber composition for drawing trousers to generally comprise coat nitride layer and be arranged in outer clothing layer, coat nitride layer haveTwo kinds of structures of single piece type and two-piece type, the coat nitride layer of single piece type is also needing to cut leg opening after bluk recombination with absorbing, and two panelsThe structure of formula with absorb bluk recombination after directly form leg opening, it is only necessary to waistline area is welded to cut again list can be obtainedTrousers are drawn in the drawing of piece.The preparation method of trousers is drawn in traditional drawing, is usually first cut to absorber, is cut the absorption for monolithicBody, then the absorber of monolithic is rotated by 90 °, it is then compound with coat nitride layer, then the sealing at left and right sides of waist area is carried out, mostIt cuts again afterwards.Traditional coat nitride layer is usually to be made of elastic compound among two-layer nonwoven, in coat nitride layer, point of elasticCloth has great influence to the drawing force of waistline, and traditional drawing draws the drawing force for not having external clothing layer in trousers preparation process to carry outTest, the size requirement for causing the size for drawing trousers to prepare rear waistline against regulation, causes the drawing produced to draw trousersThe size of the same size waistline is not but identical, when being sold on the market, will suffer the complaint of client, and then influence customersThe loss of body.
Chinese Patent Application No. 201610554343.1 discloses a kind of high-absorbable pants for infants and its manufacture craft,It includes the following steps: the cored non-woven wraps compound core body for 1) being jetted through glue, by compacting rod pressurizing device compound core bodyPreliminary consolidation covers the T-shirt non-woven fabrics for being jetted through glue；2) T-shirt non-woven fabrics and compound core body are formed by compacting rod pressurizing deviceThe absorptive core structure for drawing trousers is made in compacting；3) bottom non-woven fabrics and PE film it is compound it is good after fabric is made, in bottomElastic waistline, elastic waistline elastic, outer layer non-woven fabrics have been bonded in structure and abandon patch；4) by fabric and absorptive core knotStructure is bonded；5) surface layer non-woven fabrics encirclement non-woven fabrics, three-dimensional shield elastic, plane elastic have been bonded, then by itself and suctionIt receives core to be bonded, the two sides of surface layer non-woven fabrics are sticked on fabric, and the centre of surface layer non-woven fabrics is sticked to absorbent coresIn body structure, there are expansion spacies between absorptive core structure two sides and surface layer non-woven fabrics two sides；6) cutting of side waist is then carried outAnd inhale rim charge, carry out to pressure conveying and it is longitudinal folding, carry out the cutting of finished product monolithic simultaneously be 3020621650ff；7) it then carries out at automatic inspection rejectsReason, qualified product input piler, carry out automatic wafer-counting, enter bag automatically, finally carry out finished product packing sealing, and be packed into carton joint sealingIt is packaged.The trousers coefficient of expansion with higher is drawn in the drawing that manufacture craft disclosed in it obtains, and can extend drawing drawing trousers uses the time,But the screen resilience of waistline is not pre-processed in the manufacturing process of waistline system.
Summary of the invention
Therefore, for the above content, the present invention provides a kind of preparation method for drawing trousers, and trousers are drawn in the drawing for solving the prior artNot carrying out test to the stretching screen resilience of waistline in production process causes product waistline stretching screen resilience obtained not of uniform sizeDefect.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions: a kind of preparation method for drawing trousers, packetInclude following preparation step:
1) preparation of absorber: defining absorber has longitudinal direction alongst and the transverse direction along width direction,The absorber includes liquid permeability surface layer, absorbent cores and the opaque liquid bottom that from top to bottom successively lamination is arranged, the absorptionBody, which is cut into after single item, to be rotated by 90 ° on-line normalization and enters next process；
2) prepare coat nitride layer: the coat nitride layer includes preceding clothing layer and rear clothing layer, the preceding clothing layer and rear clothingNitride layer is made of the first non-woven fabrics and the second non-woven fabrics and the elastic being arranged between the first non-woven fabrics and the second non-woven fabrics；
3) it draws the waist of trousers to enclose screen resilience test: elastic force test being carried out to clothing layer using puller system, the puller system includesFixture, the controller being electrically connected with fixture, the screen being electrically connected with the controller；A, it is first switched on to puller system and preheats 15-20min；B, it is standby to cut out calibration: in its natural state, it is 2-3 sections that coat nitride layer is cut along waistline width direction, and when cutting cannot switch toElastic is rounded as axis using waist margins welding position and removes waistline, and the waistline after definition cutting is section 1, section 2, section 3；C, section 1 is clamped in the upper and lower ends of the fixture of puller system respectively, when clamping cannot clamp elastic, and maintaining segment 1 is being straightened naturallyAnd without bending state, the distance between fixture upper and lower side is L0 to record at this time；D, it is L, selection that the tensile elongation of trousers is drawn in definitionThe correspondence test program of controller sets experiment parameter: speed 500mm/min, is displaced L '=L-L0；E, side's display on the screenNumerical value reset, then press " beginning " key and enter test mode, to puller system carriage return after, record its " peak force " F1；The movement that above-mentioned steps c to step e is carried out to section 2 and section 3, records " peak force " F2 and F3；The waist of trousers is drawn to enclose screen resilience F=F1+F2+F3；Drawing the tensile elongation L of trousers to correspond to different sizes has different values, specifically:
| Draw trousers size | M code | L code | XL code | XXL code | XXXL code |
| L=tensile elongation (mm) | 292.5 | 300 | 307.5 | 315 | 315 |
4) waist of trousers will be drawn to enclose screen resilience F and compare with preset screen resilience standard value, if error more than ±10%, then needing external clothing layer to carry out reprocessing processing makes screen resilience in the acceptable error range of standard value, then carries outIn next step handle, if error within the specified scope if be directly entered next step treatment process.
A further improvement is that: the next step treatment process of step 4) are as follows: compound, the waistline area of absorber and coat nitride layerSealing, cutting.
A further improvement is that: the reprocessing of coat nitride layer handles specific steps are as follows: adjusts the distribution spacing or choosing of elasticSelect the elastic with different stretch ratio.
By using preceding solution, the beneficial effects of the present invention are: the preparation method of trousers is drawn in drawing of the invention, in clothingAfter the completion of nitride layer preparation, the screen resilience of waist area is tested, the waist of trousers will be drawn to enclose screen resilience and preset reboundPower standard value compares, if error is more than ± 10%, external clothing layer, which carries out reprocessing processing, makes screen resilience in standard valueIn acceptable error range, then be further processed, if error within the specified scope if be directly entered in next step processing workSequence is tried hard to keep by increasing the waistline screen resilience testing procedure so that the drawing of the identical size of preparation draws the waistline of trousers to stretch reboundHold in relatively uniform range, avoid the occurrence of that waistline screen resilience is of different sizes, lead to that size has it is less than normal have it is bigger than normal, in turnInfluence the comfort of user's wearing；Further, the reprocessing processing of coat nitride layer is comprised the concrete steps that using adjustment elasticBeing distributed spacing or selection has the elastic of different stretch ratio, can reduce the rebound of elastic by increasing the distance between elasticPower, by selecting the biggish elastic of draw ratio that screen resilience can be improved.
Detailed description of the invention
Fig. 1 is the schematic perspective view of puller system in the embodiment of the present invention one；
Fig. 2 is the positive structure schematic of puller system in the embodiment of the present invention one.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to specific embodiment, how skill is applied to the present invention wherebyArt means solve technical problem, and the realization process for reaching technical effect can fully understand and implement.
Embodiment one
Referring to Figure 1 and Figure 2, a kind of preparation method for drawing trousers, including following preparation step:
1) preparation of absorber: defining absorber has longitudinal direction alongst and the transverse direction along width direction,The absorber includes liquid permeability surface layer, absorbent cores and the opaque liquid bottom that from top to bottom successively lamination is arranged, the absorptionBody, which is cut into after single item, to be rotated by 90 ° on-line normalization and enters next process；
2) prepare coat nitride layer: the coat nitride layer includes preceding clothing layer and rear clothing layer, the preceding clothing layer and rear clothingNitride layer is made of the first non-woven fabrics and the second non-woven fabrics and the elastic being arranged between the first non-woven fabrics and the second non-woven fabrics；
3) it draws the waist of trousers to enclose screen resilience test: elastic force test, the type of the puller system is carried out to clothing layer using puller systemNumber be LD23.102, manufacturer are as follows: Shenzhen orchid is rich to think carefully material tests Co., Ltd, the puller system include fixture 1, with folderThe controller 2 of 1 electrical connection of tool, the screen 3 being electrically connected with controller 2；A, it is first switched on to puller system and preheats 15-20min；B, sample is cut outPrepare: along the cutting of waistline width direction being 3 sections by coat nitride layer, when cutting cannot switch to elastic, with waist in its natural statePeripheral edge welding position rounds for axis and removes waistline, and the waistline after definition cutting is section 1, section 2, section 3；C, section 1 is dividedIt is not clamped in the upper and lower ends of the fixture of puller system, when clamping cannot clamp elastic, and maintaining segment 1 is being straightened naturally and without bendingState, the distance between fixture upper and lower side is L0 to record at this time；D, defining and drawing the tensile elongation of trousers is L, is with XL code drawing drawing trousersExample, L=307.5mm, the correspondence test program of selection control set experiment parameter: speed 500mm/min, are displaced L '=L-L0；E, the numerical value just shown on the screen is reset, and is then pressed " beginning " key and is entered test mode, finishes to puller system carriage returnAfterwards, its " peak force " F1=6.52N is recorded；The movement that above-mentioned steps c to step e is carried out to section 2 and section 3, records " peak force "F2 and F3, F2=4.34N, F3=3.86N；The waist of trousers is drawn to enclose screen resilience F=F1+F2+F3=6.52N+4.34N+3.86N=14.71N；4) waist of trousers will be drawn to enclose screen resilience F to compare with preset screen resilience standard value, error is in prescribed limitIt is interior, subsequently enter next step treatment process, that is, absorber and coat nitride layer is compound, the sealing of waistline area, cutting.
Embodiment two
Reference implementation example one, in the step of drawing the waist of trousers to enclose screen resilience test, for trousers are drawn in the drawing to produce XXL code,Its L=315mm, F1=7.65N, F2=3.6N, F3=3.67N, F=14.93N, for the standard value set as 13N, error is super10% is crossed, therefore externally the distribution spacing of the elastic in clothing layer is adjusted, and is tested again after adjustment, at this point, F1=5.76N, F2=3.85N, F3=3.13N, F=12.74N, error within the allowable range, then enter back into down processing work togetherSequence, other technical characteristics and embodiment one are consistent.
In the present invention, the reprocessing processing specific steps of coat nitride layer are also possible to select the elastic of different draw ratiosTo adjust the screen resilience of coat nitride layer.
The drawing that the present invention passes through is drawn in the preparation method of trousers, waistline screen resilience testing procedure is increased, so that coat nitride layerWith before absorption bluk recombination, the whole screen resilience of coat nitride layer is kept in a certain range, and then makes product waistline obtainedThe telescopic size in region is kept in a certain range, and the waistline size that the product of identical size obtains is more unified, is usedWaistline will not generate the feeling tied tight to person after use, do not have and strangle trace generation, using comfortable.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this woundMake done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.